Page 1
Fastron - Oztherm Power Controller F330 Series Calibration Procedure In this article we discuss the calibration procedure for F330 Series Single Phase Thyristor (SCR) Controllers. PCB F311AO(Firing Card) F311A1 (Option Card) Author – D. Rehe Feb 2020...
Please refer to the F330 installation and commissioning manual for detailed wiring connection instructions. Wiring diagrams for various applications; Standard Thyristor Wiring Diagram Control Card Wiring Diagram F311A1 New CCE option PCB1019-XX Wiring Diagram Bridge Output Thyristor Wiring Diagram ...
(MV) - Meter Output of Average Power (1mA for moving Coil Ammeter) (PH) - Phase Loss Output (PLF) - Partial Load Failure (PW) - Power Limit - Thermal Overload Protection For detailed descriptions please refer the F330 installation and commissioning manual.
Page 4
1.B Minimum Control Input Connect a 4-20mA signal to terminals 0V (0 volt reference) and I (4-20mA signal input). Input the minimum Control Signal. I.e 0V, 4mA, or 10K POT to 0 position. depending on the input required. Default is 4mA, for 4-20mA input control. Clamp the active output wire using the current clamp.
Page 5
1. Set the LIM potentiometer(POT) fully clockwise along with the Trip POT. 2. Set the FBG POT to approximately half way. 3. Connect a current clamp meter to the load. 4. With the control input set to maximum, gradually turn the LIM Potentiometer clockwise until the required current limit value is reached.
Page 6
On current trip and the controller is disabled and the trip relay energises and latches. Current Trip can be rest by opening the ENABLE link or by turning off the mains supply For F330 controllers fitted with CC,CCE option 7.A Bias(Zero) Adjustment 1.
Page 7
seconds. Special versions are available which allow faster turn on for special applications such as spot welding. Check here for list of recorded SP versions made over the last 30+ years. See here for a list of available SP versions. To check the response time, input a step change to the control input and measure the time taken to reach the desired output.