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Siemens SIPART PS2 6DR52xx User Manual

Page 47

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Preparing for Operation

47

SIPART PS2 Manual

A5E00074631--06

Procedure

After you have installed the positioner and put it fully into operation, you

can set the torque for the friction clutch as follows:

S

On the module cover, insert an ordinary 4 mm wide screwdriver into

a slot on the yellow wheel.

S

Now use the screwdriver to move the yellow wheel to the left, until

you can feel that it clicks in. This increases the torque of the friction

clutch.

S

You can recognize a locked friction clutch by an approx. 1 mm wide

gap between the yellow and black wheels.

S

If you have to set the zero pint e.g. after exchanging the actuator,

first reduce the torque by turning the yellow wheel to the right until

you hit the stop. After setting the zero point, you can refix the friction

clutch as described above.

Starting from the neutral setting (as delivered), you can lock the trans-

mission ratio selector as follows:

S

Adjust the yellow wheel underneath the terminals with an ordinary

4 mm wide screwdriver to correspond to the setting that you would

like (33_ or 90_), turning to the left or right, until you can feel that it

clicks in.

S

Please note that you can only adjust the transmission ratio selector

after releasing the fixing.

For this reason you first have to put the yellow ring into the neutral

position, if you have to adjust the transmission ratio selector

e.g. after exchanging the actuator).

33

90

(1)

(3)

(2)

(4)

33_

90_

(1)

Transmission ratio selector interlock

(2)

Open

(3)

Friction clutch

(4)

Close

Figure 3-6

Locking and fixing mechanisms

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