Warner Electric MCS2000-DRV2 - Manual (Page 19)

Check LED’s for various conditions
Check Incoming DC Power to MCS2000-DRV2 either 24 VDC or 48 VDC. Check that power is applied.
If unit has power, check that input signals to Input “A” and Input “B” vary between 0 and 10 VDC.
Check that brake coil is not open by doing a resistance check on the magnet coil. Refer to the Tension
Catalog for proper resistance.
Check that brake is wired to the MCS2000-DRV2.
Verify that the brake is the proper size for the application. Contact Warner Electric for assistance.
Check that maximum voltage is being applied to the brake. Also, check that brake coil is drawing rated
current at maximum voltage by placing a digital current meter in series with one of the brake leads.
Check the Driver LED’s to insure that the control has not gone into a fault condition.
Check mechanically that the brake armature or magnets are free and not binding and can engage
properly.
Check that the input signal to the Channel “A” and Channel “B” inputs goes to full 10 volts on the
control inputs. If inputs do not go to 10 volts maximum, check the controller for proper operation and
set up. Refer to the particular control manual for proper adjustments.
Check that the anti-residual output is set properly. Too little output and the brake will drag due to
possibly high residual.
Check that the anti-residual output is not adjusted too high. Adjusting the anti-residual too high can
result in the brake re-engaging.
Refer to the Anti-Residual Adjustment section of this manual for proper adjustment and readjust as
necessary.
The following chart, on page 20, shows a comparison of the MCS2000-DRV, MCS2000-DRVH and the
MCS2000-DRV2 terminal connections.
The MCS2000-DRV2 is a universal driver designed as a replacement for the previous MCS2000-DRV
and MCS2000-DRVH in one version.
Terminal block connections are slightly different on the MCS2000-DRV2 since the previous drivers had
additional inputs that typically were not used.
If the application used some of the previous terminals, then consult the factory for assistance in
making the MCS2000-DRV2 compatible for the application.
If problems arise that are not covered in the above troubleshooting section, then either the local Warner
Electric Representative or Warner Electric Distributor should be contacted for additional assistance.
This completes the installation of the MCS2000-DRV2 Driver. This manual covers only the Driver and
does not cover the controller part of the system.
Refer to the appropriate manual for set-up and operation of the controller. Failure to do so could result
in damage to the controller and/or driver and possibly void the warranty.
Warner Electric • 800-825-9050 P-2010-6 • 819-0524
Symptom Possible Solution
No Output to Brake
Brake does not
produce sufficient
torque
Brake seems to
drag when off
The
MCS2000-DRV2
is different from
my old driver
Other Potential Faults
19