Warner Electric MCS-208 - Manual (Page 18)

18 Warner Electric • 800-825-9050 P-276 • 819-9045
System Start-Up and Adjustment
MCS-166/MCS-208 Transducer
The MSC-208 is factory set and calibrated for a 4-20
ma output. This output signal is intended to drive the
transducer supplied by Warner Electric. However,
other DC current ranges or DC voltage ranges can be
selected for output from the MCS-208. Consult factory
if a transducer with a different input range has been
selected.
Most control adjustments should require no further
setting. The exception is the torque/span adjust which
sets the maximum output limit. Please follow the
setup and adjustment procedure below to assure a
trouble-free start-up.
Refer to Figure 13, page 21, for exact location of
adjustments and indicators.
A. Preliminary Set-Up
 1. Set voltage selector switch on MCS-166 for
proper input voltage range, either 120 VAC
or 220/240 VAC.
NoTe: An additional switch has been added to the
MCS-166 for selecting 200 or 240 VAC operation.
This switch is labeled Low-High.
 2. Set the Low-High switch as follows:
 a. For 120 VAC, set to High position
 b. For 240 VAC, set to High position
 c. For 220 VAC,set to Low position
NoTe: The Low-High switch is used primarily for
selecting 220 or 240 VAC operation when the line
selector switch is set for 240 VAC, but it can also
be used if low line input voltage exists.
 3. Low line input: For 108 VAC input when set
on 120 VAC or 198 VAC input when set on
240 VAC, set the Low-High switch to the
Low position.
 4. High line input: For 132 VAC input when set
on 120 VAC or 198 VAC input when set on
240 VAC, set the Low-High switch to the
High position.
Improperly setting the 120/240 VAC
selector switch and the high-low selector switch
can damage the power supply and/or control
module and void their warranties.
 5. Slide the power module into its housing and
secure with the two captive fasteners on the
faceplate.
Pull the ribbon cable forward so
that the connector is in front of the housing
assembly. Fasten the ribbon cable connector to
the pin connector on the control module. Pin 1 (red
tracer) on the ribbon cable must connect to Pin 1 on
the control module as shown. This “red tracer” will
ALWAYS be toward the top of the control.
 6. Set the output type and range per figure 13,
page 21, as follows:
NoTe: The MCS-208 is factory set to provide a 4-20
ma signal to the transducer. If a standard transducer is
being used, proceed to Step 7. For a transducer that
operates with a different input signal, the proper output
must be selected. It will then be necessary to follow the
MCS-208 calibration procedure outlined in the static
adjustment section.
 a. Set the voltage/current selector
switch, SW1 for the proper output.
Select IP for a current to pressure
transducer or select EP for a voltage
to pressure transducer.
 b. For a current to pressure transducer
it is also necessary to select the
proper range. The output current
ranges of 10-50 ma, 4-20 ma, and
1-5 ma are available, and can be
selected with SW2.
 7. Slide the MCS-208 Control Module into its
housing and secure with the two captive
fasteners on the faceplate.
Pull the ribbon cable forward so
that the connector end is in front of the housing
assembly. Fasten the ribbon cable connector to the
pin connector on the control module. Pin 1 (red
tracer) on the ribbon cable must connect to Pin 1 on
the control module as shown. This “red tracer” will
ALWAYS be toward the top of the control.
B. Static Adjustments and Check Out
 1. Install a pressure gage into the output of the
transducer.
 2. Apply air pressure to the system.
 3. Apply power to the Tension Control System