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Add-On Modules
400 Series Installation and Configuration
Add-On Modules
Different expansion units are available, as follows below.
SDU 410 Safety Unit
The SDU 410 Safety Unit operates fully independent from
the DCU, but has a communication link.
Note! The SDU is mandatory in type approved
installations.
The SDU has a built-in web server and can be configured
independently, or it can be configured using the web-
server in the DCU.
The configuration is stored internally, as well as in the
DCU configuration file.
Capacity
A maximum of eight switch channels are available to
command a shutdown.
All eight channels are monitored for a broken wire or a
short circuit, to 0V or 24V, on any of the two terminals.
