SINUMERIK 840D sl Hardware. Manual (2011-2020)

Handheld Terminal HT 2

1.3 Connecting

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Image 1-12 Circuit example 4: Power supply switched off

The "CTRL32 / STOP button pressed" signal is not present at the Basic connection box. The

signal has no error detection facility and must, therefore, not be used for safety-critical

applications.

Note the following when connecting the "Present31 HT 2 / HT 8 connected" signal:

● Connect Pin 7 of the connection box to the digital input of the control

● Basic connection box: Pin 8 of the connection box remains not assigned

● Plus connection box: +24 V must be supplied at Pin 8

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Handheld Terminal HT 2

1.3 Connecting

1.3.2.4

PN Basic terminal box

In contrast to the PN Plus terminal box, the "Stop loop through" function is not implemented

on the PN Basic terminal box. Relays are so not required.

Image 1-13 PN Basic terminal box

Note

The emergency stop circuit is controlled via the emergency stop button when the HT 2 is

connected. If the connecting cable of the HT 2 is disconnected from the PN Basic terminal

box, the emergency stop circuit is interrupted. This leads to a safe machine stop or an

emergency stop of the system to be monitored.

Note

The "CTRL32 / STOP button pressed" signal is not present at the Basic connection box.

The signal has no error detection facility and must not be used for safety-critical applications.

Switching states of the emergency stop circuit

HT 2

Emergency

Switching status, emergency stop circuit

Stop button

Connected

Not pressed

Emergency stop circuit in the terminal box remains closed.

Connected

Pressed

The emergency stop circuit in the terminal box is open.

The system to be monitored is stopped.

Not connected

The emergency stop circuit in the terminal box is open.

The system to be monitored is stopped.

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Handheld Terminal HT 2

1.3 Connecting

1.3.3

Connection module Basic PN

1.3.3.1

Features

The connection module Basic PN was specially developed for installation in the control cabinet.

The terminating connector protrudes through the panel of the control cabinet so that the HT 2

can be connected from the outside.

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The connection module Basic PN is not hot plug-capable.

The HT 2 can either be connected to the NCU or to the PCU as thin client.

1.3.3.2

interfaces

The HT 2 is connected to the connection module Basic PN via a round connector.

The interfaces of the connection module are located at the rear:

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Handheld Terminal HT 2

1.3 Connecting

① Grounding screw M5 for potential equalization connection

Image 1-15 Rear of the Basic PN connection module

Setting the box ID

You can use rotary coding switches S1 and S2 to set a unique ID on any connection module

for station identification purposes.

Use a screwdriver to set the IDs.

The setting is entered in hexadecimal format. Values in the decimal format between 0 and 255

can be entered.

By way of an example, the figure below illustrates address 27H, which corresponds to decimal

address 39.

① Rotary coding switch for higher-order bits (S1)

② Rotary coding switch for lower-order bits (S2)

Image 1-16 Example for address "27H"

Connector pin assignments

Signal type:

Input

Output

Bi-directional signals

Potential

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Handheld Terminal HT 2

1.3 Connecting

X1, X2: Ethernet interfaces

The pin assignment of the Ethernet interfaces X1, X2 can be found in "General information

and networking", Chapter: "Connecting", Section: "Pin assignment of the interfaces".

X3: Power supply

The pin assignment of the power supply interface X3 can be found in "General information and

networking", Chapter: "Connecting", Section: "Pin assignment of the interfaces".

X7: Panel Present

Connector designa-

tion:

Connector type:

6-pin Phoenix terminal

Table 1-2

Assignment of the interface Panel Present X7

Signal name

Signal type

Meaning

PRES

"High": Panel (HT 2) plugged in

XCTL

"Low": EMER STOP button pressed ¹⁾

XFAULT

"Low": Error in emergency stop electronics ¹⁾

N.C.

Not connected

N.C.

Not connected

Ground

Function not implemented in Basic PN variant, output is not switched to "High"

X8: Emergency Stop wiring terminal

Connector designa-

tion:

Connector type:

4-pin Phoenix terminal

Table 1-3

Assignment of the emergency stop wiring terminal X8

Protective circuit

On-board jumper

between 1 and 2

On-board jumper

between 3 and 4

Note

Use this terminal for simple routing of the emergency stop cables, optional.

The connector is only used to assist looping through. The connected pins 1 and 2 as well as

3 and 4 have no additional function on the connection module.

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Handheld Terminal HT 2

1.3 Connecting

X20: Enabling buttons

Connector designa-

X20

tion:

Connector type:

8-pin Phoenix terminal

Table 1-4

Assignment of the interface enabling buttons X20

Signal name

Signal type

Meaning

ZUST1P

Electronic enabling button 1 P

ZUST1M

Electronic enabling button 1 M

ZUST2P

Electronic enabling button 2 P

ZUST2M

Electronic enabling button 2 M

N.C.

Not connected

N.C.

Not connected

N.C.

Not connected

N.C.

Not connected

X21: Emergency stop and module supply voltage

Connector designa-

X21

tion:

Connector type:

10-pin Phoenix terminal

Table 1-5

Assignment of the interface Emergency Stop and Module Supply Voltage

Signal name

Signal type

Meaning

STOP23

Emergency Stop circuit

STOP24

Emergency Stop circuit

STOP13

Emergency Stop circuit

STOP14

Emergency Stop circuit

Ground

N.C.

IN_E9

Connected P24 (jumpered to Pin8 during opera-

tion)

P24_FILT

Filtered 24V module power supply

IN_E9_EXT

Feedback signal via connected P24

IN_E12_EXT

"High": Terminating connector plugged in

Note

Pins 7 and 8 must be jumpered in order to supply a handheld terminal with power.

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Handheld Terminal HT 2

1.3 Connecting

1.3.4

Connection examples of enabling button and emergency stop button

This section contains connection examples for enabling and emergency stop buttons

corresponding to Category 3 PL d in accordance with EN ISO 13849-1:2008.

Note

To ensure Category 3 PL d in accordance with EN ISO 13849-1:2008, be sure to follow the

operating instructions for the monitoring device being used.

The monitoring devices shown in the following examples satisfy Category 4 PL e in accordance

with EN ISO 13849-1:2008.

The monitoring device and downstream components should be taken into consideration when

calculating the overall "Enabling" safety function.

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Handheld Terminal HT 2

1.3 Connecting

Connection - enabling button with evaluation unit

The diagram shows the connection of an evaluation unit with the enabling buttons of the HT 2.

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Image 1-18 Enabling button with evaluation unit

All contacts of the safety relay (contactor) KA and KB are fitted with positively-driven contacts

in accordance with EN 50205:2002.

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Handheld Terminal HT 2

1.3 Connecting

Connection - enabling button with safety relay

The diagram shows the connection of safety switching device SIRIUS 3TK2841 with the

enabling buttons of the HT 2.

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Image 1-19 Enabling button with safety relay

All contacts of the safety relay (contactor) KA and KB are fitted with positively-driven contacts

in accordance with EN 50205:2002.

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Handheld Terminal HT 2

1.3 Connecting

Connection - emergency stop button with safety relay

The following figure shows the connection of the SIRIUS 3TK2822 or SIRIUS 3TK2841 safety

relay to the emergency stop button of the HT 2.

