Omron R88D-1SN ECT Series, User Manual, Page: 758 / 974

12 Troubleshooting
12 - 26 AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User’s Manual (I586)
38 00 Drive Prohibi-
tion Input
Error Both the Positive Drive
Prohibition (POT) and
the Negative Drive Pro-
hibition Input (NOT)
turned ON. An error occurred on the
switch, wire, power sup-
ply, and wiring that was
connected to the Posi-
tive Drive Prohibition
Input (POT) or Nega-
tive Drive Prohibition
Input (NOT). Check and correct an error on the
switch, wire, power supply, and wir-
ing that is connected to the Positive
Drive Prohibition Input or Negative
Drive Prohibition Input.
False detection
occurred because the
control signal power
supply was turned ON
slowly. Check whether the control signal
power supply (12 to 24 VDC) is
turned ON slowly, and adjust the
timing if it is slow.
01 Drive Prohibi-
tion Detected The operation was
stopped according to
the user setting
because the motor ran
in the prohibited direc-
tion when the Drive Pro-
hibition was enabled. Incorrect or broken wir-
ing of Positive Drive
Prohibition Input (POT)
or Negative Drive Prohi-
bition Input (NOT) Correct the wiring if the Positive
Drive Prohibition Input (POT) or
Negative Drive Prohibition Input
(NOT) is wired incorrectly.
If the cable is broken, replace it.
Incorrect setting of the
Drive Prohibition Input Review the setting of the drive pro-
hibition input port and set it cor-
rectly.
41 00 Absolute
Encoder
Counter
Overflow
Error The multi-rotation
counter of the encoder
exceeded the maxi-
mum number of rota-
tions. An inappropriate value
was set in the
Encoder
- Operation Selection
when Using Absolute
Encoder
(4510-01 hex).
Set the appropriate value in the
Encoder - Operation Selection
when Using Absolute Encoder
(4510-01 hex).
The multi-rotation num-
ber of the encoder
exceeded the maxi-
mum number of rota-
tions. Set the travel distance so that the
multi-rotation number does not
exceed the maximum number of
rotations.
43 01 Encoder
Memory
Error The encoder detected a
non-volatile memory
error. False detection due to a
data read error that was
caused by excessive
noise If this event occurs after you cycled
the power supply, the encoder is
faulty. Replace the motor.
Non-volatile memory
failure
44 00 1-rotation
Counter Error The encoder detected a
one-rotation counter
error. There is excessive
noise. Take noise countermeasures. If this
event occurs after you performed
noise countermeasures, the motor
is faulty. Replace the motor.
Failure due to vibration,
impact, condensation or
foreign matter, etc.
Error No.
Name Cause Measures
Main
(hex)
Sub
(hex)