4
1) Set the following switch and 22-turn potentiometers to the settings given below:
switch
F
ZERO
full
Counter
Clockwise
FULL
full
Clockwise
D
full
Counter
Clockwise
CORE
full
Counter
Clockwise
STOP TIME
full
Counter
Clockwise
STOP MULT
full
Counter
Clockwise
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 current curves adjust the
CORE
pot for the desired output current at
core. (Example: y madc to provide xx ft.-lb. at core)
7) Place the follower arm at the full roll position, and adjust the
FULL
pot to the desired output current at
full roll.
Setup is complete, and the DFC-90 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 17
and 18). 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.
5.4
Operation
Tension is adjusted using the external 10 kohm tension pot.
Rewind taper can be adjusted using the
FULL
pot. The tension will decrease as the roll diameter
increases without changing the remote TENSION pot setting. Counter Clockwise rotation of the
FULL
pot will decrease the tension at full roll, thereby increasing the amount of taper.
If the stop multiplier function is used, Clockwise rotation of the
STOP MULT
pot will increase the
stopping torque. Clockwise rotation of the
STOP TIME
pot will increase the time that the stopping torque
is applied. The
STOP TIME
may be adjusted from 0.2 to 60 seconds.
