MICRO-AMP® System
MA3 and MA3P Modulated Amplifiers
BannerMICRO-AMP®modulesMA3andMA3Paremodulatedamplifiers designed
for use with the miniature SP100 Series remote sensors. Miniature photoelectric
sensors,suchastheSP100s,havetraditionallybeenusedasnon-modulateddeviceswith
very limited response. These specially-engineered amplifiers bring about a dramatic
improvement in the optical performance of miniature remote sensors.
MICRO-AMP modules are powered by 10 to 30 volts dc, and feature the patented
Banner Alignment Indicator Device (AID™) signal strength LED. Sensor sensitivity
is adjustable via a top-mounted GAIN potentiometer. Model MA3 has complemen-
tary current sinking (NPN) outputs; model MA3P has complementary current sourc-
ing (PNP) outputs. Circuitry is epoxy-encapsulated and enclosed in a tough molded
VALOX® housing. Connections may be made to the MICRO-AMP via the optional
RS8 socket/wiring base, or the module may be mounted directly to a printed circuit
board (see page 3).
The small size and the slim ribbon-style connecting cable of SP100 Series sensors
make it possible to use photoelectrics in many situations previously thought to be
impractical or even impossible.
MICRO-AMP® Model MA3 Specifications
SUPPLY VOLTAGE: 10 to 30V dc at less than 20 milliamps (ex-
ADJUSTMENT: GAIN adjustment (single-turn potentiometer;
adjust with small flat-blade screwdriver).
INDICATOR: exclusive Banner Alignment Indicator Device
(AID™) system lights a red LED indicator whenever the sensor "sees"
its own modulated light source, and pulses at a rate proportional to the
strength of the received light signal.
clusive of load); 10% maximum ripple.
OUTPUT CONFIGURATION: two open-collector NPN (current
sinking) transistor (solid-state) switches; one normally open (light
operate) and one normally closed (dark operate); 150 milliamps maxi-
mum, each output. Saturation voltage less than 0.5Vdc at 10 milliamp
load. Off-state leakage current less than 1 microamp.
CONSTRUCTION*: totally encapsulated plug-in package with
molded VALOX® housing. Gold-flashed connection pins.
OPERATING TEMPERATURE:
0 to +70 degrees C (32 to +158 degrees F).
RESPONSE SPEED: 1 millisecond ON and OFF.
REPEATABILITY: 0.3 millisecond.
*A Dimension Drawing appears on page 3.
SENSOR LEAD LENGTH: 15 feet (4,5 m) maximum.
Hookup Diagram, MA3 Amplifier
Functional Schematic, MA3 Amplifier
Model MA3P: PNP (current sourcing) output
Model MA3P has the same specifications and performance as the MA3 amplifier, except that the MA3P has complementary PNP outputs in
place of the MA3's NPN configuration.
OUTPUT: two PNP transistors, complementary outputs; one normally open (light operate) and one normally closed (dark operate). 150 mil-
liamps maximum, each output. Saturation voltage is less than 1V dc at 10 milliamps. Off-state leakage current is less than 1 microamp.
Hookup Diagram, MA3PAmplifier
Printed in USA
03340F3G
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MICRO-AMP® System Accessories
RS8 Socket
The RS8 socket is the most fre-
quently used means of mount-
ing and wiring a MICRO-AMP
module. It consists of a socket
with two four-terminal connec-
tion strips, all wired together
onto a PC board. The PC board
assembly slides into a 1 inch
(25mm) long PVC track which
is used to mount the entire as-
sembly. A hold-down screw
keys the correct polarity of the
module.
Dimensions, MA3 and MA3P, shown with RS8
Wiring Socket
RS8K Socket
The RS8K is a kit of parts that
comprise the socket portion of
the RS8 assembly. It is used to
provide a socket for MICRO-
AMP 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
includedtoaffixthesocketblock
tothePCboard. Thedrillsizefor
the pins is #50 (.070"; 1,8mm).
Drill pattern dimensions are
included.
MICRO-AMP®
module
pin configuration.
Mounting Track
TR100-1 1 inch (25mm) long (supplied with RS8 socket)
TR100-4 4 inch (100mm) long (supplied with MPS-15 series power supply)
TR100-6 6 inch (150mm) long
TR100-12 12 inch (300mm) long
PVC mounting track for MICRO-AMP components is available in 6 and 12 inch
lengths for systems which use multiple components. For example, a 6-inch length
will accomodate one MPS-15 power supply plus two additional RS8 sockets with
modules.
