Control Board Pc1 Test Point Values (115 Vac Model) - Hobart Welding Products Handler 135 Technical Manual

6-5. Control Board PC1 Test Point Values (115 VAC Model)

a) Tolerance − 10% unless specified
Receptacle Pin
RC1 1
2
3,4
5
6
7
8
RC2 1
2
3
4
RC4 −−
RC5 −−
TP A
TP B
TP C
TP D
TP E
TP F
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PC1 Voltage Readings
Voltage Readings:
24 volts ac input, reference to pin RC1-2
24 volts ac input, reference to pin RC1-1
35 volts dc with transformer thermostat closed, reference to pin TP-C
35 volts dc with gun trigger closed, reference to TP-C
35 volts dc, reference to TP-C
15.0 volts dc, reference to TP-C
15.0 to 6.5 volts dc from min to max of Wire Feed speed control R1, Reference for TP-C
Negative (−) welder output voltage
Not used
Positive (+) output to wire drive motor
Negative (−) output to wire drive motor
Circuit common
Positive (+) welder output voltage with gun trigger closed
35 volts dc, reference to TP-C
15 volts dc, reference to TP-C
Circuit common
30 volts dc, reference to TP-C
15 volts dc with Wire Speed control R1 at minimum, reference to TP-C
11 volts dc with Wire Speed control R1 at maximum, reference to TP-C
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a) Tolerance
specified
b) Reference − to circuit common
unless noted
b) Reference − as noted
Value
− 10% unless
TM-944 Page 27