SIEMENS RWF55.50A9 110-240VAC BURNER CONTROL (Pengganti RWF 40.000A97)

Burner control SIEMENS RWF55.50A9

The RWF55 is used primarily for the control of temperature or pressure in oil- or gasfired heating plants. Depending on the setting, it is employed as a compact 3-position controller or as a modulating controller with an analog output. An external switch is provided to convert it to a 2-position controller for controlling 2-stage burners. The builtin thermostat function switches the burner on and off. The controller’s operating mode can be changed from heating to cooling, or vice versa. The controllers feature two 4-digit 7-segment displays for the actual value (red) and the setpoint (green). The RWF55 has a 3-position output consisting of 2 relays to open or close a controlling element. There is also an analog output and a multifunctional relay (K6), which can be used to set 12 different switching functions. The controllers feature an RS-485 interface Modbus slave as standard. Additionally, the RWF55.6 features a Profibus DP interface. In modulating mode, the RWF55 operates as a PID controller. In 2-stage mode, the RWF55 provides control based on the set switching threshold. You have the option of specifying the setpoint of the RWF55 on the controller or externally via an interface. The user uses it for control the temperature or pressure of a heating boiler or cooling system. It is possible to adjust the minimum and maximum setpoint limits. 2 binary inputs are used to execute functions such as setpoint changeover, setpoint shifting or operating mode changeover. Standard feature is a self-setting function used to determine the PID control parameters.

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