microBlox® Transmitter/Alarm Carrier
Model uBTA-H-1MR/uBTA-H-1SR/uBTX-H-1
Acromag, Inc. Tel: 248-295-0880
- 19 -
http://www.acromag.com
- 19 -
https://www.acromag.com
TROUBLESHOOTING
Diagnostics Table
Before attempting repair or
replacement of this carrier, be sure
that all installation and
configuration procedures have
been followed and that the carrier
is wired properly. Verify that 6-
32V power is applied to the carrier.
Verify that any input module
plugged into this carrier is
operating properly.
If you still have a problem after
checking your power, your wiring,
and your module, and after
reviewing this information, or if
other evidence points to an
unknown problem with the carrier,
an effective and convenient fault
diagnosis method is to exchange
the questionable carrier or module
with a known good unit.
Acromag’s Application Engineers
can provide further technical
assistance if required. Repair
services are also available from
Acromag.
POSSIBLE CAUSE
POSSIBLE FIX
Green RUN LED of Carrier
does not light…
Is Power ON at the Carrier? Is a
module plugged into the carrier?
Check power to the carrier. The Green PWR
LED will be ON if a module is plugged in and
unit is powered?
The plug-
in Module’s
+3.3V rail
drives this LED and has failed, or
the carriers 5V power to the
module has failed.
Check power to the carrier which drives 5V
power to the module. The green LED is
sourced by the module’s 3.3V rail. Check if
the module is bad by plugging-in a known
good module. Return failed modules for
repair or replacement. If the module is
good, the carrier’s power converter may be
bad and you can return it for repair or
replacement.
Blue BLE LED of Carrier does not light
…
Cannot Communicate with Module Using Bluetooth wireless technology
…
Is the BLE jump wire installed at
TB2?
Is the BLE jump-wire connected
between the wrong TB2
terminals?
Check your TB2 connections. A wire jumper
should be inserted between the first two
terminals of TB2, which turns the BLE LED
ON and allows you to link to the plug-in
module using the Agility mobile app to
accomplish alarm reconfiguration.
Unit Fails to Start-up or
Initialize…
Carrier input power voltage is
below 6V, or the input supply is
current-limited below twice the
module/carrier current draw and
has shut down.
Check your power voltage and capacity and
make sure that it is at least 6V and of
sufficient current capacity (refer to Power
and make sure the supply current capacity
is twice the max current draw of your
application).
Input
Polarity is Wrong…
Are your input terminals
reversed? The unit has reverse
polarity protection to 60V.
Check your input (field) wiring and observe
proper polarity. Voltage is positive and
current is input at the IN+ terminal, while
voltage is negative and current is returned
at the IN- terminal.
Your uB Module Does Not Appear to Work in This Carrier
Is your module a Model
uB45-B?
The uB45-B frequency model is not
compatible with this carrier for alarms, but
permissible for transmitter functionality.
Is your module Bluetooth
wireless technology enabled?
Only uBxx-B models with Bluetooth wireless
technology may be used in this alarm
carrier. Optionally, for transmitter-only
operation, fixed range uB models with 0-5V
output may be used to convert their output
voltage to output current on this carrier.