Lenze 9400 Manual de usuario descargar pdf (Pagina 228)

5 Motor interface

5.9 Monitoring

228

Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06

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5.9.4.2 Checking the individual motor phases before operation is started

This function is available from software version V5.0!

From software version V5.0 a check via test signal application has been added. It injects a current

into the machine before the actual operation is started, by means of which both a motor phase

failure and the existence of the motor are checked. Only after the check has been carried out

successfully, the actual operation is continued.

• The setpoint current amplitude corresponds to the lower of the two following values:

• The test signal application is activated directly after controller enable if the following conditions

are fulfilled:

•In C00597

a response other than "No response" is set.

• No test mode is activated (C00398

= 0).

• No identification procedure is active

(by device command C00002

= "51", "52", "71" or "72").

• The check actuates the response set in C00597

if one or more motor phase currents have not

reached a certain threshold value within 5 ms after controller enable.

• The threshold value depends on the device power and cannot be parameterised.

• If only one motor phase current does not reach the threshold value, "Motor phase U/V/W not

available" is entered in the logbook.

• If several motor phases do not reach the threshold value, the motor is considered as not

connected, and "Motor not connected" is entered in the logbook.

• The check is completed successfully if all three motor phase currents have exceeded the

threshold value. Then the actual operation is continued immediately.

or

 Note!

• As the check is cancelled immediately if all three motor phase currents have exceeded

the threshold value, the setpoint current usually is not achieved.

• In order to be able to achieve the threshold value used for the check, the rated motor

current must at least be 10 % of the maximum device current (display in C00789

).

• This monitoring is independent of the further rotation of the commutation angle.

50 % 2 Rated device current⋅⋅

50 % 2 Rated motor current⋅⋅

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