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Mitsubishi Electric MR-J3-B Instruction Manual page 5

Melservo-j3 series servo amplifier
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(2) Wiring
Wire the equipment correctly and securely. Otherwise, the servo motor may misoperate.
Do not install a power capacitor, surge absorber or radio noise filter (FR-BIF option) between the servo
motor and servo amplifier.
Connect the output terminals (U, V, W) correctly. Otherwise, the servo motor will operate improperly.
Do not connect AC power directly to the servo motor. Otherwise, a fault may occur.
The surge absorbing diode installed on the DC output signal relay of the servo amplifier must be wired in
the specified direction. Otherwise, the forced stop (EM1) and other protective circuits may not operate.
(3) Test run adjustment
Before operation, check the parameter settings. Improper settings may cause some machines to perform
unexpected operation.
The parameter settings must not be changed excessively. Operation will be insatiable.
(4) Usage
Provide an external emergency stop circuit to ensure that operation can be stopped and power switched
off immediately.
Any person who is involved in disassembly and repair should be fully competent to do the work.
Before resetting an alarm, make sure that the run signal of the servo amplifier is off to prevent an
accident. A sudden restart is made if an alarm is reset with the run signal on.
Do not modify the equipment.
Use a noise filter, etc. to minimize the influence of electromagnetic interference, which may be caused by
electronic equipment used near the servo amplifier.
Use the servo amplifier with the specified servo motor.
The electromagnetic brake on the servo motor is designed to hold the motor shaft and should not be used
for ordinary braking.
For such reasons as service life and mechanical structure (e.g. where a ballscrew and the servo motor
are coupled via a timing belt), the electromagnetic brake may not hold the motor shaft. To ensure safety,
install a stopper on the machine side.
CAUTION
Servo
Amplifier
24VDC
DOCOM
DICOM
Control
output
RA
signal
CAUTION
CAUTION
Servo
Amplifier
DOCOM
DICOM
Control
output
signal
A - 4
24VDC
RA
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