Preface
Thank you for using the Mining Explosion-proof and Intrinsic Safety AC Inverter (hereinafter
referred to as mining inverter) produced by FGI Science Technology Co., Ltd.
FGI mining inverter adopts vector control without speed sensor. Within the rated output speed
range of the inverter, it can provide sufficient torque, so it is suitable for various loads
FGI mining inverter includes the following features: programmable control terminal, eight steps
multi-step speed free setting, two analog outputs, two analog inputs, built-in PID controller,
MODBUS communication function, multi motor driving automatic power balance.
The protection functions of FGI mining inverter include: hardware, software overcurrent
protection, motor overload protection, output short circuit protection, DC bus overvoltage and
under-voltage protection, three-phase input power failure (including overvoltage,
under-voltage and phase loss protection), input and output phase loss protection, over
temperature protection, etc.
FGI mining inverter is standard built in switching elements such as three-phase input fuse and
isolation switch. The user does not need an additional switch, and controls the power on and
power off of the mining inverter by operating the isolation switch.
FGI mining inverter does not contain input SPD (surge protection device), and users need to
install it by themselves.
FGI mining inverter does not include input EMC filter. If necessary, customers need to install it
by themselves. In order to reduce electromagnetic interference, the connecting cable between
mining inverter and motor needs to use mining multi-core cable with shielding. In addition to
3-phase wiring and ground wire, there shall be no other wiring in multi-core cable. The wiring
of the control terminal also needs to use shielded cable and stay away from the output cable
as far as possible.
The operations listed in this manual are applicable to the 1140V / 660V voltage level of FGI
mining inverter.
Before using this series of inverter, please read the operation manual carefully by the inverter
users and relevant technicians, so as to ensure the correct installation and operation of this
series of mining inverter and make the mining inverter give full play to its best performance.
As we are always committed to the continuous upgrading and improvement of products, the
information provided by the company is subject to change without notice.
If you have problems in use, please contact our regional agents or directly contact our
customer service center.
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