User I/O Controls - Lincoln Electric CWT ATC-3 Operator's Manual

2.5

USER I/O CONTROLS

The control also provides a user I/O interface for remote control of the ATC-3. There are two isolated
Solid State Relay (SSR) outputs CR1 (TRACK ON) and CR2 (TOUCH RETRACT ACTIVE). There are
two Isolated inputs INP1 (MOVE TO TORCH UP POSITION) and INP2 (REMOTE TRACKING
ON/OFF) is used to start and stop Tracking from an external control. The SSR outputs are rated at 28
VDC @ 100ma and the inputs are rated at 12 – 28 VDC @ 10 ma. The inputs and outputs provide
galvanic isolation from the ATC-3 controller. The ATC-3 also provides a non-isolated 24 VDC @ 100
ma source that for operating the ATC-3 I/O.
The following is a functional description of the ATC-3 I/O:
INP 1 - If the ATC-3 is idle then setting this input will move the torch to the Torch UP
•
position
INP 2 - If the ATC-3 is idle mode or if the ATC-3 has an Arc On condition then the Torch
•
Height tracking will be enabled. If Tracking is activated with this input then when the
Input is set low the tracking is turned off.
• CR1 - TRACK ON - Is set When the Track On function is running. It is cleared when the
tracking function is off.
CR2 - TOUCH RETRACT RUNNING - Is set when the Touch retract routine is active and
•
is cleared when complete. This is used to provide a touch reference voltage signal to the
torch when not welding.
J4
WHT
1
"INP1"
BRN
2
"INP2"
GRN
3
"ICOM"
YEL
4
"CR1"
GRY
5
"CR2"
PNK
6
"OCOM"
BLU
7
"+24 VDC"
RED
8
"PCOM"
SHLD
REMOTE I/0
TYPICAL USER INPUT CONFIGURATION
J4
WHT
1
"INP1"
BRN
2
"INP2"
GRN
3
"ICOM"
YEL
4
"CR1"
GRY
5
"CR2"
PNK
6
"OCOM"
BLU
7
"+24 VDC"
RED
8
"PCOM"
SHLD
REMOTE I/0
TYPICAL USER OUTPUT CONFIGURATION
"OSC ON"
USER SUPPLIED +24
"INITIALIZE"
USER SUPPLIED COM
GND
"READY" OUTPUT
"OSC ON" OUTPUT
USER SUPPLIED +24 VDC
GND
FIGURE 2-6 – User I/O Configuration
11
"OSC ON"
J4
WHT
1
"INP1"
BRN
2
"INP2"
GRN
3
"ICOM"
"INITIALIZE"
YEL
4
"CR1"
GRY
5
"CR2"
PNK
6
"OCOM"
BLU
7
"+24 VDC"
RED
8
"PCOM"
SHLD
REMOTE I/0
GND
ALTERNET USER INPUT CONFIGURATION
J4
WHT
1
"INP1"
BRN
2
"INP2"
GRN
3
"ICOM"
YEL
4
"READY" OUTPUT (+24 VDC)
"CR1"
GRY
5
"OSC ON" OUTPUT (+24)
"CR2"
PNK
6
"OCOM"
BLU
7
"+24 VDC"
RED
8
USER INPUT COMMON
"PCOM"
SHLD
REMOTE I/0
GND
TYPICAL USER OUTPUT CONFIGURATION