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REGULUS - PG 500 Compact - www.regulus.eu
2.4 Commissioning
1. Make sure the power grid voltage corresponds to the voltage the UPS is designed for.
2. Plug the power supply cord into a wall socket. WARNING - from the moment on the batteries are being
charged.
3. Connect your pump or another load by plugging its cable into the socket of PG 500 Compact. It is
necessary to stick to a TN-S system (three-wire system, i.e. live wire is black, neutral wire is pale blue and
protective earth wire is yellow-green). No terminal of the unit’s outlet socket shall get connected to any
lead of mains or any other electric wiring. The unit is designed for a closed circuit. If the unit’s outlet got
connected with the mains, there would be a danger of destroying the connected appliances, the unit itself,
and even causing harm to health and property. The only lead that may be connected outside TN-S network
is the protective yellow-green lead.
4. Press ON/OFF push button to turn the UPS on. A signal will sound and all the LEDs will flash once. The
green LED will stay lit, indicating that the unit is running (standard mode, ready for backup).
5. Now you can turn on a pump or another load and test power grid operation without the inverter. The
inverter will turn on automatically at a power supply failure.
Auto test on start
After the unit is switched on, all LED indicators will blink twice. The unit is then ready for operation.
Silent mode
During battery operation, short pressing the ON/OFF button will turn on/off the buzzer alarms.
The Weak battery alarm cannot be switched off.
Auto start
If batteries went discharged and the unit switched off, it will turn on as soon as the power supply is
restored.
Overload
The unit will recognize overload and disconnect the outlet after a while in order to avoid its own
destruction.
Auto switch off
Under low battery voltage, the unit will disconnect the load and switch itself off in order to protect the
battery.
Turning off
By pressing and holding the ON/OFF button for 3 sec. the unit will be switched off.
2.5 Turning on PG Compact with no grid power
The UPS can be turned on without grid power, just from the battery.
Never disconnect 230 V power supply when the UPS is in operation, the earth protection of both PG 500
Compact and the connected load would get interrupted.
Verify that the total earth leakage current does not exceed 2.7 mA when all loads are connected (following
the EN 62040-1 standard)..
2.6 Battery replacement
The unit is equipped with two integrated 12V batteries. They shall be replaced only with batteries of the
same type. Replacement may be performed only by a qualified person. Before starting the replacement,
take off your wrist watch, rings or other metal items. Use tools with insulated handles. Do not throw the
batteries into a fire, do not open/damage them. The acid inside is toxic, dangerous to skin and eyes.
Batteries shall be disposed of as dangerous waste.
