Setting The Mechanical Binary Feedback With Proximity Switches; Setting The Mechanical Binary Feedback With 24 V Microswitches - ABB VAC D500 Commissioning Instructions

Electro-pneumatic positioner
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4.4.2
Setting the mechanical binary feedback 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. Only adjust the slot sensors using a
screwdriver.
2. Set the upper and lower switching points for binary
feedback as follows:
— Select "Manual Adjustment" mode and move the valve
by hand into the lower switching position.
— Use a screwdriver to adjust the slot sensor for proximity
switch 1 (lower contact) on the feedback shaft until it
closes the contact (i.e., until shortly before entering the
proximity switch). The slot sensor enters proximity
switch 1 when the feedback shaft is rotated clockwise
(as viewed from the front).
— Move the valve by hand into the upper switching
position.
— Use a screwdriver to adjust the slot sensor for proximity
switch 2 (upper contact) on the feedback shaft until it
closes the contact (i.e., until shortly before entering 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.
4.4.3
Setting the mechanical binary feedback with 24 V
microswitches
1. Loosen the screws for the housing cover and remove it.
2. Select "Manual Adjustment" operating mode and move the
valve 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 "Manual Adjustment" operating mode and move the
valve 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.
D500
| CI/EDP300-EN Rev. A 17

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