4 STARTUP
4.5 Test operation mode
53
4
Motor-less operation in controller
• Connect the master station (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 a servo motor connected to the servo amplifier, signals are outputted and status is displayed as if the servo motor is
actually running in response to the master station. This operation can be used to check the sequence of a master station
(controller). Use this operation with the forced stop reset. Use this operation with the servo amplifier connected to the master
station (controller).
To terminate 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
■
Alarms
The following alarms and warnings 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", set SW1-1 to "OFF (down)" and SW1-2 to "ON (up)", and then turn on the power supply.
3.
Start the motor-less operation with the master station (controller).
The display shows the following screen.
Load item
Condition
Load torque
0
Load to motor inertia ratio
[Pr. PB06 Load to motor inertia ratio/load to motor mass ratio]
1
ON
2
1
ON
2
Set SW1-1 to "OFF (down)" and SW1-2 to "ON (up)".
The decimal point blinks.
