SMC Networks LECSB2-T Series User Manual

8. TROUBLESHOOTING
8 - 58
Alarm No.: 92
Name: Battery cable disconnection warning
Alarm content
Battery voltage for absolute position detection system decreased.
Detail
No.
Detail name
Cause
Check method
Check result
Action
92.1
Encoder battery
cable
disconnection
warning
(1)
1) When a battery was
used, the battery was not
connected to CN4.
Check if the
battery is
connected
correctly.
It is not connected.
Connect it correctly.
It is connected.
Check (2).
(2)
A battery cable was
disconnected.
Check if the
battery cable
is
malfunctioning.
It has a failure.
Replace or repair the
cable.
It has no failure.
Check (3).
(3)
The battery voltage is
low. The battery is
consumed.
Check the battery
voltage with a
tester.
It is less than 3.1 V DC.
Replace or repair the
cable.
It is 3.1 V DC or more.
Replace the battery.
(4)
An encoder cable was
disconnected.
Check if the
encoder
cable is
disconnected.
It is disconnected.
Replace or repair the
cable.
92.3
Battery
degradation
(1)
The battery voltage is
low. The battery is
consumed
Check the battery
voltage with a
tester.
It is less than 3.0 V DC.
Replace the battery.
It is 3.0 V DC or more.
Check (2).
(2)
The battery has
deteriorated.
Replace the
battery, and
then check the
It is not repeatable.
Replace the battery.
Alarm No.: 93
Name: ABS data transfer warning
Alarm content
ABS data were not transferred.
Detail
No.
Detail name
Cause
Check method
Check result
Action
93.1
ABS data
transfer
requirement
warning during
magnetic pole
detection
(1)
The Z-phase was not
turned on at servo-on.
Check if the
position within
one-revolution is
"0".
It is "0". (The Z-phase
was not turned on.)
Turn on the Z-phase and
disable the magnetic
pole detection. Always
make home position
setting again.
It is other than "0". (The
Z-phase was turned on.)
Check (2).
(2)
The magnetic pole
detection was executed.
Check if the ABS
data is
transferred
during the
magnetic pole
detection.
The ABS data is
transferred.
Disable the magnetic
pole detection. After that,
cycle SON (Servo-on)
and transfer the ABS
data.
Alarm No.: 95
Name: STO warning
Alarm content
・STO input signal turns off while the servo motor stops.
・A diagnosis of input devices was not executed.
・
The safety observation function was enabled in the test mode.
Detail
No.
Detail name
Cause
Check method
Check result
Action
95.1
STO1 off
detection
(1)
STO1 is not inputted
correctly.
Check if the STO1 of
CN8 connector is wired
correctly.
It is not wired
correctly.
Wire it correctly. (When
not using the STO
function, attach the
shortcircuit connector came
with the driver to
CN8.)
It is wired correctly.
Check (2).
(2)
STO1 was turned off
(enabled) under the
following speed
conditions.
1) Servo motor speed:
50 r/min or less
Check if STO1 is off
(enabled).
It is off (enabled).
Turn on STO1 (disabled).

SMC Networks LECSB2-T Series Specifications

General

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