Siemens 611 configurationmanual Check and set the rotor position identification

Commissioning

9.2 Procedure

Distance-coded measuring system (see also the incremental measuring system)

This measuring system is supported by the SIMODRIVE 611D as of FDD 6.07.07. For earlier software releases, multiple zero marks must be selected on an incremental basis.

Note

For non-Siemens motors, a rotor position identification routine to determine the commutation angle offset cannot be guaranteed. Depending on the motor design, the following may be used for both measuring systems:

∙The process based on saturation,

∙The process based on motion,

∙For an absolute measuring system: determination of the commutation angle offset by measurement.

At the end of commissioning, the commutation angle offset must be measured in order to check it.

8. Check and set the rotor position identification

To check the rotor position identification, you can use a test function to determine the difference between the calculated rotor position angle and that actually used by the closed- loop control. Proceed as follows:

● Start the test function several times and calculate the difference

Start	Set MD 1736 (rotor position identification test) to "1"
Difference	MD 1737 (rotor position identification difference)

=_ _ _ _ , _ _ _ _ , _ _ _ _ , _ _ _ _ , _ _ _ _

●Is the spread of the measured values lower than 10 electrical degrees? No: Increase MD 1019 (e.g. by 10%) and repeat the measurements

If the values are OK after having repeated the measurements, then the commutation angle offset can be re-determined as follows:

●For an incremental measuring system:

a)Incremental - one or more zero marks with output cam or distance-coded reference marks as of FDD 06.07.07:

as Point 7 (Determine the commutation angle offset).

b)Incremental – no zero mark or several zero marks:

Press "Save boot file" and "NCK reset"

●For an absolute measuring system: Switch off the drive (NCK reset)

With pulse or controller enable deactivated Set MD 1017 to 1, switch on the drive. Activate pulse and controller enables

→The angular offset is entered in MD 1016 automatically

→Alarm 300799 is output

→Save boot file, perform an NCK reset

180	1FW6 Built-in torque motors
	Configuration Manual, 05/2009, 6SN1197-0AD00-0BP7