Warner Electric MCS-131 - Manual (Page 3)

Specifications
Input Power: 120VAC ±10%,
50/60 Hz or 240VAC
±10%, 50/60 Hz,
Switch Selectable on
Board
Load: Clutch-Brake, 6 volt,
4.4 amps maximum
Output: Each Channel
Current Rise Time up to
Rated Max.:
2 Milliseconds
Current Fall Time: 2 Milliseconds
Overexcitation Time: Adjustable 2 to 14
milliseconds
Steady-State Output: Adjustable 0 to 6
volts
Overlap Time Delay: Adjustable 1.5 to 8.5
milliseconds
Maximum Cycle Rate: 300 CPM on 5”
clutch-brake
Auxiliary Output: 12 volts DC @ 100
milliamps, 24 volts
DC @ 100 milliamps,
4.8 volts DC @ 1
amp (optional)
Inputs:
BASIC INPUTS: Open collector compatible, device
rating: 15 volts DC, 20 ma. minimum, maximum
saturation voltage ≤ 0.7 VDC.
In basic control mode, only inhibit and input
terminals are used for switching. See Figure 2.
EXPANDED INPUTS: Bag Logic Board, part number
6040-448-016 (optional). Open collector
compatible, device rating: 15 volts DC, 20 ma.
minimum, maximum saturation voltage ≤ 0.7 VDC.
Provides for start, stop, scanner and scanner inhibit.
See Figures 3, 4, and 5.
Failure to follow these
instructions may result in product damage,
equipment damage, and serious or fatal injury
to personnel.
Basic Function
The simplest clutch-brake control system comprises
an on-off switch and the clutch/brake. When
extreme accuracy or high duty cycle rates are not
required, this is the most desirable control to use.
However, for applications requiring greater accuracy
and speed, more sophisticated controls are
necessary. Overexcitation is a momentary voltage
many times greater than the control’s nominal value.
Overexcitation builds up a clutch and brake field
much faster than ordinary excitation, without
damage to the clutch or brake.
The MCS-131, when used with a 6 volt, size 500
clutch/brake, can reduce the response time for
rated current buildup or decay to 2 milliseconds.
The result is very quick and highly accurate
clutch/brake engagement and disengagement.
The steady-state output for each of the control’s
two channels can be independently adjusted from 0
to 6 volts. To prevent torque overlap when switching
from one channel to another, the switching interval
time delay can be adjusted from 0.1 to 7
milliseconds. In addition to steady-state level and
overlap adjustments, the over-excitation time is
adjustable from 2 to 14 milliseconds on each
channel.
With these adjustments, the control can be set to
precisely match the machine drive to its load. The
machine’s maximum cycle rate can also be
achieved while minimizing machine shock by
providing optimum cushioning to start-stop
functions.
The basic MCS-131 is identical to the earlier MCS-
130 with regard to outside dimensions and
mounting, but the terminal strip is slightly different.
However, the MCS-131 will directly replace the
earlier MCS-130.
Warner Electric • 800-825-9050 P-262 • 819-0493 2