Warner Electric ER 825 and 1225 Heavy Duty - Manual (Page 5)

5 Warner Electric • 800-825-9050 P-251 • 819-0121
Step 6:
Electrical Connections. Several different
types of controls can be used on the ER-825.
However, only one control can be used on the
ER-1225 electrically released brakes. If you are
installing an ER-825 brake, follow the
procedures in Section I below. When completed
with Section I, proceed to Step 7. If you are
installing an ER-1225, follow the procedures in
Section II below. When completed with Section II,
proceed to Step 7.
Section I For ER-825 Brakes
ER-825 brakes require a variable voltage or
variable current control to release the brake by
offsetting the magnetic force generated by
permanent magnets. Warner Electric controls,
such as the CBC-200 (single channel) or
CBC-300 (dual channel), offer variable output and
are suitable for use with ER-825 brakes.
Connection should be made in accordance with
instructions provided with the chosen control.
Section II For ER-1225 Brakes
Connect the MCS-805-1 or MCS-805-2 Power
Supply per the following diagram and
instructions:
ER brakes are polarity
sensitive. Connect the “+” terminal of the
brake to the “+” terminal of the control and
the “-” terminal of the brake to the “-”
terminal of the control. Plus to plus and
minus to minus connections are imperative.
Put machine in safe condition
so that when voltage is applied to the control
and switch closures are made the brake
does not rotate and machine does not run.
2 3 4 5 6 7 8
115 VAC
Brake
Release
Brake (-) (+)
2 3 4 5 6 7 8
230 VAC
Brake
Release
Brake
Coil
(-) (+)
MCS 805-1
MCS 805-2
A. 115 VAC supply to terminals 1 and 4. Jumpers
to connect terminal 1 with terminal 2 and
terminal 3 with terminal 4. Recommended fuse
is 3/4A slow blow.
or:
230 VAC supply to terminals 1 and 4.
Jumper to connect terminal 2 with terminal 3.
Recommended fuse is 3/4A slow blow.
B. A chassis ground should be provided as a
non-current conducting ground wire (color
coded green).
C. Switching. Follow instructions per control
models listed.
MCS-805-1 Standard Control Operation
1. For switching DC side: Switch connected to
terminals 7 and 8. Switch open will allow
brake to be engaged. Switch closed will
enable the release of the brake.
2. For switching AC side: Line power off will
allow brake to be engaged. Line power on
will release brake. A jumper connection
must be made between 7 and 8.
3. Slower brake actuation will result when
switching the AC side.
MCS-805-2 Two Step Control Operation
1. With switch connected to terminals 7 and 8
and switch is open with AC power applied,
brake will be partially engaged.
2. With switch connected to terminals 7 and 8
and switch is closed with AC power
applied, brake will be fully released.
3. With switch connected to terminals 7 and 8
and switch closed with AC power removed,
brake will be fully engaged.