InteliATS
NT
PWR, SW version 2.5, ©ComAp – May 2015 35
IA-NT- PWR-2.5-Reference Guide.pdf
Getting Started
How to install
General
To ensure proper function:
Wiring for binary inputs and analog inputs must not be run with power cables.
Binary inputs should use shielded cables, especially when length >3m.
CAUTION!
This device is dedicated for enviroment conditions type A. Usage of this device in enviroment
conditions type B can cause electromagnetic disturbance. In this case it can be demand to make
adequate steps to reduce this electromagnetic disturbance.
Power supply
To ensure proper function use min. power supply cable of 1.5mm
2
Maximum continuous DC power supply voltage is 36VDC. The InteliATS
NT
’s power supply terminals
are protected against large pulse power disturbances. When there is a potential risk of the controller
being subjected to conditions outside its capabilities, an outside protection devise should be used.
NOTE:
The InteliATS
NT
controller should be grounded properly in order to protect against lighting strikes!!
The maximum allowable current through the controller’s negative terminal is 4A (this is dependent on
binary output load).
For the connections with 12VDC power supply, the InteliATS
NT
includes internal capacitors that allow
the controller to continue operation if the battery voltages dip occurs. If the voltage before dip is 10V,
after 100ms the voltage recovers to 7 V, the controller continues operating. During this voltage dip the
controller screen backlight can turn off and on but the controller keeps operating.
It is possible to further support the controller by connecting the external capacitor and separating
diode or I-LBA module:
The capacitor size depends on required time. It shall be approximately thousands of microfarads.
The capacitor size should be 5 000 microfarad to withstand 150ms voltage dip under following
conditions:
Voltage before dip is 12V, after 150ms the voltage recovers to min. allowed voltage, i.e. 8V
NOTE:
Before the battery is discharged the message "Low BackupBatt" appears.
Or by connecting special I-LBA Low Battery Adaptor module:
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