Autronica AutroSafe BSD-321/EX User manual

P-BSD321/EX/CE 050310 Protecting life, environment and property...
Declaration of conformity and instructions
Features
• Interfaces various types of flame and gas detectors
with the AutroSafe I
ntegrated Fire and Gas Detection
System
• The AUTROFIELDBUS address and protocol type
are easily defined by means of switches
• RS-485 connection to detectors
• Built-in protocol converters
• Trending and maintenance facilities
• Approved by NEMKO
• EEx de version for mounting in hazardous areas:
zone 1 and 2
Application / Description
The BSD-321/EX can be configured to interface
various types of detectors into the AutroSafe Inte-
grated Fire and Gas Detection System.
BSD-321/EX contains a protocol converter for the
specific type of detector to be interfaced. All events
such as alarms, prealarms and fault warnings are
transmitted to the AutroSafe Integrated Fire and Gas
Detection System.
Depending on the specific detector, analogue read-
ings of gas concentration, for example, are also
transmitted for trending and maintenance purposes.
The built-in short-circuit isolator of AUTROFIELDBUS
will, together with the ring topology, ensure that neither
a single short-circuit nor a wire break will cause loss of
functionality.
Furthermore, the BSD-321/EX provides optional
AUTROFIELDBUS earth fault detection.
The BSD-321/EX basic model has RS485 communi-
cation ports for interfacing field equipment.
There can be a maximum of 31 BSD-321/EX units on
each AUTROFIELDBUS ring.
Overview Protocol Type and Interface Switches
Settings
The AUTROFIELDBUS address and type of
protocol/detector are defined by on-board rotary
switches.
Type of interface Switch
setting
1)
Max no of
units/
BSD-321
AutroPath Pulsar,
Open Path Gas Detector
70 16
SafeEye series 200/300,
Open Path Gas Detector
71 16
AutroFlame CCTV Flame
Detector and Video Switches
72 27 camera
2 video
switches
Kidde Fenwal AnaLaser II HSSD 73 16
1) To select protocol type: Set address switches according to
table, then press reset button. After choosing protocol set
the address switches to the actual address in the range of
1-31.
AutroSafe AUTROFIELDBUS Protocol Converter EEx de BSD-321/EX

AUTROFIELDBUS Protocol Converter, BSD-321/EX
Autronica Fire and Security AS
Fire and Security, Trondheim, Norway. Phone: + 47 73 58 25 00, fax: + 47 73 58 25 01
Oil & Gas, Stavanger, Norway. Phone: + 47 51 84 09 00, fax: + 47 51 84 09 99
Maritime Sales, Spikkestad, Norway. Phone: + 47 31 29 55 00, fax: + 47 31 29 55 01
Visit Autronica Fire and Security’s website: www.autronicafire.com
Technical Specifications
Weight (g)
Housing material Stainless steel SS 316L
Mounting Wall bracket
Power supply 18-32VDC
Current consumption Typically 150-200 mA at 24VDC
Temperature range -20 to +65 °C (T5)
-20 to +70 °C (T6)
Humidity 10% - 95%
Degree of protection IP 66, IP 67
Approvals CE, CENELEC EX
Interface to detectors Two-wire multidrop RS485
Communication loop AUTROFIELDBUS
Cable terminals
Cable AUTROFIELDBUS Refer to specification for AutroSafe
Cable RS485 Twisted pair, shielded cable
Maximum 100Ωresistive loss
Maximum total length 1200m
Maximum cable capacitance 150 nF
Debug and download
connector
MTA-style, cable XJA-029
Notified body NEMKO-Oslo-Norway ID No. 0470
EC-type examination
certificate
NEMKO 05ATEX1074
Directives and standards 94/9EC (ATEX)
EN 50014
EN 50018
EN 50019
89/336/EEC (EMC)
Emission: EN 50081-1:1992
Immunity: EN 50130-4: 1995
EN 61000-6-2:2001
EN 61000-6-3:2001
EN 61000-6-4:2001
EN 60945:2002
IEC 6533, ed.2
EN 54-2:1997
EN 54-2:1997
EN 54-2:1997
IACS E10:2001
Ex parameters II 2 G EEx de T5-T6 IIC
Order Numbers
Order number Description
116-BSD-321/EX AUTROFIELDBUS Protocol Converter for
hazardous areas
Optional
Order number Description
116-BSD-321/1 AUTROFIELDBUS Protocol Converter spare
part
Gland M25, EEXe 66571-071.2500
Gland M20, EEXe 66571-071.2000
116-6370-008.0030 O-RING NBR70 120,32X2,62MM
Connections / Dimensions / Mounting
Removal of top cover is recommended done by oil filter
wrench type tool.