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Image 1-20 Emergency stop button with safety relay

All contacts of the safety relay (contactor) KA and KB are fitted with positively-driven contacts

in accordance with EN 50205:2002.

Monitoring outputs may not be used for safety-related functions.

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Handheld Terminal HT 2

1.3 Connecting

1.3.5

Connecting cable

The connecting cable is an industrial cable and, thus, resistant to many solvents and lubricants.

The flexural strength is geared to the actual usage conditions.

The connecting cable is available in different lengths. You will find information in Section:

"Accessories".

① Metallic push-pull circular connector (ODU connector)

② Strain relief and kink protection for connecting cable

③ Plug connector for enabling button, emergency stop, 24 V and safety signals

④ RJ45 connector (Ethernet connection)

Image 1-21 Connecting cable of the HT 2

The connecting cable is connected to the HT 2 via the RJ 45 connector (3) and the plug

connector (4). The ODU connector (1) serves to connect the connecting cable to the terminal

box PN or the connection module PN (control cabinet installation). The tightening torque for

the nut of the ODU socket is 6.5 Nm.

The HT 2 has one cable entry on its rear side for connecting the cable. It is located under the

cover (see Section: "Control and display elements" → "Overview").

Laying the connecting cable

NOTICE

Damage to components

Only open the connection slot when the power supply voltage is switched off. Otherwise,

components could be destroyed or non-defined signal states can occur.

When the connection slot is open, the Handheld Terminal HT 2 is sensitive with respect to

electrostatic discharge.

Do not remove the ESD protection when opening the device.

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Handheld Terminal HT 2

1.3 Connecting

2.Insert the connecting cable into the cable entry.

Gently press the cable downwards until it is com-

pletely retained by the retaining elements (1).

Ensure that the cable doesn't sag away from the

mounting surface, but is located flush to the

mounting surface. Otherwise, the device could

be pulled down to the floor and damaged.

In order to avoid damaging the cable sheath, do

not route it over sharp edges.

3.Connect the RJ-45 connector(1) to the Ethernet

socket.

Press the plug connector (2) firmly into the pow-

er supply socket.

WARNING

Improper installation of the cable can result in failure of the safety functions.

When plugging in the connector plug, ensure that all cables are lying straight in the cable

guide. Check to ensure that all wires are aligned and straight and check the firm seating of

the plug connector before replacing the cable duct cover. Make sure that the cable sleeve is

installed correctly.

Note

Check to see that the cable label is not jammed in the seal.

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Handheld Terminal HT 2

1.3 Connecting

4.Put the cable duct cover on and secure it by

tightening the six screws.

NOTICE

Damage to the thread in the fastening holes

The housing of the HT 2 is made of plastic. Therefore, the mounting hole threads cannot

handle the same amount of stress as a comparable metallic housing. Therefore, do not

exceed 0.4 to 0.5 Nm of torque when tightening the screws (also for protecting the connecting

cable).

If you use a power screwdriver, ensure the max. speed of 600 rpm is adhered to (torque: 1

Nm).

The screws of the cable duct cover may only be loosened or tightened a maximum of 20

times. Otherwise, there is the danger that the threads might become damaged and the seal

of the housing will be compromised which could lead to failure of the device.

1.3.6

Power Supply

The HT 2 is supplied with power via the connecting cable of the terminal box PN or of the

connection module PN.

The input voltage range is designed for +24 VDC.

For further details, see: "General notes and interconnection" → "Operational planning"→

"General electrical conditions" → "Power supply".

1.3.7

Unplugging/plugging during operation

The ability to detect a connected HT 2 in the PLC

1. HW solution:

The X7 interface of the connection module PN Basic signals "HT 2 Present" at pin 1 for the

"active" connection module (see Section: "Connections" → "Connection module PN Basic"

→ "Interfaces").

If the connection module is "inactive", this signal is not set.

This makes the "active" connection module detectable in the PLC by wiring the above-

mentioned pins of all connection modules to digital I/Os on PLC I/O modules.

2. Permanently configured MCPs / HT 2 on one control:

If there are only permanently configured MCPs / HT 2 on a control, removal of the MCP or

HT 2 triggers the PLC alarm "400260 Machine Control Panel failed".

Based on this, an "active" or "inactive" MCP / HT 2 in the PLC can be detected.

The failure of an MCP / HT 2 is, however, only detected in the PLC if max. 2 MCP / HT 2

are permanently configured and no MCP changeover by means of FB9 (e.g. triggered by

HMI when operator focus is switched).

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Handheld Terminal HT 2

1.4 Commissioning

1.4

Commissioning

1.4.1

BIOS

1.4.1.1

BIOS powering up

After you have switched-in the power supply voltage of the HT 2, the BIOS initializes the

hardware and boots the system.

All LEDs are briefly activated after the hardware has been initialized.

The HT 2 is ready for operation.

Note

If errors occur while booting, an appropriate message is displayed (see Section: "Error

messages").

1.4.1.2

Settings in the BIOS menu

You can activate the BIOS menu by keeping the upper left key pressed while booting.

The BIOS main menu is opened.

Main menu

MAIN MENU

Image 1-22 BIOS - main menu of the HT 2

The available sub-menus are displayed at the center of the screen.

The functions that can be executed with the four keys of the upper row of keys (softkeys) are

listed in the bar at the lower edge.

Functions

Key

< ESC >

Exiting the main menu

Left (outside)

< ↑ >

Scrolling upwards

Left (center)

< ↓ >

Scrolling downwards

Right (center)

< OK >

Activating the selected menu item

Right (outside)

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Handheld Terminal HT 2

1.4 Commissioning

Submenu: Display

Submenu

Menu item

Significance

Display

Brightness

Setting the display brightness

Contrast

Setting the display contrast

Submenu: Diagnostics

Submenu

Menu item

Significance

Notes

Diagnostics

LEDs

The LEDs are switched-in one after the other in the

With this test, ensure that all of the

form of a running light.

LEDs light up and no LED remains per-

manently lit up.

Keyboard

Visualizing the pressed keys. Multiple keys can be

The upper left key exits this test.

simultaneously pressed. In addition, the LEDs of

all pressed keys are lit.

Enabling switch

Displays the state of the two enabling button cir-

This test only checks the functionality

cuits.

of the enabling buttons.

- "Off"

This test does not include any of the

- "Enabled"

other safety-relevant components

- "Panic"

(e.g. correct connection of the ena-

bling function at the machine)!

If the state of a circuit is not correctly

displayed, then the device must be im-

mediately disabled.

Override switch

Displays the position of the override rotary switch

(value 0 to 18).

Key switch

Displays the key-operated switch position.

- "Off"

- "On (1)"

- "On (2)

Handwheel

Displays the actual counter state of the handwheel.

Each time that this menu item is called,

the counter state is reset to zero.

Submenu: Info

Submenu

Menu item

Sub point

Significance

Info

Hardware

Memory

Displays the size of the main memory in MB

Flash

Displays the size of the flash module in MB

Supply

Displays the power supply voltage in volt

Temperature

Displays the internal housing temperature in °C

Software

BIOS

Displays the version number of the BIOS

Boot loader

Displays the version number of the boot loader

Coprocessor

Displays the version number of the coprocessor firmware

Counters

Hours counter

Operating hours counter (units: hours)

Power on

Power-on counter

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Handheld Terminal HT 2

1.4 Commissioning

1.4.1.3

Error handling

Faults

Problem

Cause

Solution

No display

The power supply is interrupted.

