InteliATS
NT
STD, SW version 2.0, ©ComAp – June 2010 27
IA-NT- STD-2.0-Reference Guide.pdf
AMF + no battery operation
3xU
M
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Specification
It is possible to operate controller without a battery supplying the controller. Fo
following conditions have to be fulfilled:
r such operation the
switched between
ing) according to
m for more details
ontacts have to be used for the gen-set start command. Setpoint
locked when GCB is closed, so the power
e on the mains bus appears – protection against
voltage changes arise on Mains.
to Mains when GCB is opened.
/DC power supply source is switched to gen-set
supplying controller disappears
upplied from running gen-set
• d, waits for Gen OK conditions
B closed and the 24V AC/DC power supply source is locked in gen-set
If Mains
• GCB is opened, 24V AC/DC power supply source is unlocked and switched to Mains
• MCB is closed
• Gen-set is stopped
Hardware requirements
1x IA-NT STD
1x 24V/2.5A AC/DC power supply
• Controller is supplied from 24V/2.5A AC/DC power supply whose source is
Mains and Gen-set via relay (another contacts of the relay for GCB switch
the Mains state (OK/Fault). See the schematic diagra
• Normally closed relay c
“GenStart Logic” has to be set to CLOSE-OFF
• Switching of the 24V AC/DC power supply is b
supply is not switched to Mains if voltag
ng” of the power supply when“Flip-floppi
It (power supply) will be switched
Then in the case of Mains failure:
• 24V AC
• Voltage
• Gen Start relay is deenergized and contacts closed
started • Gen-set is
• Controller is s
Controller is initialize
• MCB is opened, GC
position.
returns:
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