Omron R88D-KN01L-ECT-L User Manual page 439

Symptom
The servo does not lock.
The servo locks but the
motor does not operate.
G5-series Linear Motors/Servo Drives With Built-in EtherCAT Communications
Probable cause
The power cable is not
connected correctly.
The motor power supply is
not ON.
The Positive or Negative
Drive Prohibition Input (POT
or NOT) is OFF.
The force limit is set to "0."
The Servo Drive has broken
down.
The host controller does not
give a command.
The Servo Drive received a
command but it is not
accepted.
It is hard to determine if the
motor runs.
The brake is operating.
The force limits set in the
Positive torque limit value
(60E0 hex) and the Negative
torque limit value (60E1 hex)
are too small.
The Positive or Negative
Drive Prohibition Input (POT
or NOT) is OFF.
The control mode does not
conform to the command.
The motor power cable is
wired incorrectly.
The external encoder cable
is wired incorrectly.
Power is not supplied.
The Servo Drive has broken
down.
12 Troubleshooting and Maintenance
Items to check
Check to see if the motor
power cable is connected
properly.
Check the main circuit wiring
and power voltage.
• Check to see if the input for
Positive or Negative Drive
Prohibition Input (POT or
NOT) is OFF.
• Check the input of +24 VIN
to CN1.
Check to see if the force
limits in the Positive torque
limit value (60E0 hex) and
the Negative torque limit
value (60E1 hex) are set to
"0."
–
For a position command,
check to see if the speed and
position are set to "0."
Check to see if the Servo
Drive retains the object value
for two communications
cycles or more in Profile
position mode (pp).
Check to see it the speed
command given by the host
controller is too small.
Check the brake interlock
output (BKIR) signal and the
+24 VDC power supply.
Check to see if the force
limits in objects 60E0 hex
and 60E1 hex are set to a
value close to "0."
Check the ON/OFF state of
the POT and NOT signals
from the CX-Drive.
Check the set value of the
Control Mode Selection
(3001 hex).
Check the wiring.
Check the power supply and
the 7-segment display.
Check the voltage between
the power terminals.
–
Measures
Wire the motor power cable
correctly.
Input the correct power and
voltage for the main circuit.
Turn ON POT and NOT. Input
+24 VIN to CN1.
Set the maximum force to be
used for each of these
objects.
Replace the Servo Drive.
Enter position and speed
data. Start the motor.
Set the Servo Drive so that it
retains the object value for
two communications cycles
or more.
Check the speed command
from the host controller.
Check to see if the brake is
released.
Set the maximum force to be
used for each of these
objects.
• 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.
Wire correctly.
Turn ON the power.
Wire the power-ON circuit
correctly.
Replace the Servo Drive.
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