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13. SERVO AMPLIFIERS WITH A LARGE CAPACITY (30k TO 55kW)
2) When control function of magnetic contactor is enabled and the status returns to ready off
The magnetic contactor of the converter unit is turned off with servo off, and the main circuit magnetic
contactor is shut off.
(3s)
(3s)
(Note 3)
ON
OFF
Main circuit
power supply
ON
OFF
Servo on command
(from controller)
ON
OFF
Base circuit
ON
OFF
Converter unit control
power supply
ON
OFF
Drive unit control
power supply
(Note 1)
Electromagnetic
brake interlock (MBR)
0r/min
Servo motor speed
0r/min
Position command
(Note 4)
Release
Activate
Electromagnetic
brake
Coasting
Electromagnetic
brake operation
delay time
ON
OFF
Release delay
time and external
relay (Note 2)
Release delay time and external relay (Note 2)
Note 1. ON: Electromagnetic brake is not activated.
OFF: Electromagnetic brake is activated
2. Electromagnetic brake is released after delaying for the release time of electromagnetic brake and operation time of
external circuit relay. For the release delay time of electromagnetic brake, refer to the Servo Motor Instruction Manual
(Vol.2).
3. Make the controller execute the position command after the electromagnetic brake is released.
4. In position control mode