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"AND": all inputs low energizes N/O output.

Any input(s) high energizes N/C output.

"NOR": all inputs high energizes N/O output.

Any input(s) low energizes N/C output.

"X-NOR" ("exclusive NOR"):

All inputs the same energizes N/O output.

All inputs not the same energizes N/C output.

MICRO-AMP

System

MA4G 4-input Gate Logic Module

Printed in USA

P/N 03351F3C

MICRO-AMP

module MA4G is a 10 to 30V dc, plug-in, 4-input logic gate module. It

offers three selectable logic modes: "AND", "NOR", and "X-NOR" (exclusive "NOR").

In the AND gate mode, the output(s) will change state when all four inputs are low simul-

taneously. The NOR logic mode requires that all four inputs be high at the same time for

the output(s) to change state. The output(s) will change state in the X-NOR mode when

all four inputs are simultaneously either high or low. The MA4G may be used as a 2, 3

or 4-input gate. Unused inputs are simply tied low (to pin #3) or left unconnected (high),

depending upon the logic mode in use.

The MA4G directly accepts the outputs of other MICRO-AMP modules plus the NPN

(current sinking) output of self-contained dc sensors in the following Banner families:

OMNI-BEAM, MULTI-BEAM, MAXI-BEAM, VALU-BEAM, MINI-BEAM, ECONO-

BEAM, QØ8, Q19, Q25, S18, SM3Ø, C3Ø, and SM512 Series.

This table lists the various input states and their corre-

sponding outputs available in each logic mode. The key

to reading the table is given below. Logic statements in

the table read down the columns. For example, in the

rst column, if the selector control is at "AND" and all

four inputs are logic low, the MA4G's N/O output is low,

the N/C output is high, and the LED indicator is "on".

Truth Table

H = logic HIGH

L = logic LOW

X = either HIGH or LOW (does not matter)

Truth Table Key

Hookup Diagram, MA4G LOGIC Module

voltage less than 0.5V dc at 10 milliamps. Off-state leakage current

less than 1 microamp.

SELECTOR SWITCH: single-turn potentiometer selects logic

mode. Fully clockwise = NOR mode; fully counterclockwise = AND

mode; midpoint = X-NOR mode.

INDICATOR: red LED indicator on the top of the module lights

whenever the N/O output is conducting.

CONSTRUCTION: totally encapsulated plug-in package with

molded VALOX

housing. Gold-ashed connection pins.

OPERATING TEMPERATURE:

0 to 70 degrees C (32 to 158 degrees F).

MICRO-AMP MA4G Specications

SUPPLY VOLTAGE: 10 to 30V dc at less than 20 milliamps (exclu-

sive of load); 10% maximum ripple.

INPUTS: INPUT and INHIBIT both respond to a logic "low" signal

(less than 2V dc). A logic "high" is at least 6V dc or an open circuit.

Inputs must be capable of sinking at least 4 milliamps. Inputs may

be derived from limit switches or from dc sensors with NPN (current

sinking) output transistors.

RESPONSE SPEED: all INPUTS will respond to a low signal or

high signal of 1 millisecond duration or longer.

OUTPUT CONFIGURATION: two open-collector NPN transistors

with complementary outputs (one normally open, one normally closed).

Maximum sinking current 150 milliamps, each output. Saturation

Functional Schematic, MA4G LOGIC Module

Summary of content (2 pages)

PAGE 1
MICRO-AMP® System MA4G 4-input Gate Logic Module MICRO-AMP® module MA4G is a 10 to 30V dc, plug-in, 4-input logic gate module. It offers three selectable logic modes: "AND", "NOR", and "X-NOR" (exclusive "NOR"). In the AND gate mode, the output(s) will change state when all four inputs are low simultaneously. The NOR logic mode requires that all four inputs be high at the same time for the output(s) to change state.
PAGE 2
MICRO-AMP® Accessories Sockets RS8 RS8K The RS8K is a kit of parts which comprise the socket portion of the RS8 assembly. It is used to provide a socket for MICROAMP modules that are installed onto printed circuit boards. The RS8K consists of a molded socket block and 8 individual socket pins. A nylon screw is included to affix the socket block to the PC board. The drill size for the pins is #50 (.070"; 1,8mm). Drill pattern dimensions are included with the RS8K.