Mitsubishi Electric FX Series - Page 58

DC powered base units
The DC power type base units have restrictions in expandable I/O points since they lack a
built-in service power supply.
The following matrixes show the expandable units up to the 쑗 mark, where the desired inputs
(horizontal axis) and outputs (vertical axis) intersect. System are expandable up to the 쎲 mark
when the supply voltage is 16.8 V to 19.2 V.
For FX
3U-16MR/DS, FX3U-16MT/DS, FX3U-16MT/DSS, FX3U-32MR/DS, FX3U-32MT/DS or
FX
3U-32MT/DSS:
쎲
Example
When adding 16 inputs to a DC powered base unit with 16 or 32 I/O, a maximum of 32 out-
puts are expandable. When adding 16 inputs under the supply voltage 16.8 V to 19.2 V, a
maximum of 16 outputs are expandable.
For FX
3U-48MR/DS, FX3U-48MT/DS, FX3U-48MT/DSS, FX3U-64MR/DS, FX3U-64MT/DS,
FX
3U-64MT/DSS, FX3U-80MR/DS, FX3U-80MT/DS or FX3U-80MT/DSS:
쎲
Example
When adding 32 inputs to a DC powered base unit with 48, 64, or 80 I/Os, a maximum of 40
outputs are expandable. But when adding 32 inputs under the supply voltage 16.8 V to
19.2 V, a maximum of 24 outputs are expandable.
System Configuration The Hardware
2-40 MITSUBISHI ELECTRIC
0 8 16 24 32
24
16
8
-0
40
32
40 48 56 64
Number of additional inputs
Number of additional
outputs
see example
Not allowed to add
쎲
쎲
쎲
쎲
쎲
쎲
쎲쑗
쑗
쑗
쑗
쑗
쎲
쑗쑗쑗
쎲쎲 쎲쑗쑗
쎲쎲쎲쎲쑗쑗쑗
쎲
16
8
-0
32
24
40
48
0 8 16 24 32 40 48 56 64
72 80 88 96
56
64
Number of additional inputs
Number of additional
outputs
see example
쎲
쎲
쎲
쎲쎲
쎲
쎲쑗
쑗
쑗쑗
쑗
쎲쎲쑗쑗
쎲
쎲쎲쑗쑗
쎲쎲쎲쎲쎲쎲쑗쑗
쑗
쎲
쎲
쑗
쑗
쑗
쎲
쎲
쑗
쎲쎲 쎲쎲쎲쎲쑗쑗쑗
쑗
쑗
쎲쎲 쎲쎲쎲쎲쎲쎲쑗쑗쑗
Not allowed to add