Chapter 10
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UM10350_PCNC770_Manual_0916A
Troubleshooting
• DC power LED – Indicates voltage on the DC bus, power to axis drivers
• X-, Y-, Z-drivers – Green indicates power to each individual drive, red indicates a fault
• A-driver – Green indicates power to the drive, red indicates a fault
• Control board LED1 – Indicates power to the control board
• Control board D10 – Blinking indicates speed signal from operang system, while manual
speed demand is not shown
• Control board D15 – Brightness indicates speed signal to spindle driver
10.5 System Troubleshooting
Use the owchart in Figure 10.3 to determine where to start troubleshoong the electrical system.
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