Process Controller PEK

PEK is a system for automatic power sources 

PEK is a system adapted for use with ESAB’s automatic power sources LAF 631/1001/1251/1601, TAF 801/1251 and Aristo® 1000 AC/DC. The control  system is connected to the power source via a control cable and incorporates a CAN bus system for data transfer.

PEK can also be used as a motion controller to integrate  other power sources for mechanization and automation. The control system is easy to use thanks to its clear text menu. Users can choose between a large number of different languages. The large display keeps the user informed about the main parameters including current, voltage and travel speed. Parameter sets can be given names for easier assignment.. Five soft keys can be configured according to individual preferences. PEK supports your system’s maintenance and keeps track of its use.

ESAB standard motors and travel axis can be selected from a list and other motors can be programmed manually.

Additional functionality
More functions are available by adding an external analogue or digital interface.

Welding parameter limits
PEK allows defined limits for the settings and the measured parameters. The welder will be alerted if the weld parameters are outside the allowed limits.

Makes welding safer and easier
A USB slot enables users to file all settings and configurations. Restore your valuable production data within minutes. Security is provided by three-level user accounts. Users can also transfer welding parameters between other PEK units.




  • Supports SAW, ESSC, Carbon Arc Gouging and GMAW (limited) processes
  • Pre-setting of all welding parameters (total of 255 sets)
  • Programmable sequential welding (distance measuring via encoder feed back)
  • Heat input visible on display
  • High resolution encoder feed-back from (wire feed and motion control)
  • Internal USB for data backup and external USB for system upgrades and transferring welding parameters between PEK units
  • Programmable I/O controlled pattern for wire  cladding
  • Motion control of 2-axis as stand alone unit
  • WeldCloud enabled via Ethernet


  • General Manufacturing
  • Heavy Fabrication
  • Industrial and General Fabrication
  • Control Systems


Connection voltage from the power source
Connection power
Motor drives connection of 2 motors,
Speed control feedback
Welding speed
Max man. travel speed
Wire feed speed
Valve output
Connection to power source
Max ambient temperature
Min ambient temperature
Relative humidity of air
Dimensions lxwxh
Enclosure class
42V AC 50/60 Hz
max 900 VA
motor current 6A cont., max 10A
from pulse encoder
0.1-2 m/min (depending on travel carriage)
2 m/min
0.3-25 m/min (depending on wire feed unit)
(flux or gas) 1 pc, 42V AC, 0.5A
for connection of sensors or limit switches
Burndy connector 12-poles
246 x 235 x 273 mm
6.6 kg
EN-60974-1, EN-60974-10


Process Controller PEK
0460 504 880


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