Yaskawa SGDH Linear Sigma Series - Manual (Page 361)

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