5 Adjustments
5-7
5.1.4 Safety Precautions on Adjustment of Servo Gains
CAUTION
If adjusting the servo gains, observe the following precautions.
Do not touch the rotating section of the servomotor while power is being supplied to the motor.
Before starting the servomotor, make sure that the DRIVER can come to an emergency stop at any time.
Make sure that a trial operation has been performed without any trouble.
Install a safety brake on the machine.
Set the following protective functions of the DRIVER to the correct settings before starting to adjust
the servo gains.
(1) Overtravel Function
Set the overtravel function. For details on how to set the overtravel function, refer to
4.3.2
Overtravel
.
(2) Torque Limit
The torque limit calculates the torque required to operate the machine and sets the torque
limits so that the out- put torque will not be greater than required. Setting torque limits can
reduce the amount of shock applied to the machine when troubles occur, such as collisions or
interference. If a torque limit is set lower than the value that is needed for operation,
overshooting or vibration can be occurred.
For details, refer to
4.6 Limiting Torque
.
(3) Excessive Position Error Alarm Level
The excessive position error alarm is a protective function that will be enabled when the
DRIVER is used in position control.
If this alarm level is set to a suitable value, the DRIVER will detect an excessive position error
and will stop the servomotor if the servomotor does not operate according to the reference.
The position error indicates the difference between the position reference value and the
actual motor position.
The position error can be calculated from the position loop gain (Pn102) and the motor speed
with the follow- ing equation.
Excessive Position Error Alarm Level (Pn520 [1 reference unit])
Содержание LECYU Series
Страница 30: ...1 Outline 1 9 1 4 3 Three phase 200 V LECYU2 V9 Models ...
Страница 65: ...3 Wiring and Connection 3 11 3 Wiring Example with DC Power Supply Input DRIVER ...
Страница 92: ...3 Wiring and Connection 3 38 External Dimensions Units mm 1 FN Type by Schaffner EMC Inc ...
Страница 93: ...3 Wiring and Connection 3 39 2 FN Type ...
Страница 99: ...3 Wiring and Connection 3 45 4 Cable with Connector for CN8 Model LEC JZ CVSAF External Dimensions Units mm ...
Страница 143: ...4 Operation 4 44 ...