Spirax Sarco SP7-20 - Setting Mechanical Limit Switches; Setting with Proximity Switches; Setting with 24 V Micro-switches

IM-P706-03 CTLS Issue 1
36
SP7-20 Smart Positioner
4.7 Setting the mechanical limit switch with proximity switches
1. Loosen the screws for the housing cover and remove it.
Caution - Risk of injury!
The device includes slot sensors with sharp edges.
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Adjust the metal tags using a screwdriver only!
2. Set the upper and lower switching points for binary feedback as follows:
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Select the ‘Manual Adjustment’ operating mode and move the final control element by hand into
the lower switching position.
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Using a screwdriver, adjust the metal tag of proximity switch 1 (lower contact) on the axis until contact
is made, i. e., just before it is inserted in the proximity switch. The slot sensor enters proximity switch
1 when the feedback shaft is rotated clockwise (as viewed from the front).
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Move the final control element by hand into the upper switching position.
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Using a screwdriver, adjust the metal tag of proximity switch 2 (upper contact) on the axis until contact
is made, i. e., just before it is inserted in the proximity switch. The slot sensor enters proximity switch
2 when the feedback shaft is rotated counter-clockwise (as viewed from the front).
3. Attach the housing cover and screw it onto the housing.
4. Tighten the screws so that they are hand-tight.
4.8 Setting the mechanical limit switch with 24 V micro-switches
1. Loosen the screws for the housing cover and remove it.
2. Select the ‘Manual Adjustment’ operating mode and move the final control element by hand into the
desired switching position for contact 1.
3. Set maximum contact (1, lower washer).
Fasten the upper washer with the special adjustment retainer and rotate the lower washer manually.
4. Select the ‘Manual Adjustment’ operating mode and move the final control element by hand into the
desired switching position for contact 2.
5. Set minimum contact (2, upper washer);
Fasten the lower washer with the special adjustment retainer and rotate the upper washer manually.
6. Connect the microswitch.
7. Attach the housing cover and screw it on to the housing.
8. Tighten the screws so that they are hand-tight.