40A Spot Welding Machine Control Board
The main features of the controller:
1: STM8 industrial microcontroller to do the main control core.
2: strong and weak through the optocoupler isolation, the operation more secure.
3: power cord and foot switch line with screw-free quick connect terminal, more convenient and reliable.
4: input time, current using high-precision single-bit potentiometer, to ensure reliable and convenient input
5: Onboard power, status, foot, trigger indicator, working status is clearly visible.
6: design a reliable zero-crossing detection circuit to ensure that the SCR phase shift accurate.
7: The controller is compatible with 100A thyristor.
8: a digital control interface, you can display the current set time and current.
9: time input 1-50, unit cycle (1 cycle is 20ms), current input (30-99%)
Time and current digital display, time range 1-50 cycles, one cycle 20 milliseconds, current range 30-99%.
Screw-free quick-connect terminal, grab the upper protrusion by hand, insert the thread into the hand, release the hand, the line can be pressed tightly, super convenient
Strong and weak electricity is isolated by optocoupler for safer operation.
Compatible with 40A thyristor
Using industrial single-chip microcomputer for reliable zero-crossing detection design, stable and reliable performance
Time current adjustment knob
On-board indicator light, the working status is clear at a glance.
AramDescription of the fault：
Time or current is not adjustable, the number does not change