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• +15Vdc in Stick and Lift TIG mode
8
HVPON
• 0Vdc in TIG HF mode
• +5Vdc only during Power Up sequence
9
READY_OK
• 0V during normal operation condition
• +15Vdc in Stick mode
10
COOLER
• 0V in both TIG modes
• 0V=normal value
11
TH1
• 15Vdc +/- 10% = thermic activated on
inverter board
• For 315DC:
50A=1Vdc_150A=3Vdc_300A=6Vdc
12
DUTY
• For 415DC:
50A=0,75Vdc_150A=2,2Vdc_400A=6Vdc
13
LS
23Vdc +/- 10% in OCV condition
14
ILIM
• 0V=normal value
15
TH2
• 15Vdc +/- 10% = thermic activated on
output board
• 13Vdc +/- 10% any modes in stand-by
16
/TR
• 0Vdc = trigger pushed
• 24Vdc +/- 10% = gas solenoid OFF
17
SOL
• 0Vdc = Gas solenoid ON
• 0V=HF OFF
18
HF
• 15Vdc +/- 10% = HF ON (only for 3
seconds after trigger pushed)
19
SGND
20
300/400
0Vdc=300A
• +24Vdc +/- 10% = FAN OFF
21
FAN
• 0Vdc = FAN ON
22
FAN DRIVE
• +5Vdc +/- 10% with FAN OFF
23
FAN SPEED
• 0Vdc with FAN ON
24
VRIF
J4: To Remote connector (front Panel)
Pin#
Description
1
SGNDA
2
TR
3
POTW
4
REMD
5
POTL
6
Not used
Not Used
SGND
5Vdc +/- 10% =400A
+5V any condition
Not Used
Value (use GNDA as 0V ref.)
SGNDA
From 0 VDC to 10Vdc
+15Vdc
0Vdc
Not used
Only when in TIG HF mode +15Vdc are applied to
pin 1 of HF connector
Cooler ON/OFF
Thermostat on the inverter heat sink signal
Output current set signal
Lift TIG mode detection signal
Not Used
Thermostat on the output heat sink signal
Trigger signal
Gas solenoid ON/OFF
HF ON/OFF
Control board machine identification
FAN ON/OFF
Not used
Notes
Insulated from the SGND
Remote Trigger
Remote Potentiometer Wiper
Remote Potentiometer Low
Not used
56
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