SMC Networks LECSB2-T Series User Manual

8. TROUBLESHOOTING
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reached by using the
JOG operation or
manual pulse generator
operation.
operation or manual
pulse generator
operation was
executed properly to
the operation range.
of operation range.
software limit.
Adjust properly the
parameters such as JOG
speed and multiplication
of the manual pulse as
necessary.
98.2
Reverse
rotation-side
software stroke
limit reached
Check it with the check method for [AL. 98.1].
Alarm No.: 99
Name: Stroke limit warning
Alarm content
The stroke limit signal is off.
Detail
No.
Detail name
Cause
Check method
Check result
Action
99.1
Forward
rotation stroke
end off
(1)
The forward rotation
stroke limit switch is
connected to LSP.
Check if the limit switch
is connected
correctly.
It is not connected.
Connect it correctly.
It is connected.
Check (2).
It turned off.
Check operation attern.
(2)
The forward rotation
stroke end was
exceeded during driving.
Check if the forward
rotation stroke limit
switch turned off.
It is not connected.
Set the point table
correctly.
It is connected.
Check (3).
99.2
Reverse
rotation stroke
end off
(1)
The reverse rotation
stroke limit switch is
connected to LSN.
Check if the limit switch
is connected
correctly.
It is not connected.
Connect it correctly.
It is connected.
Check (2).
(2)
The reverse rotation
stroke end was
exceeded during driving.
Check if the reverse
rotation stroke limit
switch turned off.
It turned off.
Check operation pattern.
Alarm No.: 9B
Name: Error excessive warning
Alarm content
・
Droop pulses have exceeded the warning occurrence level.
Detail
No.
Detail name
Cause
Check method
Check result
Action
9B.1
Excess droop
pulse 1 warning
(1)
The servo motor power
cable was
disconnected.
Check the servo motor
power cable.
It is disconnected.
Repair or replace the
servo motor power cable.
It is not
disconnected.
Check (2).
(2)
The connection of the
servo motor is incorrect
Check the wiring of
U/V/W.
It is incorrect.
Connect it correctly.
It is correct.
Check (3).
(3)
The connection of the
encoder cable is
incorrect.
Check if the encoder
cable is connected
correctly.
It is incorrect.
Connect it correctly.
It is correct.
Check (4).
(4)
The torque limit has
been enabled.
Check if the limiting
torque is in progress.
The limiting torque is
in progress.
Increase the torque limit
value.
The limiting torque is
not in progress.
Check (5).
(5)
A moving part collided
against the machine.
Check if it collided.
It collided.
Check operation pattern.
It did not collide.
Check (6).
(6)
The torque isinsufficient.
Check the peak load
Ratio
The torque is
saturated.
Reduce the load or
review the operation
pattern. Or use a larger
capacity motor.
The torque is not
saturated.
Check (7).
(7)
Power supply voltage
dropped.
Check the bus voltage
value.
The bus voltage is
low
Check the power supply
voltage and power
supply capacity.
The bus voltage is
high.
Check (8).
(8)
Acceleration/
deceleration time
constant is too short.
Set a longer
deceleration time
constant, and then
check the
repeatability.
It is not repeatable.
Increase the
acceleration/deceleration
time constant.
It is repeatable.
Check (9).

SMC Networks LECSB2-T Series Specifications

General

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