Sharp CP-SR421 User Manual download pdf (Page 96)

4. STARTUP

4 - 17

4.5.2 Motor-less operation in controller

POINT

Use motor-less operation which is available by making the servo system

controller parameter setting.

Motor-less operation is done while connected with the servo system controller.

The motor-less operation using a controller is available with rotary servo motors

only. It will be available with linear servo motors and direct drive motors in the

future.

(1) Motor-less operation

Without connecting the servo motor, output signals or status displays can be provided in response to the

servo system controller commands as if the servo motor is actually running. This operation may be used

to check the servo system controller sequence. Use this operation with the forced stop reset. Use this

operation with the servo amplifier connected to the servo system controller.

To stop the motor-less operation, set the motor-less operation selection to "Disable" in the servo

parameter setting of the servo system controller. When the power supply is turned on next time, motor-

less operation will be disabled.

(a) Load conditions

Load item Condition

Load torque 0

Load to motor inertia ratio Same as the moment of inertia of the servo motor

(b) Alarms

The following alarms and warning do not occur. However, the other alarms and warnings occur as

when the servo motor is connected.

Alarm and warning

Rotary servo

motor

Linear servo

motor

Direct drive motor

Rotary servo motor

in fully closed loop

system (available

in the future)

[AL.16 Encoder initial communication error 1] ż ż ż ż

[AL.1E Encoder initial communication error 2] ż ż ż ż

[AL.1F Encoder initial communication error 3] ż ż ż ż

[AL.20 Encoder normal communication error 1 (serial

communication input)]

[AL.20 Encoder normal communication error 1 (ABZ

input)]

ż ż ż ż

[AL.21 Encoder normal communication error 2] ż ż ż ż

[AL. 25 Absolute position erased] ż ż ż

[AL. 28 Linear encoder error 2] ż ż

[AL. 2A Linear encoder error 1] ż ż

[AL. 2B Encoder counter error] ż

[AL. 92 Battery cable disconnection warning] ż ż ż

[AL. 9F Battery warning] ż ż ż

[AL. E9 Main circuit off warning] ż ż ż ż

[AL. 70 Load-side encoder error 1] ż

[AL. 71 Load-side encoder error 2] ż

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Sharp CP-SR421 User Manual Page 96

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