Warner Electric MCS-131 User Manual

MCS-131 Series High Speed

Overexcitation Controls

P-262
819-0493

Installation & Operating Instructions

Contents

Basic Function . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Installation

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Initial Checkout . . . . . . . . . . . . . . . . . . . . . . . . . .3

Control Adjustments . . . . . . . . . . . . . . . . . . . . . .3

LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Interface Programming . . . . . . . . . . . . . . . . . . . .4

Board Setup And Programming . . . . . . . . . . . . .4

Dimensions and Adjustment Locations . . . . . . . .6-9

Warranty . . . . . . . . . . . . . . . . . . . . . . . . .Back Page

Warner Electric • 800-825-9050 P-262 • 819-0493

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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.

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

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 MCS­130 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.

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.

Warner Electric • 800-825-9050 P-262 • 819-0493

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CH1 ON

CH1
LED

CH2
LED

1K Ω 1/4 w

1K Ω 1/4 w

+12
100 ma

CH2 ON

Stitch Logic Board, part number 6040-448-017
(optional). Open collector compatible, device rating:

15 volts DC, 20 ma. minimum, maximum saturation
voltage ≤ 0.7 VDC.

Provides for start, stop, and inhibit functions. See
Figures 6 and 7.

OPTIONAL COMPONENTS: 4.8 volt power board,
part number 6040-448-014 (optional). Provides for

4.8 volt DC @ 1.0 amp output for operating MCS­624 Register Mark Scanner.

Cover, part number 6040-448-015 (optional).
Provides for optional enclosure of basic MCS-131.

Applications

Typical applications for overexcitation include cutting
labels after printing, separating bags after
manufacture, filling, and other precision applications.
System capabilities are expanded by using the
optional logic boards with the basic control.

The basic control provides both 12 volts DC for use with
the 12 volt DC compact scanners, and 24 volts DC for
use with the MCS-638 color Mark Scanner. The MCS-624
Register Mark Scanner may be used also, when the 4.8
volt Power Board is used.

It should be noted that the maximum rated output for the
Clutch-Brake is limited to 4.4 amps. If applications require
use of Clutch-Brakes whose ratings exceed this maximum
limit, the factory should be consulted.

Installation

Mounting

Mount the Control with the terminal strip positioned
toward the top. This allows the transformer heat to rise
away from the other components.

Wiring

1. Connect clutch and brake to each pair of
respective Channel 1 and Channel 2 terminals
as required.

Control Adjustments

Set AC selector switch to the desired range
120 VAC or 240 VAC.

CH 1 Delay, CH 2 Delay:

2. Connect AC input to the AC input terminals.

Potentiometer adjustment which delays the actuation
of Channel 1 or Channel 2 to prevent Clutch-Brake
overlap. Range Adjustment: 0.1 to 7 milliseconds.

3. The earth ground terminal provides for connection of
the transformer core to earth ground.

4. Connect input switches per appropriate figure
for type switching desired.

CH 1 Torque, CH 2 Torque:
Potentiometer adjustment for steady-state output
voltage of Channel 1 and Channel 2. Range adjust­ment; 0 to 6 volts DC.

CH 1 Overexcitation, CH 2 Overexcitaiton:
Potentiometer adjustment for adjusting overexcitation
time period for Channel 1 and Channel 2. Range
adjustment: 2 to 14 milliseconds.

LED Indicators

a. For Basic Control Switching, use Figure 2.
b. For Bag Logic Module, use Figures 3 & 5,

or 4 & 5.

c. For Stitch Logic Module, use Figures 6 & 7.

5. For external LED indicator connection, connect as
follows:

Initial Checkout

Basic Control without interface options, per Figure 2.

1. Apply AC power to MCS-131 Control.

2. With inhibit terminal (2) grounded, control

CR 102, CR 302:

should power-up channel 2 on.

Indicates when Channel 1 or Channel 2 output is
actuated. CR 205, CR 405:
Indicates operation of overexcitation pulse for
Channel 1 or Channel 2 when switched.
CR 12: Input LED on “in” terminal. On when input
terminal is pulled low.

Warner Electric • 800-825-9050 P-262 • 819-0493

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3. Ground input terminal (8), control should
switch to channel 1 on, and “in” LED should be on.

4. Remove ground from input terminal (8), control
should switch back to channel “on” and “in” LED
should be off.