Sanyo SANUPS E11A102A User Manual download pdf (Page 40)

−

15.2 Protective Functions

(1) Overload Protection

If the UPS output is overloaded by exceeding the current capacity of the inverter, such as

when a computer system boots up, the output selector switch automatically switches the

source of AC power from the inverter to the bypass circuit, without interruption. After a

certain period of time has elapsed, the source of power to the load is switched back to the

inverter without interruption (auto-return), as shown in §15.1(1).

Note: When item

⑩

“Overload recovery operation” in §10.1 “Setup Menu Item List” is set

to “Bypass”, the UPS switches to inverter power supply without interruption when

the overload is resolved.

Power supply route on failure of utility power Indications by LEDs

(2) Inverter Fault Protection

If a fault occurs in the inverter, the output selector switch activates automatically and

switches from inverter power to bypass power without interruption. The red ALARM

indicator lights, and the alarm buzzer sounds. The power supply route is the same as for

an overload. Press

to stop the buzzer.

LED indications when an inverter fault occurs

Note: What to do if an inverter fault occurs

Output from the UPS will stop if a power outage occurs during bypass operation due

to an inverter fault. Contact your supplier or a Sanyo Denki representative as soon

as possible.

Utility

power

Output

Converter

Inverte

Charger

Batteries

Rectifier

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 46

No comments

Sanyo SANUPS E11A102A User Manual Page 40