Warner Electric MCS2000-DRV2 - Manual (Page 15)

Note: Using a meter across the brake “B”
terminals 7 and 8 as noted in 5c above,
the voltage observed should be
negative at this time.
5e. Once this point is found, do not adjust
this potentiometer further or the brake
can re-engage.
5f. This completes the adjustment for the
Channel “B” anti-residual. Proceed to
step 6.
6. Adjust the input voltage from the tension
controller to the Channel “A” input observing
the “RED” and “GREEN” LED’s. If a 48 volt
system is being commissioned, then only the
“GREEN” LED should be functional with the
input voltage between the 0 to 5 volt level,
unless there is a problem with the controller,
brake, or wiring.
6a. Adjust the input voltage from the tension
controller to the Channel “A” input above
5 volts while observing the “GREEN” and
“RED” LED’s. The “GREEN” LED should
be on steady and the “RED” LED should
be flashing at a rate of approximately
30 hertz frequency with the LED on for
typically 0.5 second and off for 1.5
` seconds. This indicates the brake is
operating in the overcurrent mode and
will be limited to 60 seconds.
6b. Allow the control to operate in this mode
for 60 seconds or more and observe the
LED’s. After the overexcitation circuit
times out, the “RED” LED will be flashing
at a frequency of approximately 30 Hertz
with the LED being “ON” approximately 1
second and “OFF” approximately 1
second. Measuring the output to the
brake on Terminals 5 and 6 should
indicate the brake is at 24 volts DC.
6c. Reduce the input on terminals 1 and 2 to
less than 5 volts DC and observe the
LED’s at this time. The “GREEN” LED will
be “ON”, and the “RED” LED will be
flashing at a frequency of approximately
20 hertz, with the “ON” time of
approximately 0.5 second and the “OFF”
time of approximately 2.5 seconds. The
control output to the brake can operate in
the 0 to 24 volt range, but the
overexcitation level from 24 volts to
48 volts is not available as the circuit has
not reset as yet.
6d. Once the overexcitation has reset, the
“GREEN” LED will be “ON” and the
“RED” LED will be flashing as in step 6a
above when the input voltage goes above
5 volts again at terminals 1 and 2 of the
MCS2000-DRV2.
Warner Electric • 800-825-9050 P-2010-6 • 819-0524
AR “B”
Channel “B”
- (Green)
- (Red)
The Channel “B” 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)
The following LED indications will be present with anti-residual current is applied to the brake.
This is anti-residual mode only.
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