Table of Contents
Advertisement
INPUT BOARD VOLTAGE TEST (continued)
J3: Input/Output connector
Pin#
Description
• 6Vdc +/- 10% in stick mode in OCV
condition
1
MIS_V
• 0,6 Vdc +/- 10% TIG modes in OCV
condition
2
Not used
3
-5V
• 2Vdc=150A – 3,6Vdc=270A for 315DC
4
MIS_I
• 1Vdc=100A – 4Vdc=400A for 415DC
5
SGND
6
+24
• 13Vdc +/- 10% any modes in stand-by
7
/TR
• 0Vdc = trigger pushed
8
LS
23Vdc +/- 10% in OCV condition
9
Not used
• 0V=normal value
10
TH2
• 15Vdc +/- 10% = thermic activated on
output board
11
+15V
12
Not used
J4: Fan
Pin#
Description
Idle Value/Ref (use SGND as 0V ref.)
1
SGND
2
FAN DRIVE
• +5Vdc +/- 10% with FAN OFF
3
FAN SPEED
• 0Vdc with FAN ON
• +24Vdc +/- 10% = FAN ON
4
FAN COM
• 0Vdc = FAN OFF
J5: Gas solenoid
Pin#
Description
Idle Value/Ref (use GND as 0V ref.)
1
SGND
• +24Vdc +/- 10% = Gas Solenoid ON
2
GAS COM
• 0Vdc = Gas Solenoid OFF
J6: Water Cooler
Pin#
Description
1
RS1
• 400Vac with pin 8 "RCOOLER"
2
Not used
3
GND
• +12Vdc(not insulated) with COOLARC
connected
4
+24VNI
• +24Vdc(not insulated) with COOLARC
disconnected
5
Not used
6
Not used
7
Not used
8
RCOOLER
• 400Vac with pin 1 "RS1"
9
Not used
• 0V= normal value
10
WATERERR
• +12Vdc(not insulated) = water flow
sensor alarm
J7: HF Board
Pin#
Description
Idle Value/Ref (use GND as 0V ref.)
1
HF COM
2
+24Vdc
• 0V= HF OFF
3
HF
• +15Vdc= HF ON (only for 3 seconds
after trigger pushed)
4
SGND
Value (use SGND as 0V ref.)
Not used
-5Vdc
SGND
+24Vdc
Not used
+15Vdc
Not used
SGND
+5V any condition
SGND
Value
Not used
GND (non insulated)
Not used
Not used
Not used
Not used
+15Vdc
+24Vdc
SGND
Notes
Output voltage feedback
Not Used
-5Vdc
Output current feedback
Secondary GND for power supply (0V ref.)
+24Vdc
Trigger signal
Lift TIG mode detection signal
Not Used
Thermostat on the output heat sink signal
+15Vdc
Not used
Notes
Secondary GND for power supply (0V ref.)
FAN ON/OFF command
Notes
Secondary GND for power supply (0V ref.)
Gas Solenoid ON/OFF command
Notes
Coolarc supply voltage
Not used
Not used
Not used
Not used
Coolarc supply voltage
Not used
Water flow sensor signal
Notes
only when TIG HF is selected
Always in any modes
HF ON/OFF Command
Secondary GND for power supply (0V ref.)
46
Advertisement
Table of Contents
