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microBlox® Transmitter/Alarm Carrier
Model uBTA-H-1MR/uBTA-H-1SR/uBTX-H-1
Acromag, Inc. Tel: 248-295-0880
- 26 -
http://www.acromag.com
- 26 -
https://www.acromag.com
Power
Connect power at TB3-1/2 (+) and
TB3-3/4 (-), and/or via the DIN Rail
Bus AT TB7.
The unit can be redundantly
powered by connecting power to
both the power terminals on the
unit at TB3 and at the DIN rail bus
terminal TB7 (these power inputs
are diode-coupled to the same
point in the circuit).
CAUTION:
A terminal voltage at or
above 6V min should be maintained
to the unit during operation. Do
not exceed 36VDC peak to avoid
damage to the unit.
Observe proper polarity. Reverse
voltage protection up to 60V is
built-in. Your supply should be
rated at twice the maximum
current draw to allow for potential
inrush current.
Note:
It is recommended that
supplies capable of supplying more
than 2.5A to the carrier be fused
with a surge tolerant fuse.
Connect 6-32V DC SELV (Safety Extra Low Voltage), up to 1.7W including plug-in
module. Your current draw is dependent on your carrier model, its relay type,
whether you use the transmitter outputs, your plug-in module, and your voltage
level. You can approximate power consumption by combining power items you
are using and this summation applies quite well for supply voltages from 9-32V.
POWER ITEM
AVG REQUIRED POWER AT SUPPLY
uBTX-H Base
0.080W
uBTA-H Base
0.108W
Dual Mechanical Relays
0.355W
Dual Solid-State Relays
0.109W
5mA Voltage Output
0.066W
20mA Current Output
0.348W
uB41 Input Module
0.266W
uB42 Input Module
0.659W
CARRIER
POWER REQUIRED BY ITEM
BY MODULE
AVG
MODEL
BASE RELAY V-OUT I-OUT
uB41
uB42
Ptot
uBTA-H-1MR
0.108
0.355
0.066
0.348
0.266
0.659
1.54
uBTA-H-1MR
0.108
0.355
0.066
0.348
0.266
0.659
1.14
uBTA-H-1SR
0.108
0.109
0.066
0.348
0.266
0.659
1.29
uBTA-H-1SR
0.108
0.109
0.066
0.348
0.266
0.659
0.90
uBTX-H-1
0.08
0
0.066
0.348
0.266
0.659
1.15
uBTX-H-1
0.08
0
0.066
0.348
0.266
0.659
0.76
The rightmost column represents typical average input power with a module
installed. A uB41 is used to represent a standard module load, while a uB42
represents the largest module load. For current, divide the Ptot figure for your
carrier model and module combination (last column above) by your supply
voltage to get your current ±5% for fully loaded conditions (see Tables below).
Multiply the Table currents below by 1.1 to get maximum current from 9-32V
(multiply it by 1.2 for maximum current at 6V)
:
w/uB41 uBTA-H-1MR
uBTA-H-1SR
uBTX-H-1
POWER
1.14W
0.90W
0.76W
SUPPLY
Fully Loaded Current Draw w/uB41
6V
191mA
150mA
127mA
9V
127mA
100mA
84mA
12V
95mA
75mA
63mA
15V
76mA
60mA
51mA
24V
48mA
37mA
32mA
32V
36m
29mA
24mA