Flowserve Logix 1200e LGAIM0044 - Manual (Page 12)

44-12 Flowserve Corporation, Valtek Control Products, Tel. USA 801 489 8611
Collector Board
The collector board assembly provides a central rout-
ing for all electronic connections in the positioner, link-
ing the pressure modulator coil, hall effect sensor and
field inputs to the main electronics. The collector board
assembly also provides for mounting of the pressure
sensors used in the advanced model.
Removing Collector Board (Figure 20)
1. Make sure valve is bypassed or in a safe condition.
2. Disconnect the power and air supply to the unit.
3. Remove the main cover and disconnect the wiring to
the collector board. Each cable has its own unique
connector to prevent mistakes in reconnecting.
4. Remove the four No. 8-32 screws holding the
collector board to the housing.
5. Remove the collector board.
Replacing Collector Board
NOTE: A Logix 120X (standard model) cannot be
upgraded to a Logix 1210e (advanced model) by
changing out the collector board. The Logix 120X and
Logix 1210e use different positioner housings.
1. Advanced collector board only – Verify that pres-
sures sensors are in place on back of collector
board, and that the two O-rings are in place.
2. Set collector board assembly in place.
3. Advanced collector boards require a stiffener plate
above the pressure sensors (Figure 20).
4. Insert four No. 8-32 screws through the collector
board into the threaded holes of the housing.
NOTE: The two screws through the stiffener plate
are longer.
5. Tighten all four screws.
6. Connect the main ribbon from the electronics tray.
7. Reconnect wiring to the collector board.
Field Terminations
The customer interface board provides a connection
point inside the explosion proof housing for all hook-
ups to positioner. While the board is not likely to expe-
rience a failure, it can easily be replaced.
Replacing Customer Interface Board
(Figure 2 &
20)
1. Make sure valve is bypassed or in a safe condition.
2. Disconnect the power and air supply to the unit.
3. Remove the main cover and disconnect the cus-
tomer interface cable from collector board.
4. Remove the customer interface cover and the three
No. 8-32 screws.
5. Remove customer interface board, carefully pulling
wiring through bore.
6. Verify that the O-ring is in place in the counter bore
in the positioner housing.
7. Feed wiring through passageway into main cham-
ber of housing.
8. Set the circuit board in place and secure with three
No. 8-32 screws.
9. Connect customer interface cable to collector
board.
10.Replace covers.