InteliATS
NT
PWR, SW version 2.5, ©ComAp – May 2015 36
IA-NT- PWR-2.5-Reference Guide.pdf
The I-LBA module ensures min. 350ms voltage dip under following conditions:
RS232 and other plug-in module are connected.
Voltage before dip is 12V and after 350ms the voltage recovers to min. allowed voltage 5V.
The I-LBA enables controller operation from 5VDC (for 10 to 30 sec).
The wiring resistance from battery should be up to 0.1 Ohm for I-LBA proper function.
NOTE:
I-LBA may not eliminate voltage drop when used with low temperature (-40°C) version of controller
and display heating element is on (below 5°C). Current drain of heating element exhausts LBA
capacitors very fast
Power supply fusing
A one-amp fuse should be connected in-line with the battery positive terminal to the controller and
modules.
Fuse value and type depends on number of connected devices and wire length.
Recommended fuse (not fast) type - T1A. Not fast due to internal capacitors charging during
power up.
Binary output protections
NOTE:
Do not connect binary outputs directly to DC relays without protection diodes, even if they are not
connected directly to controller outputs.
Grounding
To ensure proper function:
Use as short as possible cable to the grounding point on the switchboard
Use cable min. 2,5mm
2
The “-“ terminal of the battery has to be properly grounded
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