InteliATS
NT
PWR, SW version 1.0, ©ComAp – March 2009
68
IA-NT- PWR-1.0-Reference Guide R1.pdf
Mains and generator
Nominal
frequency
50-60Hz
Frequency measurement tolerance
0,2Hz
Current inputs
Nominal input current (from CT)
5 A
Load (CT output impedance)
< 0,1
Ω
CT input burden
< 0,2 VA per phase (In=5A)
Max. measured current from CT
10 A
Current measurement tolerance
2% from the Nominal current
Max. peak current from CT
150 A / 1s
Max.
continuous
current 12
A
Voltage inputs
Measuring voltage range
0 – 277 VAC phase to neutral
0
–
480
VAC
phase
to
phase
Maximal measured voltage
340 VAC phase to neutral
600
VAC
phase
to
phase
Input
resistance
0.6
M
Ω
phase to phase
0.3 M
Ω
phase to neutral
Voltage measurement tolerance
2 % from the Nominal voltage
Overvoltage
class
III
/
2
(EN61010)
Binary inputs and outputs
Binary inputs
Number
of
inputs 7
Input
resistance
4,2
k
Ω
Input
range
0-36
VDC
Switching voltage level for close contact indication
0-2 V
Max voltage level for open contact indication
8-36 V
Binary open collector outputs
Number
of
outputs
7
Maximum
current
0,5
A
Maximum
switching
voltage
36
VDC
IL-NT RS232 interface (optional card)
Plugs into IA-NT controller COMMUNICATION MODULE port.
Maximal
distance
10m
Maximum Speed
Up to 57.6 kBd (DIRECT), 38.4kBd Analog
modem, 9.6 kBd digital modem, 57.6 kBd (MODBUS)
Recommend external converter:
ADVANTECH – ADAM 4520: RS232 to RS422/485 converter, DIN rail, automatic RS485 bus
supervision, no external data flow control signals, galvanic isolated.
Recommended internal converter:
ADVANTECH – PCL-745B or PCL745S: Dual port RS422/485 Interface card, automatic RS485 bus
supervision, no external data flow control signals, galvanic isolated
N
OTE
:
For details on all IA-NT extension and communication modules see IL-NT, IC-NT-Accessory Modules
manual.
