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DANCER-FOLLOWER ARM CONTROL WITH LOW VOLTAGE OUTPUT
All of the information herein is the exclusive proprietary property of Maxcess International, and is disclosed with the
understanding that it will be retained in confidence and will neither be duplicated nor copied in whole or in part nor
be used for any purpose other than for which disclosed.
Copyright 2004, all rights reserved.
Periodically there will be updates to this manual. The latest version is available at www.magpowr.com or by calling
1-800-MAGPOWR (624-7697).
1.0
Introduction
The MAGPOWR Model DFC-A is a complete solution for Follower Arm or Dancer control applications. The DFC-A
provides a 0 to 10 vdc or 4 to 20 ma output to control a current-to-pressure transducer, or a motor drive in torque
mode.
Terminals are provided for the connection of an external 1 madc current meter. The meter display will indicate
output as a percentage of the selected output range (0 to 10 vdc, or 4 to 20 madc).
The inputs and outputs are referenced to earth ground. The DFC-A operates on 24 vdc input.
2.0
Installation
The DFC-A is intended for installation on a vertical panel using a DIN 35 rail, using the wiring terminals facing
down. Figure 1 shows the enclosure dimensions.
All wiring should comply with the essential requirements of the appropriate standard(s) and is the responsibility of
the installer.
Route control signal wiring away from AC wiring. Connect shields of shielded cable to the terminals indicated as
"SHIELD". Maximum shield length and maximum length of wires outside of the shield is 3 in. (75 mm).
1.39
[35.2mm]
850A273-1
05/06 Rev. D
INSTRUCTION MANUAL
MODEL DFC-A
2.30 [58.4mm]
3.38
[85.8mm]
Enclosure Dimensions
222 W. Memorial Road, Oklahoma City, OK 73126-0508
Phone: 1-800-624-7697
www.magpowr.com
4.13 [105mm]
Figure 1
Fax: 405-755-8425
E-mail: magpowr@magpowr.com
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Summary of Contents for Magpowr DFC-A
- Page 1 The inputs and outputs are referenced to earth ground. The DFC-A operates on 24 vdc input. Installation The DFC-A is intended for installation on a vertical panel using a DIN 35 rail, using the wiring terminals facing down. Figure 1 shows the enclosure dimensions.
- Page 2 Maintenance The only maintenance that may be required on the DFC-A is fuse replacement. Replacement of the fuse requires first removing dc power, then opening the enclosure. The enclosure must be re-installed to maintain the IP rating. The enclosure may be opened by inserting a flat blade screwdriver under the retaining tabs in the base (See figure 2).
- Page 3 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.
- Page 4 Operation Tension is adjusted using the external 10 kohm tension pot. Rewind taper can be adjusted using the FULL pot. 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.
- Page 5 The RUN/STOP input must be used if the integrator is on (F switch in position). The RUN/STOP input should be closed (terminals 9 and 10) when the machine starts its deceleration. The DFC-A keeps the integrator on until Stop Time expires. Stop Time may be increased by Clockwise rotation of the STOP TIME pot.
- Page 6 Stop Multiplier and Stop Time. Even if integrator mode is not used, 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.
-
Page 7: Troubleshooting
Incorrect type of meter. Meter should be a current meter with working. 1 ma full scale and no more than 500 ohm resistance. Meter wires shorted or Disconnect meter wiring at the open. DFC-A and check for proper meter resistance between the wires. - Page 8 DFP or DFP-2 is moved through its travel. Dancer not calibrated. Follow the calibration procedure in section 5.3. DFC-A in PID mode and Verify RUN/STOP switch wiring. PID RUN/STOP switch is not mode needs a RUN/STOP switch for wired properly.
-
Page 9: Specifications
Specifications Supply Voltage: 24 vdc, +/- 10%, 0.08 amp maximum Fuse: F1 2.0 amp, Littelfuse Part No. 216.002, or Wickmann Part No. 19194-057-FS Enclosure: IP20 Climatic Class: 3K3 (EN60721) Temperature Range: Operating: 0° C to 50° C Storage: -30° C to 80° C Relative Humidity: 5% to 85% Pollution Degree:...