Mitsubishi Electric MELSERVO-J4 Instruction Manual page 27

1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
Alarm No.: 11 Name: Switch setting error
Alarm content
Detail
Detail name
No.
11.1 Axis number (1) The setting of the axis
setting error
Station number (2) The station number is
setting error
11.2 Disabling (1) The setting of the
control axis
setting error
Alarm No.: 12 Name: Memory error 1 (RAM)
Alarm content
Detail
Detail name
No.
12.1 RAM error 1 (1) A part in the servo
(2) Something near the
12.2 RAM error 2 Check it with the check method for [AL. 12.1].
12.3 RAM error 3
12.4 RAM error 4
12.5 RAM error 5
12.6 RAM error 6
The setting of the axis selection rotary switch or auxiliary axis number setting switch is incorrect.
The setting of the disabling control axis switch is incorrect.
The setting of the station number selection rotary switch is incorrect.
Cause
Check the settings of
No. is incorrect. the auxiliary axis
number setting
switches (SW2-
5/SW2-6) and axis
selection rotary switch
(SW1).
Check the settings of
set to a value other the station number
than "1" to "120" with selection rotary
the station number switches (SW2/SW3).
selection rotary switch.
Check the setting of
disabling control axis the disabling control
switch is incorrect. axis switch.
A part (RAM) in the servo amplifier is failure.
Cause
Disconnect the cables
amplifier is failure. except for the control
circuit power supply,
and then check the
repeatability.
Check the power
device caused it. supply for noise.
Check method Check result
When both of the
auxiliary axis
number setting
switches are on,
check the axis
selection rotary
switch if "F" is
selected for MR-
J4W2, ("E" or "F" is
selected for MR-
J4W3).
Both of the auxiliary
axis number setting
switches are off.
The setting of the
station number
selection rotary
switch is set to "0"
or "121" or more.
The station number
is set to a value from
"1" to "120" with the
station number
selection rotary
switch.
Check if the setting
is as follows.
1) Only A-axis is
disabled.
2) Only B-axis is
disabled.
3) A-axis and B-axis
are disabled.
4) A-axis and C-axis
are disabled.
5) All axes are
disabled.
The setting is other
than above.
Check method Check result
It is repeatable.
It is not repeatable.
It has a failure.
1 - 20
Action Target
Set the axis No. [WB]
correctly.
Replace the servo
amplifier.
Set the station [GF]
number correctly.
Replace the servo
amplifier.
Set it correctly. [WB]
Replace the servo
amplifier.
Action Target
Replace the servo [A]
amplifier. [B]
[WB]
Check (2).
[RJ010]
[GF]
Take
countermeasures
against its cause.