Qoltec Monolith 53890 User manual
USER MANUAL
Pure Sine Wave Solar Inverter
MODEL: 53890, 53891, 53892
www.qoltec.com
Features:
1.1 Pure sine wave output, strong compatibility, which can be connected with refrigerators, electric fans, televisions, fluorescent
lamps etc, without damage for loads.
1.2 C.R.G.O Toroidal transformers technology , more reliable, Low static loss
1.3 Double CPU intelligent control, high performance
1.4 MPPT solar charging technology, more efficient
1.5 With wide frequency range, auto-tracking for main frequency and inverter output 50/60Hz
1.6 Intelligent selection between main mode and solar mode, more energy-saving
1.7 Full range of automatic protections & alarm: overload, short circuit, overvoltage, under voltage, high temperature etc.
1.8 Friendly display interface, clear working status
2. Product installation & precautions
2.1 Product installation & connection diagram
Main socket
Loading
Solar inverter
Battery
Solar panel
Connection diagram (500VA to 2.5KVA)
Connection diagram (3KVA to 5KVA)
Battery
Loading
Solar inverter
Main socket
Solar panel
Battery
Solar panel
Main socket
Loading
Before installation on the wall, please check below size carefully and choose the correct expansion bolt and screw.
Product installation & connection steps:
1) Please open the packing carton to verify that products good, and unplug the power cord to ensure the output terminal
without any connection;
2) Please connect the battery in right way, and check the voltage & polarity of positive/negative carefully;
3) Connect the solar panels properly, and check the voltage & polarity of positive & negative carefully;
4) Select the machine priority mode: for solar energy systems , select the PV priority, otherwise AC priority
5) Press the ON/OFF button to start, to ensure it can work normally and connect the mains.
6) Open the solar input switch for solar charging;
7) Connect the input terminals with the loads which are turn off, and then open them one by one.
2.2 Precautions
1) connect properly to the battery and solar panel, reversed or high voltage will cause serious damage.
2) be connected to ground securely
3) don’t load beyond the rated power. If connect the refrigerators, fans such inductive loads, the loading capacity should
not exceed the 30% of the rated power.
4) don’t install this products outdoors, avoid the electricity leakage caused by any water.
5) when the product work properly, the cabinet will have a certain degree of heat. It should be installed at a distance over
50 cm far away the human venue area. To ensure adequate ventilation around ,and away from flammable materials
6) If the product malfunctions, disconnect the mains input immediately , and then shut down. Disconnect the battery and
solar panel switch, and take note of the failure and fault phenomena, etc, contact your dealer promptly, and give the
products to the professional personnel.
3. Working principle
3.1 System circuit diagram
Inverter
AC
Load
Battery
Solar panel
Solar controller
AVR
Inverter/charger
Isolation
Transformer Filter
Input
3.2 Working mode:
1) Solar energy: Strong enough
Priority mode: No matter
AC power input: No matter
Solar panel will adjust to the largest state through solar power controller and give power to load through the inverter
(Mains as a standby).If solar energy stronger than output power, it will charge the battery at the same time.
If solar energy less than output power, the system will convert the energy of battery and PV systems and give power
supply to the user equipment.
2) Solar energy: No strong enough
Priority mode: AC priority
AC power input: Normal
AC input will provide power to equipments through regulator by relays and transformer. At this time, PV gives power to
batteries only through MPPT control system.
Load
Filter
Isolation
Transformer
AVR
Inverter
AC
Input
Solar controller
Solar panel
Inverter/charger
Inverter
Input
AC
Solar panel Solar controller
AVR
Isolation
Transformer Filter
Load
Battery
Inverter/charger
Battery
During the evening (or rainy days, with no sun), AC power will charge battery by charger inside the inverter.
3) Solar energy: No strong enough
Priority mode: AC priority
AC power input: Wrong
The system will convert the energy of battery and PV systems and give power supply to the user equipment.
During the evening (or rainy days, with no sun), the system will convert the energy of battery and give power supply to
the user equipment.
Inverter
AC
Input
AVR
Isolation
Transformer Filter
Load
Inverter/charger
Solar controller
Solar panel
Battery
Load
Filter
Isolation
Transformer
Inverter/charger
Battery
Solar controller
Input
AC
AVR
Inverter
Solar panel
Battery
Inverter/charger
AVR
Inverter
AC
Input
Solar controller
Solar panel
Isolation
Transformer Filter
Load
Battery
4) Solar energy: No strong enough
Priority mode: PV priority
AC power input: Normal
The system will convert the energy of battery and PV systems and give power supply to the user equipment.
If battery capacity less than 40%, AC input will provide power to equipments through regulator by relays and transformer. At this
time, PV gives power to batteries only through MPPT control system.
5) Solar energy: No strong enough
Priority mode: PV priority
AC power input: Wrong
The system will convert the energy of battery and PV systems and give power supply to the user equipment.
Inverter
Inverter
Inverter
Battery
Battery
AVR
AVR
AC
AC
AC
Input
Input
Input
Solar controller
Solar controller
Battery
Solar controller
Inverter/charger
Inverter/charger
Inverter/charger
Load
Load
Load
Filter
Filter
Filter
Solar panel
Solar panel
Solar panel
Isolation
Transformer
Isolation
Transformer
Isolation
Transformer
AVR
If battery capacity less than 30%, the inverter turn off and no power supply to de user equipment. At this time, solar
energy can charge the battery normally.
4. Product panel and display details:
Isolation
Transformer
Isolation
Transformer
Load
Load
AVR
AVR
Inverter/charger
Inverter/charger
Input
Input
AC
AC
Battery
Battery
Solar controller
Solar controller
Solar panel
Solar panel
Filter
Filter
Inverter
Inverter
Detail display status by press MENU
- PV
- City power
- Output
- Battery
Voltage indication. When lighting, here shows solar panel voltage; lighting
Here shows city power input voltage; lighting, here shows output voltage.
Current indication. When lighting, here shows solar panel current;
AC voltage indication
DC voltage indication
Frequency indication
Loading bar shows the loading situation; Battery bar shows the battery capacity, when in city power charge,
the bar will flashing.
PV charging indication
Battery mode
City power mode
Abnormal/Faulty indication
Overloading indication
Overheating indication
Left : Green LED: Solar panel connect state. Long light means normal. Light off or flash means connect unusual
Middle Yellow LED: Battery connect state : long light means normal, light off or flash means connect unusual
Right Red Led : means abnormal state, light means solar part abnormal
5. ON/OFF Instructions
5.1 About ON/OFF inverter;
1) On: When Mains is normal, inverter will start; when the Mains is abnormal or no input , press the button “ON” in 3 seconds,
it will start also.
2) Off: Press the shut-down (“OFF”) in 3 seconds, it will cut off the output.
SOLAR BATTERY FAULT
This manual suits for next models
2
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