YASKAWA SGD7S-***A20****F62 Series Product Manual page 88

5.3 Troubleshooting Alarms
Alarm Number:
Alarm Name
A.320:
Regenerative
Overload
5-14
Possible Cause
The power supply
Measure the power sup-
voltage exceeded the
ply voltage.
specified range.
The external regener-
ative resistance value Check the operating con-
or regenerative resis- ditions or the capacity
tor capacity is too using the SigmaJunma-
small, or there has Size+ Capacity Selection
been a continuous Software or other means.
regeneration state.
There was a continu-
ous regeneration state Check the load applied to
because a negative the Servomotor during
load was continu- operation.
ously applied.
The setting of Pn600
(Regenerative Resis-
Check to see if a Regen-
tor Capacity) is
erative Resistor is con-
smaller than the
nected and check the
capacity of the Exter-
setting of Pn600.
nal Regenerative
Resistor.
The setting of Pn603
(Regenerative Resis- Check to see if a Regen-
tance) is smaller than erative Resistor is con-
the capacity of the nected and check the
External Regenerative 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.
Refer-
Correction
ence
–
*4
–
*1
*1
*4
–
Continued on next page.