Installation
10/10 MN05003003Z-EN
28
Connecting expansion devices/network modules
Local expansion
X Connect the devices to the expansion or to the network module
via the EASY-LINK-DS connection plug.
Remote expansion
Remote expansion units can be installed and run up to 30 m away
from the basic unit.
Figure 33: Connecting expansion devices with EC4-200
j
The following electrical separation is implemented
between the basic unit and an expansion unit (separation
always in local connection of expansion unit).
• Basic isolation 400 V AC (+10 %)
• Safe isolation 240 V AC (+10 %)
Units may be destroyed if the value 400 V AC +10 % is
exceeded, and may cause the malfunction of the entire
system or machine!
EASY-LINK-DS
EC4-200 EASY6…-RE/TE
EASY202-RE
EASY204-DP
EASY221-CO
EASY222-DN
EASY205-ASI
h
Basic unit and expansion unit can be provided with
different DC power supplies.
j
Warning!
The two-wire or multiple-wire cable between the devices
must comply with the insulation voltage requirement
which is stipulated for the installation environment.
Otherwise, a fault (ground fault, short-circuit) may lead to
the destruction of the units or injury to persons.
A cable such as NYM-0 with a rated operational voltage
of U
e
= 300/500 V AC is normally sufficient.
h
Terminals E+ and E– of the EASY200-EASY are protected
against short-circuits and polarity reversal. Functionality
is only ensured if E+ is connected with E+ and E- with E-.
Figure 34: Connecting remote expansion units to the EC4-200
EC4P-221/222-M…1 EASY6…-RE/-TE
EASY200-
EASY
EASY-LINK-DS
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