Parker Variable Speed Drive AC30 series. User’s Manual (2017) - page 2
3-2
Product Overview
Control Features
The inverter is fully featured when controlled using the optional Keypad (or a suitable pc programming tool).
The ‘General’ control features below are not user-selectable when the unit is controlled using the analog and digital inputs and outputs.
General
Output Frequency
Limited to Switching Frequency divided by 8, with a maximum of 590Hz.
e.g.
for 4kHz switching frequency it is 4000/8 = 500Hz,
for 16kHz switching frequency it is 590Hz. Refer to Parker SSD for higher output frequency.
Derating of output current may apply, refer to Appendix F Technical Specifications.
Switching Frequency
Minimum 2kHz.
Maximum 8kHz – 16kHz dependent on frame size and motor type (Induction or PMAC)
Voltage Boost for V/F control 0-25%
Motor Control Modes
Induction motor: VHz control, Sensorless Vector Control, or Closed Loop Vector Control (with
encoder). Sensorless and Closed Loop Vector require autotune for IM.
Induction motor : Closed Loop Vector Control (with Resolver)
PMAC motor: Sensorless Vector Control
PMAC motor: Sensorless Vector Control or Closed Loop Vector Control (with resolver and
encoder (with power on constraints)
Skip Frequencies
Skip frequencies with adjustable skip band width
Preset Speeds
User selectable preset speeds
Stopping Modes
Ramp, Coast, DC Injection, Quickstop
S Ramp and Linear Ramp Symmetric or asymmetric ramp up and down rates
Raise/Lower
Programmable MOP function
Jog
Programmable jog speed
Diagnostics
Full diagnostic and monitoring facilities
Protection
Trip Conditions
Output short line to line, and line to earth
Overcurrent > 220% HD current
Stall
Heatsink overtemperature
Motor Thermistor overtemperature (using optional GPIO)
Overvoltage and undervoltage
Current Limit
Adjustable 110% (Normal Duty) or 150% (Heavy Duty)
180% shock load limit (Heavy Duty)
Inverse Time
Dual Rating
Normal duty (110% overload for 60s)
Heavy duty (150% overload for 60s)
Inputs/
Outputs
Analog Inputs
2 configurable inputs; voltage or current
Analog Outputs
2 configurable outputs; voltage or current
Digital Inputs
3 configurable 24V dc inputs
Digital I/O
4 configurable 24V dc open collector outputs/digital inputs
Relay Outputs
2 configurable relay output
Table 3-1 Control Features