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(4) Pr. 372 "speed control P gain".
Used to set the proportional gain of the speed loop.
A high setting will make the speed response faster but if the setting is too high this will cause vibrations and
(5) Pr. 373 "speed control I gain".
Used to set the integral gain of the speed loop.
A high setting will shorten restoration time at occurrence of speed variation but if the setting is too high this will
cause speed overshooting.
(6) Driving/regenerative status signal output.
When vector control is selected, the driving/regenerative status is output as a signal.
Assign the function of the output signal to any of the output terminals using Pr. 190 to Pr. 195 "output terminal
(7) Instructions for vector control.
1) When using vector control, perform offline auto tuning in the motor rotation mode (whilst the motor is running).
2) Before starting operation, always confirm that the correct number of poles of the motor used. Proper speed
control cannot be performed if the number of motor poles is incorrect.
3) Couple the PLG in line with the motor shaft with a speed ratio of 1 to 1 without any mechanical looseness.
4) Make sure that the PLG has been set to the correct rotation direction on the rotation direction display of the
parameter unit. If the rotation direction is not correct, vector control cannot be carried out.
5) In the vector control mode, vector control is also exercised during acceleration/deceleration.
6) When opening the brake of a motor with brake, use the RY2 (operation ready 2) signal. (The brake may not be
opened if the FU (output frequency detection) signal is used.)
7) In the vector control mode, the maximum speed is 3600r/min (120Hz). If the speed is increased above that
value, it is clamped (limited to 120Hz (3600r/min) ).
8) Do not switch off the 5V power of the PLG during vector control. Proper vector control cannot be performed if
that power is switched off.
9) Proper vector control cannot be performed if the pulse signal from the PLG is lost due to an open cable, etc.