Mitsumi electronic 55K Welding System User Manual


 
INSTALLATION AND WIRING
20
4) Sink logic type
In this logic, a signal switches on when a current flows out of the corresponding signal input terminal.
Terminal SD is common to the contact input signals. Terminal SE is common to the open collector
output signals.
R
R
STF
STR
SD
Current
AX40
SE
RUN
24VDC
R
R
1
9
Inverter
Current flow related to RUN signal
When using an external power supply for transistor output, use terminal PC as a common to prevent
misoperation caused by undesirable current. (Do not connect terminal SD of the inverter with terminal
0V of the external power supply. When using terminals PC-SD as a 24VDC power supply, do not install
the power supply in parallel outside the inverter. Doing so may cause misoperation due to undesirable
current.)
1
2
3
4
5
6
9
10
DC
24V
SD
PC
RES
RL
RM
RH
STR
STF
AY40 type
transistor output
module
DC24V
(SD)
Inverter
2