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3.6 Power LED
Power LED indicates the presence of healthy auxiliary supply to the 400 Series relay.
Internal Error LED
3.7 Internal Error LED
the relay, LED goes active in red
colour if any internal errors are detected
3.8 Ethernet Port
The ethernet port on the front panel is intended to provide PC connectivity via the dedicated
PC program.
3.9 IP52 Front Cover
Internal unit is isolated from the environmental effects by the cover. The cover provides IP52
protection with its special sealing. The cover is mounted on the case via two integrated nuts.
There is an external button on the transparent window of the cover that provides access to the
reset button without having to remove the cover.
3.10 3.5” TFT Display
The backlit 320 px x
enhanced control of the menus.
3.11 Multifunctional Buttons
Similar to cell phone menu control architecture, multifunctional buttons provide easy
command and navigation control through the menus.
3.12 Internal Unit Lock
As a subsystem of the patented DDS (DEMA Draw out System) technology, internal unit lock
provides locking and drawing out of the internal unit with ease. Locking ensures safe
electrical contacts.
3.13 Reset Button
Reset button connects to menus of Programmable LEDs and Alarms; allows them to be read
and deleted. The locking feature is also used to unlock the used relays.
3.14 IP52 Reset Button
Provides access to the LED and Alarm menus. Reset button is used for viewing and resetting
these menus, as well as resetting latched relays, if applicable.
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