page 33
Supply voltages
On the MAPRO pcb, all internal supply voltages are generated from the output of the control transformer.
Schematic
DK-MAPRO
X9
18V AC
1
2
+24V DC +15V DC
+5V DC
+5V DC
ext.
-15V DC
+3,3V DC
+15V DC
CAN
potential free
+5V DC
CAN
potential free
DSP
(Process)
Microcontroller
(Master)
Di󰀨erent supply voltages are monitored by the Microcontroller (Master) and the DSP (Process).
If the 24V drops below 17V the machine will stop and displays E14 (Op. voltages error).
If the 24V are higher than 36V the machine will stop and displays E02 (mains overvoltage).
Voltage limits
supply voltage limit result
+24V < 17V shutdown with E14
+24V > 36V shutdown with E02
The actual values of the 24V and 15V can be checked via the front panel in menu Extras, Diagnosis, Op. Volt-
ages.
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