2.10.2
Basic Rules for System Configuration
The following considerations should be taken into account when configuring a system with
extension units or special function modules:
쎲
Current consumption from 5 V DC backplane bus
쎲
24 V DC current consumption
쎲
The total number of inputs and outputs point must be smaller than the number of max. I/Os.
The following figure shows the distribution of the power supply in case of an FX
3U
.
*
When connecting an
input
extension block on the downstream side of an extension power supply unit, this input
extension block is supplied from the base unit or from an input/output powered extension unit which is mounted
between base unit and extension power supply unit.
Calculation of current consumption
The power is supplied to each connected device from the built-in power supply of the base unit,
the input/output powered extension unit or – for FX
3U
and FX
3UC
only– the extension power sup-
ply unit.
There are three types of built-in power supplies
–
5V DC
–
24V DC (for internal use)
–
24V DC service power supply (only in AC powered base units).
The following table shows the capacities of the built-in power supplies:
When only input/output extension blocks are added, a quick reference matrix can be used.
When also special function modules are added, calculate the current consumption to ensure
that the total current to be consumed by the additional modules can be supplied by the built-in
power supply. For details of the power consumption please refer to the appendix (section A.4).
System Configuration
The Hardware
2 - 38
MITSUBISHI ELECTRIC
FX
3U
base unit
쐇
���
���
���
Compact
extension
unit
Extension
power
supply
���
Power supply from
base unit
Power supply from
base unit
Power supply from
compact extension
unit
Power supply from
extension power
supply unit*
쐃
: Special adapter
���
: Communication board or interface board
���
: Modular extension block or special function module
Model
5 V DC built-in power supply
24 V DC built-in power supply
(internal / service power supply
Base units
FX
1N
Suitable to power all connected
modules
400 mA
FX
2N
290 mA
250 mA (FX
2N
-16M
첸
, FX
2N
-32M
첸
)
460 mA (all other base units)
FX
3G
Sufficient for 2 special function mod-
ules or 32 additional I/O
—
FX
3U
500 mA
400 mA (FX
3U
-16M
첸
, FX
3U
-32M
첸
)
600 mA (all other base units)
FX
3UC
400 / 480 / 560/ 600 mA
—
Compact extension unit
FX
2N
690 mA
250 mA (FX
2N
-32E
첸
)
460 mA (FX
2N
-48E
첸
)
Содержание FX2N-32CAN
Страница 1: ...MITSUBISHI ELECTRIC FACTORY AUTOMATION Programmable Logic Controllers GX IEC Developer ...
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Страница 10: ...IV MITSUBISHI ELECTRIC ...
Страница 18: ...Modular PLC Training Hardware Course Overview and Requirements 1 2 MITSUBISHI ELECTRIC ...
Страница 172: ...Monitoring Instances of Function Blocks Advanced Monitoring Functions 7 12 MITSUBISHI ELECTRIC ...
Страница 176: ...Device Edit 8 4 MITSUBISHI ELECTRIC ...
Страница 190: ...Assigning DUT Variables to Function Blocks Data Unit Types DUT 10 10 MITSUBISHI ELECTRIC ...
Страница 198: ...Array Example Single Dimension Array Arrays 11 8 MITSUBISHI ELECTRIC ...
Страница 219: ...Sequential Function Chart SFC SFC Elements Training Manual GX IEC Developer 14 3 ...
Страница 220: ...14 3 SFC configuration examples SFC configuration examples Sequential Function Chart SFC 14 4 MITSUBISHI ELECTRIC ...
Страница 230: ...Structured Text Program Example IEC Structured Text 16 4 MITSUBISHI ELECTRIC ...
Страница 248: ...Configuring GX IEC Developer to access the PLC on Ethernet Ethernet Communications 18 10 MITSUBISHI ELECTRIC ...
Страница 278: ...PLC Components Glossary Appendix A 18 MITSUBISHI ELECTRIC ...
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