Dwyer Instruments SCC-POT/C Quick Start Manual

FACTORY CONFIGURATION
Each SCC-POT/C unit is configured and calibrated
at the factory for the input signal range and volt-
age output range printed by the factory on the
SCC unit's side-label.
The SCC-POT/C unit is capable of accommodat-
ing 0 to 500 Ohms or 0 to 100KOhms at its input.
The unit automatically selects the proper input
range for the connected potentiometer. Factory
configured units have been calibrated for a 0 to
10KW input The SCC-POT/C unit is capable of a
0 to 20mA or 4 to 20mA output signal. Unit re-
configuration requires Dwyer Instruments, Inc.
Configurator Utility.
This SCC unit may be reconfigured by a user at
any time via their personal computer (PC) or
handheld personal computer (HPC) by installing
Dwyer Instruments, Inc. Windows®/PC or Win-
dows®/CE HPC based SC Configurator Utility, in-
terfacing the SCC unit to the computer's RS-232C
comm port with an SCC Configuration Cable (sold
separately), and then changing the unit's input/
output configuration settings.
OPERATIONAL DESCRIPTION
The SCC family of single channel signal condi-
tioning and isolating modues are intelligent, user
programmable, high-accuracy, user friendly, sig-
nal conditioning units.
Each SCC model supports one (1) specific analog
signal-type on its input channel and outputs one
(1) high-level current or voltage signal depending
upon model. A diverse SCC model family per-
mits users to select the model which meets their
unique signal conditioning needs.
SCC
OPEN SIGNAL Family
Model SCC-POT/C Single Channel Module
:
NOTE THIS IS A FACTORY CONFIGURED UNIT
SCC models may be purchased with a factory pre-
set configuration for plug-n-play application or
available unconfigured so user may configure the
unit to meet their unique need. All SCC models
may be configured/reconfigured by a user at any-
time through use of an optional SCC Configura-
tion Package.
Theory of Operation - An analog world input signal
arriving at the SCC unit is isolated, filtered, ampli-
fied, scaled and/or linearized (as required) by the
units onboard microprocessor under the direction
of the unit's configuration parameters set by the
user (or factory) via Windows®/PC or Windows®/
CE HPC (Handheld Personal Computer) based SC
Configurator Utility.
The conditioned signal is then converted to a high
level analog current or voltage output signal (de-
pending upon model) and presented at the unit's
isolated output.
REQUIREMENTS
Mandatory:
• 15 - 32VDC, 30mA external supply voltage
Optional:
• SC Configuration Package (Part No. SCC-
CC-A1)
Configurator Utility and SCC Configura-
tion Cable.
INSTALLATION
1. Mount SCC unit on standard TS32 or TS35
DIN rail.
2. See wiring diagram on reverse side. Connect
external 15 to 32VDC power source to SCC
unit:
Positive (+) to SCC terminal +VDC
Negative (-) to SCC terminal -VDC/-OUT
TERMINAL
WIRING
BLOCK
TERMINALS
ENCLOSURE
6
5
4
3
2
1
SNAP-ON TAB
(TERMINAL MARKERS)
SNAP-ON TAB
(COVERS COMM CABLE PORT)
Package consists of:SC
ENCLOSURE
COVER
GREEN LED
CABLE
PORT
RED LED
TERMINAL
SET SCREW
3. Connect Potentiometer to SCC unit:
Pot 1 to SCC terminal POT1
Pot Wiper to SCC terminal POT WPR
Pot 3 to SCC terminal POT3
4. Connect output actuator/device to SCC unit:
Positive (+) to SCC terminal +OUT
Negative (-) to SCC terminal -VDC/-OUT
DIAGNOSTIC TOOLS
Two LEDs one RED and one GREEN are located
on the front face of the SCC's enclosure and pro-
vide user with visual indication as to unit opera-
tion.
LED FUNCTIONALITY
LED's have three operational states:
Steady ON
Steady OFF
B l i n k i n g
Condition: GREEN = BLINKING
RED = Steady OFF
Meaning: Module is processing data.
Condition: GREEN = Steady ON
RED = Steady ON
Meaning: 1) Configuration data is not loaded in
module memory. -OR- 2) During module re-con-
figuration both LED's are normally ON indicat-
ing data is being properly transferred to or from
module memory.
Condition: GREEN = BLINKING
RED = BLINKING
Meaning: The measured input signal is outside
the modules configured range. When the signal is
within configured range the LED's indicate nor-
mal operation.
All other combinations indicate the module is not
operating correctly.