Bosch Rexroth IndraControl VAU 01.1Z, Руководство пользователя, Страница: 30 / 48

DSR / UPS -> PC AC power supply
unit OK
HIGH LEVEL
(+5 V)
The DSR signal indicates whether the AC POWER SUPPLY UNIT is
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
X1N1" is triggered.
AC power supply
unit is defective
or discharged
LOW LEVEL
(-5 V)
RTS / PC ->UPS PC OK HIGH LEVEL
(+5 V)
The RTS signal indicates to the UPS, if the PC has booted. It is also
indicated, if
●
the PC is supplied with voltage via the UPS,
● the COM interface is connected to the PC,
● if the PC and the UPS software were started
PC not OK LOW LEVEL
(-5 V)
DTR / PC -> UPS Stop of the AC
power supply unit
test
HIGH LEVEL
(+5 V)
The DTR signal starts the AC power supply unit test. For this, the RTS
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
supply unit test was started.
Start of the AC
power supply unit
test
LOW LEVEL
(-5 V)
Fig.6-12: Description of the COM interface signals
6.4 Operating Display and Error Display
To indicate device states four LEDs are arranged at the front panel of the UPS.
Start the measures specified in the following
fig. 6-13 "Description of the
LEDs" on page 28 if one of the succeeding LEDs displays an error or a note.
LED Display Designa‐
tion
Meaning Measure
1 24 V IN LED green Normal mode -
LED off 24 V DC missing Check the connection cable of the supply
voltage applied to the X1S2.
2 UPS OK LED green Normal mode -
LED off Internal voltages missing Check the two SMD fuses (see fig. 6-14
"Position of the two SMD fuses" on page
29 ). T2.5 A with UL certification
3 PC OK LED green Normal mode
LED off Serial interface cable (UPS – PC ) is not plugged
in or defective.
Check interface cable
Connected PC power supply unit has no supply
voltage or has not started
Check the PC cable connected to the
X1S2.
UPS software has not started or is not installed. Check the connected PC
4 Voltage
error
X1N1
LED red AC power supply unit is defective or not connec‐
ted.
Check the 115V/230 VAC voltage or the
FKS fuse on the front
LED off Normal mode. -
Fig.6-13: Description of the LEDs
28/45 Bosch Rexroth AG | Electric Drives
and Controls
Rexroth IndraControl VAU 01.1Z | Project Planning Manual
Interfaces, Display and Operating Components