Direct Acting, Top Loaded, Single Acting Tubing Example - ABB AV1 Operating Instructions Manual

Refer to Appendix A for detailed information about position trans-
mitters.
NOTE: Route the wiring inside the positioner so it does not
become entangled with moving parts. A cable clamp (Figs.
and 4-1) is provided inside the positioner so entanglement can
be avoided.
ALTERNATE PIPING FOR
DIAPHRAGM ACTUATOR
WITH HANDJACK
OUTPUT GAGE (O1 PORT)
NOTES:
1. BLACK CAM ROTATES COUNTERCLOCKWISE
WHEN VIEWED FROM THE FRONT.
2. O2 PORT PLUGGED.
3. STEM MOVES UP WITH SIGNAL OR SUPPLY
AIR FAILURE.
Figure 3-10. Direct Acting, Top Loaded,
Single Acting Tubing Example
4. Grounding positioners should be done in accordance with
local electrical codes (in U.S, National Electrical Code, ANSI/
NFPA 70. In Canada, Canadian Electrical Code, CSA c22.1). A
grounding screw is provided inside the enclosure for grounding,
denoted by .
NOTES:
1. The grounding screw located inside the enclosure is a safety
ground and should not be used to ground the shielded pair.
2. The positioner must be grounded to avoid ground loop
conditions.
INSTALLATION
HANDJACK
O1
G2
SIGNAL GAGE
G1
MOTION WITH
INCREASING SIGNAL
WIRING TYPE AV2 POSITIONER
3-1
T00890A
3 - 11