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18 Operating Status
18.1
UPS Mode (OFF line UPS)
In this mode, the output of inverter has grid/mains priority. In case of grid/mains failure, the AC-Output switches to
inverter power. Switch over time is less than 6ms.
If grid/mains power is back within tolerance the load is switched back to grid/mains power.
ONLINE LED
BYPASS LED
UPS MODE LED
INV MODE LED
BACKUP LED
INV FAIL LED
Load Connect to
Alarm Contact
18.2
Inverter Mode (Online UPS)
This mode is usually in use, when grid is very unstable or if a very high quality AC-source is required for sensitive
equipment. To operate the system in this mode it requires to charge the batteries all the time in order to have
enough power available.
In this mode, the load is connected to inverter. In case of inverter failure (low battery, overload, etc.), the AC-
Output switches to grid/mains power. Switch over time is less than 6ms.
If inverter is operating again the load is switched back to inverter power.
ONLINE LED
BYPASS LED
UPS MODE LED
INV MODE LED
BACKUP LED
INV FAIL LED
Load Connect to
Alarm Contact
Manual UPSW.doc
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ACDC-DCDC
UPS Mode
Inverter OK
Inverter OK
Grid OK
Grid failure
1
0
1
0
0
0
Grid
Com - Nc
INV Mode
Inverter OK
Inverter OK
Grid OK
Grid failure
1
0
0
1
1
0
Inverter
Com - Nc
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Y O U R C O N N E C T I O N TO S A F E T Y
SYSTEME
Inverter failure
Grid OK
0
1
0
1
0
1
0
0
1
0
0
1
Inverter
Grid
Com - On
Com - Nc
Inverter failure
Grid OK
0
1
0
1
0
0
1
1
1
1
0
1
Inverter
Grid
Com - On
Com - Nc
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CONTACT
YOUR CONNECTION TO SAFETY
Version 2.11.14
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