When Connecting Multiple Drive Units And Servo Amplifiers To The Converter Unit - Mitsubishi Electric -MR-CV User Manual

When connecting multiple drive units and servo amplifiers to the
converter unit
To stop the converter unit and drive units at the same time, wire the converter unit and drive units so that EM1 (Forced stop)
of both are turned off at the same time.
When the magnetic contactor drive output is enabled
When EM1 (Forced stop) of the converter unit and drive units are turned off, the magnetic contactor is turned off and the main
circuit power supply is shut off. The operating drive units shut off the base circuit, and a servo forced stop warning is displayed
on the drive units. When EM1 is turned on by the converter unit and drive units, the magnetic contactor is turned on and the
main circuit power supply is turned on, then the drive units automatically resume operation.
Drive unit (axis the protection coordination cable is
not connected) or servo amplifier
Servo motor speed
Drive unit (axis the protection coordination cable is
not connected) or servo amplifier
Base circuit
Drive unit (axis the protection coordination cable is
not connected) or servo amplifier
MBR (Electromagnetic brake interlock)
Drive unit (axis the protection coordination cable is
connected)
Servo motor speed
Drive unit (axis the protection coordination cable is
connected)
Base circuit
Drive unit (axis the protection coordination cable is
connected)
MBR (Electromagnetic brake interlock)
Drive unit (axis the protection coordination cable is
connected)
Converter main circuit warning
Main circuit power supply
*3
EM1 (Forced stop)
*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.
*3 Wire the converter unit and drive units so that EM1 (Forced stop) of both are turned off at the same time.
Transition No.
1) in the figure
2) in the figure
5 SIGNALS AND WIRING
60
5.6 Forced stop of the converter unit
ON
OFF
ON
OFF
*1
ON
OFF
ON
OFF
*1
Alarm
No alarm
ON
OFF
ON
OFF (Enabled)
Description
When EM1 of the converter unit is turned on, the main circuit power supply is turned on.
After the main circuit capacitor is completely charged, the base circuit and MBR are turned on.
Dynamic brake
*2
(50 ms)
Dynamic brake
*2
(50 ms)
1)
(3 s)
2)
(3 s)
2)
(3 s)
2)
(3 s)
2)