Siemens sinumerik fm-nc - Page 164

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Parameters to the Control and the PLC Pro
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6.10 Linear motors (1FN1 and 1FN3 motors)
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SINUMERIK 840D Installation and Start-Up Guide (IAD) – 04.00 Edition
8. Determine the commutation angle offset of motor 2
– With an incremental measuring system:
(see Section 6.10.2, point 7: “Determine the commutation angle offset”)
– With an absolute measuring system:
Switch off the drive (NCK reset)
Switch on the drive with pulse or controller enabling signals inhibited
Set MD 1017 = 1
Activate pulse and controller enabling signals
––> The angle offset is automatically entered in MD 1016
––> Alarm 300799 is output
Save bootfile and then NCK reset
9. Traverse axis and perform function check.
(Section 6.10.2, point 9.)
10. Note commutation angle offset of motor 2
– MD 1016 (motor 2) = _ _ _ _ _ _ _ _ degrees electrical
11. Deviation between point 4. (motor 1) and point 10. (motor 2)
if  10 degrees ––>OK
if  10 degrees ––> Check and correct mechanical assembly
(see Section 6.10.4 und 6.10.7)
Delete motor data of single motor ––> delete bootfile
12. Switch off and wait until DC link has discharged
13. Set up parallel connection of the 2 linear motors again
Connect both motors to the power section again.
14. Switch on motors with pulse and controller enabling signals inhibited
15. Start-up of paralleled linear motors
– Carry out the complete start-up procedure described in Section 6.10.2
– Select the paralleled motor (2x1FN...) in the “Motor selection”
dialog
or:
enter the data for the paralleled unlisted motor (as described under sub-
heading “Unlisted motor – parameters for SLM”).
16. Compare commutation angle offset between motors 1 and 2
– Check motor cable connection on power section,
adjust if necessary and determine the commutation angle offset.
– With an incremental or absolute measuring system:
Refer to Section 6.10.2, point 7. (Determine the commutation angle off-
set).
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