Warner Electric Gen 2 Electro-Module EM-50, EM-100, EM-180 - Manual (Page 11)

11 Warner Electric • 800-825-9050 819-0529
• If power is present in the proper voltage and
current, then skip ahead to the Mechanical
Troubleshooting Section.
• If power is not present, inspect the lead
wires for breaks or cuts.
• If the wires are intact, the problem may be
with the power supply or the switch.
• Using a voltmeter, check to see that voltage
is leaving the power supply and that the
switch is sending power to the clutch or
brake.
• Finally, if there is no power leaving the
switch or power supply, check the incoming
AC power to insure that it is reaching the
power supply.
Troubleshooting - Mechanical
A likely mechanical cause for a clutch or brake
not engaging when DC power is applied is that
the airgap between the friction faces is too
large. When power is applied to an Electro-
magnetic clutch/brake, the unit magnetically
clamps the friction faces together. An airgap that
is too large can keep the unit from clamping
together. If the airgap is too small the faces will
rub all of the time.
To adjust the airgap, see Section C on page 5.
Enclosed Electro-Module Options
Vented Warner Electric Electro-Module and
base assemblies can be oriented as necessary
to keep contaminates from entering the open
housing vents.
If an Enclosed Electro-Module (10-20, 10-40,
20-30, 30-40, 10-20FBC, 20FBC-30) is required
an optional Cover Kit, Warner Electric part
number 5370-101-076, can be purchased
separately to enclose the open vents in the
housing. Each Cover Kit includes two (2) vent
covers and four (4) screws needed to convert a
vented Electro-Module to an enclosed design
(non-washdown) as shown in Figure 12a.
Electrical Coil Data
Clutch Brake Clutch Brake
Voltage-D.C. 90 90 24 24
Resistance EM-50 452 429 31.8 28.8
(OHMS) EM-100/180 392 308 26.7 21.7
Current EM-50 .20 .21 .76 .83
Ampheres) EM-100/180 .23 .29 .90 1.1
Power EM-50 18 19 19 20
(WATTS) EM-100/180 21 27 22 27
Coil Build Up EM-50 52 40 52 40
Time (ms) EM-100/180 72 80 72 80
Coil Decay EM-50 6 5 6 5
Time (ms) EM-100/180 12 8 12 8
Mechanical Data
EM-50 EM-100/180
Static Torque - lb. ft. 16 30
Maximum Speed - rpm 3600 3600
Average Weight - lbs.
20 9.2 11.2
10-20 15.6 18.7
10-40 14.0 16.6
20-30 18.4 21.7
30-40 16.8 19.5
Inertia - WR - lb.ft. 2
Configuration 50 100/180
20 output .0195 .050
10-20 input .021 .047
10-20 output .0195 .050
10-40 input .021 .047
10-40 output .0105 .027
20-30 input .021 .047
20-30 output .0195 .050
30-40 input .021 .048
30-40 output .0105 .027