Omron R88D-GT series User Manual

8-16
8-3 Troubleshooting
8
Troubleshooting
The Servomotor
does not rotate
even if
commands are
input from the
Controller.
The torque command is
disabled.
Check if the torque command input
procedure is correct.
Correctly set the torque
command.
The CW Input and CCW
Input are ON at the same
time.
Check the command pulse’s wiring.
• Input the pulse signal ei-
ther to the CW Input or
CCW Input to the pulse
signal.
• Always turn OFF the ter-
minal that is not being
input to.
Servo Drive is faulty. --- Replace the Servo Drive.
The Servomotor
operates
momentarily, but
then it does not
operate after that.
The Servomotor Power
Cable is wired incorrectly.
Check the wiring of the Servomotor
Power Cable’s phases U, V, and W.
Wire correctly.
The Encoder Cable is wired
incorrectly.
Check the Encoder Cable’s wiring. Wire correctly.
The Servomotor
rotates without a
command.
The command pulse input
is incorrect.
Check the command pulse type.
Set the correct command
pulse input.
Check the command pulse’s
voltage.
Connect a resistor that
matches the voltage.
Servo Drive is faulty. --- Replace the Servo Drive.
The Servomotor
rotates in the
opposite direction
from the
command.
The CW input and CCW
input connections are
reversed.
Check the Controller’s command
pulse type and the Servo Drive’s
command pulse type.
Connect the CW pulse signal
to the CW Input and the
CCW pulse signal to the
CCW Input.
Symptom Probable cause Items to check Countermeasures

Omron R88D-GT series Specifications

General

Brand	Omron
Model	R88D-GT series
Category	Controller
Language	English