Welding control TE550

The TE550 is a microprocessor-based welding control unit for resistance welders. The task of the welding control unit is to manage the welder components, in particular the controlled diodes that carry out the welding current adjustment. The TE550 is a particularly versatile welding control unit as it may be adjusted to different types of welders; it may be installed not only on spot and projection welders but on seam welders too. It may work with power adjustment: both in constant current and in constant energy (optional). The number of inputs and outputs may be increased so to better adjust the welding control unit to automatic machines. It is possible to store up to 250 different welding programs, 31 of which are recalled directly from an external device. Each program comprises several programmable parameters that describe the work cycle. In addition to the plain 4-stage welding cycle, the control unit allows the running of welding processes with pre-welding current, post-welding current, slope and pulses. The TE550 replaces the TE500, which will be phased out.

Technical description TE550

  • Simplified programming via 6 keys and a backlit alphanumeric LCD.
  • Synchronous thyristor drive with phase-shift control for welding current adjustment.
  • Storage of 250 welding programs, 31 recallable from an external drive.
  • Up to 25 programmable parameters for each program.
  • Slope, pulses, pre-weld, post-weld functions and adjustment of the welding times in half-cycles.
  • Display of the RMS welding current measurement in kA and relative angle of conduction.
  • 3 operating modes: standard, constant current and constant energy.
  • Welding current or angle of conduction limits.
  • Double stroke function.
  • Stepper function to compensate the electrodes wear with programmable curve.
  • Single and repeat operating mode. WELD/NO WELD function.
  • Adjustment of first insertion delay.
  • SControl of 5 solenoid valves 24 VDC max. 5 W with self-protected output.
  • Self-adjustment to the mains frequency 50/60 Hz.
  • Serial data transmission by means of optional insulated RS232 or RS485 ports.
  • Output for proportional solenoid valve.
  • Key for selecting foot control or two-hand control.
  • Selectable languages: Italian, English, French, German, Spanish, Hungarian, Swedish or Portuguese.
  • Possibility of upgrading control unit Firmware via appropriate software.
  • Activation and control of the electrodes dressing (optional)