Miller DYNASTY DX, Technical Manual

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TM-357 Page 30 Dynasty DX
6-7. 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 Value
RC1 1 +24 volts dc input
2 +15 volts dc under load with the Process Switch S6 in either DC (+) position;.0 volts dc with S6 in
either DC (–) position. For either AC position of S6, 0 to +15 volts dc under load depending on set-
tings of Balance and AC Freq. Controls.
3 +24 volts dc input
4 +1 volt dc input per 10 volts dc of weld output
5 –24 volts dc input
6 +15 volts dc input when HELP 1 screen is displayed, 0 volts dc with normal conditions
7 –24 volts dc input
8 0 to +10 volts dc output from min to max of Balance/Dig control R44
9 Circuit common
10 Circuit common
11 –24 volts dc output with fan motor FM off, –10 volts dc with fan motor FM on
12 Zero (0) volts dc input during normal operation, +15 volts dc input when HELP 8 screen is displayed
13 +15 volts dc output with Mode switch S3 in lift arc position
14 +15 volts dc input during normal operation, 0 volts dc input when HELP 6 screen is displayed
15 +15 volts dc output with Process switch S3 in Stick position, 0 volts dc input with S3 in Tig position
16 +15 volts dc input during normal operation, 0 volts dc input when HELP 7 screen is displayed
17 +15 volts dc output with output on, 0 volts dc input with output off
18 +15 volts dc with Mode switch S3 in droop (stick) position, 0 volts dc input with S3 in GMAW or
GTAW position
19 +15 volts dc output with High Frequency on, 0 volts dc input with High Frequency off.
20 +1 volt dc input per 100 amperes of weld output
21 –24 volts dc output with gas valve GS1 deenergized, –10 volts dc input with GS1 energized.
22 0 to +10 volts dc output from min to max of Amperage Adjustment control R2
23 Not used
24 Not used
RC2 1 0 to +10 volts dc output from min to max of Amperage Adjustment Control R2
2 Circuit common
3 Reference common
4 Not used
5 +1 volt dc output per 10 volts dc of weld output
6 +1 volt dc output per 100 amperes of actual or preset amperage output
7 0 to +10 volts dc input from min to max of Remote Amperage Adjustment Control
8 24 volts dc input, contactor
RC4 1, 2 Approximately 33 k ohms at 68
°
F (20
°
C) with thermistors plugged in
RC5 1, 2 Approximately 33 k ohms at 68
°
F (20
°
C) with thermistors plugged in