12.4 Operating and Error Display
On the front panel of the UPS five LEDs are arranged to display the device
states.
Start the measures specified in the following table if one of the succeeding
LEDs displays an error or a note.
LED
Designation
Meaning
Measure
24 V IN
LED lights green Normal operation
-
LED is off
DC 24 V missing
Check the cable of the voltage
supply which is connected to
X1S1.
UPS OK
LED lights green Normal operation
-
LED is off
Internal voltages missing
For further information, please
contact the Bosch Rexroth Serv-
ice, see
PC OK
VAU 01.1U: LED
flashes green
(5 s on, 1 s off)
VAU 01.1S, VAU
01.1Z: LED
lights green
Normal operation
-
LED is off
Connected PC is booting
Wait until the boot process of
the connected PC is finished.
●
VAU 01.1U:
Interface cable between UPS
(XUSB In) and PC (USB port) is
not plugged
●
VAU 01.1S/VAU 01.1Z:
Interface cable between UPS
(XCOM1) and PC (Com Port) is
not plugged
●
The cable is defective
Check the interface cable
●
Connected PC power supply unit
has no supply voltage or
●
Connected PC power supply has
not started yet
Check the PC cable connected to
X1S2
●
UPS software has not started
●
Check the connected PC.
●
Check that the UPS software
has been started
Bosch Rexroth AG
Device Description
VAU 01.1
34/53
DOK-SUPPL*-VAU*01.1X**-IT02-EN-P