YASKAWA SGM H Series User Manual page 546

11 Inspection, Maintenance, and Troubleshooting
11.1.3 Troubleshooting of Alarm and Warning
Alarm Situation at Alarm
Alarm Name
Display
Occurred when the
control power sup-
ply was turned ON.
Occurred when the
main circuit power
supply was turned
ON.
Regenerative
Occurred during
Overload
normal operation
(Detected when
A.32
(large increase of
the power to the
regenerative resistor
main circuit is
temperature).
turned ON.)
Occurred during
normal operation
(small increase of
regenerative resistor
temperature).
Occurred at servo-
motor deceleration.
Occurred when the
control power sup-
Main Circuit
ply was turned ON.
Wiring Error
(Detected when
A.33
Occurred when the
the power to the
main circuit power
main circuit is
supply was turned
turned ON.)
ON.
Occurred when the
control power sup-
∗ ply was turned ON.
1
Overvoltage
Occurred when the
(Detected when
main circuit power
the
supply was turned
SERVOPACK's
ON.
main circuit DC
A.40
voltage is 420 V
or more.)
Occurred during
(Detected when
normal operation.
the power to the
main circuit is
turned ON.)
Occurred at servo-
motor deceleration.
11-8
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Table 11.3 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 moment of inertia
is excessive, resulting in insufficient regenerative
capacity.
A SERVOPACK fault occurred.
The motor speed is high, and the load moment of
inertia is excessive.
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 moment of inertia and minus load
specifications. Reconsider the load and operation
conditions.
Replace the SERVOPACK.
Reconsider the load and operation conditions.
Corrective Actions