Omron R88D-KTA5L User Manual page 584

11-4 Troubleshooting
Troubleshooting Using the Operation Status
Symptom
The PWR LED
indicator does not
light when the power
supply is turned ON.
The motor does not
rotate even if
commands are input
from the controller.
(Continued on next
page)
11
11-23
Probable cause
The power supply cable is wired
incorrectly.
The operation command (RUN)
is OFF.
The Forward or Reverse Drive
Prohibition Input (POT or NOT)
is OFF.
The control mode does not
conform to the command.
The error counter reset
(ECRST) is ON.
Command Pulse Mode
Selection (Pn007) is selection is
incorrect.
The zero speed designation
(VZERO) is OFF.
The internally set speeds are not set.
The No. 1 Torque Limit (Pn013)
or No. 2 Torque Limit (Pn522) is
set to 0.
The Servomotor power cable is
wired incorrectly.
The encoder cable is wired
incorrectly.
The control I/O connector (CN1)
is wired incorrectly.
Power is not supplied.
The speed command is
disabled.
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
Items to check
Check to see if the power supply input is
within the allowed power supply voltage
range.
Check to see if the power supply input is
wired correctly.
In Monitor Mode, check whether the RUN
signal is ON or OFF.
In Monitor Mode, check whether the POT
signal and NOT signal are ON or OFF.
Check the control mode Selection
(Pn001).
In Monitor Mode, check whether the
ECRST signal is ON or OFF.
Check the controller's command pulse
type and the Servo Drive's command
pulse type.
In Monitor Mode, check whether the
VZERO signal is ON or OFF.
Check the set value of Pn304 to Pn311.
Check the set value of Pn013 and Pn522. Return the set value to the default
Check the wiring.
Check the command pulse's wiring.
Check the command pulse type.
Check the command pulse's voltage.
Check whether the power supply is ON and
check the PWR LED indicator.
Check the voltage across the power
supply terminals.
Check if the speed command method is
correct.
Measures
Supply the correct power supply
voltage.
Wire correctly.
· Turn ON the operation
command (RUN).
· Wire correctly.
· Turn ON the POT and NOT
signals.
· Disable them in the settings when the
POT and NOT signals are not used.
Set the control mode according to
the command.
· Turn OFF the ECRST signal.
· Wire correctly.
Set the Servo Drive's pulse type
to match the controller's
command pulse type.
· Turn ON the VZERO signal.
· Wire correctly.
Set the desired speeds.
setting.
Wire correctly.
Wire correctly.
Set the Servo Drive's pulse type
to match the controller's
command pulse type.
Connect a resistor that matches
the voltage.
Turn ON the power supply.
Wire the power-ON circuit
correctly.
· Set the external analog
command correctly.
· Set the internal speed correctly.