Signals and wiring, Signals and wiring warning, Caution – MITSUBISHI ELECTRIC MR-J2S- A User Manual

Page 48

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3. SIGNALS AND WIRING

3. SIGNALS AND WIRING

WARNING

Any person who is involved in wiring should be fully competent to do the work.

Before wiring, turn off the power and wait for 15 minutes or more until the charge

lamp turns off. Then, confirm that the voltage between P and N is safe with a
voltage tester and others. Otherwise, an electric shock may occur. In addition,
always confirm from the front of the servo amplifier whether the charge lamp is off
or not.

Ground the servo amplifier and the servo motor securely.

Do not attempt to wire the servo amplifier and servo motor until they have been

installed. Otherwise, you may get an electric shock.

The cables should not be damaged, stressed excessively, loaded heavily, or

pinched. Otherwise, you may get an electric shock.

CAUTION

Wire the equipment correctly and securely. Otherwise, the servo motor may

operate unexpectedly, resulting in injury.

Connect cables to correct terminals to prevent a burst, fault, etc.

Ensure that polarity ( , ) is correct. Otherwise, a burst, damage, etc. may occur.
The surge absorbing diode installed to the DC relay designed for control output

should be fitted in the specified direction. Otherwise, the signal is not output due to
a fault, disabling the emergency stop (EMG) and other protective circuits.

Control output
signal

COM

(24VDC)

Servo amplifier

RA

RA

Control output
signal

COM

(24VDC)

Servo amplifier

Use a noise filter, etc. to minimize the influence of electromagnetic interference,

which may be given to electronic equipment used near the servo amplifier.

Do not install a power capacitor, surge suppressor or radio noise filter (FR-BIF

option) with the power line of the servo motor.

When using the regenerative resistor, switch power off with the alarm signal.

Otherwise, a transistor fault or the like may overheat the regenerative resistor,
causing a fire.

Do not modify the equipment.

During power-on, do not open or close the motor power line. Otherwise, a

malfunction or faulty may occur.

POINT

CN1A, CN1B, CN2 and CN3 have the same shape. Wrong connection of
the connectors will lead to a failure. Connect them correctly.

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