Motor-Less Operation - Mitsubishi Electric MELSERVO J5 Series User Manual

Motor-less operation

• The motor-less operation cannot be used in the linear servo motor control mode or direct drive motor control
mode.
Without connecting a 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 can be used to check the sequence of a
controller. Use this operation after the forced stop has been released. Use this operation with the servo amplifier connected to
the controller.
To perform the motor-less operation, set [Pr. PC05.0 Motor-less operation selection] to "1" (enabled). To terminate the motor-
less operation, set [Pr. PC05.0] to "0" (disabled).
Load conditions
The operation is performed in the following conditions. Note that the conditions may differ from those of actual machines.
Load item
Load torque
Load to motor inertia ratio
Alarm
In the motor-less operation, some alarms and warnings are not generated. The following are examples of alarms which do not
occur.
• [AL. 016 Encoder initial communication error 1]
• [AL. 01E Encoder initial communication error 2]
• [AL. 01F Encoder initial communication error 3]
• [AL. 020 Encoder normal communication error 1]
• [AL. 021 Encoder normal communication error 2]
• [AL. 025 Absolute position erased]
• [AL. 092 Battery cable disconnection warning]
• [AL. 09F Battery warning]
Condition
0
[Pr. PB06 Load to motor inertia ratio/load to motor mass ratio]
4 STARTUP
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4.5 Test operation
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