Point Table Setting; Actual Operation; Troubleshooting At Start-Up - Mitsubishi Electric MELSERVO-J4 Instruction Manual

4. HOW TO USE THE POINT TABLE

4.1.5 Point table setting

Set the data for operation to the point table. The following shows the items to be set.
Refer to section 4.2.2 for details of the point table.

4.1.6 Actual operation

Start actual operation after confirmation of normal operation by test operation and completion of the
corresponding parameter settings.

4.1.7 Troubleshooting at start-up

CAUTION
The following faults may occur at start-up. If any of such faults occurs, take the corresponding action.
"MR-J4-_A_" means "MR-J4-_A_(-RJ) Servo Amplifier Instruction Manual".
No. Start-up sequence
1 Power on
Alarm occurs.
2 Switch on SON Alarm occurs.
(Servo-on).
Servo motor shaft is
not servo-locked.
(Servo motor shaft is
free.)
Item
Position data Set the position data for movement.
Servo motor
Set the command speed of the servo motor for execution of positioning.
speed
Acceleration
Set the acceleration time constant.
time constant
Deceleration
Set the deceleration time constant.
time constant
Dwell Set the waiting time when performing automatic continuous operation.
Sub function Set when performing automatic continuous operation.
Outputs the first digit and the second digit of the M code in 4-bit binary
M code
respectively.
Never make a drastic adjustment or change to the parameter values as doing so
will make the operation unstable.
POINT
Using MR Configurator2, you can refer to the reason for rotation failure, etc.
Fault
LED is not lit. Not improved even if CN1, CN2,
and CN3 connectors are
LED flickers.
disconnected.
Improved when CN1 connector is
disconnected.
Improved when CN2 connector is
disconnected.
Improved when CN3 connector is
disconnected.
Refer to chapter 8 and remove the cause.
Refer to chapter 8 and remove the cause.
1. Check the display to see if the
servo amplifier is ready to
operate.
2. Check the external I/O signal
display (section 3.7) to see if
SON (Servo-on) is on.
Main description
Investigation
1. Power supply voltage fault
2. The servo amplifier is
malfunctioning.
Power supply of CN1 cabling is
shorted.
1. Power supply of encoder
cabling is shorted.
2. Encoder is malfunctioning.
Power supply of CN3 cabling is
shorted.
1. SON (Servo-on) is not input.
(wiring mistake)
2. 24 V DC power is not supplied
to DICOM.
4 - 5
Possible cause Reference
Chapter 8
(Note)
Chapter 8
(Note)
Section
3.7