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SIPART PS2 PA Manual
A5E00127926--05
7.
Place the insulating cover (10) over the mechanical limit switch
module underneath the surface of the motherboard onto the con-
tainer on the wall. The recesses in the insulating cover must slot
into the corresponding lugs on the container wall. Place the insula-
ting cover on the mechanical limit switch module by carefully ben-
ding the container walls.
8.
Snap the motherboard board into the four holders and screw it tight
again with the two fixing screws (2.1).
9.
Make sure all electrical connections between the motherboard and
the options using the ribbon cables provided and between the mo-
therboard and potentiometer using the potentiometer cable.
10. Fix the enclosed module cover (1) instead of the standard version
using the two screws (1.1).
NOTE
To prevent premature wearing of the fixture by the self--tapping screws
(1.1), the following method of mounting the module cover (1) has pro-
ven effective:
Turn the screws counterclockwise until you feel them snap into the
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thread.
Tighten both screws carefully in a clockwise direction
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NOTE
Before connecting up the limit contact module, ensure that:
only qualified personnel connect and set the limit contact module.
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all cables are de--energized.
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the cables are stripped so that the insulation is flush with the termi-
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nal when plugging in the wires.
the ends of stranded wires have sleeves
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the connection cables are insulated according to the permitted cur-
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rent load.
the permissible working temperature of the cables exceeds the ma-
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ximal ambient temperature by minimum 25 _C.
the Ex--version is only allowed to be operated in intrinsically safe
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circuits with approved switching amplifiers.
Connection
1.
Loosen the screw (1) on the cover (2).
2.
Push the cover (2) till it reaches the front stop.
3.
Screw each cable tight in the appropriate terminal.
4.
Push the cover (2) till it stops at the motherboard.
5.
Tighten the screw (1) of the cover (2).
6.
Fix the cables of each switch in pairs on the mounting eye using
the cable binders provided (3).
Design and method of operation
41
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