Doosan A0509 Installation Manual page 70

If the configurable digital I/O is used as a general digital I/O, various low current operations such as
solenoid valves for voltage and signal exchanges with PLC systems or peripherals can be performed.
The following is how to use the configurable digital I/O:
•
If dry contact input is received
This is a method of connecting a switch or contact between the VIO terminal of terminal blocks
TBCI1-TBCI4 and Ixx terminals. The output of the external device only acts on the open/close of the
contact through the relay, so it is electrically insulated from external devices.
K1
NPN output
PNP output
(Sink type)
(Source type)
with Relay
with Relay
•
If wet contact input is received
It receives voltage type signals from external devices. If the output of the target device is source
type, it receives a voltage of 24V/0V as input. If the output of the target device is sink type, a relay
can be added to receive voltage of 24V/0V as input. Because voltage input requires a reference, the
external devices and the external power supply must be connected to a common ground.
K1
PNP output
(Source type)
NPN output
(Sink type)
with Relay
Doosan Robotics Installation(A-Series) Manual v1.8
Dry Contact Connection
K1 K2
K2
Wet Contact Connection
24V
(Voltage/Current from Ext. Source)
K1
SW
Pushbutton
/ Switch
Common Ground
Safety Controller
VIO (24V)
VIO
TBCI1~TBCI4
SW
I01~I16
GIO
Safety Controller
VIO (24V)
VIO
TBCI1~TBCI4
I01~I16
GIO
70
Board
Board