Check the power supply connection.

- all LEDs off

If the fault remains, then the device is defective.

No display

The display contrast is incorrectly

When powering-up, keep the lefthand

- LEDs briefly flash once

set.

(first) softkey pressed.

Press once, one after the other

- the righthand (fourth) softkey

- the third softkey

- the righthand (fourth) softkey

Using the second and third softkeys,

change the contrast until it is easy to read

the display.

No display

The display is defective.

- all LEDs flash permanently

Displays the message: "Test-

The "Testcommandhandler" was

Re-boot the HT 2.

commandhandler"

activated.

Error messages

Display

Description

Cause

Solution

SDRAM data line test

An error has occurred while test-

The hardware is defective.

failed!

ing the SDRAM data lines.

SDRAM data line test

An error has occurred while test-

The hardware is defective.

failed!

ing the SDRAM address lines.

SDRAM access test

An error has occurred when ac-

The hardware is defective.

failed!

cessing the SDRAM.

SDRAM fill test failed!

An error has occurred when writ-

The hardware is defective.

ing a test pattern to the SDRAM.

Unexpected SDRAM

The size of the SDRAM deter-

The hardware is defective.

size!

mined, does not correspond to

the expected size.

Wrong coprocessor ver-

The firmware of the ATmega88 is

The BIOS was updated -

Update the ATmega88 firm-

sion, update required!

too old.

however not the ATmega88

ware.

firmware.

Coprocessor communi-

An error has occurred for the cy-

cation error!

clic SPI communication with the

ATmega88.

BIOS code corrupted!

The BIOS checksum is invalid.

The BIOS has been corrup-

ted due to an unsuccessful

update or a defective flash

module.

Hardware info block in-

The hardware information block is

The block was corrupted

valid!

invalid.

when updating or the flash

module is defective.

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Handheld Terminal HT 2

1.4 Commissioning

Display

Description

Cause

Solution

Serial number not set!

The serial number is missing.

It is possible that the serial

number was deleted while

updating.

MAC ID not set!

There is no MAC ID.

The MAC ID may have

been deleted while updat-

ing.

No bootloader present!

There is no bootloader.

Bootloader code corrup-

The bootloader checksum is inva-

The bootloader has been

ted!

lid.

damaged due to an unsuc-

cessful update or a defec-

tive flash module.

Pressed keys detected!

One or several keys are pressed.

The hardware is defective if

no keys have been pressed.

Display error!

Reading back the display status

The hardware is defective.

was unsuccessful.

1.4.2

Interface signals

PLC module

The FC13 "HHUDisp" supports the handling of the LC display. For a detailed description,

please refer to:

Literature: Function Manual, Basic Functions, Basic PLC Program (P3).

Note

The customer is responsible for programming the transfer of key signals to the interface in a

PLC user program.

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Handheld Terminal HT 2

1.4 Commissioning

User interface

Layout of keys and LEDs

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Image 1-23 Operator keys, standard assignment

The first row of keys (free keys T1 ... T4) is not assigned as standard.

Input image HT 2

You can tap the signals for the keys, feed rate override switch, key-operated switch and

acknowledgement of the digital display at the input area. The address range is set by parameter

assignment with STEP7 tools.

Byte

Input signals to PLC

no.

Byte

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Reserved

m + 0

Reserved

m + 1

Feed

Free

AUTO-

Spindle

Feed

Free

m + 2

start

T2 key

MATIC

NC stop

stop

T1 key

JOG

Free

Spindle

m + 3

T3 key

Handwheel

Axis

NC Start

start

Direction

Rapid tra-

Direction

Free

m + 4

key -

verse

key +

T4 key

override

Acknowl-

Rapid traverse / feed rate override switch

m + 5

edgement

Keyswitch

digital

display

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Handheld Terminal HT 2

1.4 Commissioning

Rotary switch positions HT 2

Position

EDCBA

00001

00011

00010

00110

00111

00101

00100

01100

01101

01111

01110

01010

01011

01001

01000

11000

11001

11011

100

11010

Output image HT 2

The signals for controlling the LEDs, HHU mode, display signals and digital display are present

at the output area.

Byte

Output signals to the HHU

no.

Byte

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

always

Free T4

Free

m + 0

key

T3 key

T2 key

T1 key

New data for se-

Selection

m + 1

lected line

lines 3, 4

lines 1, 2

Feed

Rapid tra-

AUTO-

NC stop

Spindle

Feed

Direction

JOG

m + 2

start

verse

MATIC

stop

key +

override

Direction

Handwheel

NC Start

Spindle

m + 3

key -

Axis

start

Note

Output byte AB m + 0, bit 7 must always have the value '1'!

This sets the display's output mode.

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Handheld Terminal HT 2

1.4 Commissioning

Output image of the digital display

Control of the digital display in the HT 2

Byte

Output signals to the HHU

no.

Byte

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default setting of 1st character (right) of selected line

m + 4

Default setting of 2nd character of selected line

m + 5

Default setting of 3rd character of selected line

m + 6

Default setting of 4th character of selected line

m + 7

Default setting of 5th character of selected line

m + 8

Default setting of 6th character of selected line

m + 9

Default setting of 7th character of selected line

m + 10

Default setting of 8th character of selected line

m + 11

Default setting of 9th character of selected line

m + 12

Default setting of 10th character of selected line

m + 13

Default setting of 11th character of selected line

m + 14

Default setting of 12th character of selected line

m + 15

Default setting of 13th character of selected line

m + 16

Default setting of 14th character of selected line

m + 17

Default setting of 15th character of selected line

m + 18

Default setting of 16th character (left) of selected line

m + 19

Display

The digital display is used as a 4-line alphanumeric display with 16 digits per line.

The display data is coded according to the character set given in the ASCII code table for the

digital display via the ABm + 4...19 bytes. The decimal point is a separate character. The

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Handheld Terminal HT 2

1.4 Commissioning

display always starts line by line right-justified with the byte ABm + 4 and is built up towards

the left up to ABm + 19.

Selecting the line

ABm + 1, bit 0 and bit 1

This bit is used to select the line to be written.

Table 1-6

Line selection

Bit 0

Bit 1

Selected line

1. 1st line

2. 2nd line

3. 3rd line

4. 4th line

New data for selected line

ABm + 1, bit 7

This bit is used to request writing in of new data into a line. The bit is set by the user program

and can be reset on detection of the acknowledgement bit EBm + 5, bit 7.

Bit 7 = 0: Reset request.

Bit 7 = 1: Set request

Acknowledgement of the digital display

EBm + 5, bit 7

This bit is set by the system after the new data has been accepted.

Bit 7 = 0: No new data

Bit 7 = 1: New data has been accepted

Example of a signal chart

Example of a signal chart when writing data for two lines 1 and 2

1. Select the line with ABm + 1, bit 0 and bit 1.

2. Write new data with ABm + 4...19.

3. Set request: New data for selected line ABm + 1, bit 7

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Handheld Terminal HT 2

1.4 Commissioning

4. Acknowledgement digital display EBm + 5, bit 7, via system.

5. Reset request

Note

The request must be reset before a new line is written!

