1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
1 - 35
Alarm No.: 25
Name: Absolute position erased
Alarm content
The absolute position data is faulty.
Power was switched on for the first time in the absolute position detection system.
After the scale measurement encoder was set to the absolute position detection system, the power was
switched on for the first time.
Detail
No.
Detail name
Cause
Check method
Check result
Action
Target
25.1 Servo
motor
encoder -
Absolute
position erased
(1) Power was switched on
for the first time in the
absolute position
detection system.
Check if this is the
first time you switched
on the power in the
absolute position
detection system.
This is the first time. Check that the
battery is mounted
correctly, and make
home position return.
[A]
[B]
[WB]
[RJ010]
[GF]
This is not the first
time.
Check (2).
(2) 1) When an MR-
BAT6V1SET(-A)
battery or MR-
BT6VCASE battery
case was used, CN4
of the servo amplifier
was disconnected
during control circuit
power supply off.
2) When an MR-
BAT6V1BJ battery
for junction battery
cable was used, both
CN4 of the servo
amplifier and MR-
BAT6V1BJ battery
for junction battery
cable were
disconnected from
the MR-
BT6VCBL03M
junction battery
cable.
Check if the battery
was removed in this
way when the control
circuit power supply
was off.
It was removed.
Check that the
battery is mounted
correctly, and make
home position
return.
It was not removed. Check (3).
(3) 1) When an MR-
BAT6V1SET(-A)
battery or MR-
BT6VCASE battery
case was used, the
power was turned
off with the battery
disconnected from
CN4.
2) When an MR-
BAT6V1BJ battery
for junction battery
cable was used, the
power was turned off
with the battery
disconnected from
CN4 and MR-
BT6VCBL03M
junction battery
cable.
Check if the power
was turned off in this
state.
It was turned off.
Check that the
battery is mounted
correctly, and make
home position
return.
It was not turned off. MR-BAT6V1BJ
battery for junction
battery cable: Refer
to (4).
MR-BAT6V1SET(-A)
battery or MR-
BT6VCASE battery
case: Refer to (6).
(4) The encoder cable was
disconnected with the
MR-BAT6V1BJ battery
disconnected from MR-
BT6VCBL03M junction
battery cable.
Check if the encoder
cable was
disconnected in this
state.
It was disconnected. Check that the MR-
BAT6V1BJ battery is
connected to CN4
and MR-
BT6VCBL03M
junction battery
cable, and execute a
home position return.
[A]
[B]
[RJ010]
[GF]
It was not
disconnected.
Check (5).
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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