Owner's manual

Functional Schematic, MA5 DELAY Module
Hookup Diagram, MA5 DELAY Module
Printed in USA
P/N 03353F3B
MICRO-AMP
®
System
MA5 Delay Logic Module
MICRO-AMP
®
model MA5 is a plug-in delay logic module with adjustable delay tim-
ing. It is designed as a way to easily add an ON DELAY or an OFF DELAY timer to a
MICRO-AMP system which uses an MA3 or MA3-4 amplier. It may also be used to add
a delay timer to any current sinking dc device or to a system which offers a contact closure
output. The MA5 is a perfect add-on to any Banner dc system, including OMNI-BEAM,
MULTI-BEAM, MAXI-BEAM, VALU-BEAM, MINI-BEAM, ECONO-BEAM, QØ8,
Q19, Q25, S18, SM3Ø, and SM512 Series self-contained sensors.
A low-going logic INPUT signal at pin #7 of the module activates an ON DELAY timer.
If the signal remains longer than the set ON DELAY time, the output at both pins #5 and
#6 will change state. If pin #8 is connected to pin #3, the MA5 is converted to an OFF
DELAY timer. In the OFF DELAY mode, an output will occur immediately when an input
signal appears at pin #7, and the output will remain "on" after the input is removed for the
OFF DELAY time period.
The MA5 may be programmed to respond to a high-going input signal by connecting pin
#1 to pin #3. Both NORMALLY OPEN (pin #6) and NORMALLY CLOSED (pin #5)
outputs are available (simultaneously). Both outputs are NPN open-collector (current
sinking) transistors, each capable of switching up to 150 milliamps.
Two delay time ranges are selectable. The .01 to 1 second range is standard, and a 1 to 15
second range may be programmed by connecting pin #2 to pin #3. A potentiometer allows
ne adjustment within each time range.
The MA5 may be mounted and wired using the optional RS8 socket, or it may be wired
into a printed circuit board either directly or by using the model RS8K PC board socket.
OUTPUT


INPUT
Delay
On-delay logic, MA5:
Off-delay logic, MA5:
OUTPUT


INPUT
Hold
Hold
SUPPLY VOLTAGE: 10 to 30V dc at less than 20 milliamps (exclu-
sive of load); 10% maximum ripple.
INPUTS: A logic "low" must be less than 2V dc) A logic "high"
is at least 6V dc or an open circuit. Connecting pin #1 to pin #3 (dc
common) causes the MA5 to respond to "high-going" signals. 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: INPUT will respond to a low or high signal
of 1 millisecond or longer duration.
OUTPUT CONFIGURATION: two open-collector NPN transistors
with complementary outputs (one normally open, one normally closed).
Maximum sinking current 150 milliamps, each output. Saturation
voltage less than 0.5V dc at 10 milliamps. Off-state leakage current
less than 1 microamp.
DELAY SELECTION: connect pin #8 to pin #3 (dc common) for
OFF DELAY operation. For ON DELAY operation, leave pin #8
unconnected.
DELAY DURATION: standard range is .01 to 1 second. Select the
1 to 15 second range by connecting pin #2 to pin #3.
TIMING ADJUSTMENT: single-turn timing potentiometer allows
adjustment of delay time within the selected range (use small at-
bladed screwdriver for adjustment).
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 MA5 Specications