InteliATS
NT
PWR, SW version 2.5, ©ComAp
– May 2015
71
IA-NT- PWR-2.5-Reference Guide.pdf
H
INT
:
Over- and undervoltage protection is evaluated according to
Basic Settings: ConnectionType
setting.
3Ph4Wire and 3Ph3Wire connections are evaluated according to Ph-Ph nominal voltage (NomVolts
Ph-Ph) and Split Phase and Mono Phase connections are evaluated according to Ph-N nominal
voltage (NomVolts Ph-N).
H
INT
:
To evaluate Mains > V and Mains < V the controller has implemented additional hysteresis.
If “Mains <V” <= 90% then hysteresis for “Mains <V” = ±4%
If “Mains >V” >= 110% then hysteresis for “Mains >V” = ±4%
If “Mains <V” >90% then hysteresis for Mains <V is calculated as 40% from (100 – “Mains <V”)
If “Mains >V” <110% then hysteresis for “Mains >V” is calculated as 40% from (100 – “Mains >V”)
Mains V Del
[s]
Delay for mains under voltage and overvoltage
Step:
0.1 s
Range:
0
– 600.0 s
Mains V Unbal
[%]
Threshold for mains voltage unbalance
Step:
1% of Nominal voltage
Range:
1
– 150%
Mains VUnb Del
[s]
Delay for mains voltage unbalance
Step:
0.1 s
Range:
0
– 60.0
Mains >Freq
[%]
Threshold for mains over frequency. All three phases are checked. Maximum out of three is used.
Step:
0.1% of Nominal frequency
Range:
50 (Mains <Freq)
– 150.0%
Mains <Freq
[%]
Threshold for mains under frequency. All three phases are checked. Minimum out of three is used.
Step:
0.1% of Nominal frequency
Range:
50%
– 150.0(Mains >Freq)%
Mains Freq Del
[s]
Delay for mains under frequency and over frequency
Step:
0.1 s
Range:
0
– 60.0 s
MCB Logic
[CLOSE-ON / CLOSE-OFF]
The set point affects the behavior of the output MCB CLOSE/OPEN
CLOSE-ON: When the output MCB CLOSE/OPEN is closed
– MCB should be closed.
CLOSE-OFF: When the output MCB CLOSE/OPEN is closed
– MCB should be opened.