10. SPINDLE SPEED FUNCTION
B-64693EN-1/01
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NOTE
1 Phase synchronization cannot be executed in superimposition by differential
speed synchronization or motion command. Addition, if differential speed
synchronization or motion command is specified in phase synchronization,
phase synchronization is canceled and differential speed synchronization or
motion command is executed. In this case, Phase synchronization for
Servo/Spindle synchronous error signal SYPER <Fn527.7> becomes "1".
2 Phase synchronization cannot be executed while canceling Servo/Spindle
synchronous control.
In addition, If Servo/Spindle synchronous control is canceled during execution
phase synchronization, phase synchronization is canceled.
3 If the servo software or the spindle software doesn’t correspond to this function,
Phase synchronization for Servo/Spindle synchronous error signal SYPER
<Fn527.7> becomes "1" when Phase synchronization for Servo/Spindle
synchronous start signal SYPST <Gn517.7> is set "1".
4 Depending on the mechanical rigidity or the servo response, the synchronization
error might occur in high-speed rotation or acceleration/deceleration. Therefore,
set big value more than the synchronization error to allowable error pulse value
on phase synchronization (parameter No.3847).
Addition, using together with "Soft start/stop function" of spindle motor is
effective for a decrease in synchronization error at acceleration/deceleration.
Refer to Spindle motor parameter manual (B-65280EN) for details.
5 On phase synchronization, the setting of gear rate is as following.
- Main-spindle (spindle motor)
The gear ratio between main-spindle and spindle sensor can be used only
1:1.
On the system that the arbitrary gear ratio between motor sensor and spindle
(parameter Nos.4171-4174) or the arbitrary gear ratio between spindle
sensor and spindle (parameter Nos.4500-4503) is used, phase
synchronization cannot be used.
- Sub-spindle (servo motor)
The gear rate between sub-spindle and servo motor can be set n:m.
6 Always use Feed-forward function of sub-spindle (servo motor). It is
recommended to set 100% to feed-forward coefficient. Refer to "Feed-forward
Function" of Servo motor parameter manual (B-65270EN).
7 It is necessary to set Servo/Spindle synchronous control (FSSB type) for this
function. Refer to the manual CONNECTION MANUAL (FUNCTION)
(B-64693EN-1) "11.22.2 Servo/Spindle synchronous control (FSSB type)" for
details.
8 It is necessary to establish the reference position (Reference position
establishment signals ZRFx <Fn120.x> is "1") of sub-spindle (servo motor)
before phase synchronization start from power supply turning on.
However, if the combination between main-spindle (spindle motor) and
sub-spindle (servo motor) is not changed, the reference position establishment
since the second times is unnecessary.
9 Set rotary axis A type (bit 0 (ROT) of parameter No.1006 is set 1 and bit 1 (ROS)
of parameter No.1006 is set 0) to sub-spindle (servo motor).