AUTROFIELDBUS Protocol Converter, BSD-321/EX
Autronica Fire and Security AS
Fire and Security, Trondheim, Norway. Phone: + 47 73 58 25 00, fax: + 47 73 58 25 01
Oil & Gas, Stavanger, Norway. Phone: + 47 51 84 09 00, fax: + 47 51 84 09 99
Maritime Sales, Spikkestad, Norway. Phone: + 47 31 29 55 00, fax: + 47 31 29 55 01
Visit Autronica Fire and Security’s website: www.autronicafire.com
Overview – Typical Installation
AutroCom
BSD - 340
BSD - 340
BSD - 340
Flame -
Detector
BS - 320
Gas -
Detector
Power
FireBrigade Msg
FireVentActivated
FireExt Activated
0
ALAR
M
A
LARMALAR
M
A
LARM
?
C
9 8 7
6
5 4
3
2 1
SilenceBuzzer
Silence Sounders
Rese
t
Mor e Al a r m s
Prewarning
EarlyWarning
SystemFaul
t
Function Disabled
Tes
t
Faul
t
S
elf
V
erify
General A larm
EAU - 321
EAU - 340
AutroCom
BSD - 321
BSD - 321
AUTROFIELDBUS
BSD - 321
CCTV
BS - 320
Analaser
HSSD
Power
FireBrigade Msg
FireVentActivated
FireExt Activated
0
ALAR
M
A
LARMALAR
M
A
LARM
?
C
9 8 7
6
5 4
3
2 1
SilenceBuzzer
Silence Sounders
Rese
t
Mor e Al a r m s
Prewarning
EarlyWarning
SystemFaul
t
Function Disabled
Tes
t
Faul
t
S
elfVerify
General A larm
EAU - 321
EAU - 341
Gas -
Detector
SafeEye
OPGD
RS-485
RS-485
RS-485
BSD - 340 BSD - 321
RS-485
AI-500
Gas -
Detector
Pulsar
OPGD
HUB
V
ideo
switch
Termination
The BSD-321/EX has fixed terminal blocks.
Termi-
nal
Term
size
Function
1 4 mm
2
AutroFieldBus A
2 4 mm
2
AutroFieldBus A’
3 4 mm
2
Cable screen
4 4 mm
2
RS485_A+ Port 1
5 4 mm
2
RS485_A+ Port 1
6 4 mm
2
RS485_B- Port 1
7 4 mm
2
RS485_B- Port 1
8 4 mm
2
Signal reference port 1 (Cable screen)
9 4 mm
2
Signal reference port 1 (Cable screen)
10 4 mm
2
AutroFieldBus B
11 4 mm
2
AutroFieldBus B’
12 4 mm
2
Cable screen
13 4 mm
2
RS485_A+ Port 0
14 4 mm
2
RS485_A+ Port 0
15 4 mm
2
RS485_B- Port 0
16 4 mm
2
RS485_B- Port 0
17 4 mm
2
Signal reference port 0 (Cable screen)
18 4 mm
2
Signal reference port 0 (Cable screen)
19 10 mm
2
+24V Input
20 10 mm
2
0V Input
21 10 mm
2
Instrument Earth Common
4 mm
2
10 x PE on earth bar
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
1234567 1234567
Reset switch
Address switches
ON ON
S1 S2
BCD
HIGH
BCD
LOW
PWR FLT. ST0 TX1 RX1 TX0 RX0 AFB: TX RX ST1
Obtaining RS-485 using the BSD-321 RS-422
connections
RS-485 is pre connected on the BSD-321/EX by the
connection of the BSD-321 RS-422 ports in RS-485
mode. This has been done by connecting the A+
and the X+ signal together, and the B- and the Y-
signal. The resulting RS-485 signal names are
therefore A+ and B-.