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Image 1-24 HT2 signal characteristic example for writing data into the HT 2 display

Proceed in the same way for the selection of line 3 and line 4

ASCII code for digital display

Representation of characters by specifying the corresponding number system (hexadecimal/

decimal) in the bytes ABm + 4...19. The characters from Hex 20 to Hex 7F are default values.

Table 1-7

Standard character set

ASCII

Char-

ASCII

Char-

ASCII

Char-

ASCII

Char-

ASCII

Char-

ASCII

Char-

acter

Hex/dec

20 / 32

30 / 48

40 / 64

50 / 80

60 / 96

70 / 112

21 / 33

31 / 49

41 / 65

51 / 81

61 / 97

71 / 113

22 / 34

32 / 50

42 / 66

52 / 82

62 / 98

72 / 114

23 / 35

33 / 51

43 / 67

53 / 83

63 / 99

73 / 115

24 / 36

34 / 52

44 / 68

54 / 84

64 / 100

74 / 116

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Handheld Terminal HT 2

1.4 Commissioning

ASCII

Char-

ASCII

Char-

ASCII

Char-

ASCII

Char-

ASCII

Char-

ASCII

Char-

acter

Hex/dec

25 / 37

35 / 53

45 / 69

55 / 85

65 / 101

75 / 117

26 / 38

36 / 54

46 / 70

56 / 86

66 / 102

76 / 118

27 / 39

37 / 55

47 / 71

57 / 87

67 / 103

77 / 119

28 / 40

(

38 / 56

48 / 72

58 / 88

68 / 104

78 / 120

29 / 41

)

39 / 57

49 / 73

59 / 89

69 / 105

79 / 121

2A / 42

3A / 58

4A / 74

5A / 90

6A / 106

7A / 122

2B / 43

3B / 59

;

4B / 75

5B / 91

[

6B / 107

7B / 123

{

2C / 44

3C / 60

4C / 76

5C / 92

6C / 108

7C / 124

2D / 45

3D / 61

4D / 77

5D / 93

]

6D / 109

7D / 125

}

2E / 46

3E / 62

4E / 78

5E / 94

6E / 110

7E / 126

2F / 47

3F / 63

4F / 79

5F / 95

6F / 111

7F / 127

Space

Not defined

Table 1-8

Extended character set

ASCII

Char-

ASCII

Char-

ASCII

Char-

ASCII

Char-

ASCII

Char-

ASCII

Char-

acter

Hex/dec

A0 / 160

B0 / 176

C0 / 192

D0 / 208

E0 / 224

F0 / 240

A1 / 161

B1 / 177

C1 / 193

D1 / 209

E1 / 225

F1 / 241

A2 / 162

B2 / 178

C2 / 194

D2 / 210

E2 / 226

F2 / 242

A3 / 163

B3 / 179

C3 / 195

D3 / 211

E3 / 227

F3 / 243

A4 / 164

B4 / 180

C4 / 196

D4 / 212

E4 / 228

F4 / 244

A5 / 165

B5 / 181

C5 / 197

D5 / 213

E5 / 229

F5 / 245

A6 / 166

B6 / 182

C6 / 198

D6 / 214

E6 / 230

F6 / 246

A7 / 167

B7 / 183

C7 / 199

D7 / 215

E7 / 231

F7 / 247

A8 / 168

B8 / 184

C8 / 200

D8 / 216

E8 / 232

F8 / 248

A9 / 169

B9 / 185

C9 / 201

D9 / 217

E9 / 233

F9 / 249

AA / 170

BA / 186

CA / 202

DA / 218

EA / 234

FA / 250

AB / 171

BB / 187

CB / 203

DB / 219

EB / 235

FB / 251

AC / 172

BC / 188

CC / 204

DC / 220

EC / 236

FC / 252

AD / 173

BD / 189

CD / 205

DD / 221

ED / 237

FD / 253

AE / 174

BE / 190

CE / 206

DE / 222

EE / 238

FE / 254

AF / 175

BF / 191

CF / 207

DF / 223

EF / 239

FF / 255

Protected space

Conditional separator

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Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 2

1.4 Commissioning

1.4.3

Application example for HT8 and HT 2 involving mixed operation

Prerequisite

The following example relates to an 840D sl plus TCU with MCP xxx PN and an optional HT 8

or HT 2 connected to a PN box. All the components are connected to X120 of the NCU. The

application example is equally valid for an MPP xxx IE H (with connection for HT 2/HT 8) instead

of a connection module /erminal box.

The TCU and HT 8 function as "thin client units" and as soon as they assume the operating

focus, they use their MCP address (db19.dbb123) and index (db19.dbb118) to register with

the PLC.

This setting is specified for both devices during the initial connection and is stored on the NCU's

CompactFlash card (config.ini).

By contrast, the HT 2 does not function as a "thin client unit". Consequently, it does not inform

the PLC whether it is connected; it is addressed in the PLC via the DIP switch position of the

connection point (PN box/module or MPP xxx IEH).

7&8

0DFKLQH FRQWURO SDQHO

(LWKHU

&RQQHFWLRQ PRGXOH 31 RU

DOWHUQDWLYHO\ D WHUPLQDO ER[ 31

1&8

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 2

1.4 Commissioning

Configuration involving HT 8

The following is assumed:

TCU: MCP address = 192, index = 7

HT 8: MCP address = 10, index = 10

PN box DIP switch position = 10

Depending on whether we are dealing with the TCU or HT 8, either the MCP xxx PN or the

integrated HT8_MCP should now be activated.

To do this, perform the following on the PLC:

Depending on whether it is the TCU or the HT 8 that has the operating focus (db19.dbb123),

the relevant MCP bus address must be modified in DB7 ("gp_par"):

● Deactivate MCP via

"gp_par".MCP1Stop = 1

● Define MCP address via

"gp_par".MCP1BusAdr = db19.dbb123

● Activate MCP via

"gp_par".MCP1Stop = 0

Configuration involving HT 2

To activate the HT 2, proceed as follows:

● Check whether the TCU has the operating focus (HT 8 disconnected/db19.dbb123==192).

● Activate the HT 2, e.g. via button using "gp_par".BHGStop = 0.

Relevant entries in OB100:

CALL FB 1, DB 7

MCPNum :=

MCP1In :=

P#E 0.0

MCP1Out :=

P#A 0.0

MCP1StatSend :=

P#A 8.0

MCP1StatRec :=

P#A 12.0

MCP1BusAdr :=

//<<-- MCP_addr. for HT 8

corresp. TCU settings / or

for MCP 483 xxx PN

MCPBusType :=

B#16#55

//55=Ethernet

BHG :=

//5=Ethernet = HT 2

BHGIn :=

P#M 300.0

BHGOut :=

P#M 320.0

BHGRecGDNo :=

//= DIP switch position on

PN box (or MPP xxx IE) to

which HT 2 is connected

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 2

1.4 Commissioning

1.4.4

Application example for two HT 2 units connected to SINUMERIK

Prerequisite

The following example relates to the operation of two HT 2 units on one network. The aim is

to switch over from one HT 2 to the other. The following is assumed:

● There are two PN boxes on the network (with DIP switch positions 10 and 11).

● There is an HT 2 unit connected to each of these, but only one of them is activated.

The application example is equally valid for an MPP xxx IE H (with connection for HT 2) instead

of a connection module / terminal box.

