HEIDENHAIN MANUALplus 620 Technical Manual page 848

6.16.7 Activating and deactivating position control loops
Opening the
position control
loop
848
The following figure shows the procedure for switching on the drive motor and
activating the position control loop as well as the procedure for opening the
position control loop and deactivating the drive.
PLC operand / Description
NN_AxDriveReady
Axis drive is ready
0: Drive not ready for operation
1: Drive ready for operation
PP_AxDriveOnRequest
Switch axis drive on
0: Do not activate the drive
1: Activate the drive
NN_AxDriveOn
Axis drive is switched on (and is at least speed-
controlled)
0: Drive is off
1: Drive is on
PP_AxPosControlRequest
Position-control the axis
0: No position feedback control for axis
1: Position feedback control for axis
NN_AxPosControl
Axis in position feedback control
0: Axis not in position feedback control
1: Axis in position feedback control
HEIDENHAIN Technical Manual MANUALplus 620
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