72 MAN. PS 254 EN – Ind. 2
! The sequencer card (21700633)
The sequencer card includes several block
functions:
• Central program unit (CPU) composed
principally of the microchip and the
memory.
• Power control.
• Rotation motor control, based on the
principle of PWM (Pulse Width
Modulation).
• Wire motor control, identical to the control
of the rotation motor.
• 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.
Fig. 4.19 : Sequencer card
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