LED
Designation
Meaning
Measure
Batt.
LED lights green Battery is charged. Guaranteed UPS
bridging time cannot be kept
Wait until the battery is loaded
(LED is off or is flashing)
LED is off or is
flashing
Battery is charged. The UPS is ready
to operate
-
Batt. Low
1)
LED lights red
(more than 500
ms)
Battery is either discharged, not con-
nected or fuse F1 (front side) is de-
fective.
(The LED is triggered by the UPS
software)
●
Keep the UPS switched on so
that the battery can be loa-
ded (max. five hours). If the
LED continues flashing after
this time, check the battery
and, if necessary, replace the
battery.
●
Check the fuse F1
LED lights red
(500 ms after
switching on)
Battery is defective or the deep dis-
charge threshold of 18 V is reached.
(The LED is independently triggered
by the UPS software)
Check if the battery is connected
to the circuit board.
Keep the UPS switched on so
that the battery can be loaded
(max. five hours). If the LED con-
tinues flashing after this time,
check the battery and, if neces-
sary, replace the battery.
LED is off
Normal operation
-
Voltage
Error
LED is lighting
red
AC power supply unit is defective or
not connected
Check the 115V/230 VAC volt-
age and the F1 fuse on the front
panel
LED is off
Normal operation
-
Tab. 12-1: LED description
12.5 Fuse F1
The FKS fuse (20 A, 32 V on VAU 01.1U/VAU 01.1S, 4 A, 32 V on VAU 01.1Z) is
located on the front panel. The fuse protects the output side of the battery of
the VAU 01.1U and VAU 01.1S, and the output side of the integrated power sup-
ply unit of the VAU 01.1Z. Without fuse F1 no UPS operation is possible.
Ensure that the fuse is set "before" using the UPS.
Only valid for VAU 01.1U and VAU 01.1S
Only valid for VAU 01.1Z
VAU 01.1
Bosch Rexroth AG
Device Description
DOK-SUPPL*-VAU*01.1X**-IT02-EN-P
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