YASKAWA SGD7S Product Manual page 424

12.2 Alarm Displays
12.2.2 Troubleshooting Alarms
Alarm Number:
Alarm Name
A.320:
Regenerative
Overload
12-18
Possible Cause
The power supply
Measure the power
voltage exceeded the
supply voltage.
specified range.
The external regener-
Check the operating
ative resistance value
conditions or the
or regenerative resis-
capacity using the Sig-
tor capacity is too
maJunmaSize+ Capac-
small, or there has
ity Selection Software or
been a continuous
other means.
regeneration state.
There was a continu-
ous regeneration state Check the load applied
because a negative to the Servomotor
load was continu- during operation.
ously applied.
The setting of Pn600
(Regenerative Resis-
Check to see if a
tor Capacity) is
Regenerative Resistor is
smaller than the
connected and check
capacity of the Exter-
the setting of Pn600.
nal Regenerative
Resistor.
The setting of Pn603
(Regenerative Resis- Check to see if a
tance) is smaller than Regenerative Resistor is
the capacity of the connected and check
External Regenerative the setting of Pn603.
Resistor.
The external regener-
Check the regenerative
ative resistance is too
resistance.
high.
A failure occurred in
–
the SERVOPACK.
Confirmation
Set the power supply volt-
age within the specified
range.
Change the regenerative
resistance value or capac-
ity.
Reconsider the operating
conditions using the Sig-
maJunmaSize+ Capacity
Selection Software or
other means.
Reconsider the system
including the servo,
machine, and operating
conditions.
Correct the setting of
Pn600.
Correct the setting of
Pn603.
Change the regenerative
resistance to a correct
value or use an External
Regenerative Resistor of
an appropriate capacity.
The SERVOPACK may be
faulty. Replace the SER-
VOPACK.
Continued from previous page.
Correction Reference
–
*3
–
page 5-52
page 5-52
*3
–
Continued on next page.