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13. SERVO AMPLIFIERS WITH A LARGE CAPACITY (30k TO 55kW)
(b) Forced stop in the drive unit
When the forced stop (EM1) is made valid in the drive unit, the drive unit in operation stops, Main circuit
off warning (E9) appears, and then the drive unit is forcedly stopped. Configure to activate the forced
stop (EM1) of the drive unit as the forced stop (EM1) of the converter unit is activated, and to activate
the forced stop (EM1) of the converter unit as the forced stop (EM1) of the drive unit is activated. Shut
off the power supply by the external sequence as soon as the forced stop (EM1) is activated.
Electromagnetic brake
interlock (MBR)
(10ms)
(3s)
(3s)
Invalid (ON)
Valid (OFF)
Base circuit
ON
OFF
Servo motor speed
Forced stop command
(from controller) or
forced stop (EM1)
ON
OFF
Main circuit
power supply
ON
OFF
Dynamic brake
Dynamic brake
Electromagnetic brake
Electromagnetic brake
Electromagnetic brake
operation delay time
Electromagnetic brake release
(Note)
Note. ON: Electromagnetic brake is not activated.
OFF: Electromagnetic brake is activated