PN-0908073 Rev. 11 71-92
PS 164-2
THE ART OF WELDING
◊ The sequencer card (21700633)
The sequencer card includes several block func-
tions:
• Central program unit (CPU) composed principally
of the microchip and the memory.
• Power source control.
• Rotation motor control, based on the principle of
PWM (Pulse Width Modulation).
• Wire motor control, identical to the control of the
rotation motor.
Fig. 6.20 - Sequencer card
• Shielding gas control.
• Coolant control.
• Interface with the manual torch
• Interface with the I²C bus for the external links
and especially with the synoptic card.
• Power supplies.
To Next Page
