SMC Networks LECSN-T Series - 8.5 Remedies for warnings

8. TROUBLESHOOTING
8 - 54
8.5 Remedies for warnings
CAUTION
If [AL. E3 Absolute position counter warning] occurs, always make the home
position setting again. Otherwise, it may cause an unexpected operation.
POINT
When any of the following warnings occurs, do not cycle the power of the driver
repeatedly to restart. Doing so will cause a malfunction of the driver and servo
motor. If the power of the driver is switched off/on during the warnings, 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]
Warnings (except [AL. F0 Tough drive warning]) are not recorded in the alarm
history.
If [AL. E6] or [AL. E9] occurs, the amplifier will be the servo-off status. If any other warning occurs, operation
can be continued but an alarm may occur and proper operation may not be performed.
Refer to this section and remedies for warnings, remove the cause of a warning. Use Setup software (MR
Configurator2
TM
) to refer to the cause 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)")