LORCH V Series User Manual

page 42
Monitoring bus voltage
The bus voltage is monitored by the DSP (Process) directly. As soon as the bus voltage is too low or too high, the
machine will stop and displays the corresponding error message:
E22 : Mains undervoltage 1
E23 : Mains overvoltage
E30 : Mains undervoltage 2
Should the mains voltage be too low at both power units (only at V40 or V50), only the error message with the
highest number is displayed (E30).
Schematic
LED6
DCDRV1
X1 / 10
X1 / 4
X2 / 10
X2 / 4
CPLD DSP
+15V
DCDRV2
DK-MAPRO
LED4
X1 / 9 X2 / 9
+15V
LED6
X1 / 10
X1 / 4
X3 / 10
X3 / 4
+15V
LED4
X1 / 9 X3 / 9
+15V
+U bus1
-U bus1
+U bus2
-U bus2
max. bus volt ok
min. bus volt ok
max. bus volt ok
min. bus volt ok
Voltage limits
bus voltage LED4 LED6 optocoupler output
min. bus volt. ok (pin 10)
optocoupler output
max. bus volt. ok (pin 9)
error message
0 - 250V on o󰀨 high low E22, E30
255V - 700V on on low low -
705V -
∞
o󰀨 on low high E23

LORCH V Series Specifications

General

Brand	LORCH
Model	V Series
Category	Welding System
Language	English