Always check unit before applying power (see Sections 6-1 thru 6-18).
TM-229 409 Page 48
Extreme 360
6-30. Front Panel/Display Board PC3 Test Point Values
PC3 Voltage Readings
a) Tolerance
−
±
10% unless specified
b) Reference
−
to circuit common
(lead 42) unless noted
Receptacle
Pin
Type
Value
RC1
1
Output
Output reference; 1 volt dc per 425 amperes of weld output when machine is under load
2
Output
Voltage feedback; 1 volt dc per 10 volts dc of weld output
3
Input
Current feedback; 1 volt dc per 100 amperes of weld output
4
Not Used
5
Output
Output enable; 0 volts dc = ON, +15 volts dc = OFF
6
Not Used
7
Boost relay coil return; +24 volts dc = relay contacts open, 0 volts dc = relay contacts closed
8
Gas valve coil return; +24 volts dc = valve closed (no gas flow), 0 volts dc = valve open
9
Output
Fan enable; +5 volts dc = fan on,
−
15 volts dc = fan off
10
Not Used
11
Input
HF transformer over current detect; 0 volts dc = OK, +5 volts dc = OVERCURRENT
12
Not Used
13
Output
+5 volts dc reference voltage for thermistors
14
GND
Circuit common referenced to chassis
15
Input
Secondary side thermistor return; +2 volts dc at 25
°
C thermistor temperature
16
GND
Circuit common referenced to chassis
17
Input
Primary side thermistor return; +2 volts dc at 25
°
C thermistor temperature
18
GND
Circuit common referenced to chassis
19
Input
Foldback; decreases weld output if input bus voltage drops, 0 volts = OK, +15 volts dc 15Khz pwm
squarewave = foldback
20
GND
Circuit common referenced to chassis
21
Input
+24 volts dc, unregulated dc voltage with respect to GND, power feed to front panel pcb
22
Input
+24 volts dc, unregulated dc voltage with respect to GND, power feed to front panel pcb
23
Input
−
24 volts dc, unregulated dc voltage with respect to GND, power feed to front panel pcb
24
Input
−
24 volts dc, unregulated dc voltage with respect to GND, power feed to front panel pcb
RC2
1
Input
Negative weld output terminal; used for output voltage feedback
2
Not Used
3
Input
Positive weld output terminal; used for output voltage feedback
RC50
A
Output
23 volts ac RMS at 10 amps; 14
−
pin remote accessory power
B
Input
Remote output enable; 0 volts ac = weld output off, 23 volts ac RMS = weld output on
C
Output
Output signal to remote command reference; 0 to 10 volts dc
D
GND
Remote command reference signal common
E
Input
Input signal from remote command; 0 to 10 volts dc
F
Output
Current feedback; 1 volt dc per 100 amperes of weld output
Содержание EXTREME 360
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