2. TROUBLESHOOTING FOR MR-CV_POWER REGENERATION CONVERTER UNIT
2 - 7
2.5 Remedies for warnings
No.
Name/Description
Cause
Check method
Check result
Action
E9 Instantaneous
power failure
warning
[AL. 71] may
occur.
(1) An instantaneous power
failure has occurred for
30 ms or longer.
Check if the power
has a problem.
It has a problem.
Review the power.
EA External forced stop
warning
EM1 (forced stop)
of the power
regeneration
converter unit
was turned off.
(1) EM1 of the power
regeneration converter
unit was turned off.
Check the status of
EM1 of the power
regeneration
converter unit.
It is off.
Ensure safety and
turn on EM1 of the
power regeneration
converter unit.
It is on.
Check (2).
(2) The external 24 V DC
power supply is off.
Check if the external
24 V DC power supply
is inputted.
It is not inputted.
Input the 24 V DC
power supply.
It is inputted.
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.
EB Excessive
regeneration
warning
[AL. 73] may
occur.
(1) The regenerative load
ratio of the power
regeneration converter
unit has been over
80%.
Check the
regenerative load ratio
of the power
regeneration converter
unit.
It is 80% or more.
Reduce the
frequency of
positioning.
Reduce the load.
EC Overload
warning
[AL. 7E] may
occur.
Check it with the check method for [AL. 7E] and [AL. 7F].
EE Cooling fan speed
reduction warning
The cooling fan
speed decreased
to the warning
occurrence level
or less.
Check it with the check method for [AL. 72].
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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