Activating an HT 2

The HT 2 that is being activated is addressed by specifying the DIP switch position in

"gp_par".BHGRecGDNo.

Switchover during operation:

● Deactivate HHU via

"gp_par".BHGStop = 1

● Modify the PN box assignment via

"gp_par".BHGRecGDNo = 10 or 11

● Activate HHU via

"gp_par".BHGStop = 0

If there is only one HT 2, it is sufficient to specify these parameters by means of FB1 parameter

assignment in OB100 (DIP switch position 10):

CALL FB 1, DB 7

MCPNum :=

MCP1In :=

P#E 0.0

MCP1Out :=

P#A 0.0

MCP1StatSend :=

P#A 8.0

MCP1StatRec :=

P#A 12.0

MCP1BusAdr :=

//<<-- MCP_addr. for HT 8

corresp. TCU settings / or

for MCP 483 xxx PN

MCPBusType :=

B#16#55

//55=Ethernet

BHG :=

//5=Ethernet = HT 2

BHGIn :=

P#M 300.0

BHGOut :=

P#M 320.0

BHGRecGDNo :=

//= DIP switch position on

PN box (or MPP xxx IE) to

which HT 2 is connected

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 2

1.6 Maintenance and Service

1.5

Dimension drawing

(1)

Standard position mounting bracket (optional: Retaining magnet)

(2)

Standard position retaining magnet (optional: mounting bracket)

(3)

Position for the type plate

Image 1-25 HT 2 - dimension drawing

1.6

Maintenance and Service

Cleaning the device

Use a soft cloth moistened either with water or a mild cleaning agent to clean the housing,

display and operator control elements of the HT 2.

Checking the device

In order to prevent foreign bodies or liquids entering the HT 2, regularly check the device

● that all the housing screws are in place and tight

● for damage to the housing

● for damage to the cable cover or cable entry

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 2

1.7 Technical data

Protect the device from environmental effects

Protect the HT 2 against

● direct solar radiation and heat sources

● mechanical vibration and shock

● dust

● moisture, and

● strong magnetic fields

Checking the emergency stop button and the enabling button

Check the emergency stop button regularly to ensure that it functions correctly.

Check the enabling button regularly to ensure that it functions correctly in the enable and panic

position.

WARNING

Danger of death caused by damaged HT 2

Immediately check the functioning of the emergency stop button and the enabling button if

the device was subject to significant shock (e.g. because it was dropped).

1.7

Technical data

1.7.1

Handheld Terminal HT 2

Safety

Safety class

III according to EN 61131-2 / EN 50178

Degree of protection according to

IP65

EN 60529

Approvals

CE / cULus

Electrical data

Input voltage

24 V DC

Current carrying capacity

Enabling button:

0 - 500 mA / 2-channel, 3-stage

Emergency Stop button:

1 - 1000 mA / 2-channel

Power consumption, max.

Approx. 2.5 W

Mechanical data

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Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 2

1.7 Technical data

Dimensions

Height (without operator

Depth:

control elements):

dth

255 m

76.2 mm

Weight

0.69 kg

Fall height, max.

1.20 m

Display

Resolution

128 x 64 pixels

Climatic ambient conditions

Condensation and ice formation

Not permissible

Dripping water, spray, splash water,

Permissible

jet-water

Operation

Storage and transport

Applicable standards

EN 60721-3-3

EN 60721-3-1 / -3-2

Perm. ambient temperature

0 ... 50° C

-25 ... 60° C

Limit values for relative humidity at

5 ... 65%

5 ... 95%

25° C

Emergency Stop button

Rated voltage

24 V DC

Current rating, max.

1 A

Current rating, min.

1 mA

Switching capacity

DC 13 according to EN 60947-5-1

Conditional rated short-circuit current

1000 A, 6A gL/gG according to EN

60947-5-1

B_10d (if no PN terminal box used)

100 000

When the PN Plus connection box is used:

PFH_d

1.01 * 10^-7

Service life

20 years

Forced dormant error detection interval (mechanical actua-

1 year

tion to the test the emergency stop)

Category

Performance Level

PL d

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Handheld Terminal HT 2

1.7 Technical data

Note

The PFH_d value only applies when the technical properties of the enabling button and the

quantitative conditions specified here (e.g. service life) are observed.

The permissible number of switching cycles must also be observed in the application.

Handwheel

The handwheel of HT 2 is operated in the system as 3rd handwheel.

General machine data:

MD 11350 $MN_HANDWHEEL_SEGMENT[0] = 7

MD 11351 $MN_HANDWHEEL_MODULE[0] = 1

MD 11352 $MN_HANDWHEEL_INPUT[0] = 5

1.7.2

Connection module Basic PN

Safety

Safety class

III according to IEC 60536

Degree of protection accord-

IP54

ing to EN 60529

Approvals

CE / cULus

Electrical data

Input voltage

24 VDC (via X3 connector)

Current carrying capacity

Enabling button contacts (X20 connector)

max. each 0.5 A / 2-chan-

nel

Emergency stop button contacts (X21 con-

max. each 0.5 A / 2-chan-

nector)

nel

Max. power consumption

Connection module without external loading

0.3 A

Panel (HT 2)

0.12 A

5 status signals (X7 and X21)

2.5 A (0.5 A each)

Total:

2.92 A

Max. total

Approx. 70 W

power consumption

Mechanical data

Dimensions

Height (without holder for termi-

Width:

Length:

nating connector):

165 mm

166 mm

66 mm

Weight

0.75 kg

Fall height, max.

1.20 m

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 2

1.7 Technical data

Note

Information about the climatic and mechanical environmental conditions is contained in the

associated section under:

"General notes and interconnection" → "Operational planning".

1.7.3

PN terminal box

General data

Weight without packaging

Approx. 700 g

Degree of protection according to EN 60529

IP65 (with connected HT 2 or with inserted blanking cover)

Electrical data

Rated voltage

+24 V DC

Range, permissible

20.4 to 28.8 V (-15%, +20%)

Transients, maximum permissible

35 V (500 ms)

Time between two transients, minimum

50 s

Current consumption of PN terminal box without HT 2

● Typical

● Approx. 100 mA

● Continuous current, maximum

● Approx. 150 mA

● Inrush current I²t

● Approx. 0.5 A²s

Current consumption of PN with HT 2, typical

Approx. 100 mA

Fuse, internal

Electronic

Current load PLC-accompanying signals

Max. 100 mA

Note

Recovery time

Wait for approximately one second after withdrawing the connecting cable from the connection

box before reinserting.

After power failures lasting less than one second the connecting cable has to be disconnected.

