Bosch CL400 - Expansion Unit

Flexible Automation
Subracks
2-7
1070 072 143-101
2.4 Expansion unit
. The expansion unit is used only for the attachment of peripheral mod
ules.
The expansion unit consists of at least
D one subrack EG2 or EG2/K,
D one cable duct,
D one expansion module AG/ZS and
D one connection cable AG/ZS or AG/PS.
The 13 or 7 remaining slots in the expansion unit can be fitted with periph
eral modules.
Power supply
The internal power supply of the expansion units is supplied from the power
supply module of the basic unit; for this reason the current used must be
taken into account, see section 3.1 Selecting the power supply module.
PE terminal
All expansion units must be equipped pointtopoint with adequate con
nection to a PE conductor.
. Dummy slots in a subrack must be sealed with dummy covers, be
cause otherwise the air circulation will be impaired.
. Depending on the fitting and configuration of the control unit, the in
stallation of fan units must be assessed, see section 6.1 Fan mounting
and assembly of the subracks.
Expansion module AG/ZS
The expansion module AG/ZS is used to expand the CL400 and is plugged
into the expansion unit. It supplies the internal supply voltage to the expan
sion units and the peripheral bus.
The connection is established via both socket contacts on the front panel of
the module. The two socket contacts are connected in parallel so that the
connection can be made at the upper or lower socket contact as required.
The connection between two expansion units is always established via ex
pansion module AG/ZS.
. The expansion module AG/ZS must not be plugged into the basic unit
of the CL400.