34001813EN/AE - Page 35
2. Installation

Characteristics of the contacts on the relay communications card.

Communications card connection example

If a SELV (safety extra low voltage) source is used, it must always be possible to isolate the communications card from the
upstream source to ensure the safety of personnel working on the installation.

Adding communication cards

Characteristics of the output contacts:
Permissible voltage: 250V AC, 30V DC.
Permissible current: 2 A.
Cable : 4 x 0.93 mm2, Ø 6.6 ± 0.3 mm.
Characteristics of the input contacts:
Switched voltage: 5 V DC
Consumption: 10 mA.
Cable: 4 x 0.34 mm2, Ø 5 ± 0.5 mm.
UPS OFF
UPS ON
654321BA
Low battery warning
Load on battery power
Load on automatic bypass
Load on UPS
Battery fault
General alarm

carte de

communication

source

Disconnecting device that can be locked
AC communication
card
2
4
1
3