SMC Networks LECSB2-T Series User Manual

8. TROUBLESHOOTING
8 - 56
8.5 Remedies for warnings
CAUTION
If [AL. E3 Absolute position counter warning] occurs, always make home position
setting again. Otherwise, it may cause an unexpected operation.
POINT
When any of the following alarms has occurred, do not cycle the power of the
driver repeatedly to restart. Doing so will cause a malfunction of the driver and
the servo motor. If the power of the driver is switched off/on during the alarms,
allow more than 30 minutes for cooling before resuming operation.
[AL. 91 Driver overheat warning]
[AL. E0 Excessive regeneration warning]
[AL. E1 Overload warning 1]
[AL. E2 Servo motor overheat warning]
[AL. EC Overload warning 2]
If [AL. E6], [AL. E7], or [AL. E9] occurs, the servo-off status is established. If any other warning occurs,
operation can be continued but an alarm may take place or proper operation may not be performed.
Remove the cause of warning according to this section. Use Setup software (MR Configurator2
TM
) to
refer to a factor of warning occurrence.
Alarm No.: 90
Name: Home position return incomplete warning
Alarm content
A home position return did not complete normally with the positioning function.
Detail
No.
Detail name
Cause
Check method
Check result
Action
90.1
Home position
return
incomplete
(1)
An automatic operation
was executed at home
position return
incompletion.
Check if the home
position return was not
executed (the following
devices are not off.).
ZP (Home position
return completion)
A home position
return
was not executed.
Execute a home position
return.
A home position
return
was executed.
Check (2).
(2)
A positioning operation
was executed without
home position setting
with absolute position
after [AL. 25 Absolute
position erased]
occurred.
Check if [AL. 25
Absolute
position erased]
occurred
using alarm history.
[AL. 25 Absolute
position erased]
occurred.
Check the battery
voltage and battery cable
if they have a failure and
execute a home position
return after remove the
failure.
[AL. 25 Absolute
position erased] did
not occur.
Check (3).
(3)
With the indexer method,
[AL. E3 Absolute
position counter warning]
Occurred simultaneously
with the alarm.
Check if [AL. 90.1]
occurred
simultaneously
with start of the
positioning operation.
[AL. 90.1] did not
occur simultaneously
with start of the
positioning operation
but occurred during
positioning operation.
Remove the cause of
[AL. E3], and perform
home position return.
(Check it with the check
method for [AL. E3].)
[AL. 90.1] occurred
simultaneously with
start of the
positioning operation.
Check (4).
(4)
ZP (Home position
return completion)
turned off after the
home position return
was executed.
Check if ZP (Home
position return
completion) is off.
ZP (Home position
return
completion) is off.
Check the conditions if
ZP (Home position return
completion) can be off.
(Positioning Mode)")

SMC Networks LECSB2-T Series Specifications

General

Brand	SMC Networks
Model	LECSB2-T Series
Category	DC Drives
Language	English