Installation and operating instructions, ATS022
1SDH000760R0002, L4106
28
8.2.2 LEDs
Figure 8.3 LEDs on ATS022
Alarm
A red Alarm LED signals an active alarm with continuous red signal (Logic disabled, CBs commands
failure, CBs trips, CBs withdrawn, Gen. alarm input DI8, DI3 activated).
Auto
A green Auto LED signals the automatic or the manual mode. When the automatic transfer switch
ATS022 is in automatic mode, the Auto LED is ON. When the device is in manual mode,the Auto LED is
OFF. In test sequence the Auto LED is blinking.
Power
A green Power LED signals the power status. When power is ON, the Power LED is ON. The automatic
transfer switch ATS022 will remain in standby state at least one minute after power failure. A blinking
Power LED indicates standby mode.
Tx/Rx
A green Tx/Rx LED signals the state of communication bus. When the LED is ON, the automatic transfer
switch ATS022 is sending data to the bus. When the led is OFF, data is not transferred.
8. Using automatic transfer switch ATS022
KA00494
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