YASKAWA Sigma-7 SGD7S Series - Page 603

Alarm Code Alarm Name Possible Cause Confirmation Correction Reference
Pn600 (Regenerative
Resistor Capacity) is
set to a value other
than 0 (setting unit: 10
W) even though a
Regenerative Resistor
is not connected to
one of the following
SERVOPACKS:
SGD7S-R70A, -R90A,
-1R6A, -2R8A, -R70F,
-R90F, -2R1F, or
-2R8F.
Check to see if an
External Regenera-
tive Resistor is con-
nected and check
the setting of Pn600.
Connect an External
Regenerative
Resistor, or if a
Regenerative
Resistor is not
required, set Pn600
to 0.
Ä Chap. 6.18
‘Setting the
Regenerative
Resistor
Capacity’
page 194
A Regenerative
Resistor is not con-
nected to one of the
following SERVO-
PACKs:
SGD7S-470A, -550A,
-590A, or -780A.
Check to see if an
External Regenera-
tive Resistor or a
Regenerative
Resistor Unit is con-
nected and check
the setting of Pn600
(Regenerative
Resistor Capacity).
Connect an External
Regenerative
Resistor and set
Pn600 to an appro-
priate value, or con-
nect a Regenerative
Resistor Unit and set
Pn600 to 0 (setting
unit: 10 W).
A failure occurred in
the SERVOPACK.
– While the main cir-
cuit power supply is
OFF, turn the control
power supply to the
SERVOPACK OFF
and ON again. If an
alarm still occurs, the
SERVOPACK may
be faulty. Replace
the SERVOPACK.
–
A.320
(1320h)
Regenerative
Overload
The power supply
voltage exceeded the
specified range.
Measure the power
supply voltage.
Set the power supply
voltage within the
specified range.
–
The external regener-
ative resistance value
or regenerative
resistor capacity is too
small, or there has
been a continuous
regeneration state.
Check the operating
conditions or the
capacity using the
SigmaJunmaSize+
Capacity Selection
Software or other
means.
Change the regener-
ative resistance
value or capacity.
Reconsider the oper-
ating conditions
using the SigmaJun-
maSize+ Capacity
Selection Software
or other means.
*2
There was a contin-
uous regeneration
state because a nega-
tive load was continu-
ously applied.
Check the load
applied to the Servo-
motor during opera-
tion.
Reconsider the
system including the
servo, machine, and
operating conditions.
–
The setting of Pn600
(Regenerative
Resistor Capacity) is
smaller than the
capacity of the
External Regenerative
Resistor.
Check to see if a
Regenerative
Resistor is con-
nected and check
the setting of Pn600.
Correct the setting of
Pn600.
Ä Chap. 6.18
‘Setting the
Regenerative
Resistor
Capacity’
page 194
Sigma-7 Series SERVOPACKs
Maintenance
Alarm Displays > Troubleshooting Alarms
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