Start-Up With Programmed Runtime (Autonomy Time); Use: Normal Operation; Normal Operation Conditions; Normal Operation Indications - GE NetPro Series User Manual

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3.2.3

Start-up with programmed runtime (autonomy time)

If a start-up runtime has been programmed (see section 3.4.3 Setup menu) and the batteries do not
contain sufficient energy to provide this runtime at the moment of start-up, the following screen will
appear:
If 'OK' (19, fig. 5) is pressed the message is ignored and the UPS will start up. If no key is pressed, the
UPS will wait until the batteries have been sufficiently charged to guarantee the programmed runtime, and
only then start up. Calculation of the runtime is based on the assumption that the UPS supplies a 100%
load.
This feature is not active during a 'battery start' (see above).
3.3

Use: Normal Operation

3.3.1

Normal operation conditions:

! the mains supply is present,
! the UPS is on,
! the load does not exceed the capacity of the UPS and
! the operating temperature is below alarm level
3.3.2

Normal operation indications:

! the green LED 'operation' is continuously on,
! LEDs 'weak mains', 'progr. shutdown' and 'alarm' are out,
! the beeper is silent and
! the liquid crystal display (LCD) shows a default screen (see 3.4.1)
3.3.3

Auto-off (no-load shutdown)

If this function is activated, the UPS will switch off during a mains failure when the load is less
than 5% of the maximum load. In this way unnecessary discharging of the batteries is avoided.
The unit will automatically turn on again when mains power is restored. The default setting of the
no-load shutdown function is: activated. Changing of the setting is described in 3.4.3.
3.3.4

Automatic bypass switch

The UPS is equipped with an automatic bypass switch. This switch automatically transfers the
load to the mains if the UPS is unable to deliver the demanded output power due to overload or
overtemperature. The UPS will switch back to normal operation when the overload has been
removed or the temperature has dropped below alarm level.
If a power failure occurs during bypass operation, the UPS will switch to battery operation and
eventually, when the batteries are depleted, output power is lost. If the UPS functions under
overload or overtemperature conditions it may not be able to protect the load. See also 3.4.2.3.
The bypass function can be disabled: see 3.4.3.
3.3.5

Switching off

1 Turn the 'on/off' switch (12, fig. 1) at the rear of the unit into position '0'. If the UPS is switched off
the output will always be absent for a few seconds to ensure that the connected equipment is
able to reboot.
2 If electric isolation is required, unplug the power cord from the wall outlet.
The unit can be switched off in a programmed way: see section 3.6.2.
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NetPro 2000-4000: user manual 4.0 (GB)