background image

 

 

4

 
 
1)  Set the following switch and 22-turn potentiometers to the settings given below: 
 

 

 

switch

  

 

 

 

 

 

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. 

 
 
 
 
 
 
 

Содержание DFC-90

Страница 1: ...current ranges Maximum outputs for the individual ranges are 0 125 0 25 0 5 and 1 0 adc The appropriate range is determined by the current rating of the clutch or brake to be controlled For best torq...

Страница 2: ...the IP rating The enclosure may be opened by inserting a flat blade screwdriver under the retaining tabs in the base See figure 2 5 0 Follower Arm Applications 5 1 Electrical Connections Figure 5 sho...

Страница 3: ...is half way through its travel DFP 2 To find the electrical center point of pot rotation use a digital multimeter type ohm meter to measure from the white wire wiper to the red or black wire Turn the...

Страница 4: ...lete 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...

Страница 5: ...are isolated and may be ground referenced Figure 7 Dancer Electrical Connections 6 2 Sensor Setup The DFP or DFP 2 position sensor should be at the center of rotation when the dancer is halfway throu...

Страница 6: ...achine stopped set the switch to This turns the integrator on 7 Run the machine near full roll and at a slow speed and use the pot to center the dancer Clockwise rotation of moves the dancer up toward...

Страница 7: ...e dancer is overshooting To do this move the stable dancer away from its set position by pushing on the dancer by bumping the unwind rewind roll or by some similar means If the dancer goes past the se...

Страница 8: ...tion 5 3 Voltage between terminals 20 and 22 should be greater than zero and should change as the DFP or DFP 2 is moved through its travel Remote tension potentiometer resistance is less than 10 kohms...

Страница 9: ...not calibrated Follow the calibration procedure in section 6 3 Clutch Brake output full on or full off DFC 90 in PID mode and RUN STOP switch is not wired properly Verify RUN STOP switch wiring PID m...

Страница 10: ...Residual Current Device Types A or B IEC755 Worst Case Fault Current 1 6 amp ac Inputs Signal DFP or DFP 2 Potentiometer 1 to 10 kohm watt minimum Tension Potentiometer 10 kohm minimum watt minimum R...

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