Parameter Setting; Actual Operation; Trouble At Start-Up - Mitsubishi Electric MR-J4 Instruction Manual

4. STARTUP

4.2.4 Parameter setting

In the position control mode, the servo amplifier can be used by merely changing the basic setting
parameters ([Pr. PA _ _ ]) mainly.
As necessary, set other parameters.

4.2.5 Actual operation

Start actual operation after confirmation of normal operation by test operation and completion of the
corresponding parameter settings. Perform a home position return as necessary.

4.2.6 Trouble at start-up

CAUTION
The following faults may occur at start-up. If any of such faults occurs, take the corresponding action.
(1) Troubleshooting
No. Start-up sequence
1 Power on
Alarm occurs.
POINT
The following encoder cables are of four-wire type. When using any of these
encoder cables, set [Pr. PC22] to "1 _ _ _" to select the four-wire type. Incorrect
setting will result in [AL. 16 Encoder initial communication error 1].
MR-EKCBL30M-L
MR-EKCBL30M-H
MR-EKCBL40M-H
MR-EKCBL50M-H
Never adjust or change the parameter values extremely as it will make operation
unstable.
POINT
Using the optional MR Configurator2, you can refer to reason for rotation failure,
etc.
Fault
The 5-digit, Not improved even if CN1, CN2
7-segment LED is and CN3 connectors are
not lit. disconnected.
The 5-digit,
Improved when CN1 connector is
7-segment LED
disconnected.
flickers.
Improved when CN2 connector is
disconnected.
Improved when CN3 connector is
disconnected.
Refer to chapter 8 and remove cause.
Investigation
1. Power supply voltage fault
2. The servo amplifier is
Power supply of CN1 cabling is
shorted.
1. Power supply of encoder
2. Encoder is malfunctioning.
Power supply of CN3 cabling is
shorted.
4 - 9
Possible cause
malfunctioning.
cabling is shorted.
Reference
Chapter 8
(Note)