Western Co WRM30+ Manuel De L'utilisateur page 19

PV CHARGE CONTROLLER
WRM30+ is a PV charge controller for big off-grid systems. It is suitable for
12V/24V/48V systems with lead acid and lithium-ion batteries and it can
handle a photovoltaic power up to 1.8kW.
WRM30 has been properly designed for industrial applications such as the
power supplying of either TV/radio relays, road signs, or whole houses
completely stand-alone.
WRM30 implements a research circuit for the maximum power of panel
(MPPT): regardless of battery voltage and its state of charge, the charge
controller makes always the PV module work at its point of maximum power
maximizing the energy extracted from the PV module and charged into the
battery. Charging is compensated in temperature.
Special feature of this product is the presence of two separated charging
channels and, therefore, a double input for PV modules. This allows the
management of two independent strings, for example in the case they are
composed of modules with different features or exposed on two slopes, or,
with identical strings, channels can be paralleled thus optimizing efficiency.
The load output can be activated according to several programs that can be
selected by the user: load ON 24h/24h, load ON only during the day, load ON
only during night, load ON during night for a number of hours from 1 to 16,
and load ON at the end of the charge so to exploit all the exceeding energy.
WRM30+ detects the day/night status according to the PV module voltage;
so it is not necessary to connect additional sensors to the controller.
It is equipped with a RS-485 serial interface through which you can access all
of the available functionalities.
WRM30+ has new functionalities and features: voltage of the PV modules up
to 180V, derating curve, easy navigation of the menu and compatibility with
WESTERN WRD SYSTEM (advanced monitoring and display system for high
power MPPT systems.
WRM30+
User manual
WRM30+
• Max charge current: 30A
• Max Voc voltage on PV modules 180V.
• Double input of PV modules.
• Maximum load current: 15A.
• Derating curve
• Terminals for battery cables 35sqmm
• Terminals for PV modules cables
• Terminals for load cables 4sqmm
1
EN
MPPT charge
Max power of PV modules:
450W@12V / 900W@24V /
1800W@48V
12V / 24V / 48V auto detect
For sealed/GEL, flooded lead
acid batteries and lithium-ion
batteries
Charge voltage compensated in
temperature
Integrated blocking diode
Configurable parameters by two
buttons and LCD
20 load management programs
Compatible with WESTERN WRD
SYSTEM
Modbus on RS-485
communication port (provided by
Western CO. WBUS
communication protocol)
IP20
• Low battery protection
• Over temperature protection.
• Battery reverse polarity protection.
• Overload protection on output.
10sqmm
REV 1.1 19-01-2018