4.5.4.2 Installation procedure for Inductive Limit Switches (ILS)
Procedure
1. Open the positioner as described in Opening the standard and intrinsically safe version
(Page 52).
2. Remove the ribbon cable from the basic electronics.
3. Tighten the two fixing screws of the basic electronics. Remove the basic electronics.
4. Insert the Inductive Limit Switches (ILS) from the top to the upper printed circuit board guide
of the adapter.
5. Slide the Inductive Limit Switches (ILS) in the printed circuit board of the adapter approx.
3 mm to the right.
6. Screw the special screw ② through the Inductive Limit Switches (ILS) into the positioner
shaft. Tighten the special screw ② with a torque of 2 Nm.
Note
Pin in the actuating disk bearing
A pin ③ is pressed in the actuating disk bearing①.
1. Align pin ③ with the groove of the special screw before inserting the head of the special
screw ② into the actuating disk bearing ①.
2. Rotate the actuating disk bearing ① and the special screw ② simultaneously so that the
pin ③ is inserted into the groove of the special screw ②.
7. An insulating cover (yellow) is required over the Inductive Limit Switches (ILS). This
insulating cover is supplied with the Inductive Limit Switches (ILS). Place the insulating
cover on one side under the basic electronics seat of the rack. The recesses of the insulating
cover must fit in the corresponding webs of the rack. To tighten the insulating cover, bend
the walls of the adapter slightly outwards.
Firmly press the other end until the insulating cover is underneath the contact surface of the
basic electronics. The recesses of the insulating cover must fit in the corresponding webs
of the rack.
8. Place the basic electronics onto the four holders of the adapter.
9. Tighten the two fixing screws of the basic electronics. Tighten the screws.
10.Reestablish all electrical connections between the basic electronics and the option modules.
11.Connect the basic electronics with the option modules and the potentiometer. Use the
corresponding ribbon cables.
12.Put on the supplied module cover. Make sure that the ribbon cable is not trapped.
Note
Module cover
Do not use the standard module cover. The provided module cover has a larger recess.
13.Select the labels that are already available on the standard version of the module cover from
the label set provided. Affix the selected labels onto the installed module cover as per the
standard version.
Installing/mounting
4.5 Installing option modules
SIPART PS2 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E00074631-AE 63
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