ABB ACS800-67LC - Voltage and Current Measurement Unit NUIM-61 C;NUIM-10 C

Operation principle and hardware description 37
 Voltage and Current Measurement Unit NUIM-61C/NUIM-10C
The connectors of the Voltage and Current Measurement Unit NUIM-61C are shown
below.

DDCS communication
option module 3: RDCO
RMIO X39 for
control panel
connection
Optional module 1
Detachable I/O terminals
Optional module 2
LED indicators
24 VDC power
input
Optical link to AINT/NINT
board (or branching unit)
RDCU-12C
64531476
PPCS COMMUNICATION CHANNEL U / I MEASUREMENT
NUIM-61C
V41 V42
VOLTAGE AND CURRENT MEASUREMENT UNIT
1
POWER SUPPLY
X7
2 3 4 5 6
-15 V GND +15 V +24 V
X2
1
IU (A)
2
GND
X1
IW (C)
1
STATOR VOLTAGE MEASUREMENT U
NOM
= 690 V
X6
2 3 4 5 6
V (B)
W (C)
7
U (A)
1
NET VOLTAGE MEASUREMENT (GRID SUPPLY) U
NOM
= 690 V
X5
2 3 4 5 6
V (B)
W (C)7 U (A)
1
2
GND
VOLTAGE MEASUREMENT SETTINGS
CURRENT MEASUREMENT PHASE U (A) CURRENT MEASUREMENT PHASE W (C)
690 V 50 Hz Cut R80-R85 575 V 60 Hz Do not cut R80-R85
X4
EFC1
1
2
EARTH FAULT
EFC2
MAINS ON