Static Transfer Switch
STS207
User Manual
Page 16 (28)
ELTEK VALERE DEUTSCHLAND ©2009 UM_STS207_WEB_E_R1.4
4.3.1 LED Indications
Functions of front panel LED indicators
LED Colour Main function Auxiliary function
green Unit is ready for operation
Inverter
green
Voltage and frequency of source
Inverter within permissible limit
Flashing when inverter overload
is detected
Mains
green
Voltage and frequency of source
Mains within permissible limit
Flashing when “Load on mains” is
activated (see menu 2)
Load on Inv.
green
Load feeding by source Inverter
Load on Mains
green Load feeding by source Mains
Sync.
green
Inverters are synchronized to
mains phase and frequency
red
Collective Failure (the allocation
of the individual trouble codes is
programmable)
4.3.2 Adjustment keys
The adjustment takes place with four front keys:
Front keys
Function
during menu item selection: change to
previous item (parameter)
during adjustment mode: increase value
during menu item selection: change to next item (parameter)
during adjustment mode: decrease value
ENT
enter menu (long pressed)
enter submenu
save parameter and leave submenu
ESC
leave the menu without changing
enter error list