Warner Electric Gen 2 Electrically Released Motor Brake Module for EM-MBFB and EUM-MBFB - Manual (Page 3)

Warner Electric • 800-825-9050 P-273-8 • 819-0531 3
Step 2: Electrical Connections
The conduit hole in the motor brake is threaded
for standard pipe conduit connectors. The wiring
diagram included with each Warner Electric
control shows the proper electrical connections
to be made. Note: Controls used must have
adjustable output voltage.
Connect the red wire from the unit to the “+”
terminal of the DC supply and the black wire
from the unit to the “-” terminal of the DC supply.
Note: Refer to the brake release adjustment
procedure on page 4.
Control Requirements
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.
Potentiometer control will then provide
adjustment for the proper brake release point as
described in the “brake release” procedure on
page 4.
See the service installation instruction provided
with control for connection information.
90 Volt Brake recommended controls are:
*CBC-160-1 120 VAC input
part no. 6013-448-001
*CBC-160-2 220-240 VAC input
part no. 6013-448-002
CBC-200 120 VAC input
part no. 6011-448-001
CBC-300 120 VAC input
part no. 6021-448-001
CBC-500-90 120 VAC input
part no. 6024-448-003
CBC-550-90 120/220/240/380/480 VAC input
part no. 6024-448-006
*These controls are for use with conduit box kit
part no. 5370-101-042. All others require other
enclosures or alternate mounting.
24 Volt Brake recommended controls are:
CBC-500-24, 24-30 VAC input
part no. 6024-448-002
CBC-550-24, 120/220/240/380/480 VAC input
part no. 6024-448-005
All Permanent Magnet type
Electrically Released Brake Modules are
polarity sensitive. See the service installation
sheet included with the control for connection
information
Burnishing and Maintenance
No burnishing required, units are pre-burnished
and armature airgap set at the factory.
As with any friction-type device, some initial
concern should be given to wear rate.
Improper voltage setting can reduce the braking
life. Once the best release voltage has been
established, precautions should be taken to
prevent machine operators, or other personnel
not familiar with wear characteristics, from
changing the potentiometer setting arbitrarily.
Wear Pattern
Wear grooves appear on the friction surfaces.
This is a normal wear condition, and does not
impair functioning of the unit. Never machine the
friction surfaces to remove grooves or score
marks resulting from normal wear.
Foreign Materials
If units are used on machinery where fine,
abrasive dust, chips or grit are dispelled into the
atmosphere, or if the wear particles from the
brake are undesirable, you may use the optional
cover kit to enclose the module. See page 4 for
more information.
Where units are used near gear
boxes or transmissions requiring frequent
lubrication, means should be provided to
protect the friction surfaces from oil and
grease to prevent serious loss of torque.