Warner Electric Preassembled Clutch_Electrically Released Brake Module - Manual (Page 5)

Warner Electric • 800-825-9050 819-0346 • P-273-2 5
Electrical Connections and Control
Requirements
A. The wiring diagram included with each
Warner Electric control shows the proper
electrical connections to be made.
B. Controls used must have adjustable output
voltage .
C. All Permanent Magnet Type Electrically
Released Brake Modules are polarity
sensitive. Therefore, the (+) red wire must be
connected to the (+) terminal and the
(-) black wire to the (-) terminal.
90 Volt Brake recommended controls are:
CBC-160-1
CBC-160-2
CBC-200
CBC-300
CBC-500-90
CBC-550-90
24 Volt Brake recommended controls are:
CBC-500-24
CBC-550-24
The positive side of the adjustable supply
must be connected to the red lead of the
brake. Please refer to the figure below for
the proper electrical connections. Clutch
leads are identified with a white insulator
sleeve. Brake leads have a black insulator
sleeve.
Brake Release Adjustment
The following procedure will
result in the brake releasing and allowing the
load to be free to move. Be sure the load is in
a safe condition before proceeding with this
process.
The following procedure describes how to set
the adjustable power supply to the optimum
release point of the brake. A volt-meter is
required to perform the procedure.
No power is applied to motor
during this procedure. Power normally
supplied by motor to brake control should be
supplied by alternate method.
1. With power off, connect the positive lead of
the power supply to the positive (red) lead of
the brake and the negative lead of the power
supply to the negative (black) lead of the
brake .
2. Connect a volt-meter to measure the voltage
applied across the brake.
3. Adjust the power supply to its lowest
possible output, then energize the power
supply only, to apply power to the brake.
4. Starting from the low point, slowly increase
the applied voltage until the brake armature
disengages from the magnet. Note and
record the applied voltage at this point.
5. Continue to slowly increase the applied
voltage until the armature re-engages the
magnet. If the maximum voltage available
from the supply does not cause the armature
to re-engage, the armature should be
manually assisted into engagement.
NOTE: If armature needs to be manually
assisted, armature should be pressed on
back side to make contact with friction
face of magnet.
6. With the armature re-engaged, slowly reduce
the applied voltage until the armature
disengages from the magnet. Note and
record the applied voltage at this point.
7. The optimum release point for the brake is
half-way between the two recorded voltage
readings. Adjust the supply to this optimum
release voltage .
NOTE: The above procedure should be
done by visually watching the armature
move and may be repeated if necessary
from Step 1 through Step 7.