User manual

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Installation
MN05013003E58
Remote expansion
Remote expansion units can be installed and run up to 30 m
away from the basic unit.
Warning!
The following electrical isolation is implemented between
the EZ7..-..-.C. basic unit and the expansion device
(isolation 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!
J
Basic unit and expansion unit can be provided with different
DC power supplies.
Warning!
The two-wire or multi-core cable between units must have
the necessary insulation voltage required for the installation
environment concerned. In the event of a fault (ground
leakage, short-circuit) serious damage or injury to persons
may otherwise occur.
A cable such as NYM-0 with a rated operational voltage of
U
e
= 300/500 V AC is normally sufficient.
EZ500_700.book Page 58 Tuesday, May 3, 2005 5:15 PM