Signals And Wiring - Mitsubishi Electric MR-D30 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 of the servo amplifier 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, when confirming whether the charge lamp is off or not, always
confirm it from the front of the servo amplifier.
Ground the servo amplifier and servo motor securely.
Do not attempt to wire the servo amplifier and servo motor until they have been
installed. Otherwise, it may cause an electric shock.
The cables should not be damaged, stressed, loaded, 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 servo motor may
operate unexpectedly, resulting in injury.
Connect cables to the correct terminals. Otherwise, a burst, damage, etc. may
occur.
Ensure that polarity (+/-) is correct. Otherwise, a burst, damage, etc. may occur.
The surge absorbing diode installed to the DC relay for control output should be
fitted in the specified direction. Otherwise, the emergency stop and other
protective circuits may not operate.
MR-D30
DO4NB
DO4PB
For sink output interface
Use a noise filter, etc. to minimize the influence of electromagnetic interference.
Electromagnetic interference may be given to the electronic equipment used near
the servo amplifier.
Do not install a power capacitor, surge killer or radio noise filter (optional FR-BIF(-
H)) with the power line of the servo motor.
When using a 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 output (U/V/W) to the servo motor power input
(U/V/W) directly. Do not let a magnetic contactor, etc. intervene. Otherwise, it may
cause a malfunction.
Servo amplifier
U
V
W
24 V DC
RA
For source output interface
Servo motor
Servo amplifier
U
V
M
W
3 - 1
MR-D30
24 V DC
DO24VA/
DO24VB/
DO4PA
Control
RA
output signal
Servo motor
U
U
V
V
W
W
M