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Bosch Rexroth AG | Electric Drives
Interfaces, Display and Operating Components
DSR / UPS -> PC AC power supply
unit OK
AC power supply
unit is defective
or discharged
RTS / PC ->UPS PC OK
PC not OK
DTR / PC -> UPS Stop of the AC
power supply unit
test
Start of the AC
power supply unit
test
6.4
Operating Display and Error Display
LED
Display
Designa‐
tion
1
24 V IN
LED green Normal mode
LED off
2
UPS OK LED green Normal mode
LED off
3
PC OK
LED green Normal mode
LED off
4
Voltage
LED red
error
X1N1
LED off
and Controls
HIGH LEVEL
The DSR signal indicates whether the AC POWER SUPPLY UNIT is
(+5 V)
ready. If the input voltage is not connected to the AC power supply unit
or if the AC power supply unit is defective, the red LED "Voltage Error
LOW LEVEL
X1N1" is triggered.
(-5 V)
HIGH LEVEL
The RTS signal indicates to the UPS, if the PC has booted. It is also
(+5 V)
indicated, if
●
the PC is supplied with voltage via the UPS,
LOW LEVEL
(-5 V)
●
the COM interface is connected to the PC,
●
if the PC and the UPS software were started
HIGH LEVEL
The DTR signal starts the AC power supply unit test. For this, the RTS
(+5 V)
signal must additionally have HIGH LEVEL. Independent of the signal
level of the DTR signal, a timer within the UPS switches off the internal
test load of 500 mA after max. 10 seconds if beforehand the AC power
LOW LEVEL
supply unit test was started.
(-5 V)
Fig.6-12:
Description of the COM interface signals
To indicate device states four LEDs are arranged at the front panel of the UPS.
Start the measures specified in the following
LEDs" on page 28
if one of the succeeding LEDs displays an error or a note.
Meaning
24 V DC missing
Internal voltages missing
Serial interface cable (UPS – PC ) is not plugged
in or defective.
Connected PC power supply unit has no supply
voltage or has not started
UPS software has not started or is not installed. Check the connected PC
AC power supply unit is defective or not connec‐
ted.
Normal mode.
Fig.6-13:
Description of the LEDs
Rexroth IndraControl VAU 01.1Z | Project Planning Manual
Measure
-
Check the connection cable of the supply
voltage applied to the X1S2.
-
Check the two SMD fuses (see
"Position of the two SMD fuses" on page
29). T2.5 A with UL certification
Check interface cable
Check the PC cable connected to the
X1S2.
Check the 115V/230 VAC voltage or the
FKS fuse on the front
-
fig. 6-13 "Description of the
fig. 6-14
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