YASKAWA SGLFW User Manual page 384

Alarm Alarm Name Situation at Alarm
Display
A.32
Regenerative Occurred when the
Overload control power sup-
(Detected when ply was turned ON.
the power to the
Occurred when the
main circuit is
main circuit power
turned ON.)
supply was turned
ON.
Occurred during
normal operation
(large increase of
regenerative resistor
temperature).
Occurred during
normal operation
(small increase of
regenerative resistor
temperature).
Occurred at servo-
motor deceleration.
A.33
Main Circuit Occurred when the
Wiring Error control power sup-
(Detected when ply was turned ON.
the power to the
Occurred when the
main circuit is
main circuit power
turned ON.)
supply was turned
ON.
A.40
Overvoltage Occurred when the
(Detected when control power sup-
the ply was turned ON.
SERVOPACK's
Occurred when the
main circuit DC
main circuit power
voltage is 420 V
supply was turned
or more.)
ON.
(Detected when
Occurred during
the power to the
normal operation.
main circuit is
turned ON.)
Occurred at servo-
motor deceleration.
Table 11.5 Alarm Display and Troubleshooting (Cont'd)
Occurrence
A SERVOPACK board fault occurred.
The power supply voltage is 270 V or more.
The regenerative energy is excessive.
The regenerating state continued.
The setting of parameter Pn600 is smaller than the
external regenerative resistor's capacity.
A SERVOPACK fault occurred.
The regenerative energy is excessive.
A SERVOPACK board fault occurred.
In the DC power input mode, AC power is supplied
through L1 and L2 or L1, L2, and L3.
In the AC power input mode, DC power is supplied
through 1 and
Pn600 is set to 0 if the regenerative resistance is dis-
connected.
A SERVOPACK board fault occurred.
The AC power voltage is too high.
A SERVOPACK fault occurred.
Check the AC power voltage (check if there is no
excessive voltage change.)
The motor speed is high and load mass is excessive,
resulting in insufficient regenerative capacity.
A SERVOPACK fault occurred.
The motor speed is high, and the load mass is exces-
sive.
Cause
Replace the SERVOPACK.
Correct the input voltage.
Select a proper regenerative resistance capacity, or
reconsider the load and operation conditions.
Correct the set value of parameter Pn600.
Replace the SERVOPACK.
Select a proper regenerative resistance capacity, or
reconsider the load and operation conditions.
Replace the SERVOPACK.
For AC power input, Pn001.2=0.
For DC power input, Pn001.2=1.
terminals.
Set Pn600 to 0.
Replace the SERVOPACK.
The AC power voltage must be within the speci-
fied range.
Replace the SERVOPACK.
The AC power voltage must be within the speci-
fied range.
Check the load mass and minus load specifica-
tions. Reconsider the load and operation condi-
tions.
Replace the SERVOPACK.
Reconsider the load and operation conditions.
11.1 Troubleshooting
Corrective Actions
11-9
11