Warner Electric MCS2000-PSDRV2 - Manual (Page 19)

19 Warner Electric • 800-825-9050 P-2010-7 • 819-0525
Symptom Possible Solution
No Output to Brake
Check LED’s for various conditions.
Check incoming DC power to MCS2000-PSDRV2 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-PSDRV2.
Brake does not produce sufficient torque
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.
Brake seems to drag when off
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 MCS2000-DRV2 is different from
my old driver
The MCS2000-PSDRV2 is a universal driver designed as a replacement for the previous
MCS2000-PSDRV and MCS2000-PSDRVH in one version.
Terminal block connections are slightly different on the MCS2000-PSDRV2 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-PSDRV2 compatible for the application.
Other Potential Faults