1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
1 - 59
Alarm No.: 52
Name: Error excessive
Alarm content
Droop pulses have exceeded the alarm occurrence level.
Detail
No.
Detail name
Cause
Check method
Check result
Action
Target
52.1 Excess
droop
pulse 1
(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.
[A]
[B]
[WB]
[RJ010]
[GF]
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
electromagnetic
brake has not released.
(The electromagnetic
brake has been
activated.)
Check if
electromagnetic
brake is released.
It is not released.
Release the
electromagnetic
brake.
It is released.
Check (7).
(7) The torque is
insufficient.
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 (8).
(8) 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 (9).
(9)
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 (10).
(10) The position loop gain
is small.
Increase the position
loop gain, and then
check the
repeatability.
It is not repeatable.
Increase the
position loop gain
([Pr. PB08]).
It is repeatable.
Check (11).
(11) The error excessive
alarm level was not set
correctly.
Check the setting of
the error excessive
alarm level.
[A]: [Pr. PC24], [Pr.
PC43]
[B] [WB] [RJ010] [GF]:
[Pr. PC01], [Pr. PC06]
It is not set correctly. Set it correctly.
It is set correctly.
Check (12).
Содержание MELSERVO MR-J4-B-RJ Series
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Страница 137: ...1 TROUBLESHOOTING FOR SERVO AMPLIFIER DRIVE UNIT 1 130 MEMO ...
Страница 145: ...2 TROUBLESHOOTING FOR MR CV_POWER REGENERATION CONVERTER UNIT 2 8 MEMO ...
Страница 155: ...3 TROUBLESHOOTING FOR MR CR55K 4 RESISTANCE REGENERATION CONVERTER UNIT 3 10 MEMO ...
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