Hypertherm POWERMAX 800 User Manual

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MAINTENANCE
Service Manual
TP8
TP1
TP2
TP4
TP6
TP3
TP7
TP9
P3
TP11
TP16
TP19
TP20
TP18
Figure 3-6 Control Board Test Points and LED Locations
Test Point Description Value
TP1 Transfer signal. A logic high (12V) indicates that the arc is transferred.
TP2 Start signal. A logic high (12V) indicates that the torch start switch is on.
TP3 GND
TP4 +12V
TP5 Unregulated DC voltage. Approximately 30VDC at nominal input voltage.
TP6 +18V
TP7 INV-ON signal. A logic high (12V) indicates that the inverter is on.
TP8 Transfer latch signal. A logic high (12V) indicates that unit is in transferred mode.
TP9 Temp OK signal. A logic high (12V) indicates that all temperatures are OK.
TP10 Continuous PA threshold voltage. Set to 3.55V by P3.
TP11 7.0V
TP15 Error amplifier reference voltage. During inverter operation this signal is 1.915V at 50A current
setting and .75V at 20A current setting.
TP16 Error amplifier output voltage
TP17 Reference voltage 2.50V
TP18 Output current value signal 38.3mv/amp
TP19 Wiper voltage. 2.5V at 50A current setting and 1.00V at 20A current setting.
TP20 GND
TP21 Buffered, inverted, capacitor feed version of pulse width modulator B signal.
TP22 Buffered, inverted version of pulse width modulator A signal.
Fuses
F1,F2 Cap sensor circuit protection .5A (see Parts List for part number and specifications)
F3,F4 Start circuit protection .5A (see Parts List for part number and specifications)
Control Board Test Points
9-96
D24
D25
D26
D27
D15
D8
D29
D35
TP15
D42
TP17
TP21
TP22
TP5
TP10
D38
F1
F2 F3
F4

Hypertherm POWERMAX 800 Specifications

General

Brand	Hypertherm
Model	POWERMAX 800
Category	Cutter
Language	English