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13. SERVO AMPLIFIERS WITH A LARGE CAPACITY (30k TO 55kW)
(3) Forced stop (EM1) ON/OFF timing chart
(a) When control function of magnetic controller is enabled
1) Converter unit
When the forced stop (EM1) is made valid in the converter unit, the magnetic contactor is turned off
and the main circuit power supply is shut off. The drive unit in operation stops, and Main circuit off
warning (E9) appears. When the forced stop (EM1) is deactivated in the converter unit, the magnetic
contactor is turned on, the main circuit power is supplied, and then the drive unit automatically
resumes the operation.
(3s)
Electromagnetic brake
interlock (MBR)
(10ms)
(3s)
(3s)
ON
OFF
Base circuit
ON
OFF
Servo motor speed
Converter main circuit
off warning
ON
OFF
Main circuit
power supply
ON
OFF
Forced stop (EM1)
Invalid (ON)
Valid (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