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© Copyright 2023 ABB. All rights reserved.
Millennium SC_MAN
Rev 2.0
Figure 24 RIC ID Setting
•
Separate BJC types control different rectifier types
•
BJC1_MSC
CC109167771
for ABB(AT&T) type rectifiers
•
BJC2_MSC
CC109167788
for non
-
ABB(AT&T) type rectifiers
•
A MSC or MSC without M2 each accepts up to 2 BJC cards
•
1 or 2 BJCs may be installed
•
Each BJC assigns a rectifier ID to each of its 8 rectifier positions.
•
The first Rectifier IDs of a BJC is set with a rotary switch and a jumper on the BJC.
•
The rotary switch may be set from 0 to 9.
•
Jumper position
“0”
or
“10”
adds 0 or 10 to the rotary switch setting.
•
1 is the lowest valid rectifier ID (0 is an invalid rectifier ID)
Single BJC Type Systems
Plants with only ABB(AT&T) type rectifiers or with only non
-
ABB(AT&T) type rectifiers will use a
single type of BJCs
-
either all BJC1_MSCs or all BJC2_MSCs.
In this case, set BJC First Rectifier IDs so that they are consecutive.
Example:
12 rectifiers are numbered 1 through 12
First IDs for BJCs:
1
st
BJC (position A): 1 (rotary switch = 1, jumper = 0.
Positions 1 through 8 connect to rectifiers 1 through 8.
2
nd
BJC (position B): 9 (rotary switch = 9, jumper = 0.
Positions 1 through 4 connect rectifiers 9 through 12.
Positions 5 through 8 (IDs 13
-
16) are available for future use.
Usual First IDs in Single BJC Type Systems
BJC
First ID
Rectifier IDs
1
st
1
1
-
8
2
nd
9
9
-
16
