Alarm Code Alarm Name Possible Cause Confirmation Correction Reference
A.080
(1080h)
Linear Encoder
Pitch Setting
Error
The setting of Pn282
(Linear Encoder Pitch)
has not been changed
from the default set-
ting.
Check the setting of
Pn282.
Correct the setting of
Pn282.
Ä
Chap. 6.6
‘Setting the
Linear Encoder
Pitch’ page 146
A.0b0
(10b0h)
Invalid Servo
ON Command
Alarm
The Servo ON com-
mand (Enable Opera-
tion command) was
sent from the host
controller after a utility
function that turns ON
the Servomotor was
executed.
– Turn the power
supply to the SER-
VOPACK OFF and
ON again. Or, exe-
cute a software
reset.
Ä
Chap. 7.11
‘Software Reset’
page 244
A.100
(1100h)
Overcurrent
Detected (An
overcurrent
flowed through
the power trans-
former or the
heat sink over-
heated.)
The Main Circuit
Cable is not wired cor-
rectly or there is faulty
contact.
Check the wiring. Correct the wiring.
Ä
Chap. 5.5
‘Wiring Servo-
motors’
page 107
There is a short-circuit
or ground fault in a
Main Circuit Cable.
Check for short-cir-
cuits across Servo-
motor phases U, V,
and W, or between
the ground and Ser-
vomotor phases U,
V, and W.
The cable may be
shortcircuited.
Replace the cable.
There is a short-circuit
or ground fault inside
the Servomotor.
Check for short-cir-
cuits across Servo-
motor phases U, V,
and W, or between
the ground and Ser-
vomotor phases U,
V, or W.
The Servomotor may
be faulty. Replace
the Servomotor.
There is a short-circuit
or ground fault inside
the SERVOPACK.
Check for short-cir-
cuits across the Ser-
vomotor connection
terminals U, V, and
W on the SERVO-
PACK, or between
the ground and ter-
minals U, V, or W.
The SERVOPACK
may be faulty.
Replace the SERVO-
PACK.
The Regenerative
Resistor is not wired
correctly or there is
faulty contact.
Check the wiring. Correct the wiring.
Ä
Chap. 5.4.6
‘Wiring Regen-
erative Resis-
tors’ page 103
The dynamic brake
(DB, emergency stop
executed from the
SERVOPACK) was
frequently activated,
or a DB overload
alarm occurred.
Check the power
consumed by the DB
resistor to see how
frequently the DB is
being used. Or,
check the alarm dis-
play to see if a DB
overload alarm
(A.730 or A.731) has
occurred.
Change the SERVO-
PACK model, oper-
ating methods, or the
mechanisms so that
the dynamic brake
does not need to be
used so frequently.
–
Sigma-7 Series SERVOPACKs
Maintenance
Alarm Displays > Troubleshooting Alarms
| | PROFINET Communications - SIEP YEUOC7P 02A Revision 0 | en | 600
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