Mitsubishi Electric MELSERVO MR-J4-B-RJ Series, Инструкция по эксплуатации

Страница: 61 / 174

1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
1 - 54
Alarm No.: 42 Name: Fully closed loop control error detection (during fully closed loop control)
Alarm content A fully closed loop control error has occurred.
Detail
No.
Detail name Cause Check method Check result Action Target
42.9 Fully closed
loop control
error by speed
deviation
(1) The resolution of the
load-side encoder
setting differs from the
setting value.
Check the setting of
[Pr. PE04] and [Pr.
PE05]. The setting is
incorrect. Set it correctly. [A]
[B]
[WB]
[GF]
The setting is
correct. Check (2).
(2) The direction of
mounting load-side
encoder is incorrect.
Check the mounting
direction of the load-
side encoder. The mounting
direction is incorrect. Mount it correctly.
Review the "encoder
pulse count polarity
selection" setting of
the parameter as
required.
[A]: [Pr. PC45]
[B] [WB] [GF]:
[Pr. PC27]
The mounting
direction is correct.
Check (3).
(3) The speed deviation
exceeded the detection
level.
Calculate the deviation
between the speed
command and actual
speed. The deviation is
large. Review the operation
status. Review the
[Pr. PE06] setting
depending on
circumstances.
42.A Fully closed
loop control
error by position
deviation during
command stop
Check it with the check method for [AL. 42.8].
Alarm No.: 45 Name: Main circuit device overheat
Alarm content Inside of the servo amplifier overheated.
Detail
No.
Detail name Cause Check method Check result Action Target
45.1 Main circuit
device overheat
error 1
(1) Ambient temperature
has exceeded 55 ˚ C.
Check the ambient
temperature. It is over 55 ˚ C. Lower the ambient
temperature. [A]
[B]
[WB]
[RJ010]
[GF]
It is less than 55 ˚ C. Check (2).
(2) The close mounting is
out of specifications.
Check the
specifications of close
mounting. It is out of
specifications. Use within the range
of specifications.
It is within
specifications. Check (3).
(3) Turning on and off
were repeated under
the overload status.
Check if the overload
status occurred many
times. It occurred. Check operation
pattern.
It did not occur. Check (4).
(4) A cooling fan, heat sink,
or openings is clogged
with foreign matter.
Clean the cooling fan,
heat sink, or openings,
and then check the
repeatability. It is not repeatable. Clean it periodically.
It is repeatable. Check (5).
(5) The servo amplifier is
malfunctioning.
Replace the servo
amplifier, and then
check the
repeatability. It is not repeatable. Replace the servo
amplifier.
45.2 Main circuit
device overheat
error 2
(1) Check it with the check method for [AL. 45.1].