ABB AC 900F, Mounting And Installation Instructions Manual

Page: 26 / 156

Interfaces Section 3 Modules
26 M&I – AC 900F Controller
For more detailed information refer to the Mounting and Installation Instructions,
I/O Modules for AC 700F / AC 900F .
Power supply
An external 24 V DC voltage supply of sufficient power is required for operating the
CPU module, the modules on the C1/C2 slots and for the I/O bus. The DC-IN
connection is used for power supply. The corresponding supply lines must be
connected to the removable 5-pin terminal block.
Power supply_us.png
L+ and M are provided twice, which allows also I/O modules or external sensors to
be supplied using these terminals.
Number of conductors per terminal Conductor type Cross - section
1 -- solid 0.08 - 1.5 mm²
1 -- flexible 0.08 - 1.5 mm²
1 with wire end ferrule (without plas-
tic sleeve) flexible 0.25 - 1.5 mm²
1 with wire end ferrule (with plastic
sleeve) flexible 0.25 - 0.5 mm²
1 TWIN wire end ferrule flexible 0.5 mm²
2 identical cross-section solid 0.08 - 0.5 mm²
2 identical cross-section flexible 0.08 - 0.75 mm²
2 identical cross-section in wire end
ferrule, without plastic sleeve flexible 0.25 - 0.34 mm²