Lenze E94AxPExxxx - Manual (Page 446)

12 Basic drive functions
12.5 Manual job, encoderless
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Lenze · 9400 Servo PLC· Reference manual · DMS 4.0 EN · 11/2013 · TD05/06
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12.5 Manual job, encoderless
The basic function "Manual jog (OL)", which is implemented in the motor control system of the drive
controller, enables the user to operate the drive without control (i.e. "open loop", encoderless) and
independently of the selected operating mode:
• If the motor is asynchronous, the speed depends on the load.
• A synchronous motor turns with a prescribed field frequency.
The basic function "Manual jog (OL)"
• is based on the I-rotation test mode and is especially suitable for the operation of synchronous
motors. There is a corresponding dialog box in »Engineer«
• is not identical with sensorless operation of synchronous machines. In the basic function
"Manual jog (OL)", neither parameters relevant to the motor model nor parameters relevant to
the motor type are used
• can be activated and controlled by means of process data (system block inputs) or by accessing
codes (e.g. via keypad).
Uses of "Manual job, encoderless"
• Test of hardware (e.g. connection system, rotating field and motor cables) during initial
commissioning and during servicing
• Movement of the drive or machine to a service position in the event of defective encoder
feedback
• Functional test of the discretely structured feedback system of a torque or linear motor.
• Support for
Pole position identification ( 176) in the case of torque and linear motors by means
of
• movement to a machine position in which pole position identification can be carried out in a
reproducible manner and
• setting of the pole position angle with the "PL touch probe signal"

Danger!
In this basic function, the extent of the useable operating modes of the holding brake is
restricted. Only the following operating modes function:
• Directly with brake module ( C02580, selection 1 ) and
• Direct switching externally ( C02580, selection 11 )

Stop!
It is only permissible to activate controlled operation of synchronous machines if the
following parameters have been set correctly, in addition to correct assignment of the
encoder image and the motor's rotating field:
• Motor control SC, "Servo control of sync motor" ( C00006, selection 1 )
• Pole position of the motor encoder ( C00058 )
• Motor data ( C00081 ... C00091 )
• Active resolver feedback or encoder feedback as motor encoder ( C00420 ... C00422 )