page 49
PE (Protective Earth) -Protection
The PE monitoring is a standard feature in every machine. As soon as a current >15A is
owing via the PE wire of the mains cable, a reed-contact opens up and the machine stops with E04-01 PE-moni-
toring.
Schematic
DRV
DSP
PE
X15-1
X15-2
-Uz
+3.3V
Cooling unit
Since January 14th 2016 the water cooled machines of the MicorMIG series are equiped with a water monitoring.
A sensor is mounted in the water tank, that is washed around by the cooling water of the return-ow. The sensor
is a “self-heating” sensor: the temperature is decreasing as soon as the water is owing over it. If the water is not
owing, the temperature of the sensor is kept stable.
If the pump is running and a ow of the water cannot be detected for longer than seven seconds, the machine
stops with the error message E05.
Schematic
SF27
X8-1
X8-3
MAPRO
X6-1
X6-2
X6-1
X6-2
DSP
tank
pump
hose connector blue
hose connector red
cooler
sensor
Since November 2017 with the software release 2.09 the water surveilance time was enhanced from
7 seconds to 10 seconds.
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