Dwyer SCC-C/C User Manual

Model scc-c/c, Single channel module, Open signal family

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Model SCC-C/C

Single Channel Module

NOTE

:

THIS

IS

A

FACTORY

CONFIGURED

UNIT

SCC

OPEN SIGNAL Family

Each SCC-C/C unit is configured and calibrated at
the factory for the input signal range and voltage
output range printed by the factory on the SCC
unit’s side-label.

The unit may be re-configurated to accept a 0 to
20mA, 0 to 10mA, 4 to 20mA, ±10mA, or ±20mA
input signal and provide a 0 to 20mA or 4 to
20mA output signal. Unit re-configuration re-
quires Dwyer’s SC Configuration 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 ’s Instrument’s Windows®/PC or Win-
dows®/CE HPC based SC Configurator Utility,
interfacing the SCC unit to the computer’s RS-
232C comm port with an SCC Configuration Cable,
and then changing the unit’s input/output con-
figuration settings.

FACTORY CONFIGURATION

15 - 32VDC, 30mA external supply voltage

Mandatory:

Optional:

SC Configuration Package (Part No. SCC-
CC-A1) Package consists of: SC
Configurator Utility and SCC Configura-
tion Cable.

REQUIREMENTS

The SCC family of single channel signal condi-
tioning and isolating modules 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 permits
users to select the model which meets their unique
signal conditioning needs.

OPERATIONAL DESCRIPTION

INSTALLATION

1

4

3

2

6

5

GREEN LED

RED LED

CABLE

PORT

TERMINAL

BLOCK

ENCLOSURE

ENCLOSURE

COVER

SNAP-ON TAB

(COVERS COMM CABLE PORT)

SNAP-ON TAB

(TERMINAL MARKERS)

WIRING

TERMINALS

TERMINAL

SET SCREW

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

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
Blinking

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.

SCC models may be purchased with a factory pre-
set configuration for plug-n-play application or
custom configured to meet their unique need. All
SCC models may be configured/reconfigured by a
user at anytime through use of an optional SC
Configuration Utility.

Theory of Operation - An analog world input
signal arriving at the SCC unit is isolated, filtered,
amplified, scaled and/or linearized (as required) by
the units onboard microprocessor under the direc-
tion of the unit’s configuration parameters set by
the user (or factory) via Windows®/PC or Win-
dows®/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.

3 . Connect input current device to SCC unit:

Positive (+) to SCC terminal +V/C IN
Negative (-) to SCC terminal -V/C IN

4 . Connect output actuator/device to SCC unit:

Positive (+) to SCC terminal +OUT
Negative (-) to SCC terminal -OUT

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SCC