Microcontroller Based Spot Welding Controller Spotpic

Features

• Compact user-friendly micro controller based circuitry.

• Double initiation foot switch, FS1 operates the solenoid valve and FS2 controls welding operation.

• Non-Volatile Memory (EEPROM) to store up to 15 weld schedules.

• Easy to program with UP / DOWN and ENTER keys. A two-digit LED display indicates set values. Individual operations within a weld schedule indicated by LEDs.

• Key lock Switch provided for SET & RUN mode. WELD / NO WELD switch provided on the front panel.

• Timings settable in terms of HALF / FULL cycles of mains supply frequency to achieve better resolution. Precise time and energy control ensures consistent weld quality.

• Relay contact output provided to actuate the Motor Drive of the welding machine.

Specifications

• Input Supply : 230V / 415V AC, 50Hz / 60Hz

• Output : Gate-Cathode Drive signal to drive a pair of back to back thyristors of any capacity.

• Compensation : Supply voltage fluctuation compensation. (Output voltage remains within ± 3 % as against ± 15% variation in mains voltage).

• Trigger : External Normally Open contact of footswitch or limit switch.