TE550 is a Tecna microprocessor welding control unit for resistance welders.
The purpose of welding control is to manage the components of the welder, in particular the controlled diodes that performs the adjustment of the welding current.
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 also on seam welders and on serial spot-welding machines too.
Moreover, it may work with power adjustment; both in constant current and in constant energy (optional).
The number of inputs and outputs, can be increased in order to adapt the control of authomatic welding machines.
It is possible to store up to 250 different welding programs, 31 of which are recalled directly from an external device.
Each program consists in several programmable parameters describing 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.