Signals And Wiring - Mitsubishi Electric MELSERVO-J3 Series Instruction Manual

3. SIGNALS AND WIRING

3. SIGNALS AND WIRING
WARNING
CAUTION
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 direct drive motor securely.
Do not attempt to wire the servo amplifier and direct drive motor until they have
been installed. Otherwise, it may cause an electric shock.
The cables should not be damaged, stressed excessively, loaded heavily, or
pinched. Otherwise, it may cause an electric shock.
To avoid an electric shock, insulate the connections of the power supply terminals.
Wire the equipment correctly and securely. Otherwise, the direct drive motor may
operate unexpected, resulting in injury.
Connect cables to correct terminals to prevent a burst, fault, etc.
Ensure that polarity ( ,
The surge absorbing diode installed on the DC output signal relay must be wired in
the specified direction. Otherwise, the forced stop (EM1) and other protective
circuits may not operate.
Servo amplifier
DOCOM
Control output
signal
DICOM
For sink output interface
Electromagnetic interference may be given to electronic equipment used near the
servo amplifier. Use a noise filter, etc. to minimize the influence of electromagnetic
interference.
Do not install a power capacitor, surge killer or radio noise filter (FR-BIF option) with
the power line of the direct drive 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.
Connect the servo amplifier power supply output (U, V, and W) to the direct drive
motor power supply input (U, V, and W) directly. Do not let a magnetic contactor,
etc. intervene. Otherwise, it may cause a malfunction.
Servo amplifier
U
V
W
) is correct. Otherwise, a burst, damage, etc. may occur.
24VDC
RA
For source output interface
Direct drive motor Servo amplifier
U
V
M
W
3 - 1
Servo amplifier
24VDC
DOCOM
Control output
RA
signal
DICOM
Direct drive motor
U
U
V
V
W
W
M