ESAB A2-A6 PEK - INTRODUCTION; Control Unit Architecture

INTRODUCTION
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© ESAB AB 2017
INTRODUCTION
Block diagram of the PEK
Design structure of the control unit
PEK is a control unit for power sources intended for submerged arc welding (SAW) and for
gas metal arc welding (GMAW) The control unit includes a motor control for use together
with automatic welding machines, column and booms.
It has connections for:
• welding power source
• emergency stop
• CAN bus
• USB-memory (Fromserialno.628-xxx-xxxx the unit is equipped with a second USB
connector, located inside the unit on the MMC/Welding data board.)
• motors
• control of flux/gas
• encoders
• limit switches
• the ESAB WeldCloud™ Mobile unit (via Ethernet connection)
(fromserialno.628-xxx-xxxx)
1AP1 MMC module
The control unit has an MMC with processor, memory, control buttons and a display. The
MMC is connected to the welding power source and the motor control board with a 500
kbit/s CAN bus. The unit is powered with 12 V supplied via the CAN connection.