2. TROUBLESHOOTING FOR MR-CV_POWER REGENERATION CONVERTER UNIT
2 - 6
No.
Name/Description
Cause
Check method
Check result
Action
76 Switch setting error
The setting of the
rotary switch is
incorrect.
(1) The setting of the
rotary switch is
incorrect.
Check the setting of
the rotary switch.
The setting is
incorrect.
Set it correctly.
The setting is
correct.
Check (2).
(2) Forced stop is input
when the forced stop is
disabled with the rotary
switch.
Check the wiring for
the forced stop and
the setting of the
rotary switch.
The wiring for the
forced stop and the
setting of the rotary
switch are incorrect.
Check the wiring
and the setting of
the rotary switch.
The setting is
correct.
Check (3).
(3)
The
power
regeneration converter
unit is malfunctioning.
Replace the power
regeneration converter
unit, and then check
the repeatability.
It is not repeatable.
Replace the power
regeneration
converter unit.
77 Main circuit device
overheat
The inside of the
power
regeneration
converter unit
overheated.
(1) Ambient
temperature
has exceeded 55 °C.
Check the ambient
temperature.
It is over 55
˚
C.
Lower the ambient
temperature.
It is 55
˚
C or lower.
Check (2).
(2) 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 (3).
(3) 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 (4).
(4)
The
power
regeneration converter
unit is malfunctioning.
Replace the power
regeneration converter
unit, and then check
the repeatability.
It is not repeatable.
Replace the power
regeneration
converter unit.
7E Overload
1
The load ratio
exceeded the
overload
protection
characteristic of
the power
regeneration
converter unit.
(1) A current exceeding
the continuous output
current was applied to
the power regeneration
converter unit.
Check "Converter
effective load ratio"
with MR
Configurator2.
The effective load
ratio of the power
regeneration
converter unit is
high.
Reduce the load.
Check operation
pattern.
7F Overload
2
The load ratio
exceeded the
overload
protection
characteristic of
the power
regeneration
converter unit.
(1) A current exceeding
the short-term output
current was applied to
the power regeneration
converter unit.
Check "Converter
effective load ratio"
with MR
Configurator2.
The effective load
ratio of the power
regeneration
converter unit is
high.
Check operation
pattern.
Содержание MELSERVO MR-J4-B-RJ Series
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