General - Kemppi Minarc Evo 150 Service Manual

Service manual Minarc Evo 150 and 180 Version 1.3 30.9.2015

2. GENERAL

Minarc Evo 150 and 180 are new generation small MMA machines. It is not based on any existing
machine. It is totally new design electrically and mechanically. Machine has a power factor correction in
the primary side to meet the latest European regulations.
The Minarc Evo machines are for MMA-welding and scratch TIG can be used as well. MMA open circuit
voltage is 90VDC or 30VDC with VRD activated.
Minarc Evo can be connected to the mains supply of 230VAC 1~. PFC makes possible to weld with the
full power (MMA 140A/MMA 170) even when modern circuit breakers are used.
Minarc Evo control card software cannot be reprogrammed in the field.
Overvoltage watch is 300VAC and under voltage watch is 110VAC; voltage must be increased back to
160VAC to get the inverter back to full operation after the under voltage situation.
Current range is 10-140A in MMA and 10-150A in TIG mode for Evo 150 and 10-170A in MMA and 10-
180A in TIG for Evo 180.
Minarc Evo discharges the DC link voltage after switching the main switch off by running the cooling fan
as long as the control electronics is wake.
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