Motor-Less Operation; Output Signal (Do) Forced Output - Mitsubishi Electric MELSERVO-JET MR-JET-G-N1 Series User Manual

Motor-less operation

Without connecting the servo motor to the servo amplifier, output signals can outputted and status display can be provided in
response to the controller command, 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. Examples of the alarms which do not occur are
shown as follows.
• [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]

Output signal (DO) forced output

Output signals can be switched on/off forcibly regardless of the servo status. Use this function for checking output signal
wiring and others. Operate this function on the DO forced output screen of MR Configurator2.
Clicking each signal on/off enables the operation of output signal on/off. After checking, click "Test Operation Mode Cancel"
and terminate the output signal (DO) forced output.
4 STARTUP
38
4.5 Test operation
Condition
0
[Pr. PB06 Load to motor inertia ratio/load to motor mass ratio]