WELDING CONTROL UNIT TE 91 

TE 91 is a microprocessor welding control unit for single-phase resistance welders. The welding control unit is used to control the welder parts and, in particular, the thyristor regulating the welding current. The working cycle carried out by the TE 91 is described through the programming parameters. The TE 91 can be used for both hand-operated and pneumatic welders.
 
te91 image MAIN FEATURES 
bullet Synchronous thyristor drive.
bullet Phase shift control for welding current adjustment.
bullet Simplified programming by means of four push-buttons.
bullet Twin presetting for time and current, recallable by two independent controls.
bullet Slope and pulse functions.
bullet Single and repeat operating mode. 
bullet Secondary current compensation function for welding of oxidised sheets and rods. 
bullet Autoretain function disabling for manually operated welders. 
bullet First phase shift delay adjustment. It enables the machine line current best balance.
bullet Control of solenoid valve 24 Vdc 7,2 W Max with protected output against short circuits.
 

PROGRAMMABLE PARAMETERS

PARAMETER RANGE
SQUEEZE 01 - 99 cycles
WELD TIME 01 - 99 cycles
CURRENT 01 - 99 %
HOLD 01 - 99 cycles
OFF TIME 01 - 99 cycles
COMP. OFF / COMP. ON  00 - 01
SINGLE / REPEAT 00 - 01
WELD TIME 2 00 - 99 cycles
CURRENT 2 00 - 99 %
SLOPE 00 - 29 cycles
COLD 01 - 50 cycles
IMPULSE NUMBER 00 - 09
 

Specifications subject to change without notice.