YASKAWA SGDV-R70F, Manual

Page: 7 / 53

A.400
Overvoltage
(Detected
in the
SERVOPACK
main
circuit
power
supply
section.)
voltage exceeded 145 V. .
For 200-VAC SERVOPACKs:
The AC power supply
voltage exceeded 290 V. .
For 400-VAC SERVOPACKs:
The AC power supply
voltage exceeded 580 V. .
For 200-VAC SERVOPACKs:
with DC power supply input:
The DC power supply
voltage exceeded 410 V. .
For 400-VAC SERVOPACKs:
The DC power supply
voltage exceeded 820 V.
Measure the power
supply voltage. Set AC/DC power supply voltage
within the specified range.
The power supply is
unstable, or was influenced
by a lightning surge.
Measure the power
supply voltage.
Improve the power supply
conditions by installing a surge
absorber, etc. Then, turn the power
supply OFF and ON again. If the
alarm still occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
A.400
(cont.)
Overvoltage
(Detected in
the
SERVOPACK
main circuit
power supply
section.)
Acceleration/deceleration
was executed under the
following conditions. . The
AC power supply voltage of
100-VAC SERVOPACK was in
the range between 115 V
and 135 V. . The AC power
supply voltage of 200-VAC
SERVOPACK was in the
range between 230 V and
270 V. . The AC power
supply voltage of 400-VAC
SERVOPACK was in the
range between 480 V and
560 V.
Check the power
supply voltage and the
speed and torque
during operation.
Set AC power supply voltage within
the specified range.
The external regenerative
resistance is too high for the
actual operating conditions.
Check the operating
conditions and the
regenerative
resistance.
Select a regenerative resistance
value appropriate for the operating
conditions and load.
The moment of inertia ratio
exceeded the allowable
value.
Confirm that the
moment of inertia ratio
is within the allowable
range.
Increase the deceleration time, or
reduce the load.
A SERVOPACK fault
occurred.
--
Turn the control power OFF and
then ON again while the main circuit
power supply is OFF. If the alarm
still occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
A.410
* "Do
not
cycle
power
to
drives"
Undervoltage
(Detected in
the
SERVOPACK
main circuit
power supply
section.)
. For 100-VAC SERVOPACKs:
The AC power supply
voltage is 49 V or less. . For
200-VAC SERVOPACKs: The
AC power supply voltage is
120 V or less. . For 400-VAC
SERVOPACKs: The AC power
supply voltage is 240 V or
less.
Measure the power
supply voltage. Set the power supply voltage within
the specified range.
The power supply voltage
dropped during operation. Measure the power
supply voltage.
Increase the power supply capacity.
Occurrence of
instantaneous power
interruption.
Measure the power
supply voltage.
When the instantaneous power cut
hold time (Pn509) is set, decrease
the setting.
The SERVOPACK fuse is
blown out.
--
Replace the SERVOPACK, connect a
reactor, and run the SERVOPACK.
A SERVOPACK fault
occurred.
--
The SERVOPACK may be faulty.
Replace the SERVOPACK.