3 - 1
3. SIGNALS AND WIRING
3. SIGNALS AND WIRING

WARNING

Any person who is involved in wirin g should be fully competent to do t he work.
Before starting wiring, make sure tha t the voltage is safe in the tester m ore than 10
minutes after power-off. Otherwise, you may get an electric shock.
Ground the servo amplifier and the ser vo motor securely.
Do not attempt to wire the servo amplif ier and servo motor until they have been
installed. Otherwise, you may get an electric shock.
The cables should not be damaged, str essed excessively, loaded heavil y, or
pinched. Otherwise, you may get an electric shock.
CAUTION
Wire the equipment correctly and secur ely. Otherwise, the servo motor m ay
misoperate, resulting in injury.
Connect cables to correct terminals to pr event a burst, fault, etc.
Ensure that polarity ( , ) is correct. Otherwise, a burst, dam age, etc. may occur.
The surge absorbing diode installed to the DC relay designed for control o utput
should be fitted in the specified dir ection. Otherwise, the signal is not output due to
a fault, disabling the emergency stop a nd other protective circuits.
Control output
signal
COM
(DC24V)
Servo amplifier
RA
RA
Servo
Amplifier
COM
(24VDC)
Control
output
signal
Use a noise filter, etc. to minimize the influence of electromagnetic int erference,
which may be given to electronic equipment used near the servo amplifier.
Do not install a power capacitor, surg e suppressor or radio noise filter ( FR-BIF
option) with the power line of the servo motor.
When using the regenerative brake res istor, switch power off with the alarm signal.
Otherwise, a transistor fault or the like may overheat th e regenerative brake
resistor, causing a fire.
Do not modify the equipment.
POINT
CN1A, CN1B, CN2 and CN3 have the same shape. Wrong connection of
the connectors will lead to a failure. Connect them correctly.