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CURRENT-TO-
PRESSURE
TRANSDUCER
or
TORQUE MOTOR
REMOTE
METER
0-1 madc
(OPTIONAL)
4.3
Follower Arm Control Setup
The control adjustments marked with an underline on the label are the only ones needed for follower arm
adjustment. Stop time and Stop multiplier apply to all operating modes and are not distinctively marked.
1) Set the following switch and 22-turn potentiometers to the settings given below:
F switch
ZERO
FULL
D
CORE
STOP TIME
STOP MULT
2) Set the external TENSION pot full Clockwise.
3) Position the follower arm on an empty core.
4) Adjust the CORE pot to obtain zero on the remote meter.
5) Adjust the ZERO pot until the meter just starts to increase, and then reverse adjustment direction to
just return the meter to zero.
6) From published torque versus output curves adjust the CORE pot for the desired output at core.
(Example: y madc to provide xx psi at core.)
7) Place the follower arm at the full roll position, and adjust the FULL pot to the desired output at full
roll.
Setup is complete, and the DFC-A is ready for operation.
Optional adjustments:
Stop Multiplier and Stop Time. The STOP MULT pot can be used to increase the torque while the
machine is stopping. The increased torque is applied when the RUN/STOP input is closed (terminals 9
and 10). The length of time the increased torque is applied is adjusted by the STOP TIME pot. The
STOPPED indicator illuminates when the Stop Time expires.
24 vdc
19
20
21
-
+
24
VDC
OUTPUT
1mA
METER
0-10
4-20
+
-
+
+
-
SHIELD
1
2
3
4
5
6
Figure 4
Follower Arm Electrical Connections
PD
full Counter Clockwise
full Clockwise
full Counter Clockwise
full Counter Clockwise
full Counter Clockwise
full Counter Clockwise
TENSION
(OPEN FOR RUN)
RUN-STOP
+
-
SHIELD +
SHIELD
9
10
11
12
13
14
15
16
CW
10K
TENSION
RUN/STOP
INCREASING
OPEN FOR RUN
DIAMETER
INCREASING
(OPTIONAL)
TENSION
3
POSITION
-
17
18
DFP
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