Warner Electric TCS-200-1H - Manual (Page 15)

15 Warner Electric • 800-825-9050 P-2003-2 • 819-0420
Note: If maximum starting torque available is less
than the actual starting torque required, the amount
of angular travel of the roll follower potentiometer
must be increased.
If the voltage reading is greater than 1.3 VDC,
decrease the front panel tension adjust until a 2.5
VDC reading is obtained.
o 17. Set the front panel tension adjust for the
desired starting torque required for the
application.
o 18. Start the machine and draw the web through.
o 19. Monitor the voltage at terminals 9 and 11 of
terminal block TB1, as well as the brake current
on terminal 1 of terminal block TB2. As the roll
diameter decreases, the sensor voltage and the
brake current will decrease, keeping the tension
relatively constant.
o 20. After an initial run has been completed,
remove power from the system and wait
approximately 30 seconds before proceeding to
the next step.
o 21. Disconnect the meter from the sense magnet
lead to terminal block TB2. Tighten the lead
screws.
Proceed to step 23 in next section.
All Other Two Wire Tension Brakes
o 5. Connect a DC voltmeter between terminals 2
and 3 of terminal block TB2.
Note: Use a DC voltmeter that reads from 0 to 24
VDC. Connect the positive (+) lead to terminal 2 and
the negative (-) lead to terminal 3.
o 6. Reapply power to the control system.
o 7. Place the mode selector switch in the brake
"off" position. The meter should read zero
voltage and the brake should be free wheel.
o 8. Place the mode selector switch in the brake
"stop" position. The meter should read
approximately 24 VDC and the brake should be
locked.
o 9. Place the mode selector switch in the brake
"run" position and set the tension adjust
potentiometer to its maximum (fully clockwise)
setting.
Note: Refer to Table 1 for various inputs and outputs
when using the roll follower system.
o 10. Connect a second DC voltmeter between
terminals 9 and 11 of terminal block TB1.
Note: Use a DC voltmeter that measures zero to 10
VDC and connect the positive (+) lead to terminal 9
and the negative (-) lead to terminal 11.
o 11. With the roll follower potentiometer
disconnected from the roll follower arm, position
the follower arm to true zero, which should be
the centerline of the unwind spindle.
o 12. Adjust the roll follower potentiometer to zero
voltage on the voltmeter connected between
terminals 9 and 11 of terminal block TB1.
o 13. Connect the roll follower potentiometer to the
roll follower arm. After coupling the follower arm
to the potentiometer, recheck the voltage
between terminals 9 and 11 of terminal block
TB1 to insure that the voltage is still zero VDC.
o 14. Place a full roll of material on the unwind
stand.
o 15. Set the roll follower arm on the unwind roll.
o 16. Check the voltage between terminals 9 and
11 of terminal block TB1 and refer to Table 1. If
the voltage reading is less than 0.8 VDC, refer to
Table 1 for the nominal output voltage available.
Note: If maximum starting torque available is less
than the actual starting torque required, the amount
of angular travel of the roll follower potentiometer
must be increased. If the voltage reading is greater
than 1.3 VDC, decrease the front panel tension
adjust until a 1.3 VDC reading is obtained.