Our company stopped production of this product and its accessories in 2018, and its support was terminated on December 31, 2023. After June 30, 2025, we will no longer provide any service for this product and its accessories. Similarly, support and advice for existing applications will no longer be available. Thank you for your understanding.

The aim of VONSCH developers was to produce highly reliable, true sine wave inverter with high efficiency and long durability.

FOTO CONTROL 1f 230/48 DC is an inverter for small systems designed to cover own household consumption.

FOTO CONTROL 1f 230/48 DC is designed to convert the DC voltage from the energy accumulator to the single-phase sine wave voltage in the own distribution grid.

FOTO CONTROL 1f 230/48 DC is designed as an HF transformer inverter with power rating of 2000 VA.

Inverter is designed to produce single-phase voltage with an amplitude of 230 V AC and frequency of 50 Hz in off-grid operation.

FOTO CONTROL 1f 230/48 DC is able to work in a wide range of input voltage - voltage of battery, while ensuring the required quality of output voltage.

The advantages of FOTO CONTROL 1f 230/48 DC are low noise, high efficiency, the possibility of extending to three-phase system (operation of multiple inverters) and the possibility of integrating new perspective features. Software required for seamless connectivity to computer is freely available for download in the "support" section at www.vonsch.sk.

The main advantages of using FOTO CONTROL FOTO CONTROL 1f 230/48 DC:

high efficiency of 95 % is achieved by using the modern SiC FET switching elements and by minimization the self-consumption
switch off by fault in less than 10 ms
inbuilt AC cut-off switch for disconnection of the device
indication of operation parameters
true sine wave voltage output
meets the quality requirements of generated voltage and current, meets all required safety requirements
design with focus on high reliability and efficiency
inbuilt AC output fusing
possibility of operation in the distribution grid – optional
possibility of extending the standard warranty

Communication possibilities:

communication interface RS485, communication protocol MODBUS RTU, for connecting the control system
user friendly graphical display
communication module RM-WEB for on-line visualization

TECHNICAL DATA - FOTO CONTROL 1f 230/48 DC

Rated permanent power	P_N = 2000 VA at ambient temperature T_A = 25 °C
Output power derating behaviour *	Power P_N is reduced with increasing ambient temperature
Output voltage	1 x 230V AC ±10%
Output voltage waveform	sine wave
Total harmonic distortion of the output current (THDi)	Max. 3 % at rated AC current
Output frequency	50 Hz ± 2%
Rated battery voltage V_BAT	48 V DC
Operating DC voltage range	42 - 64 V DC
Rated input DC current	44.8 A
Rated output current AC	8.7 A
RFI filter	Inbuilt input DC RFI filter and output AC RFI filter
Control system	DSP Texas Instruments
Communication	Modbus RTU – RS485
Output power relay	YES
Time of switch off at fault	≤ 10 ms
Inverter dimensions w x h x d, weight	254 x 500 x 145 mm, 9.6 kg
Display	graphical, monochromatic
Peak / Euro efficiency	95% / 94.4%
Protections	Current overloading, Protections undervoltage, overvoltage , short circuit on the AC side , overheating of the inverter
Cooling	Natural air cooling, forced by inbuilt fan when necessary
Absolute altitude of the permitted usage	≤ 1000 m above the sea, 1% reduction of power for every 100 m above 1000 m. The installation site altitude in operation is from 0 to 2500 m.
Relative air humidity	≤ 95 % without corrosive and explosive gases, without water vapor and condensates
Ambient working temperature T_A	+ 2 °C to + 55 °C * (+25 °C –> 2000 VA, +40 °C –> 1500 VA , +55 °C –> 700 VA)
Cover	IP23 (OPTION IP43)
Storage ambient temperature	- 20 °C ~ + 70 °C
Standards compliance	Safety: EN 50178 EMC emissions: EN 61000-6-3 EMC immunity: EN 61000-6-1 Harmonic distortion: EN 61000–3–11, EN 61000–3–12
Instructions EEC	2004/108/EEC, 2006/ 95/EEC

Accessories

RM GRID MONITOR

RM GRID MONITOR is a device for FOTO CONTROL 1f inverters used for voltage and current measuring at the point of coupling to the electrical grid.

Individual device mountable on DIN rail
External power supply 24V DC

RM GRID MONITOR features

Monitoring the energy flow
Measurement of phase voltage and current
Switching of two external appliances
Extending the inverter features to allow limitation of the grid injection

The RM GRID MONITOR module is physically installed in the household switchboard. When connecting the inverter with the RM GRID MONITOR extension module, power and current at the inlet to the building are measured. Depending on this, it can be very easy and effective to regulate the power of the hybrid inverter. The inverter is also connected to the power supply (48V battery, wind turbine, etc.). According to the current state of energy flow, inverter is set to maximize solar energy share and it can be set to ensure zero grid injection (depends on local legislative).

RM-SYNC

RM-SYNC module can be connected to FOTO CONTROL 1f inverters.

Installation

Individual device mountable on DIN rail
Power supply 24V DC, can be powered from the inverter connector

Features

Generating control (synchronization) pulses for the inverters to generate three-phase grid
Inbuilt display
Measures the mains voltage
RS485 communication

RM-WEBi

The module RM-WEBi can be connected to FOTO CONTROL 1f inverters and FOTO CHARGER solar chargers to provide visualization of data from the devices through a web page on the local network. Website is compatible with most commonly used browsers. This page is also compatible with mobile devices like smartphones and tablets.

To access the Internet, it is necessary to ask for the public IP address at your Internet service provider or administrator and configure redirection in the local router.

Features

Individual device mountable on DIN rail
24V DC power supply
1x Ethernet RJ45
1x Modbus RTU RS485
Maximum number of connected devices: 10
Možnosť archivácie dát na SD kartu

Functions

Simple WEB page (HTML5 a JavaScript)
E-mail notification
Simple block diagram of installed photovoltaic system
View the basic parameters of the inverter and charger
Archiving - Backup of collected data (.csv file)
Monitor - Parameters monitoring according to the selected ID
Admin access - setting the basic parameters of the system
Battery Management (for hybrid photovoltaic system, or off-grid system) - setting the parameters of the battery, battery charging modes

Datasheet

Datasheet in PDF for download.

FOTO CONTROL 1f 230/48 DC