YASKAWA SGDH User Manual page 549

Alarm Situation at Alarm
Alarm Name
Display
A.32
Regenerative Occurred when the
control power sup-
Overload
ply was turned ON.
(Detected when
the power to the Occurred when the
main circuit is main circuit power
supply was turned
turned ON.)
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
control power sup-
Wiring Error
ply was turned ON.
(Detected when
the power to the
Occurred when the
main circuit is main circuit power
supply was turned
turned ON.)
ON.
A.40
∗ Occurred when the
1
Overvoltage
control power sup-
(Detected when
ply was turned ON.
the
Occurred when the
SERVOPACK's
main circuit power
main circuit DC
supply was turned
voltage is 420 V
ON.
or more.)
Occurred during
(Detected when
normal operation.
the power to the
main circuit is
turned ON.)
Occurred at servo-
motor deceleration.
Table 10.6 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.
10-9
10.1 Troubleshooting
Corrective Actions
10