Bosch Rexroth IPC, Connectivity Manual

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Security Functions
3–2
1070 073 822-104 (02.06) GB
3.2 Uninterruptible power supply (UPS)
In the event of a power failure exceeding 800 ms in duration, or of an internal
housing temperature in excess of 65
°
C (refer to Section 3.1, above), the
UPS logic integrated in the power supply is activated, effecting a safe operat-
ing system shutdown procedure backed up by the internal rechargeable bat-
tery (”battery pack”).
Power interruptions of shorter durations are bridged by the battery pack. For
an IPC300 running with the Windows NT operating system, power interrup-
tions of up to 5 seconds in length may be permitted before the USP logic cir-
cuit activates.
Please note:
D
To allow the rechargeable battery pack to attain its full charge capacity,
the IPC must remain powered up for a minimum of 5 hours subsequent to
initial start-up. Sufficient USP protection cannot be ensured during this
charging period.
D
IPC only:
Frequent On/Off cycling of power tends to cause rapid discharge of the
battery pack. You should never cycle the power more often than 4 times in
succession. The battery pack must again be fully recharged thereafter.
D
The UPS locgic function requires hard disk capacity for intermediate
datza storage. Ensure that the hard disk never fills up completely.
D
Check and verify whether or not the preset Delay Time of 30 seconds
selected in the UPS Dialog window will allow the safe shutdown of all ap-
plication programs, or whether the interval must be increased.
DANGER
If there are no batteries in the unit, or if the batteries are defective or
discharged, the IPC will RESET without warning after a voltage dip
in excess of 20 ms! Possible consequences are uncontrolled ma-
chine movements or loss of data.
Each time the PC is booted up, observe UPS program messages indi-
cating that the battery pack may be discharged. This test is run dur-
ing each PC boot phase.
Voltage drops below 800 ms duration
Voltage drops below 800 ms duration are bridged by the battery pack, and
do not trigger the UPS logic circuit.
Operating voltage
not loaded
loaded
(standard
operation)
Operating voltage
restored within 800 ms
t0 t1 < 800 ms
IPC is not shut down,
as operating voltage interruption < 800 ms
t
t
V
Operating
system