Hypertherm HD3070 Plasma Arc Cutting System w/ Automatic Gas Console - Manual (Page 191)

5-66 HD3070 with Automatic Gas Console Instruction Manual
17
MAINTENANCE
1XPCB3
Control Board LED Status Indicators
Power Supply
The control board 1XPCB3 provides LEDs to notify the user when certain voltages are present and when other
certain functions occur in the HD3070 system as described below. The power supply front cover must be removed
to observe control board and the LEDs (Figure 5-7).
• +5V LED1 – Illuminates to indicate that +5 volts is available to microprocessor.
• Transfer LED2 – Illuminates to indicate that arc current has transferred to workpiece.
• Start LED3 – Illuminates to indicate that a start/run command is active in the system.
• Lock LED4 – Illuminates to indicate that interlocks from power distribution board are okay.
• Error Code LED5 – Flashes to indicate an error, if any, in the last start-stop cycle. The flash is coded to
indicate an error number. Refer to Error Codes and Messages, Power Supply Control Board Error Codes
earlier in this section.
• +12D LED6 – Illuminates to indicate that +12 volts is applied to digital circuitry.
• +12A LED7 – Illuminates to indicate that +12 volts is applied to analog circuitry.
• Current LED8 – Illuminates to indicate that feedback current is at the input to the analog circuit.
Figure 5-7 Power Supply Control Board LED Locations
Current
LED8
+5V
LED1
Lock
LED4 Start
LED3 Transfer
LED2
+12D
LED6 Error Code
LED5
+12A
LED7