LED Indicators
PWR green Power & Heartbeat
FLT red BSD-321 Fault
ST0 yellow AFB Message processed
TX1 green Port 1 Transmits
RX1 red Port 1 Receives
TX0 green Port 0 Transmits
RX0 red Port 0 Receives
TX green AFB Transmits
RX red AFB bus traffic
ST1 yellow AFB Message received
General DIPswitch settings for all applications:
S1:
1 ON DC bias of RS422 RX Port 0
2 (*) Enable RS422 RX Earth Fault sensor Port 0
3 ON Enable RS-422 RX Port 0
4 OFF Enable RS-232 RX Port 0
5 ON Enable RS-485 Port 0
6 ON 120ΩEOL resistor of RS-422 RX Port 0
7 OFF 120ΩEOL resistor of RS-422 TX Port 0
S2:
1 OFF DC bias of RS422 TX Port 0
2 (*) Enable RS422 TX Earth Fault sensor Port 0
3 ON Enable RS-422 RX Port 1
4 OFF Enable RS-232 RX Port 1
5 ON Enable RS-485 Port 1
6 (*) 120ΩEOL resistor of RS-422 RX Port 1
7 OFF 120ΩEOL resistor of RS-422 TX Port 1
(*): Refer to text for switch position

AUTROFIELDBUS Protocol Converter, BSD-321/EX
Autronica Fire and Security AS
Fire and Security, Trondheim, Norway. Phone: + 47 73 58 25 00, fax: + 47 73 58 25 01
Oil & Gas, Stavanger, Norway. Phone: + 47 51 84 09 00, fax: + 47 51 84 09 99
Maritime Sales, Spikkestad, Norway. Phone: + 47 31 29 55 00, fax: + 47 31 29 55 01
Visit Autronica Fire and Security’s website: www.autronicafire.com
The BSD-321 is intended for use with 24VDC power
supplies. It may be used in single or dual earth sys-
tems.
19
20
21
BSD-321/Ex
+24V
0V
DC power supply
+24 in
0V in
IE
PE-bar
BSD-321/Ex power,
Single earth system
19
20
21
BSD-321/Ex
+24V
0V
DC power supply
+24 in
0V in
IE
PE-bar
BSD-321/Ex power,
Dual earth system
System IE
System PE
For further earth & shielding information reference
to the System Description AutroSafe IFG.
Order number: 116-P-ASAFE-IFG/XE.
RS-485 Detector interface with loop-back
4
6
8
13
15
17
AA
BB
A
B
ref
BSD-321/Ex detector
AA
BB
A
B
ref
BSD-321/Ex detector
A
B
RS-485 cable shielding
RS-485 cable shielding
RS-485 earth
fault sensor
RS-485 earth
fault sensor
RS-485 branch connection (local loop-back):
RS-485 loop connection (remote loop-back):
Port 0
Port 1
Port 0
Port 1 4
8
13
15
17
6
Loop-back of RS-485 can be done either locally on
BSD-321 or remotely with loop to/from detector.
The BSD-321 requires a RS-485 loop-back connec-
tion. Loop-back is used to give increased system
safety. The extra port verifies the communication
path. This also opens the option to using RS-485
loop connection for dual communication paths to the
detectors.
Loop-back for optimum safety is required for SIL2
applications (To be approved).
Switches S1 and S2 must be set accordingly for
correct termination.
Local loop-back:
• Set S2-6 OFF (Disable EOL resistor for port 1)
• The detector at the other end of the RS-485 bus
must enable its EOL resistor
Remote loop-back:
• Set S2-6 ON (Enable EOL resistor for port 1)
• None of the detectors must have EOL resistors
Earth fault detection on the RS-485 bus
Earth fault detection is enabled on the RS-485 link
by when S2-2 is ON. The monitoring circuit monitors
unintended connection between the A+ wire (inter-
nal connector 17) and the port 0 ref wire (connector
28), or between the B- wire (internal connector 18)
and the port 0 ref wire (internal connector 28).
The ”ref” signal on the detector
The ref signal on the detector is the detectors
”common” signal for the RS-485. This signal may be
connected to IE (or earth in single earth systems),
to the detectors power supply 0V or it may be iso-
lated (floating).

AUTROFIELDBUS Protocol Converter, BSD-321/EX
Autronica Fire and Security AS
Fire and Security, Trondheim, Norway. Phone: + 47 73 58 25 00, fax: + 47 73 58 25 01
Oil & Gas, Stavanger, Norway. Phone: + 47 51 84 09 00, fax: + 47 51 84 09 99
Maritime Sales, Spikkestad, Norway. Phone: + 47 31 29 55 00, fax: + 47 31 29 55 01
Visit Autronica Fire and Security’s website: www.autronicafire.com
All detectors on the same RS-485 bus must have
the same reference, and this reference shall be the
connections to BSD-321/Ex’s reference. Both RS-
485 ports are isolated to allow a floating reference.