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 2

1.9 Accessories

1.8

Spare parts

The following service set is available for SIMATIC connecting boxes PN Basic and PN Plus:

Designation

Remark

Quantity

Article number

Service set for mobile pan-

Dummy plugs for cable compartment

6AV6574-1AA04-4AA0

els

PG screw glands for connection box

Blanking cover for connecting a handheld ter-

minal

Terminal strips for connection box

1.9

Accessories

1.9.1

Overview

The following accessories are available for the HT 2:

Designation

Remark

Quantity

Article number

PN Basic terminal box

Without automatic emergency stop override for

6AV6671-5AE01-0AX0 *)

mounting in the system

PN Plus terminal box

With automatic emergency stop override for

6AV6671-5AE11-0AX0 *)

mounting in the system

PN Basic connection module

Without automatic emergency stop override for

6FC5303-0AA01-1AA0 *)

mounting in the control cabinet

Connecting cable

Length: 2 m

6XV1440-4BH20 *)

Length: 5 m

6XV1440-4BH50 *)

Length: 8 m

6XV1440-4BH80 *)

Length: 10 m

6XV1440-4BN10 *)

Length: 15 m

6XV1440-4BN15 *)

Length: 20 m

6XV1440-4BN20 *)

Length: 25 m

6XV1440-4BN25 *)

Spiral connecting cable

Length: 1.5 m, can be expanded to 3.5 m

6FC5348-0AA08-3AA0 *)

Set of keys

Set of 5

1 set

6AV6574-1AG04-4AA0

Retaining magnet for HT 2

6FC5348-0AA08-0AA0

Holder for HT 2

For safekeeping, also suitable for stationary op-

6FC5348-0AA08-1AA0

eration

Slide-in labels

Can be labeled (3 films, DIN A4)

1 set

6FC5348-0AA08-2AA0

*) Safety related accessories

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 2

1.9 Accessories

1.9.2

Mount

Note

There is no counterpiece to the holder on the HT 2 in the scope of delivery and must be provided

by the customer depending on the circumstances.

The HT 2 can be retained using the mounting rack.

Image 1-26 HT 2 mounting bracket

The mounting bracket is mounted the same way as the retaining magnets. A description about

this can be found in Section: "Retaining magnet".

Note

Please ensure that the HT can be ergonomically mounted. Therefore, choose a suitable

mounting height.

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 2

1.9 Accessories

Mounting the retaining magnets

Note

A second magnet can be mounted at position (2) to increase the holding forces.

Open the cable duct cover by unscrewing the six

PT screws approximately 1 cm.

To do this, use a crosstip size 2 screw driver.

(1)

Standard position retaining magnet (optional: Mounting bracket)

(2)

Standard position mounting bracket (optional: Retaining magnet)

A second retaining magnet can be used when required.

(3)

PT screws (4 x 20 mm)

(4)

Cable duct cover

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 2

1.9 Accessories

Locate the retaining magnets under the cable

duct cover and retain them from the rear using

the screw.

To do this, use a slotted size 4 screwdriver.

Re-attach the cable duct cover of the HT 2.

Ensure that the tightening torque does not ex-

ceed max. 0.4 - 0.5 Nm.

(1)

Retaining magnet with retaining screw

(2)

Retaining magnet mounted

Working with retaining magnets

CAUTION

Danger of injury from flying sparks

Do not install the magnets in hazardous locations as they can cause arcing and sparking.

WARNING

Danger of death due to strong magnetic fields

Even at a considerable distance apart, magnets can be attracted to one another, repel one

another or splitter when they collide. This involves strong forces.

This is the reason that you should avoid that magnets collide and work with the appropriate

protection in order to prevent skin crushing and other injuries.

Strong magnetic fields can destroy electronic or mechanical elements and devices.

This also applies to heart pacemakers.

Therefore observe the necessary safety clearances. Information on this is provided in the

documentation of the corresponding devices.

Carefully observe the appropriate packing regulations when shipping by air.

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Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 2

1.9 Accessories

1.9.4

Slide-in label

1.9.4.1

Labeling the slide-in labels

In the factory, the Handheld Terminal HT 2 is supplied with five horizontal slide-in labels.

With the exception of the slide-in label for the first row of keys, standard symbols for the

machine control are printed on the slide-in labels.

Image 1-29 HT2 slide-in labels

When requested, an accessory package with three blank slide-in labels can be ordered, so

that these strips can be printed with the key symbols according to your specifications (see

Section: "Accessories" → "Overview").

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Handheld Terminal HT 2

1.9 Accessories

Image 1-31 Template_HT2_13.doc (blank template for the film)

The "Symbols_OP08T_13.doc" file contains a broad range of key symbols.

An overview of these can be found via "Operator panels" > "OP 08T operator panel front" >

"Accessories" > "Labeling the slide-in labels".

Preparing slide-in labels

1. Open the files "Template_HT2_13.doc" and "Symbols_OP08T_13.doc" in MS Word.

2. Select a key symbol from the file "Symbols_OP08T_13.doc" by left-clicking.

3. Copy the desired symbol to the clipboard via "Edit" → "Copy" or "Ctrl + C"

4. Return to the template file "Template_HT2_13.doc"

5. Position the cursor before the insertion point in the desired table cell.

6. Insert the key symbol via "Edit" → "Paste" or "Ctrl + V".

7. To format the graphics, double click on the inserted symbol with the lefthand mouse key.

- Select the "size" tab and set the symbol height to 1.1 cm.

- Click on <OK> to accept the change.

8. Repeat steps 2. to 7. until you have inserted all the key symbols.

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 2

1.9 Accessories

Printing the slide-in labels

1. Place the blank film in the printing direction in the slot of your laser printer (see Fig.: "Blank

film HT 2").

2. Select "film" as the printable medium if your printer allows this setting.

3. Start the printing process using MS Word.

Note

For labeling the slide-in labels, HP Color Laser Jet film C2936A is used.

Make a test print on paper before you print on the film.

Allow the film to cool after printing so that the ink can dry.

4. Cut the slide-in labels out of the film along the edges (see Fig.: "Template_HT2_13.doc").

5. Round off the corners of the slide-in labels approx. 3 mm to facilitate insertion.

Dimension drawings

Image 1-32 Dimensions for slide-in labels

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 2

1.9 Accessories

Creating your own symbols

● Drawing in a vector program (e.g. Designer, Freehand, CorelDraw):

- Draw a 13 x 13 mm square, fill with the color white and give it an invisible border line.

- Place the symbol in the center of this square.

- Group the square and symbol together and add this group in the MS Word document

Template_HT2_13.doc.

● Drawing in an image editing program (e.g. Photoshop, Picture Publisher, Paint)

- Draw a square 13x13 mm (37x37 pixel), filled with the color white.

- Draw the symbol in the center of this square.

- Copy the symbol and the square together and add the group in the MS Word document

Template_HT2_13.doc.

1.9.4.2

Replacing the slide-in labels

The slots to insert the slide-in labels are located under a cover on the lefthand side of the HT 2

that is integrated into the device design.

Image 1-33 Cover of the slide-in labels (1)

The retaining screws of the cover are accessible from the rear of the HT 2.

Remove the three Phillips

screws (5x14) using a screw-

driver, size PH1.

Remove the cover.

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 8

2.1

Description

The HT 8 mobile handheld terminal combines the functions of an operator panel and a machine

control panel in one device, permitting complete operator control and monitoring of machines.

It can be used according to the principle of a thin client (also see "Operator panels", Chapter:

"Thin client unit") as a supplementary main operator panel or as a secondary control panel.

The optional touch pen with a holding loop permits easy operation of the touch screen, even

when operators are wearing gloves. Its safety concept permits working in the hazardous area

of the machine, which is necessary, for example, when teaching in.

Note

Siemens declares that this device complies with the requirements and other regulations of the

directives 2006/42/EC (machinery directive) and 2004/108/EC (EMC guideline).

The full declaration can be found on the Internet (https://support.industry.siemens.com/cs/

document/109476859?dti=0&lc=en-WW).

