Omron R88M-W60010T User Manual page 351

Troubleshooting
Display Error
a.400 Overvoltage
Status when
error occurs
Occurs when the • The Servo Driver board is
control circuit
defective.
power supply is
turned ON.
Occurs when the • The AC power supply
main circuit power
voltage is 290 V or
supply is turned
higher.
ON.
• Servo Driver is defective. • Replace the Servo
Occurs during nor- • Check the AC power sup-
mal operation.
ply voltage. (Was there
an excessive change in
voltage?)
• The operating rotation
frequency is high, and
the load inertia is exces-
sive. (The regeneration
capacity is insufficient.)
• Servo Driver is defective. • Replace the Servo
Occurs during Ser- • The operating rotation
vomotor decelera-
frequency is high, and
tion.
the load inertia is exces-
sive.
Cause of error
• Replace the Servo
Driver.
• Set the AC power supply
voltage in the correct
range.
Driver.
• Set the AC power supply
voltage in the correct
range.
• Recheck the load and
operating conditions.
(Check the load inertia
and minus load specifica-
tions.)
Driver.
• Check the load and oper-
ating conditions.
Chapter 5
Countermeasures
5-19