A001 Control Card - Kemppi Minarc Evo 150 Service Manual

Service manual Minarc Evo 150 and 180
Both primary modules NTCs are integrated inside the module:

Measure the resistance, it should be between 60-15kΩ in a cool machine (in
environment temperature 0-40°C)

While temperature rises resistance lowers and at 2kΩ point the inverter stops and gives
overheat alert.

A broken NTC has usually hundreds of kilo ohms resistance, no value at all or short
circuit.

4.3.2. A001 control card

24
Kemppi Oy
Version 1.3
PTC common point
Main transformer PTC
resistor
Rectifier/PFC module NTC
resistor
NTC common point
NTC common point
IGBT module NTC resistor
30.9.2015