Features

● Operator control via touch screen and membrane keys

● Fully graphic 7.5" TFT color display

● Emergency Stop button and two enabling buttons for left-handed and right-handed

operators

● Easy hot swapping during operation (hot plug and play), without triggering the emergency

stop in combination with the PN Plus connection box and without an additional, manual

actuating element / keyswitch

The HT 8 can be safely kept and operated in a stationary manner in the wall holder (accessory).

Validity

The following description applies to the following components:

Designation

Features

Article number

HT 8

Enabling button, emergency stop button, override

6FC5403-0AA20-0AA1

rotary switch

HT 8

Enabling button, emergency stop button, override

6FC5403-0AA20-1AA1

rotary switch, handwheel

The safety-related accessories are marked in the "Accessories" section with a *).

Handheld units

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Handheld Terminal HT 8

2.1 Description

Function blocks

In the unit:

● PCB with CPU, memory

● Ethernet controller

Device front:

● LC display as touch screen

640 x 480 (VGA) Color TFT

– Inverter on board

●

52-key membrane keyboard

24 machine control keys

28 control keys (number pad, cursor pad, function keys)

● Emergency Stop button, 2-channel

● Rotary override switch (19 positions)

● Handwheel (optional)

Device rear:

●

2 enabling buttons (2-channel, 3-stage)

● Serial interfaces:

- HT 8 connection cable to terminal box / connection module

- USB interface (with dummy plugs)

● Power supply (+24 V)

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 8

2.2 Operator controls and indicators

Holes

The HT 8 consists of a double-walled housing with upper shell ① and lower shell ③

On the lower shell, the HT 8 has three small holes ②. These drill-holes are attached for the

purpose of diverting the liquid that can penetrate into the space between the double-walled

housing if the malleable protective shroud on the upper shell is pushed through.

2.2.2

Description

Display / touch screen

The display has LED backg4round lighting.

All the application-specific functions are displayed on the touch-sensitive display. The

particular function is initiated by your finger or an optional touch pen at the appropriate location

in the display.

NOTICE

Damage to the display by pointed or hard objects

Do not touch the operating elements of the display with pointed or hard objects, as this can

damage it, sometimes beyond repair.

In order to achieve precise assignment by pixels, the touch-sensor must be calibrated and

adjusted to the touch screen.

Handheld units

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Handheld Terminal HT 8

2.2 Operator controls and indicators

Information for calibrating the touch screen of the HT 8 can be found in:

"General information and networking", Chapter: "Networking"

Note

Calibration of the touch sensor may also become necessary during operation, because the

resistance values of the touch membrane change when there is a temperature change.

Membrane keyboard

On the front of the HT8, 52 keys are arranged in several key blocks (see Image 2-1 User

interface of the HT 8 with handwheel (Page 75)).

NOTICE

Damage to the keys when using pointed or hard objects

Only use your fingers to touch the membrane keyboard and not sharp or hard objects, which

can damage or even destroy the keys. Further, please note that the touch pen is also not

suitable for using the membrane keyboard.

Function keys machine control panel

● Left: START, STOP, RESET, AUTO, JOG, TEACH, ALARM CANCEL

● Bottom: U (User button)

● Right: 2 x 6 traversing keys, 4 user keys (can be freely assigned)

HMI control keys

● The number pad contains the numbers 1-9, the decimal point and the minus sign

● The cursor pad is used to navigate on the screen.

● Seven keys for

- Input

- Menu change

- Switch-over of the softkey bars

- Help function

Emergency Stop button

The red mushroom-shaped head of the Emergency Stop button is provided with a yellow ring.

Directly under the mushroom-shaped head, there is also a black ring which identifies the

position status of the Emergency Stop button.

State

Ring (black)

Visible

Not visible

Emergency Stop button

Not pressed

Pressed

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 8

2.2 Operator controls and indicators

If an emergency stop is triggered, the button locks into place.

If the button is locked into place, it can be unlocked by rotating it to the right.

Emergency Stop button

Press the red button in emergencies when

∎

people are at risk,

∎

there is the danger of machines or the workpiece being

damaged.

As a rule, when operating the Emergency Stop button, all

drives are brought to a standstill with max. braking torque.

Machine manufacturer

For other responses to the Emergency Stop:

Refer to the machine tool manufacturer's instructions!

The signals are sent via the connecting cable to the terminal box or the connection module

and are available for further wiring.

Rotary override switch

The rotary override switch of the HT 8 has 19 positions.

The evaluation scale (0 to max.) is specified by the machine's manufacture in the form of

machine data.

Enabling button

The HT 8 has two enabling buttons that are logically grouped.

This allows the enabling function to be triggered by either the left or the right hand during

normal operation.

The enabling buttons are configured as 2-channel, 3-position switches for the following button

positions:

● Released (no activation)

● Enabling (center position) - enabling for channel 1 and 2 is on the same switch.

● Panic (completely pushed through)

Note

Monitoring the enabling function

● The enabling duration is monitored to avoid that the enabling button is permanently

bypassed. The enabling outputs are opened after max. 30 min permanent enabling. The

enabling outputs are only closed again after first releasing the enabling button and then

actuating it again. The enabling time of 30 min can be extended by switching to the second

enabling button before the 30 min expires.

● The system checks the synchronism of the two enabling button circuits of the mechanical

enabling button. The two enabling button circuits (of the button) must be closed within 2

seconds. As a consequence, it is not possible to actuate just one enabling circuit and

therefore provoke a fault.

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 8

2.2 Operator controls and indicators

The signals are sent via the connecting cable to the terminal box or the connection module

and are available for further wiring.

Connection examples of the enabling and emergency stop button can be found in Chapter:

"HT 2", Section: "Connections" → "Connection examples of enabling button and emergency

stop button"

Handwheel

The HT 8 is available with a handwheel.

The handwheel operates with 50 pulses/revolution.

HT 8 operated with the handwheel

An HT 8 with a handwheel behaves in the same way as an MCP 483C PN (in Ethernet mode)

with a handwheel. The handwheel pulses are transferred via Ethernet to the NCK using the

HT 8 MCP process image.

NOTICE

Lack of care for traversing can cause damage to the tool/workpiece

The increments per revolution for a handwheel on a mobile HT 8 amount to 50 increments/

revolution; for a stationary unit, it is 100 increments/revolution. A different length of the

traverse path results from this difference.

2.2.3

Screen brightness control

If a screen with high contrast is displayed unchanged for longer than 1 hour, the screen

brightness control must be activated (screen switched dark) in order to protect the TFT display

against a phenomenon known as "burn-in" of the last displayed screen.

For more information see:

● IM9 Commissioning Manual SINUMERIK Operate

● IM4 HMI-Advanced Commissioning Manual

NOTICE

You may do irreversible damage to your TFT display if the screen brightness control is

not activated.

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 8

2.3 interfaces

2.3

interfaces

2.3.1

Overview

The following diagram shows the connection options at the HT 8.

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Image 2-4

Block diagram of HT 8 interfaces

2.3.2

Description

Signal type

Bi-directional signal

Signal output

Supply voltage

Signal input

Voltage input

Voltage output

Contact

X3: Ethernet connection

The Ethernet interface is compatible to the 10/100/1000BASE-T IEEE 802.3 standard, without

crossover function.

