modifications reserved
OPM_VHE_XXX_0K7_3K0_XGB_V010
13
User manual VH Series 700-3000 UPS 1.0 (GB)
4.2 Start-up
4.2.1 Start-up, mains available
1
Via front panel:
press keypad 'I' (1, fig. 4.1) briefly; LED ‘operation’ (already slowly blinking) will at first blink faster and
after a few seconds it will illuminate continuously, indicating that the unit has started up.
Via UPS monitoring software:
startup after delay, see 4.4.11 for more information.
2
The equipment connected to the UPS can now be switched on.
4.2.2 Start-up, mains not available
If the mains input is absent (power cord not connected, or mains failure):
1
Press keypad 'I' until the buzzer sounds.
The LEDs ‘operation’ and ‘on battery’ will illuminate. The UPS operates on battery: it discharges the batteries.
See 4.4.4 for further details about this operating mode.
4.3 Use:
normal
operation
4.3.1 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
4.3.2 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
.
The setting can be changed using the UPS monitoring software. For more information please refer to the
manual that came with the software.
If the no-load shutdown function is activated and the load is smaller than the 5% threshold, the “25%” load
LED will blink to warn you that the unit will switch off during a mains failure.
4.3.3 Switching
off
During normal operation, via operating panel:
1
Press keypad ‘0’ (2, fig. 4.1) for 1 second. 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.
During normal operation, using UPS monitoring software:
1
Shutdown after delay, see 4.4.10.
During bypass operation:
see section 4.4.3.
During battery operation:
see section 4.4.4.
If electric isolation is required, unplug the power cord from the wall outlet.