It is essential that the connection to the RS-485
shield be done only in one point in the system if the
detectors are not 100% isolated from each other
(individual isolated detector power supplies and no
earth reference).
Schematic of port equivalent:
TX_422_X+ Port0
Isolation
TX_422_Z- Port0
RX_422_A+ Port0
RX_422_B- Port0
Signal Reference Port0
Instrument Earth Port0
+5v_SER_0
Earth Plane 0
Earth fault detection on AUTROFIELDBUS
Earth fault detection is enabled on the
AUTROFIELDBUS (AFB) interface. Note that Earth
fault detection can only be enabled on one unit on
each cable segment on AFB. Cable segments are
isolated by using fibre modems (BSL-321/322) or
boosters (BSL-325).
In systems with only one cable segment the AFB
earth fault detection shall be done by the EAU-341
unit. Earth fault detection requires a connection be-
tween internal connectors 11 and 12, and at the
same time the IE connector is connected to the
same earth system that an optional cable shielding
is connected to.
1
2
10
11
i11
i12
A
A’
BSD-321/Ex
B
B’
*
21 IE
AFB earth
fault sensor
Previous AFB unit
Next AFB unit
A
A’
B
B’
IE
Previous AFB unit
Next AFB unit
A
A’
B
B’
*
IE
Previous AFB unit
Next AFB unit
*: Connect if AFB earth fault detection is required.
The connection is internal, i.e. inside the Ex d encapsulation.
Connectors prefixed with ”i” in the figure refers to internal numbering.
This feature should be used on only one BSD for each cable
segment. Detection will de done towards the IE terminal
AFB cable with continuous shield
AFB cable with discontinuous shield
AFB cable without shield
1
2
10
11
i11
i12
BSD-321/Ex
*
21
AFB earth
fault sensor
1
2
10
11
i11
i12
BSD-321/Ex
*
21
AFB earth
fault sensor

AUTROFIELDBUS Protocol Converter, BSD-321/EX
Autronica Fire and Security AS
Fire and Security, Trondheim, Norway. Phone: + 47 73 58 25 00, fax: + 47 73 58 25 01
Oil & Gas, Stavanger, Norway. Phone: + 47 51 84 09 00, fax: + 47 51 84 09 99
Maritime Sales, Spikkestad, Norway. Phone: + 47 31 29 55 00, fax: + 47 31 29 55 01
Visit Autronica Fire and Security’s website: www.autronicafire.com
Handling
Due to the weight and nature of the enclosure precautions have to be taken to avoid damages to the equipment
and the individual. The Exd enclosure flamepaths must be securely protected to avoid damage.
Installation / Dismantling
When mounting the enclosure ensure that the mounting support is able to take the full weight of the enclosure. If
any twisting or bending of the enclosure bracket is likely, use washers or packing plates as necessary between
the mounting support and the bracket before the screws or nuts are tightened. When connecting cables, ensure
the incoming cables/wires are isolated from power sources. Ensure that the glands used are securely tightened
and that they are approved according to ATEX. Thereafter connect the internal (alt. External) earth connections.
Tighten the compression nut on the glands used. All other openings to be blinded using an ex (ATEX) approved
blind plug. When removing the enclosure, the same precautions apply as those observed when mounting the
enclosure.
Inspection / Maintenance
This enclosure is made of acid-resistant stainless steel and thereof not subject to corrosion. We recommend
that maintenance is performed in accordance with the IEC 60079-17/60079-1 standards. If the enclosure needs
to be opened, proceed as follow:
1. Disconnect the power source.
2. Unscrew the external fixing screw on the exd-part.
3. Clean and inspect the threads (flamepath) on the bottom part and inside the tube.
4. Inspect the o-ring on the bottom part, we recommend that this o-ring is replaced upon every opening of
the enclosure, note new o-ring to be purchased by Autronica.
5. Before assembly the o-ring and threads to be protected with copper grease or other approved greases.
6. Connect the tube to the bottom part and assure that the unbrako fixing screw is firmly tightened.
If any damage is found, the enclosure should be put out of service and the manufacturer contacted.
Managing Director, Mr Frode Lund