3. TROUBLESHOOTING FOR MR-CR55K(4) RESISTANCE REGENERATION CONVERTER UNIT
3 - 4
No.
Name/Description
Cause
Check method
Check result
Action
19 Memory error 3
(Flash-ROM)
A part (Flash-
ROM) in the
resistance
regeneration
converter unit is
failure.
(1) The Flash-ROM is
malfunctioning.
Disconnect the cables
except for the control
circuit power supply,
and then check the
repeatability.
It is repeatable.
Replace the
resistance
regeneration
converter unit.
It is not repeatable.
Check (2).
(2) Something near the
device caused it.
Check the noise,
ambient temperature,
etc.
It has a failure.
Take
countermeasures
against its cause.
30 Regenerative
error
Permissible
regenerative
power of the
regenerative
resistor
(regenerative
option) is
exceeded.
The regenerative
resistor is
malfunctioning.
A regenerative
transistor in the
resistance
regeneration
converter unit is
malfunctioning.
(1) The setting of the
regenerative resistor
(regenerative option) is
incorrect.
Check the
regenerative resistor
(regenerative option)
and [Pr. PA01] setting
value.
The setting value is
incorrect.
Set it correctly.
It is set correctly.
Check (2).
(2)
The
regenerative
resistor (regenerative
option) is not
connected.
Check if the
regenerative resistor
(regenerative option)
is connected
correctly.
It is not connected
correctly.
Connect it correctly.
It is connected
correctly.
Check (3).
(3) The combination of the
regenerative resistor
(regenerative option)
and resistance
regeneration converter
unit is incorrect.
Check if the
regenerative resistor
(regenerative option)
and the resistance
regeneration converter
unit are connected in
the specified
combination.
The combination is
incorrect.
Use them in the
correct combination.
The combination is
correct.
Check (4).
(4) Power supply voltage
high.
Check if the voltage
of the input power
supply is over the
prescribed value.
200 V class: 260 V AC
400 V class: 520 V AC
It is higher than the
prescribed value.
Reduce the power
supply voltage.
It is at the
prescribed value or
lower.
Check (5).
(5) The regenerative load
ratio exceeded 100%.
Check the
regenerative load
ratio when alarm
occurs.
It is 100% or more.
When the
regenerative option
is used.
Reduce the
frequency of
positioning.
Reduce the load.
Review the
regenerative
option capacity.
When the
regenerative option
is not used.
Use the
regenerative
option.
It is less than 100%. Check (6).
(6) Wire breakage of the
regenerative resistor
(regenerative option).
Measure the
resistance of the
regenerative resistor
(regenerative option).
The resistance is
abnormal.
Replace the
regenerative
resistor
(regenerative
option).
The resistance is
normal.
Check (7).
(7) Failure of the detection
circuit in the resistance
regeneration converter
unit.
Check if the
regenerative resistor
(regenerative option)
is overheating.
It is overheating
abnormally.
Replace the
resistance
regeneration
converter unit.
It is not overheating
abnormally.
Check (8).
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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