Listec SCU 800-03 User manual

LISTEC GmbH Am Sandberg 34 Tel. [phone] [e-mail]
8 4 4 2 4 I s e n Fax [phone] www.listec-gmbh.de
Linear Sensor Technology
LISTEC and LIST are registered trademarks
SCU 800-03
SEC15
(Software version V1.1 and higher)
Manual
Linear Heat
Detection
δ-LIST

δ-LIST Manual SCU800-03 & SEC15
CONTENTS
1 ABOUT THIS ANUAL......................................................................................................................... 4
1.1 ABBREVIATIONS IN THIS MANUAL.............................................................................................. 4
1. DOCUMENTATION STRUCTURE................................................................................................. 5
1.3 VALIDITY........................................................................................................................................ 5
2 GENERAL.............................................................................................................................................. 6
3 FUNCTIONAL DESCRIPTION............................................................................................................... 8
3.1 OPERATION MODES..................................................................................................................... 8
3.1.1 AUTO-CONFIGURED OPERATION....................................................................................... 8
3.1. CONFIGURED OPERATION.................................................................................................. 8
3. THE SCU'S METHOD OF OPERATION......................................................................................... 9
3. .1 MEASURING CYCLES........................................................................................................... 9
3. . TEMPERATURE EVALUATION.............................................................................................. 9
3. .3 REFERENCE PROFILE.......................................................................................................... 9
3. .4 DRIFT...................................................................................................................................... 9
3. .5 ALARM OUTPUT.................................................................................................................. 10
3. .6 ALARM-SIGNALLING........................................................................................................... 10
3. .7 COMMUNICATION INTERFACES........................................................................................ 10
4 INSTALLATION AND CONNECTION.................................................................................................. 11
4.1 SENSOR CABLE.......................................................................................................................... 11
4.1.1 MOUNTING........................................................................................................................... 11
4.1. CUTTING THE SENSOR CABLE......................................................................................... 1
4.1.3 STRIPPING THE SENSOR CABLE...................................................................................... 13
4.1.4 CRIMPING............................................................................................................................ 13
4.1.5 SHIELD CONNECTORS....................................................................................................... 14
4.1.6 CABLE ENDS........................................................................................................................ 15
4.1.6.1 CBO CONNECTION BOXES......................................................................................... 15
4.1.6. CCM150 CONNECTION MODULE................................................................................ 16
4.1.6.3 END15 END CAPS........................................................................................................ 16
4. SENSOR CONTROL UNIT (SCU)................................................................................................ 17
4. .1 MOUNTING THE SCU.......................................................................................................... 17
4. . SCU 800 MAIN BOARD........................................................................................................ 17
4. .3 CONNECTIONS.................................................................................................................... 18
4. .3.1 EARTHING.................................................................................................................... 18
4. .3. FAULT RELAY KL -4 (STOE)....................................................................................... 18
4. .3.3 ALARM RELAYS KL5-8 (AL1; AL )............................................................................... 18
4. .3.4 EXTERAL RESET KL9-10 (EXR).................................................................................. 19
4. .3.5 COMMUNICATION KL11-16 (COM).............................................................................. 19
4. .3.6 SENSOR CABLE CONNECTIONS................................................................................ 0
4. .3.7 LED BOARD CONNECTION......................................................................................... 0
4. .3.8 RS 3 INTERFACE....................................................................................................... 1
4. .3.9 TEST CONNECTOR..................................................................................................... 1
5 SETTINGS AND CO ISSIONING.................................................................................................... 22
5.1 MAIN BOARD...............................................................................................................................
5.1.1 EXTERNAL RESET..............................................................................................................
5.1. RS 485 TERMINATION.........................................................................................................
5.1.3 DISCHARGING IN STATIC ELECTRICAL FIELDS..............................................................
5.1.4 INTERFACE SWITCH...........................................................................................................
