Shows the desired temperature or pressure.
I can provide the exact step-by-step programming sequence for your system. Share public link
From the Basic Display (showing actual value), press the ▲ or ▼ button. The setpoint will flash, then you can adjust it with the ▲/▼ buttons and confirm by pressing PGM or waiting.
Setting FAC = 1 and confirming will erase every custom parameter and restore Siemens factory settings. Use only as a last resort.
Check sensor wiring, test sensor resistance, or replace defective sensor. E001 Hardware Failure Internal electronic component corruption. siemens rwf40 manual
The RWF40 provides precise PID control with various output and input options tailored for industrial boiler applications:
Correct installation is critical for safety and performance. Always de-energize the system before installation.
Unlike a standard PID controller that outputs a continuous signal (e.g., 6.5 V), the three-position output uses two relays:
Relay outputs for controlling the actuator motor (Open / Stop / Close commands). 3. Configuration and Parameterization Shows the desired temperature or pressure
To ensure long-term reliability and precise control from your Siemens RWF40 loop controller, implement these operational habits:
Output increases when the process value rises above the setpoint.
The Siemens RWF40 features a front-facing LED display with navigation buttons that allow users to access three distinct software levels: the , the Parameter Level , and the Configuration Level . How to Access Hidden Levels
Search for documentation number 7865 (e.g., CC1B7865en for English). The setpoint will flash, then you can adjust
3. Proportional Band, Reset Time, and Derivative Time ( Pb.1 , rt , dt ) These control the PID algorithm:
The controller will force the burner through a specific cycle to measure thermal inertia.
Shows the current Actual Value (PV - Process Variable).
Controls oil or gas burners by adjusting air and fuel dampers.