Fonrich FR-DCMG-MMPS, Руководство пользователя

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Product description
FR-DCMG DC monitor products are mainly used in DC power transmission and distribution, such as
photovoltaic combiner boxes, DC cabinets, telecommunications equipment rooms and
communication base stations. It communicates with host computer through RS485 or power line
carrier(PLC). Its main function is to monitor the current of each branch in the DC system, the bus
voltage, the temperature of the cabinet, the status of the lightning arrester and the status of the DC
breaker. It can realize automatic alarm for abnormal conditions and real-time detection of the
presence of harmful arcs in the DC circuit. Once there is a harmful arc, it will immediately send an
alarm signal to directly drive the trip unit and cut off the faulty circuit, thereby effectively preventing
safety risks such as fire caused by arc.
The main function
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Monitoring function: Real-time monitoring of the generation current, voltage, temperature of
the combiner box, lightning arrester status, DC circuit breaker status, and DC arc fault status
of each photovoltaic string in the combiner box, and communicate with the host computer
through RS485 or PLC.
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Display content: For the detected voltage, current, temperature, switching state, power
generation and other data, the FR-DCMG-MMPS can display a histogram interface through
the LCD to read the current and other data more intuitively.
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Alarm function: It can be configured to open or close the alarm and shunt release functions
according to the actual needs of the site (by default, only the arc alarm and trip functions are
enabled). When an alarm occurs, an alarm message will pop up on the interface.
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Current calibration: identify zero drift and improve the accuracy of current identification.
(Default off)
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Trip mode switching: The default o +, o- voltage is 0v, and the voltage output is 24v when
tripped. It can also be set to the opposite application.
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Power line carrier communication module: through the power line carrier expansion module
DC-DCMG-PLCx, to achieve communication of up to 24 nodes
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Compatibility:Program compatible model FR-DCMG-MMPD products