5.1.5 BAUD RATE.......................................................................................................................... 3
5.1.6 PROTOCOL SWITCH........................................................................................................... 3
5. LED-BOARD................................................................................................................................. 3
5.3 COMMISSIONING........................................................................................................................ 4
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SCU800-03 & SEC15 δ-LIST Manual
5.4 FUNCTIONAL TEST..................................................................................................................... 4
6 DISPLAY AND OPERATION............................................................................................................... 25
6.1 DISPLAY (LEDS).......................................................................................................................... 5
6. OPERATION................................................................................................................................. 5
6. .1 BUTTONS TA1 AND TA ..................................................................................................... 5
6. . TEST..................................................................................................................................... 5
6. .3 RESET.................................................................................................................................. 6
6. .4 AUTO-SEEK.......................................................................................................................... 6
6. .5 SAVING THE CONFIGURATION.......................................................................................... 6
7 INSPECTION AND AINTENANCE.................................................................................................... 27
7.1 INSPECTION................................................................................................................................ 7
7. MAINTENANCE............................................................................................................................ 7
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δ-LIST Manual SCU800-03 & SEC15
Attention: Read this manual before installing and commissioning the system
Note: Settings made in this manual conform to a system response behaviour
according to EN54-5, class A1.
1 ABOUT THIS ANUAL
The following notations and abbreviations are used in this manual.
Note: All text, written in text boxes such as this, is of utmost importance to the
correct and successful installation of the system. These texts must be adhered to
at all times.
Text written in this font indicates text which is displayed either on the LC-
Display of the SCM4000 or on the screen of the connected PC.
Shaded Text indicates formulas used in the SC .
 are references to further information.
Commands called by pressing buttons or combinations of buttons are shown as follows:
BUTTON(S) Command: CLEAR-TEXT COMMAND nn
= Clear-text command from a PC keyboard
= Numerical command from a PC Keyboard or a SCM master control unit
( Manual “Commands and system messages”)
1.1 ABBREVIATIONS IN THIS ANUAL
CBO Connection box
CC Connection cable
CCM Connection module
CLB 4 way clincher female
DQ Data query
END End device
GND SCU/SCS and sensor cable ground(0V)
I/O Input/output
KL Terminal
NC Normally Closed (relays)
NO Normally Open (relays)
nc no connection
SCM Sensor Control Master (4000)
SCU Sensor Control Unit ( 000 or 3000)
SEC Sensor cable ( 0/x)
VK Cables between terminal block and unit
Page /28 LISTEC GmbH 60T023-01 / 2 /01/08

SCU800-03 & SEC15 δ-LIST Manual
1.2 DOCU ENTATION STRUCTURE
The documentation for the installation, commissioning and maintenance of δ-LIST Systems consists of
three manuals:
1. δ-LIST manual 60T0 3
This manual describes all the steps required to install and commission a δ-LIST system without
using the LISTterm terminal programme on a PC to set further parameters, i.e. commissioning in
the auto-configured mode( 3.1 OPERATION MODES). This manual covers following areas:
●GENERAL: short description of the δ-LIST System with its major components.
●FUNCTIONAL DESCRIPTION: operating modes and the SCU 800’s method of
operation, alarm-evaluation and transmission.
●INSTALLATION AND CONNECTION: installation of the sensor cable, cable
connections, SCU 800 installation and connections.
●SETTINGS AND COMMISSIONING: SCU 800 switch and jumper settings,
commissioning and testing the system.
●DISPLAY AND OPERATION: LED’s and buttons.
●INSPECTION AND MAINTENANCE: inspection and maintenance notes.
2. Extended commissioning manual for a δ-LIST system 60T0 4
An extension of the δ-LIST installation and commissioning manual, for the commissioning of
zoned δ-LIST systems ( 3.1. CONFIGURED OPERATION) and zonal relay alarm outputs.
Prerequisites for this manual are the terminal programme LISTterm and a training course. The
relay card REL800 is described. The configured-mode commissioning and maintenance of a
δ-LIST system are described using an example.
3. Commands and system messages 60T0 5
The description of all SCU 800 commands and messages
Further documentation :
1. LISTterm manual 60T0 9
. SCU 800 data sheet 60V041
3. SEC15 data sheet 60V040
4. External sensor data sheet 60V039
1.3 VALIDITY
This document is valid as of the following versions:
Software V1.1
SCU main board 04
LED card 0
The version number of the software is printed on the EPROM. Version numbers of cards are part of the
unit card-number:
xxxx-M00-vv-nnnnnn where xxxx = module number
vv = version
nnnnnn = serial number
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δ-LIST Manual SCU800-03 & SEC15
2 GENERAL
δ-LIST is a temperature measurement and fire detection system based on a sensor cable which, due to
its sealed construction and high temperature resolution, can be used in the harshest environmental
conditions.
