ABB ACA 6 Series, Hardware Manual

Page: 73 / 102

Chapter 3 – Electrical Installation
ACA 6xx Sections and ACS/ACC 6x7 (132 to 3000 kW) Frequency Converters 3-31
Drive Control Unit
NDCU-2x The Drive Control Unit NDCU-21 containing an NAMC-21 board and
an NIOC-01 board is shown below. NDCU-22 with NAMC-22 and
NIOC-01 looks similar.
6399 3051
1 V REF
RS-485
24 V
IN
DDCS
(AMC-I/O)
NIOC-01
2
GND
3 AI1+
4
AI1-
5
AI2+
6 AI2-
7 AI3+
8
AI3-
9 AO1+
10 AO1-
11 AO2+
12 AO2-
1
DI1
2
DI2
3 DI3
4
DI4
5 DI5
6 DI6
7 24 DV
8 24 DV
9 DGND
RS-485
1 24 V
2 GND
3 24 V
4 GND
1
24 V
2 GND
1 R01 NC
2
R01 C
3 R01 NO
1 R02 NC
2 R02 C
3
R02 NO
1 R03 NC
2 R03 C
3 R03 NO
24 V
OUT
200 mA
RELAY
OUTPUT
1
RELAY
OUTPUT
2
RELAY
OUTPUT
3
NDCU-21
DIGITAL
INPUTS
ANALOG
INPUTS
&
OUTPUTS
1 24 V
2 0 V
1 24 V
2 0 V
3
24 V
4 0 V
1 3.6 V
2
GND
DDCS
(PC)
DDCS
(MSTR-FOLL)
DDCS
(I/O)
DDCSe
(APPLICATION
CONTROLLER)
PPCS
(INVERTER)
NiCd
BATT.
TXD RXD
RS-485 TERMINATION
X
5
X
5
TERMINATED
NOT TERMIN
RS-485
RS-485
(CONTROL
PANEL)
24 V
IN
24 V
IN
CH0
X27
X26
X25
X23
X24
V25
V26
X29
X28
X21
X6
V20
V19
CH3
V18
V17
CH2
V16
V15
CH1
X22
V14
V13
CH0
V12
V11
X4
X3
X2
X1
24 V
FAULT
5 V
WATCH
DOG
NIOC-01
NAMC-21
91
72
265
DRIVE CONTROL UNIT
NAMC-21
9
9
. .
.
. .
.
NAMC
NIOC
CPD 312
Control Panel
(with System
NLMD-01
Monitoring Display
Application
Program)
PDM code 00014221-B