Flowserve Electri-SAFE DataFlo Digital Electronic Positioner - Manual

Worcester Controls
WCAIM2025
(Part 14944)
Electri-SAFE DataFlo Digital Electronic Positioner
Installation, Operation and Maintenance Instructions
MODELS
15 DP 72 - DataFlo Positioner Mounted On 15-72 Electri-SAFE
Actuator
20 DP 72 - DataFlo Positioner Mounted On 20-72 Electri-SAFE
Actuator
Inputs
DP - 1K (120 A)
1000 ohm Resistance Input
DP - 10 (120 A) 10 to 50 milliampere Input
DP - 13 (120 A) 135 ohm Resistance Input
DP - 5V (120 A) 0 to 5 VDC Input
DP - 1 (120 A) 1 to 5 milliampere Input
DP- XV (120 A) 0 to 10 VDC Input
DP - 4 (120 A) 4 to 20 milliampere Input
Voltages
120A - 120 VAC Power Circuits
DESCRIPTION OF ACTUATOR
GENERAL
This Installation, Operation, and Maintenance manual makes reference
to “Valve closed and open positions.” When the Electri-SAFE actuator
is mounted with positioner housing up, and the actuator mounted in-
line with the valve piping.
Then the CLOSED POSITION = FULL CLOCKWISE (CW), and the
OPEN POSITION = FULL COUNTERCLOCKWISE (CCW).
DESCRIPTION
Worcester Controls/McCANNA Series DP 72 actuators are electro-
hydraulic quarter-turn valve actuators which can be set to hold
positions between full closed and full open. These units feature a
normally open solenoid valve which returns the actuator to its initial,
or fail-safe, position when electrical power is removed from the
actuator.
The actuator design utilizes a double-rack, single-pinion concept, with
each rack integrally cast to a piston. Both pistons are supported and
centered by large, stainless steel guide rods.
A Worcester Controls/McCANNA Electri-SAFE Electronic Positioning
Circuit board is used to set positions between full closed and full
open. It is mounted in the positioning housing attached to the top of
the actuator. The positioner board has many programmable features
and custom settings. These are outlined in the Technical and
Programming Reference Manual.
ENVIRONMENTAL CONSIDERATIONS
CAUTION: The Electri-SAFE DataFlo Digital Electronic Positioner is
sensitive to electrical noise on signal or supply lines and in the
environment. For maximum positioner sensitivity, the electrical
noise level should be as low as possible. Follow installation,
calibration and adjustment guidelines carefully and use shielded
wire for all signal wiring.
Flowserve recommends that all products that must be stored prior
to installation be stored indoors, in an environment suitable for
human occupancy. Do not store product in areas where exposure to
relative humidity above 85%, acid or alkali fumes, radiation above
normal background, ultraviolet light, or temperatures above 120°F
or below 40°F may occur. Do not store within 50 feet of any source
of ozone.
Temperature and humidity are the two most important factors that
determine the usefulness and life of electronic equipment.
Temperature
Operating solid-state electronic equipment near or beyond its high
temperature rating is the primary cause for most failures. It is,
therefore, very important that the user be aware of and take into
consideration, factors that affect the temperature at which the
electronic circuits will operate.
Operating an electronic device at or below its low temperature rating
generally results in a unit operating poorly or not at all, but it will
usually resume normal operation as soon as rated operating
temperatures are reached. Low temperature problems can be easily
cured by addition of a thermostatically controlled heater in the
positioner housing.