The system consists of a control and evaluation unit (SCU 800, Sensor Control Unit) and a sensor cable
(SEC) with integrated temperature sensors. The sensor cable can be connected to the SCU 800 directly
or with a connection cable (CC) via a connection box (CBO). The ends of the sensor cable are sealed
with a heat shrinkable end cap (END, End Device).
The sensor cable SEC 15 consists of temperature sensors with individual addresses, mounted on a -
core flexible flat cable. The digital temperature transmission allows cable lengths of 50 m.
The sensor spacing is application dependant and freely selectable. Branched cable installations are
possible. The temperature sensors fixed addresses allow an exact physical location of each sensor.
An aluminium shield screens the cable from EMI. The jacket-material is flame-retarding and halogen-
free. The operating temperature range of the δ-LIST sensor cable is specified from -40°C to +85°C. The
functioning of the cable is not impaired at temperatures of up to +100°C. The cable and components can
resist much higher temperatures for short periods. The measured temperatures have a resolution of
0,1°.
The SCU 800 sensor control unit can monitor two SEC 15 sensor cables, each with a maximum length
of 50 m and/or 99 sensors.
Examples:
At least 10 sensors are required for the correct operation of the differential evaluation.
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A
B
SCU800
Sensor Control Unit
LISTEC
A
B
SCU800
Sensor Control Unit
LISTEC
SEC (max. 50m / 99 sensors)
END (end cap)
connection K1 connection K
END (end cap)
SEC (max. 50m / 99 sensors)
SEC (max. 50m / 99 sensors)
e.g. connection K1
e.g. connection K
CC = 1x x0,8 shielded
(E30 / E90 if required)
SEC + CC = max. 50m
SEC max. 99 sensors

SCU800-03 & SEC15 δ-LIST Manual
The SCU 800 supplies the δ-LIST sensor cable with power (5V), performs the cyclic addressing of the
connected sensors, reads the measured temperature values and evaluates the data with reference to
different alarm-criteria. Both connected sensor cables are measured individually and alarms are set on
separate relays.
The SCU 800 can also be used as a slave in a Master / Slave system. The communications connection
between the master unit SCM 4000 and the slaves can either be RS-485 with up to 31 SCU 800 per
SCM 4000
or TTY current loop with a maximum of 8 slaves per master unit.
60T023-01 / 2 /01/08 LISTEC GmbH Page 7/28
SENSOR CONTROL UNIT
LIST
A
B
SCU800
Sensor Control Unit
LISTEC
A
B
SCU800
Sensor Control Unit
LISTEC
A
B
SCU800
Sensor Control Unit
LISTEC
A
B
SCU800
Sensor Control Unit
LISTEC
RS485 Bus = max. 1000m
SENSOR CONTROL UNIT
LIST
A
B
SCU800
Sensor Control Unit
LISTEC
A
B
SCU800
Sensor Control Unit
LISTEC
A
B
SCU800
Sensor Control Unit
LISTEC
1x x0,8 shielded
(max. 4000m / connection)

δ-LIST Manual SCU800-03 & SEC15
3 FUNCTIONAL DESCRIPTION
3.1 OPERATION ODES
The SCU can be operated in two modes:
a) Auto-configured operation
b) Configured operation
3.1.1 AUTO-CONFIGURED OPERATION
In auto-configured operation, which can be started with out programming aids, the SCU 800 evaluates
the temperatures of the connected sensor cables individually, according to pre-set parameters. Alarms
are only signalised by LEDs (alarm A, alarm B, fault) and relays (alarm A, alarm B, fault).
Note: These settings conform to a system response behaviour according to
EN54-5, class A1.
Initialisation is described in section 5.3 COMMISSIONING.
3.1.2 CONFIGURED OPERATION
Commissioning in the configured mode of operation requires a PC or Notebook and the terminal
programme LISTterm. This mode of operation allows the programming of sensors in a specific order,
the definition of up to 64 alarm sections, the setting of individual thresholds for each alarm section and
other project specific settings.
Note: this configuration mode is only available for SCU800 software versions
V1.1 or higher and LISTterm version V1. 0 or higher.
