Flowserve Electri-SAFE DataFlo Digital Electronic Positioner - Manual (Page 3)

WCAIM2025 Electri-SAFE DataFlo Digital Electronic Positioner 3
For 1 /
4
"-2" 44, 1 /
2
"-2" WK70/WK74, 1 /
4
"-1 1 /
2
" 59 and 1 /
2
"-1 1 /
2
" H71 series
top-mount style valves and 1 /
2
"-2" 51/52 and 1 /
2
"-1 1 /
2
" 82/83 Series
valves with high-cycle stem packing as standard, remove handle nut,
lock washer, handle, separate stop plate (if any), retaining nut and
stop pin(s) and discard. Add the two additional Belleville washers
provided with the mounting kit. Install with their larger diameter sides
touching each other. Add the self-locking nut to the stem and tighten
while holding the stem flats with wrench. Tighten until Belleville
washers are flat, the nut will “bottom”, and then back nut off
1 /
3
of a
turn. The two additional Belleville washers and the self-locking nut are
included in the mounting kit.
CAUTION: The self-locking stem nut is difficult to tighten, and must
fully flatten Belleville washers before backing off.
For 2" 59, H71, 82/83, and 2 1 /
2
" 45, 82/83 series valves, and valves 3"
and larger with square stem, remove handle assembly, retaining nut,
stop and stop screws. Replace with valve stem spacer and replace
retaining nut.
If the valve has graphite stem packing, replace the valve stem spacer
with two Belleville washers, and replace retaining nut. Belleville
washers are installed with their larger diameter sides touching each
other. Do not use stem spacer when Belleville washers are used.
Using a wrench to prevent stem from turning, tighten retaining nut
until stem packing is fully compressed or Bellevilles, if used, are fully
flattened, then back off nut
1 /
6
turn. Excessive tightening causes higher
torque and shorter seal life.
Large valves with V51 high cycle stem packing option installed
(identified by two Belleville washers installed and handle assembly,
stop, and stop screws removed), and 818/828 Series valves do not
require stem area disassembly.
For 1 /
2
"-2" 94 valves, remove handle (if any). Do not remove gland
plate or gland bolts.
For 3"-4" 94 and 2"-3" E818/828 valves, remove handle assembly,
stop, and spacer (if any). Do not remove gland plate or gland bolts.
For 2"-3" 818/828 valves, remove handle assembly, locking plates and
hardware, and stop screw (if any). Do not remove stop plate.
Center coupling on valve stem.
Lower mounting bracket/actuator assembly over coupling and onto
valve, making sure that male actuator shaft engages slot in coupling.
Secure bracket to valve using cap screws and lockwashers, or bolts
and nuts provided in mounting kit. Tighten securely. For small size
top-mount style valves, bracket nameplate will be to side of valve.
Install set screws (if any) in the coupling and tighten securely.
Electrical Wiring of
Actuator and Positioner
The actuator housing contains power and switch terminals for field
wiring. The terminal strip is for incoming power connectors and
optional limit switch wiring for indication of actuator position. Users
can use these optional switches for wiring to their indicating lights
and/or logic. See wiring label on inside of cover and/or wiring
diagram below for power connections. See wiring label on inside of
cover and/or technical reference manual for optional switch wiring.
All electrical connections and calibration functions should be
performed by a qualified individual who is trained in the installation
and operation of electrical equipment.
All wiring to terminal strips shall be inserted only to mid-point of
terminal strip.
120 VOLT AC POWER - minimum required power is 110 volts AC,
maximum is 130 volts AC.
NOTE: This table shows the minimum rating to prevent inrush current
from blowing the fuse.
Minimum Fuse Rating for Over Current Protection
Actuator Size Voltage Fuse Rating
15-72 120 VAC 10 A
20-72 120 VAC 10 A
Loosen the 12 captive screws and remove the flat cover and gasket
on the conduit connection end of the actuator.
Remove the red plastic conduit connection plug and attach a suitable
conduit pipe to the
3 /
4
" NPT conduit connection on the actuator limit
switch.
NOTE: Connections and seals are to meet specifications listed in the
“National Electrical Code” Chapter 5 for the environment in which the
actuator will be installed.
Use #18 awg wire as a minimum wire size.
Attach the AC neutral wire (white) to the terminal strip location
labeled “7” and the AC hot wire (black) to the terminal strip location
labeled “8”.
Attach the ground wire to the green colored grounding screw in the
actuator housing.
Replace the gasket and flat cover, and tighten the 12 captive screws.
INPUT SIGNAL
The positioner housing contains terminals for field wiring of input
signals to operate the actuator.
The Digital Positioner signal input circuit is protected by a 1 /
16
amp
fuse, F1. Location of the fuse is shown on the Digital Electronic
Positioner Circuit Board photograph in the Technical Reference
Manual.
See the Technical Reference Manual for additional detailed input
circuit specifications.
NOTE: After input signal connections have been made, securely
tighten all terminal screws. Keep wiring away from all rotating parts
and ensure wires are not pinched when the covers are installed.
Flow Control Division
Worcester Controls