Longer lengths of mounting track may be supplied on a quote basis.
Dimensions, TR-100 Mounting Track
"A" Di-
mension
Minimum
number of slots
Track Model
TR100-1
TR100-4
TR100-6
TR100-12
1" (25mm)
4" (10cm)
6" (15cm)
12" (30cm)
1
2
3
8
3
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MPS-15 and MPS-15-230 Power Supplies
The MPS-15 Series power supplies are designed specifically to supply power for the
Banner MICRO-AMP series amplifiers and logic modules. They are constructed on small
PC boards that are track-mountable for compatibility with other track-mounted MICRO-
AMP components. The MPS-15 includes a socket for a MICRO-AMP amplifier or logic
module having current sinking (NPN) output*. The combination of an MPS-15 series
power supply and a MICRO-AMP module makes a complete and compact sensing and/or
control system.
A built-in 5-amp rated SPDT output relay is supplied for easy interfacing to an external
load or circuit. Its action is controlled by the outputs of a MICRO-AMP module which is
plugged into the on-board module socket*. Aswitch on the PC board selects which module
output (normally open or normally closed) will activate the relay.
Two models are available. Model MPS-15 is for 120V ac operation. Model MPS-15-230
is for 220/240V ac power. Up to three MICRO-AMP modules may be powered by one
MPS -15 or MPS-15-230 power supply. A 4-inch (10cm) long mounting track is included
with each supply. Optional 6-inch (15cm) track model TR100-6 neatly accomodates the
MPS-15 Series PC board plus the PC boards of two additional RS8 sockets to form a
complete three-module MICRO-AMP sensing/logic system. (See Mounting Track infor-
mation, page 3.)
*Do not plug MICRO-AMP modules with PNP (current sourcing) outputs ("P" suffix) into the socket on the MPS-15 or MPS 15-230 power supply.
Other MICRO-AMP® Modules
Modulated
Amplifier
Module
Model
Logic Functions
Used with (Input)
Full Description
Banner catalog or
data sheet 03523
Banner SP100FF modu-
YES
YES
NONE (ON/OFF)
NONE (ON/OFF)
ONE-SHOT
lated fixed-field sensor
MA3A
Banner high-performance
remote sensors
Banner catalog or
data sheet 03341
MA3-4 and MA3-4P
Banner catalog or
data sheet 03350
Switches, contacts, or
NPN (current sinking)
output of dc sensors or
amplifiers, including:
Banner MULTI-BEAM,
MAXI-BEAM, VALU-
BEAM, MINI-BEAM,
and ECONO-BEAM
sensors; plus MAXI-
AMP and MICRO-AMP
modules.
MICRO-AMP logic
modules are designed to
accept the output signal
from a MICRO-AMP
amplifier and process
that signal for a required
logic function. MICRO-
AMP logic modules
themselves contain no
amplifier.
MA4-2
MA4G
Banner catalog or
data sheet 03351
4-input logic gate:
AND, NOR, X-NOR
Banner catalog or
data sheet 03352
Latch or alternate-action
flip-flop
MA4L
Banner catalog or
data sheet 03353
ON-delay or OFF-delay
NONE (ON/OFF)
MA5
Banner SP100 Series min-
iature modulated remote
sensors
MPC3
(for printed circuit
board mounting)
Banner catalog or
data sheet 03336
YES
WARNING MICRO-AMP® Systems do NOT include the self-checking redundant circuitry necessary to allow their use in
personnel safety applications. A sensor or amplifier failure or malfunction can result in either an energized or a de-energized output
condition.
Never use this product as a sensing device for personnel protection. Its use as a safety device may create an unsafe condition which
could lead to serious injury or death.
Only MACHINE-GUARD and PERIMETER-GUARD Systems, and other systems so designated, are designed to meet OSHA and
ANSI machine safety standards for point-of-operation guarding devices. No other Banner sensors or controls are designed to meet these standards, and
they must NOT be used as sensing devices for personnel protection.
WARRANTY: BannerEngineeringCorporationwarrantsitsproductstobefreefromdefectsforoneyear. BannerEngineeringCorporationwillrepairorreplace,
free of charge, any product of its manufacture found to be defective at the time it is returned to the factory during the warranty period. This warranty does not
cover damage or liability for the improper application of Banner products. This warranty is in lieu of any other warranty either expressed or implied.
Banner Engineering Corp. 9714 10th Ave. No., Minneapolis, MN 55441 Telephone: (763) 544-3164 FAX (applications): (763) 544-3573
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