YASKAWA SGD7S-R70A - Page 155

8.1 Alarm Displays
8.1.2 Troubleshooting Alarms
8-15
8
Maintenance
A.320:
Regenerative
Overload
The power supply
voltage exceeded the
specified range.
Measure the power
supply voltage.
Set the power supply volt-
age within the specified
range.
–
The external regener-
ative resistance value
or regenerative resis-
tor capacity is too
small, or there has
been a continuous
regeneration state.
Check the operating
conditions or the
capacity using the Sig-
maJunmaSize+ Capac-
ity Selection Software or
other means.
Change the regenerative
resistance value or capac-
ity.
Reconsider the operating
conditions using the Sig-
maJunmaSize+ Capacity
Selection Software or
other means.
*4
There was a continu-
ous regeneration state
because a negative
load was continu-
ously applied.
Check the load applied
to the Servomotor
during operation.
Reconsider the system
including the servo,
machine, and operating
conditions.
–
The setting of Pn600
(Regenerative Resis-
tor Capacity) is
smaller than the
capacity of the Exter-
nal Regenerative
Resistor.
Check to see if a
Regenerative Resistor is
connected and check
the setting of Pn600.
Correct the setting of
Pn600.
*1
The setting of Pn603
(Regenerative Resis-
tor Capacity) is
smaller than the
capacity of the Exter-
nal Regenerative
Resistor.
Check to see if a
Regenerative Resistor is
connected and check
the setting of Pn603.
Correct the setting of
Pn603.
*1
The external regener-
ative resistance is too
high.
Check the regenerative
resistance.
Change the regenerative
resistance to a correct
value or use an External
Regenerative Resistor of
an appropriate capacity.
*1
A failure occurred in
the SERVOPACK.
–
The SERVOPACK may be
faulty. Replace the SER-
VOPACK.
–
Continued on next page.
Continued from previous page.
Alarm Number:
Alarm Name
Possible Cause Confirmation Correction Reference