Introduction
Within the Danaher Controls A103 family you'll find a product to meet nearly every
requirement for panel mounted control and indication. Housed in a DIN standard 36mm x
72mm case, the A103-007 is an ideal choice for event counting operations which require a
preset. An intenal solid state relay provides a logic signal that can be sent to antother
control device or to an external relay.
The 8 digit supertwist LCD display provides easy viewing at a glance. For conditions where
ambient light is poor, the display can be backlit by connecting an external DC (10-28 Volt)
power supply. A single unit can accept NPN & dry contact inputs for low speed (30Hz)
counting and PNP or square wave signals for high speed applications up to 10 kHz.
Powered by either one or two replaceable 3V Lithium batteries, this unique design allows for
a new battery to be installed before removing the old one, thereby retaining count total and
program data. A low battery indicator appears on the screen to provide a warning several
weeks before the end of battery life. If two batteries are used simultaneously, the individual
expected life doubles to 10 years.
Setup is quick and simple as the two
front panel keys are used to scroll
through 4 menu choices. A NEMA 4X
front panel and noise immunity tested
to IEC 801 level 3 makes this unit
suitable for harsh environments.
Several option modules are available,
inclunding a 5 amp relay which would
enalbe the unit to directly drive a
load.
Technical Manual
701954-0008
Features
•
Large, easy to read 8-digit supertwist LCD
with backlighting capability
•
Display can be toggled between count and
preset value
•
Powered by an internal 3 Volt lithium
battery
•
Accepts low speed (30 Hz) NPN & dry
contact inputs, and high speed (10 kHz)
PNP signals or square wave signals
•
0.1 Amp SSR output
•
Option Modules provide added
functionality and convenience
•
Simple menu-driven setup
•
NEMA 4X rated front panel for use in
washdown environments
Index
Overview
Operation page 2
Terminal Connections page 2
Setup
Installation page 3
Programming page 3
General
Specifications page 4
Warranty page 4
A103-007
Preset
Counter
1
OVERVIEW
OPERATION
VEEDER-ROOT
C.2345678
R
1. Total Display
2. Down Key
1. Total Display: Indicates the present count value, which is equal to
the number of pulses received since the last reset
2. Down Key: Toggles the unit between the total and preset displays
when in Operation Mode. When the program input is active this key is
used to scroll through the menu items. After a menu item has been
chosen for editing, the down key is used to set the value for the
currently selected (flashing) digit.
REAR TERMINAL CONNECTIONS
3. Next/Reset Key
3. Next/Reset Key: When in Operation Mode, depressing the key will
reset the count value to 0, if Front Panel Reset has been enabled in
Programming Mode. When the program input is active this key is used
to select a menu item for editing (left most digit will begin to flash) and
then move to the desired digit to be changed.
4. Preset Value: Indicates the number at which the output will be
activated (for Up counting) or the reset value (for Down counting)
P.3456789
4. Preset Value
VEEDER-ROOT
R
+
-
1. Common
2. High Speed Input A - PNP or squre
signals up to 10 kHz* for incrementing the
count value
3. Low Speed Input A - NPN or dry contact
inputs up to 30 Hz for incrementing the
count value
4. Remote Reset - Resets count value when
switched to common
2
4
3
2
1
5
+
6
Sink Source
7
8
10 - 28 VDC
5. Front Panel Program Enable - Allows access to
program mode when switched to common
6. & 7. - Form A SSR Output
8. DC Supply Input - For backlighting
* For high speed current sinking devices, provide a pull-up
resistor from terminal 2 to a DC source
+
-