Connector designa-

tion:

Connector type:

8-pole RJ45-socket with interlock (above)

Pin assignment

The pin assignment corresponds to the standard, see "General infor-

mation and networking" → "Connecting".

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 8

2.3 interfaces

X5: USB interface

The USB interface corresponds to the USB 1.1 specification with full speed data rate.

Connector designa-

tion:

Connector type:

Type A socket

Pin assignment

The pin assignment corresponds to the standard, see "General infor-

mation and networking" → "Connecting".

NOTICE

Damage to the plug by missing protective cap

Replace the USB connector if its protective cap is torn, because in this case, the connector

is no longer protected from dirt.

NOTICE

Damage to the inserted USB FlashDrive should the HT 8 fall

A plugged-in USB FlashDrive can be damaged or broken off if the device falls.

X51: Connection of the safety signals, power supply

① Recess

Connector designa-

X 51

tion:

Connector type:

12-pole connector plug with coding and locking

Signal

Signal type

Meaning

IDENT_P

Box ID transfer +

ENABLE 2+

Enabling button channel 2, digital

ENABLE 1+

Enabling button channel 1, digital

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 8

2.4 Connecting

Signal

Signal type

Meaning

STOP -13

Emerg. Stop circuit 2

STOP -23

Emerg. Stop circuit 1

P24

+24 V power supply

Signal

Signal type

Meaning

IDENT_N

Box ID transfer -

ENABLE 2-

Enabling button channel 2, digital

ENABLE 1-

Enabling button channel 1, digital

STOP -14

Emerg. Stop circuit 2

STOP -24

Emerg. Stop circuit 1

M24

External ground

2.4

Connecting

2.4.1

Overview

Article no.

Emergency stop / enabling circuit

SINUMERIK

Prefabricated cable

Handheld

Terminal

Connection box

PN Basic /

HT 8

SINUMERIK

PN Plus

PCU 50.5

6XV1440-4B...

Ethernet cable

6FC5348-0AA08-3AA0

SINUMERIK

Connection

NCU 7x0.3 PN

module

Basic PN

Emergency stop / enabling circuit

SINUMERIK

MPP 310 IEH/

MPP 483 IEH/

MPP 483 HTC

Emergency stop / enabling circuit

USB

interface

Image 2-5

Connection overview HT 8

The HT 8 is designed for communication in an Ethernet network. The following connection

options are available:

● PN Basic terminal box/PN Plus terminal box

● PN Basic connection module (for control cabinet installation) or

● MPP 310 IEH / MPP 483 IEH / MPP 483 HTC

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 8

2.4 Connecting

HT 8 with

PN Basic/PN Plus terminal box

PN Basic connection module

MPP 483 HTC

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Connection via the PN Plus terminal box allows quick connection and disconnection during

machine operation without an emergency stop being triggered.

If no HT 8 is connected, observe the following:

WARNING

Danger of death resulting from improper access

● After disconnection, the HT 8 must be locked away.

● Emergency Stop buttons that are inactive must not be identified as such or must be

inaccessible. This is to prevent the emergency stop button from being used inadvertently.

Note

An example of TCU and MCP xxx PN as well as optionally an HT 8 or HT 2 on a PN box / PN

module can be found in Chapter: "HT 2", Section: "Commissioning" → "Application example of

HT8 and HT 2 in mixed operation".

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 8

2.4 Connecting

2.4.2

Terminal Box PN

2.4.2.1

Description

① LED displays for the communication

② Screwed joint for power supply cable and shield

③ Screwed joint for cable with safety signals and enabling button signals and for PLC accompa-

nying signals

④ Connecting socket for the connector plug of the connecting cable (covered with blanking cover)

⑤ Screwed joint for process data cables (Ethernet)

Image 2-6

View of the PN terminal box

Note

Degree of protection IP65 at the terminal box is ensured with plugged-in HT 8 or plugged-in

dummy cap.

The PN terminal box is available in two versions.

● PN Basic terminal box

The PN Basic terminal box can be used if no hot-plug capability is required. The Emergency

Stop circuit can be overridden here by external mechanisms.

● PN Plus terminal box

The PN Plus terminal box features hot-plug capability. This means that it is possible to

connect and disconnect during operation without any disruption.

The emergency stop circuit is automatically maintained during the switching of connectors.

Note

The exterior of the PN terminal box versions only differs in terms of what is printed on the side.

The terminal boxes feature two rotary coding switches (S1 and S2) so that a unique ID can be

set for the purpose of station identification. See Chapter interfaces (Page 89).

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 8

2.4 Connecting

Clearance

The following clearances are required around the PN terminal box:

Additional references

You can find a detailed description in the operating instructions (compact) of the Mobile Panel

177 HMI device (WinCC flexible):

http://support.automation.siemens.com/WW/view/de/22166637

2.4.2.2

PN Plus terminal box

The PN Plus terminal box differs from a PN Basic terminal box in that it has four relays mounted

on the board.

① Board

② Relays

Image 2-7

Inner view of the PN Plus terminal box

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 8

2.4 Connecting

Switching states of the emergency stop circuit

HT 8

Emergency

Switching status, emergency stop circuit

Stop button

Connected

Not pressed

Emergency Stop circuit in the terminal box remains closed.

Connected

Pressed

The emergency stop circuit in the terminal box is open.

The system to be monitored is stopped.

Not connected

Emergency Stop circuit in the terminal box remains closed.

WARNING

Danger of death resulting from the inadvertent disconnection of the HT 8

If you disconnect the HT 8 from the PN Plus terminal box, the emergency stop circuit is closed,

thereby clearing the stop state of the system to be monitored. This occurs irrespective of

whether the emergency stop button has been pressed on the HT 8.

2.4.2.3

PN Basic terminal box

In contrast to the PN Plus terminal box, the "Stop loop through" function is not implemented

on the PN Basic terminal box. Relays are so not required.

Image 2-8

PN Basic terminal box

Note

The emergency stop circuit is controlled via the emergency stop button when the HT 8 is

connected. If the connecting cable of the HT 8 is disconnected from the PN Basic terminal

box, the emergency stop circuit is interrupted. This leads to a safe machine stop or an

Emergency Stop of the system to be monitored.

Handheld units

Manual, 03/2016, 6FC5397-1AP40-5BA3

Handheld Terminal HT 8

2.4 Connecting

Switching states of the emergency stop circuit

HT 8

Emergency

Switching status, emergency stop circuit

Stop button

Connected

Not pressed

Emergency Stop circuit in the terminal box remains closed.

Connected

Pressed

The emergency stop circuit in the terminal box is open.

The system to be monitored is stopped.

Not connected

The emergency stop circuit in the terminal box is open.

The system to be monitored is stopped.

WARNING

Danger of death resulting from the premature emergency stop unlocking

If you have shut down the system to be monitored, you can only release the emergency stop

button or put the system to be monitored back into operation if the condition that triggered

the emergency stop function has been corrected and a safe restart is carried out.

2.4.2.4

Interfaces

Information about the interface assignment on the PN terminal box can be found in the

“Handheld Terminal HT 2" manual under “Connecting" → “Terminal Box PN" → “Interface

assignment on the PN Plus terminal box"connection.

SINUMERIK 840D sl Hardware. Manual (2011-2020) - page 7