Omron R88M-1M Series User Manual page 749

Error No.
Name
Main Sub
(hex) (hex)
13 00 Main Power
Supply
Undervolt-
age (insuffi-
cient voltage
between P
and N)
01 Main Circuit
Power Sup-
ply Phase
Loss Error
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User's Manual (I586)
Cause
The main circuit power Incorrect wiring of the
supply voltage fell below main circuit power sup-
the operation guaran- ply
tee range during Servo
ON.
The low power supply
voltage is applied to the
Servo Drive.
The long time was set in
Momentary Hold Time
and the voltage was
decreased momentarily.
Servo Drive failure
The phase loss of the Incorrect wiring, for
main circuit power sup- example the single-
ply was detected. phase power supply is
input to a 3-phase input
type Servo Drive.
In the case where the
single-phase power
supply is input to a sin-
gle- and 3-phase input
type Servo Drive, the
phase loss detection is
enabled.
The power supply volt-
age is low or insufficient.
Broken wiring of the
main circuit power sup-
ply input
Servo Drive failure
12 Troubleshooting
Measures
If the power supply cables are not
wired to the main circuit power sup-
ply terminals (L1, L2, L3), connect
them.
Increase the power supply capacity
if it is small. Measure the applied
power supply voltage, and apply the
voltage according to the specifica-
tion.
Remove the cause that momentar-
ily decreased the voltage. Set a
short time in the Momentary Hold
Time so as not to detect this error
due to a momentary decrease in
voltage.
If this event occurs again after you
performed all corrections shown
above, replace the Servo Drive.
When there is a failure in inrush
current prevention circuit, in some
cases, this error occurs.
Confirm the Servo Drive specifica-
tions, and perform the correct wir-
ing.
Set Main Circuit Power Supply -
Phase Loss Detection Enable
(4320-02 hex) to 0 (disabled).
Improve power supply conditions by
increasing the power supply capac-
ity or the like.
Replace the main circuit power sup-
ply input cable.
If this event occurs again after you
performed all corrections shown
above, replace the Servo Drive.
12
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