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Presentation / operation
ABB Control - AC 31
Page 1-5
1SBC 260400 R1001-b
06.99
2.1. Central units with extensions
The 40 and 50 series. It’s possible to increase the number of inputs / outputs of the basic
central unit by adding up to 6 local extension units of either type, binary or analog (Figure 1-1).
2.2. Central units with CS 31 bus
The 50 and 90 series. It’s possible to increase the number of inputs / outputs of the basic
central unit by adding remote units. The central unit controlling the system is called the
MASTER central unit. The maximum bus length is
500 m
without an amplifier and
2000 m
with
3 amplifiers (1 NCB or NCBR unit enables bus amplification for 500 m).
The master central unit can manage up to
31 connection points
called SLAVES, such as:
- A remote unit with extension possibilities: a maximum of 6 extension units comprising of a
maximum of 8 analog input channels and 8 analog output channels
- A simple remote unit (without extension) with analog or binary inputs / outputs
- A remote TCAD display
- An ABB NCSA-01 variable speed drive interface
- A high speed counter unit
- A central unit (50 series with extension possibilities, 90 series and the previous 30 series)
- Or any other device which disposes of a CS 31 communication (see Figure 1-2).
Comment:
A slave fitted solely with binary channels occupies
1 connection point
.
A slave fitted with binary and analog channels occupies
2 connection
points
of the available
31.
The maximum number of remote ANALOG units depends on the MASTER central unit:
- 50 series: - a maximum of
31
remote analog input units
- a maximum of
31
remote analog output units
- a maximum of
15
extensible remote units (ICMK14F1) with analog input / output
exte
1
remote analog input / output unit (15 x 2 + 1 = 31)
- or a mixed binary / analog configuration within the previous limits
- 90 series: - a maximum of
12
remote analog input units
- a maximum of
12
remote analog output units
- or a maximum of
12
slaves with analog extensions
Other Option
: You have a possibility to use and configure the CS31 bus in Modbus
®
slave see
chapter 7 communication Modbus
®
.
2.3. Cabling techniques
Connecting a central unit without a remote unit is simple and corresponds to normal electrical
standards. The electrical connections of a AC 31 system which consists of remote units,
notably where there are numerous electrical cubicles, should adhere to the obligatory rules.
These rules are presented in chapter 4.
Summary of Contents for AC 31
Page 1: ...Technical Manual Advant Controller 31 40 50 Series 1SBC 260400 R 1001 b ...
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Page 45: ...Technical specifications Page 3 2 ABB Control AC 31 1SBC 260400 R1001 b 06 99 ...
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Page 85: ...Installation Page 4 2 ABB Control AC 31 1SBC 260400 R1001 b 06 99 ...
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Page 130: ...Programming ABB Control AC 31 Page 5 21 1SBC 260400 R1001 b 06 99 ...
Page 182: ...Communication ABB Control AC 31 Page 7 11 1SBC 260400 R1001 b 06 99 ...
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Page 218: ...AC 31 technical documentation ABB Control AC 31 Index Page 1 1SBC 260400 R1001 b 06 99 Index ...