5 SIGNALS AND WIRING
5.6 Forced stop of the converter unit
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5
5.6
Forced stop of the converter unit
When combining one converter unit and one drive unit
When the magnetic contactor drive output is enabled
When EM1 (Forced stop) of the converter unit is turned off, the magnetic contactor is turned off, and the main circuit power
supply is shut off. The operating drive unit shuts off the base circuit, and a main circuit off warning is displayed on the drive
unit. When EM1 of the converter unit is turned on, the magnetic contactor is turned on and the main circuit power supply is
turned on, then the drive unit automatically resumes operation.
*1 If an electromagnetic brake is installed externally, configure the circuit so that the electromagnetic brake operates with MBR as
described below.
ON: Electromagnetic brake is not activated
OFF: Electromagnetic brake is activated
*2 Magnetic contactors with a built-in external dynamic brake have a delay (about 50 ms), as do external relays.
Transition No.
Description
1) in the figure
When EM1 of the converter unit is turned on, the main circuit power supply is turned on.
2) in the figure
After the main circuit capacitor is completely charged, the base circuit and MBR are turned on.
(50 ms)
*2
ON
OFF
ON
(3 s)
(3 s)
2)
2)
1)
ON
OFF
ON
OFF
Dynamic brake
MBR
(Electromagnetic brake interlock)
*1
Base circuit
Servo motor speed
Converter main circuit warning
Alarm
No alarm
Main circuit power supply
EM1 (Forced stop)
OFF (Enabled)
