ABB IRC5 Product Manual page 121

Required equipment
Equipment
I/O units, Gateways or encoder
interface units
Application manual - DeviceNet
Circuit Diagram
Fitting
The procedure below details how to fit the units.
24 V power supply
I/O units are supplied with 24 V power from the connector XT31 (see previous illustration).
Parallel connection
The 24V coming from DSQC 662, terminal XT31.1, can not be increased by adding power
from any other 24 V power supply (not even DSQC 609). There is no load levelling function
that ensures current distribution. The unit will not be destroyed but the lifetime may be
affected.
The parallel connection of two DSQC 609 is permitted (factory setting) but not more than
two.
3HAC021313-001 Revision: P
2.9.5. Installation of I/O, Gateways and encoder interface units, IRC5
Action
1.
DANGER!
Before commencing any work inside the
cabinet, please observe the safety
information in section DANGER - Make
sure that the main power has been
switched off! on page 30.
2. Fit the I/O unit by snapping it onto the
mounting rail.
3. Connect the DC supply to the board.
4. Connect wires to the inputs and output
connectors as required.
2 Installation and Commissioning, IRC5
Art. no.
3HAC020676-001
Note/Illustration
Described in the Application manual for
the respective busses.
Continued
Note
Specified in Definition of
I/O units, IRC5 on page
104.
See Circuit Diagram on
page 319
119