Warner Electric MCS2000-DRV2 - Manual (Page 11)

System Start-Up
24 Volt System
1. Prior to applying power, double check all
wiring between Tension Control and Driver,
Driver and Brake or Brakes, and 24 Volt
Power Source and Driver.
2. Once connections are checked and
confirmed that all wiring is correct, turn power
on to the Power Supply and Controller and
observe “RED” and “GREEN” LED Indicators
on the Driver.
3. If everything is normal, then the “GREEN”
LED will be on and “RED” LED’s will be off.
Any other indication of the “RED” and
“GREEN” LED’s, refer to the troubleshooting
section, page 17 of the manual for
troubleshooting and diagnostics.
4. If drive is functional and no problems are
noted, then the anti-residual output to the
brake or brakes needs to be adjusted
accordingly. Adjust the anti-residual output
for Channel “A” as follows:
4a. Using a digital DC Voltmeter, connect the
positive lead to terminal 1 and the
negative lead to terminal 2 of the
MCS2000-DRV2 for Channel “A” input.
4b. Adjust the Tension controller being used
to give a 0 VDC reading on the Channel
“A” input.
4c. Using a small screwdriver, rotate the
anti-residual potentiometer “A” fully
counter-clockwise so the output
voltage to the brake is zero level.
Voltage can be measured to the
Channel “A” brake on terminals 5 and
6 of the MCS2000-DRV2. Terminal 5 is
positive, and terminal 6 is negative.
Note that the “GREEN” LED for
Channel “A” is flashing at this time.
4d. Now slowly adjust the anti-residual
potentiometer “A” clockwise while
feeling the reaction on the brake.
When the optimum anti-residual
output is obtained, the brake will be
very free to rotate or the armatures in
the case of the TB’s will feel like they
are floating away from the magnet
assembly.
Note: Using a meter across the brake “A”
terminals 5 and 6 as noted in 4c above, the
voltage observed should be negative at this time.
4e. Once this point is found, do not adjust
this potentiometer further or the brake
can re-engage.
4f. If a second brake is used on Channel
“B”, then proceed to step 5 otherwise
this completes the anti-residual
adjustment for the “A” Channel.
Continue to step 6.
The following LED indications will be present when
anti-residual current is applied to the brake.
AR “A”
Channel “A”
- (Green LED)
- (Red LED)
The Channel “A” is operating in the anti-residual
mode with the following indication.
Flashing “ON” 1.5 sec, “OFF” 0.5 sec
RED LED is “OFF”
- (Green)
Warner Electric • 800-825-9050 P-2010-6 • 819-0524 11