ABB AV2123000 Positioner User Manual

POSITION TRANSMITTERS
FLAG
CAM
27 LARGE GEAR
60
31
96
SMALL GEAR
SET SCREW
92
95
MOUNTING BRACKET
21
POTENTIOMETER
(2000 Ω)
NOTES:
1. SOME HARDWARE ITEMS HAVE
BEEN OMITTED FOR CLARITY.
2. IDENTIFIED ITEMS PERTAIN TO
THE POSITION TRANSMITTER
OPTION ONLY.
TERMINAL
BLOCK TB1
T00788A
Po
Figure A-3. Potentiometric Position Transmitter (Exploded View)
Table A-1. Potentiometric Position Transmitter Kit 258670_1
Item
No.
Part No. Qty Description
21 6639540_2 1 Potentiometer assembly
27 193243_1 1 Large position transmitter gear
31 19734_45 1 Washer
60 5400317_1 1 Gear adapter
92 NDPAC13012 2 Threaded forming screw
95 5400268_1 1 Potentiometer mounting bracket
96 193242_1 1 Small position transmitter gear
d. Tighten the set screw on the small gear hub.
NOTE: If the mesh between the large and small gears is not
tight, adjust the position of the potentiometer mounting bracket
(Fig. A-3 and Table A-1) so that backlash is eliminated.
e. Remove the ohmmeter from TB1-1 and TB1-2. Install the
cam, screw, flag, nut and washer (Fig. A-3 and Table A-1).
CALIBRATION
A - 5