10
11
Off-line UPS (Optional)
The Off-line UPS (Uninterrupted Power Source) option allows the Inverter to be used as a
backup power source in the event of external AC power failure.
To set up the Off-line UPS
1. Connect the external AC power source to the AC Input Connection.
2. Connect the batteries to the DC Input Connection.
3. Connect the load to the AC Output Connection.
4. Move the Power Switch to the ON position. The Bypass LED will glow green indicating
the load is drawing current from the AC Input Connection.
In the event that external AC power fails, the Inverter will sense the voltage drop, power
on, and begin supplying AC power to the load. It will continue to do so until either time the
external AC power is restored or the batteries become discharged.
The voltage thresholds for the Inverter to take over supplying AC Power or to stop supplying
AC power to the load are all factory-preset to typical values. However, you can use the
InverterWizard
software to adjust these values to fit your specific needs. For more information,
see the
InverterWizard
manual.
TIP:
Choose batteries with enough capacity to ensure that the Inverter can power
the load for the required amount of time in the event of AC power failure.
For example, a 2000W Inverter running from 24 VDC input will draw ~100 amps, so for 2 hours
of runtime the minimum required battery capacity is 280 amps hours of capacity at 24 volts.
InverterWizard Program
The Inverter is factory preset for the input voltage, output voltage, and output frequency
on the label. If these parameters are satisfactory, the Inverter can be put immediately into
service.
The low voltage shutdown parameters are set for the lowest battery voltage that the Inverter
will support. They are 12 Volts for a -12 model, 24 Volts for a -20 mode, and 48 Volts for a -40
model
If the Inverter is powered by alternate DC battery voltage such as 32/36 Volts for a -20 model
or 72 Volts (rail) for a -40 model, then the low voltage shutdown parameters will need to be
changed. You can do this using the free-to-download
InverterWizard
software from
www.analyticsystems.com
With
InverterWizard
, you can also:
• Set the Output Frequency (50.00 or 60.00 Hz)
• Adjust the Output Voltage (
±
10% range at 1 VAC intervals)
• Set the voltage thresholds for UPS (For units with the Off-line UPS Option)
Содержание IPSi2400 Series
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