Programming can only be made by trained personnel and is described in the
extended commissioning manual for a δ-LIST system 60T0 4.
In the configured mode the SCU800 can also be integrated into a networked system with either a sensor
control master SCM4000 or with the connection to any other host (alarm control panel, SCADA system,
PLC, etc.).
Interfacing is via a predefined protocol and either a by RS485 or TTY current loop serial interface.
( 4. .3.5 COMMUNICATION)
For the connection to other systems, protocols like BITBUS, optical fibre, Ethernet, etc., are available on
request.
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SCU800-03 & SEC15 δ-LIST Manual
3.2 THE SCU'S ETHOD OF OPERATION
3.2.1 EASURING CYCLES
The SCU 800 executes measuring cycles in defined intervals. A measuring cycle consists of the
addressing of all sensors, reading of the temperature values of all measuring points and the subsequent
evaluation of the data. In auto-configured mode a new measuring cycle is started every 10 seconds
3.2.2 TE PERATURE EVALUATION
The reading of a temperature from a measuring point is followed by various calculations.
At first the plausibility and checksum of the temperature is tested. If there are discrepancies another
measurement is made. If the measurement is invalid a fault alarm is set.
All valid measurements are evaluated on two alarm criteria.
●A maximum temperature alarm is given if the temperature (T_act) exceeds the set level
TKRITA. This threshold is fixed at 50°C.
●A differential (rate of rise) alarm is given if the differential temperature (T_dif) exceeds the set
level TKRITD. This threshold is fixed at ,8°.
The differential temperature T_dif(n) is calculated according to the following formula:
T_dif(n) = T_act(n) - T_ref(n) - DRIFT
where: T_act(n) = actual measured temperature value of measuring point n
T_ref(n) = calculated differential temperature value of measuring point n
DRIFT = correction value calculated from the average temperatures
3.2.3 REFERENCE PROFILE
The reference temperatures (T_ref) of all of the measuring points (= reference profile), are gradually
adjusted to the actual temperatures to compensate for natural temperature variations (e.g. day, night,
seasons). The calculation interval for the reference profile and therefore the update rate, is set to meet
the response behaviour for thermal detectors.
3.2.4 DRIFT
Even temperature changes for all measuring points is accounted for by the DRIFT. This value is
calculated during the measurements and between the reference profile calculations, thus providing a
high system sensitivity of the without the risk of false alarms even at large ambient temperature
variations.
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δ-LIST Manual SCU800-03 & SEC15
3.2.5 ALAR OUTPUT
An absolute fire alarm FIRE! - AT is set if the actual temperature (T_act(n)) of a measuring point
exceeds the maximum threshold. The LED ALARM A or ALARM B will be activated together with the
corresponding relay contact.
A differential fire alarm FIRE! - DT is set if the differential value (T_dif(n)) of a measuring point
exceeds the differential threshold. The LED ALARM A or ALARM B will be activated together with the
corresponding relay contact.
An alarm is only set if a warning was given during the previous measuring cycle and the temperature did
not fall below the warning threshold afterwards.
3.2.6 ALAR -SIGNALLING
Two alarm LEDs (6.1 DISPLAY) and two alarm relays (4. .3.3 ALARM RELAYS) are dedicated to the
two sensor cable connections. An alarm in cable 1 will activate relay AL1 and LED A, respectively an
alarm in cable will activate relay AL and LED B.
3.2.7 CO UNICATION INTERFACES
The SCU 800 has one serial interface. It can be used as a RS- 3 interface for programming or as a
protocol interface to other systems and is available as a 9-pin SUB-D connector (ST 4). ( 4. .3.8
RS 3 INTERFACE)
When using the SCU 800 as a slave in a master-slave system, either a RS485 or TTY current loop
interface can be used. The signals for these interfaces are on terminals COM+ and COM-. ( 4. .3.5
COMMUNICATION)
Interface selection between RS 3 and RS485 (TTY) takes place via a bridge in the connector ST4.
The interface type RS485 or TTY is determined by the component assembly (standard assembly is
RS485). ( 4. .3.8 RS 3 INTERFACE)
Further information on the serial ports and on protocols are to be found in the extended commissioning
manual for a δ-LIST system 60T0 4.
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