LNS QUICK LOAD SERVO S3 T BARFEED, Service Manual

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TROUBLESHOOTING
SERVICE MANUAL – QL Servo S3-T
Display Error name Definition Cause Action
AL.96 Home position
setting warning
Home position
setting could not be
made.
1. Droop pulses remaining are
greater than the in-position range
setting
Remove the cause of
droop pulse occurrence
2. Command pulse entered after
clearing of droop pulses.
Do not enter command
pulse after clearing of
droop pulses.
3. Creep speed high. Reduce creep speed.
AL.98 Software limit
warning
Software limit set in
parameter is
reached.
1. Software limit was set within
actual operation range.
Set parameter No. 48 to
51 correctly.
2. Point table of position data in
excess of software limit was
executed.
Set point table correctly.
3. Software limit was reached
during JOG operation or manual
pulse generator operation.
Perform operation within
software limit range.
AL.9F Battery warning Voltage of battery
for absolute position
detection system
reduced.
Battery voltage fell to 3.2V or
less.
Change the battery.
AL.E0 Excessive
regenerative
warning
There is a pos-
sibility that regen-
erative power may
exceed permissible
regenerative power
of built-in
regenerative brake
resistor or
regenerative brake
option.
Regenerative power increased to
85% or more of permissible
regenerative power of built-in
regenerative brake resistor or
regenerative brake option.
Checking method
Call the status display and check
regenerative load ratio.
1. Reduce frequency of
positioning.
2. Change regenerative
brake option for the one
with larger capacity.
3. Reduce load.
AL.E1 Overheat
warning
There is a
possibility that
overload alarm 1 or
2 may occur.
Load increased to 85% or more
of overload alarm 1 or 2
occurrence level.
Cause, checking method
Refer to AL.50,51.
Refer to AL.50, AL.51.
AL.E3 Absolute
position counter
warning
Absolute position
encoder pulses
faulty.
1. Noise entered the encoder. Take noise suppression
measures.
2. Encoder faulty. Change servo motor.
AL.E6 Servo
emergency stop
warning
EMG-SG are open. External emergency stop was
made valid.
(EMG-SG opened.)
Ensure safety and
deactivate emergency
stop.
AL.E9 Main circuit off
warning
Servo was switched
on with main circuit
power off.
Switch on main circuit
power.