Motor-Less Operation In Controller - Mitsubishi Electric MELSERVO-J4 Series Instruction Manual

Motor-less operation in controller

• Connect the controller to the servo amplifier before the motor-less operation.
• The motor-less operation cannot be used in the fully closed loop control mode, linear servo motor control
mode, or DD motor control mode.
Motor-less operation
Without connecting the servo motor to the servo amplifier, output signals or status displays can be provided in response to the
controller commands as if the servo motor is actually running. This operation may be used to check the controller sequence.
Use this operation with the forced stop reset. Use this operation with the servo amplifier connected to the controller.
To stop the motor-less operation, set "Disabled (_ _ _ 0)" of "Motor-less operation selection" in [Pr. PC05]. The motor-less
operation will be disabled from the next power-on.
■Load conditions
Load item
Load torque
Load to motor inertia ratio
■Alarms
The following alarms and warning do not occur. However, the other alarms and warnings occur as when the servo motor is
connected.
• [AL. 16 Encoder initial communication error 1]
• [AL. 1E Encoder initial communication error 2]
• [AL. 1F Encoder initial communication error 3]
• [AL. 20 Encoder normal communication error 1]
• [AL. 21 Encoder normal communication error 2]
• [AL. 25 Absolute position erased]
• [AL. 92 Battery cable disconnection warning]
• [AL. 9F Battery warning]
Operation procedure
1.
Set the servo amplifier to the servo-off status.
2.
Set [Pr. PC05] to "_ _ _ 1", turn "OFF (down)" the test operation select switch (SW1-1), and then turn on the power
supply.
ON
1 2
3.
Start the motor-less operation with the controller.
The display shows the following screen.
The decimal point blinks.
4 STARTUP
142
4.5 Test operation mode
Condition
0
[Pr. PB06 Load to motor inertia ratio/load to motor mass ratio]
ON
1 2
Set SW1-1 to "OFF (down)".