Signals And Wiring - Mitsubishi Electric MELSERVO MR-J4-B-LL Series Instruction Manual

2. SIGNALS AND WIRING

2. 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 (20 minutes or
more for converter unit) until the charge lamp turns off. Then, confirm that the
voltage between P+ and N- (between L+ and L- for converter unit) 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, be sure to look at the lamp
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.
Servo amplifier
DOCOM
Control output
signal
For sink output interface
Use a noise filter, etc. to minimize the influence of electromagnetic interference.
Electromagnetic interference may affect 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, shut the 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.
Connecting a servo motor of the wrong axis to U, V, W, or CN2 of the servo
amplifier may cause a malfunction.
24 V DC
RA
For source output interface
2 - 1
Servo amplifier
24 V DC
DOCOM
Control output
RA
signal