Flowserve DRC-17 - Manual (Page 11)

WCAIM2058 DataFlo Digital Electronic Remote Controller DRC17 11
3.1 Wiring the DRC Motor Driver Board
In the following instructions, the “rear” side of the terminal strip
refers to the side that faces toward the center of the actuator; the
“front” side faces toward the outside of the actuator. Wire color
descriptions show the dominant color first and the stripe last
(e.g., WHT/YEL is a white wire with yellow stripe).
If not factory-installed, locate the motor driver board and mount
the board to the actuator brackets inside the actuator housing
per part 2.3.
Insert the WHITE wire from the board along with the WHITE motor
common wire to the rear side of location 1 on the terminal strip.
NOTE: When there are multiple wires going to terminal location
1, use short white wire provided. Connect it to terminal location
1 and then splice it to the other white wires (common) using the
closed-end splice provided.
Attach the BROWN wire to the rear side of location 2 on the
terminal strip.
Attach the RED wire to the front side of location 3 on the
terminal strip. The RED wire from the rear of this terminal should
go to the counterclockwise limit switch.
Attach the BLACK wire to the front side of location 4 on the
terminal strip. The BLACK wire from the rear of this terminal
should go to the clockwise limit switch.
For 120 VAC only, remove the yellow wire from terminal 5 and
the brown wire from terminal 6, disconnect them from the N.O.
contacts of switches 1 and 2 and discard them.
NOTE: For 240 VAC Controller Wiring:
For this voltage only, the two limit switches do not directly
switch off the motor.
Replace the original gray and blue actuator wires (make a note of
which color wire is on which capacitor terminal and then discard
them) with those provided. Connect them to the capacitor as
originally wired and to terminals 3 and 4 (gray to 3, blue to 4)
(reference 240 VAC wiring diagram).
The two black wires (#20 gauge) from the motor driver board
connect to the common and normally closed contacts of switch
1 (lower right hand switch), and the two red wires (#20 gauge)
from the motor driver board connect to the common and
normally closed contacts of switch 2 (lower left-hand switch).
Route the wires so they will not interfere with switch or feedback
pot operation.
The cams which operate these switches are adjusted as
referenced in paragraph 2.1.3.
Attach the WHT/YEL wire to the rear side of location 7 on the
terminal strip.
Attach the WHT/BLU wire to the rear side of location 8 on the
terminal strip.
Attach the WHT/RED wire to the rear side of location 9 on the
terminal strip.
Attach the feedback pot GREEN wire to the rear side of location
10 on the terminal strip.
Attach the feedback pot WHT/BLK wire to the rear side of
location 11 on the terminal strip.
Attach the feedback pot PURPLE wire to the rear side of location
12 on the terminal strip.
3.2 Wiring From the DRC to the Actuator
A shielded 20 AWG multi-conductor cable should be used to
connect the potentiometer lines between the DRC and the
actuator. The potentiometer lines are those at the actuator
terminal strip in locations 10 through 12. The power supply
cable should be 16 AWG.
Attach a signal wire between DRC P1 location 3 and the Actuator
terminal strip location 7.
Attach a signal wire between DRC P1 location 2 and the Actuator
terminal strip location 8.
Attach a signal wire between DRC P1 location 1 and the Actuator
terminal strip location 9.
Attach a signal wire between DRC P1 location 4 and the Actuator
terminal strip location 10.
Attach a signal wire between DRC P1 location 5 and the Actuator
terminal strip location 11.
Attach a signal wire between DRC P1 location 6 and the Actuator
terminal strip location 12. This location is shared with the drain
wire of the signal cable.
Attach the drain wire (shield) of the signal cable to location 12 of
the actuator terminal strip. This location is shared with a signal
wire. Cut off the drain wire at the other end inside the DRC
enclosure. Be sure the drain wire is cut as close to the insulation
as possible to avoid contact with any other terminals.
Attach a GREEN (ground) power supply wire from DRC TB1
location 3 to a metal ground location on the actuator.
Attach a WHITE (neutral) power supply wire from DRC TB1
location 1 to the front side of location 1 on the actuator terminal
strip.
Attach a BLACK (hot) power supply wire from DRC TB1 location
2 to the front side of location 2 on the actuator terminal strip.
3.3 Wiring the DRC Power Supply Board
Wiring the DRC power supply board involves wiring the setpoint
input signal, the process input, and power. These are necessary
for operation of the unit. Optionally, the DRC can be wired for
serial communications, an alarm output, a positioner control
selector, a position feedback current output, and spare locations.
Each area of wiring is discussed in this section.
3.3.1 Wiring for a Current Setpoint (DRC17 – 4 – x – x – xxx)
Refer to Figure 7 and connect the positive current signal
lead to TB2 location 7 in the DRC enclosure.
Connect the negative current signal lead to TB2 location 6
in the DRC enclosure.
Location 8 has no connection.
Flow Control
Worcester Actuation Systems