Siemens SIMOTRAS 6SG7050, Operating Instructions Manual

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01.04 Installation
SIEMENS AG 6SG7000-0BA76
5-13
SIMOTRAS HD Operating Instructions
How to fit the pulse encoder
•
Fit connecting pin to the centre on the non-drive end of the motor shaft.
•
Screw in the connecting pin with an application of screw locking compound. The pin must not
cause any “wobble” when the shaft is rotating.
•
The connecting pin must not show signs of any burr before attaching the pulse encoder as
otherwise the pin will not fit into the hollow shaft on the encoder.
•
Undo the pointed screws and fit the pulse encoder onto the pin as shown in the assembly
diagram.
Caution:
Do not use force! Fit the pulse encoder without using force as otherwise the supports on
the encoder may be damaged.
•
The encoder must not be connected to the motor housing. Do not put any screws into the fixing
holes!
Note:
The motor shaft may move in an axial direction as the motor accelerates and
decelerates; this will cause the shaft to push itself out of the motor bearing. For this
reason, there must be no fixed connection between the encoder and the motor housing.
•
Position the pulse encoder and fix to the motor shaft using the two pointed screws. The
encoder should now be “floating” without exerting any pressure on the connecting pin.
•
Check that the pulse encoder is attached in such a way that the connecting cable is suspended
and can move freely.
•
Feed the connecting cable through a clip as far down as possible in order to prevent left/right
movements. The cable should be able to move up and down.
•
As the pulse encoder can move freely, rocking movements along the axial and radial axes can
be compensated. These rocking movements have no effect on the actual speed measuring
process.