
6LE007317A
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The synoptic on the HZI855 controller informs the user on the status of the sources:
The round green LED next to S1 or S2 indicates if the source is available or not:
- If the LED is on but not blinking then the source is considered as available.
- If the LED is blinking, the voltage is present but the source is not considered available.
- If the LED is off, then the busbar is dead.
The 2 rectangle green LED and the center orange LED indicates the position of the switch:
- If the LED is on, the switch is closed on that position (I or II).
- If the LED is blinking, the controller considers the switch is in that position, but there is no return from the switch (the input has to be
configured as a position).
- If the LED is off, the switch is not in that position.
The green LED in the center-up of the diagram indicates if the load is powered:
- If the LED is on, the load is supplied by either source 1 or source 2, which means that the source is available and the switch is in one
of these positions.
- If the LED is blinking, the load is supplied but a load shedding is taking place.
- If the LED is off, the load is not supplied (switch not closed on an available source).
The “0” amber LED under the load LED indicates the center-off position:
- If the LED is on, the switch is in center-off position (only if there is a 0 position)
- If the LED is off, the switch position is either on S1, S2 or unknown (should always be off for technologies without 0 position)
- If the LED is blinking, the controller considers the switch is in that position, but there is no return from the switch (the input has to be
configured as 0 position)