Rev. BRA-v1_6_en
Astra-BRA
Addressable Relay Unit
User guide
This operating manual is intended to study the principle of operation, proper
use, storage and maintenance of the Astra-BRA addressable relay unit.The
manufacturer reserves the right to make changes to the design, firmware,
circuit solutions and product packaging that do not worsen its technical char-
acteristics, do not violate mandatory regulatory requirements, without prior
notice to the consumer.
Abbreviations
:
SLC
– Signaling line circuit;
ARM
– Monitoring software;
IU
-
indication unit Astra-863;
BRA
– Addressable relay unit Astra-BRA
Zone
– notification source;
Tutorial
- User guide built into the PKM Astra Pro or Astra-812 Pro setup
instructions (available on the website www.teko.biz);
Control Panel
–
control panel Astra-8945 Pro or Astra-812 Pro with firm-
ware version 5_0 and higher;
PKM Astra Pro
– Astra Pro monitoring software package (available on the
website www.teko.biz);
Keypad
–
Astra-814 Pro control keypad;
RPA
– signalling line extender "Astra-A RPA»;
LP
– Laser pointer Astra-942»;
NC
– normally closed;
NO
– normally open;
AL
– alarm loop.
1 Function
1.1
BRA is designed to control smoke ventilation dampers, fire dampers
of general ventilation, deluge dampers and other actuators powered by
220 V. The BRA is designed to operate in the SLC formed by the RPA.
1.2
BRA provides:
possibility to control the damper of fire dampers of types: electro-
mechanical with return spring, reversible, electromagnetic by command of
the Control Panel received via SLC;
monitoring the load of the relay for open and short circuits and trans-
ferring information about the integrity of the load line to the Control
Panel;
valve position control by limit switches;
LED indication of BRA operation, valve status, outputs and SLC;
Valve test
1.3
The BRA can operate in two modes:
“Valve” mode, in which the BRA implements special valve control algo-
rithms,
"Relay unit" mode, in which the BRA provides operation
one relay output with load circuit control.
In both modes, the BRA can operate with or without load continuity su-
pervision (depending on configuration)
1.4
The sources of notifications for the BRA are partitions of the Control
Panel.
1.5
BRA can only be controlled by one Control Panel.
1.6
BRA provides configuring of operating modes using the menu of the
PKM Astra Pro configuration module.
1.7
The BRA (signal part) is powered from the SLC power line (terminals "+"
and "-"), the power part (L1, N, L2) - from the 220 V AC network.
1.8
The power supply of the power part of the BRA (relay, AL) is carried out
from the main (terminals L1, N) and backup (terminals L2, N) 220 V power
supplies. In the absence of the main power supply, the BRA automatically
switches to the backup; when the main power is restored - switches to the
main power.
Attention!
ONLY 1 AND THE SAME PHASE CAN BE SUPPLIED TO INPUTS L1
AND L2! SUPPLY OF DIFFERENT PHASES IS FORBIDDEN!
2 Specifications
Power supply voltage, V
:
- power unit ..................................................................from 187 to 242 AC
- signal part (from SLC) ............................................... from 6.0 to 27.6 DC
(power and signal parts are galvanically isolated)
Current consumption from 220 V, mA, not more .................................... 20
Current consumption from SLC, mA, not more ...................................... 0.5
Power consumption from 220 V (excluding consumption
valve),W, not more ................................................................................... 5
SLC interface cable length from BRA to RPA, m, max ....................... 1000
Number of relays ..................................................................................... 1
Relay specification (in "Relay unit" mode) (terminals
RAB and Ncl)
:
Maximum switching voltage, V.............................................................. 250
Maximum switching current at a voltage of 250 V, A ............................... .1
Minimum switching current, mA *...................................... .................... 0.6
AL Specification
(terminals
+Zone1- , +Zone2-, +TST-
):
Standby voltage, V*...................................... ......................... from 8.5 to 14
ripple voltage value on terminals AL, mV, no more ................................ 50
Short circuit current AL, mA, no more .................................................... 20
AL integration time, msec ...............................................................
300±30
AL wire resistance (excluding remote element), Ohm, no more ........... 150
Leakage resistance between loop wires or each
wire and "Ground", kOhm, not less than .................................................... 50
Loop resistance, kOhm ....................................................... see tables 7, 8
Boot time, sec, not more ........................................................................ 10
Overall dimensions, mm ........................................................ 216
×135×39
Weight, kg, not more .......................................................................... 0.35
Operation conditions
Temperature range
, ºС ...................................................... from -30 to +55
Relative humidity ..................................................... up to 93 at +40
0
С
without moisture condensation
3 Delivery set
Relay unit wired address "Astra-BRA" ............................................ 1 pcs
Resistor 3.9 kOhm .......................................................................... 6 pcs
Screw ............................................................................................. 4 pcs
Dowel ............................................................................................. 4 pcs
Sticker ............................................................................................ 2 pcs
4 Design
4.1
Structurally, the BRA is made in the form of a unit consisting of a base
and a removable cover. PCB with radio elements is mounted inside the
unit.
4.2
The PCB has indicators for monitoring the state of power supply and
outputs of the BRA:
-
OPERATING
LED
– is for indicate the power supply status of the BRA
-
OUTPUT
LED - to display the status of the valve control outputs;
-
STATUS
LED - to display valve position and faults;
-
SLC
LED - status indication SLC BRA with RPA.
4.3
The PCB has a tampering switch to control the state of the case
(opened / closed).
4.4
The PCB has screw terminal units, the purpose of which is given in
the table 1.
Table 1
Terminal
Terminal function
А, В
Connection to the data L1 (L2) RPA
+, -
Connection to the power L1 (L2) RPA
+Zone1-
Connecting the valve limit switch
+Zone2-
Connecting the valve limit switch
+TST-
Connecting the TEST button
РАБ
Valve connection
N
кл
ИСХ
L1, N
Input for connecting the main power supply 220 V
L2, N
Input for connecting the main power supply 220 V
________________________________
* for relay in load circuit monitoring mode
