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IndraControl VAU 02.1 Uninterruptible
Power Supply
7.4 Response upon voltage failure
The UPS response upon voltage failure is described in the following.
NOTICE
After the UPS has been issued the shutdown command, wait until the UPS buf-
fer time elapses before disconnecting the connecting cable to the PC or restart-
ing the PC.
Normal
Time between voltage
mode
failure and issuing
shutdown command
Default: 30 s
24 V In
24 V Out
24 V In
24 V Out
24 V In
24 V Out
Time of
voltage failure
0 s
①
The connection between PC and UPS may neither be disconnected nor established again
during this period! If the connection is restored, the PC restarts and there is an uncon-
trolled switch-off when the UPS buffer time elapses.
②
The period between the voltage failure and the shutdown can be set between 10 and 180
seconds in the dashboard; "Time to Shutdown after Power Outage"
Fig. 7-1: Pulse diagram of the UPS
8 Standards
Standard
EN 61000-6-4
EN 61000-6-2
PC failure due to faulty operation!
Time between shutdown command
and UPS switch-off: 120 s
PC shutdown
PC shutdown
2
10 to 180 s
completed
Description
Generic standards - Emission standard (industrial environments)
Generic standards – Noise immunity (industrial environments)
1
UPS switch-off 150 s
after voltage failure
+120 s
R911384727_Edition 03 Bosch Rexroth AG
11/31
Standards
UPS switch-off 150 s
after voltage failure
No UPS switch-off, as
voltage failure <30 s
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