Thunder Laser RF Tube Fan Control Board Ports and Indicators for Troubleshooting

Thunder Laser RF Tube Fan Control Board Ports and Indicators for Troubleshooting

Preface: This article is high level information about the Fan Board ports and indicators and troubleshooting based of the visual observations. It is very technical


Fan Board Layout:


Fan Board Designations
Fan Board Wiring Connections




Port Designations and Functions:

P1 48V power Input - Power will only be present after Machine is homed (initialized)
P2 - In Parallel with P3 and used as a backup (no connection from factory) Speed of Fan indicated by D7
P348V fan control for Housing - Speed of Fan indicated by D8
P4 -  48V RF Tube Fan Speed Output - Speed of Fan indicated by D9
P7 - PWM Input signal from the Ruida Controller (L-PWM and GND on CN-5) 
P8 - Laser OK to fire from Ruida Controller Input - 5V From U-Axis Connector
P9 - Output signal of RF Tube Alarm - No connection - 5V means no alarm
P10 - 24V Power Input for the Fan Control Board
P11 - Output signal for Alarm Status of the RF tube from the Fan Board to the TL Timer
RJ1 - Output signals to the RF Tube

LED Status Indicators and Functions:

D1 - Pre-Ionization Status Incomplete - Light Off means Ionization is Complete
D2 -  RF Tube Temperature Alarm (>65C, 149F) - On means Alarm Present
D3 - Indicates that the Fan board is receiving the 48V power on P1
D5 - RF Tube Power Supply Voltage out of range (47V-49V), On means Alarm Present
D7 - Housing Fan Speed Indicator on P2 - Brightness of LED indicates Fan Speed
D8Housing Fan Speed Indicator on P3 - Brightness of LED indicates Fan Speed
D9 - RF Tube Fan Speed Indicator on P4 - Brightness of LED indicates Fan Speed
D10 - Indicates that the 5V signal from the Ruida Controller U-Axis connector is ok on P8
D11 - Indicates an RF Tube alarm - On = OK, no alarm
D15 - Indicates that the Fan Board is powered on by the 24V feed on P10

Fan Board Control Voltage Sections:


24V Section
48V Section





More Detailed Port Information:


Fan Board P11 Wiring:

These signals go to the TL Timer board

Pin 1 - No Connection
Pin 2 - Blue Wire - Pre-ionization Error Signal to TL Timer - 5V means pre-ionization is complete and OK
Pin 3 - Brown wire -  Temperature Alarm to TL Timer - 5V on is normal, temperature OK
Pin 4 - Black wire - Power Supply Status Alarm to TL Timer - 5V on is normal, power supply is within range
Pin 5- Green\Yellow Wire - Normal or Smart mode for Fan Control - 0V means Intelligent Mode, 5V is standard mode

Fan Board Rj1 to RF Laser Tube "Ethernet" Port


RJ45 Pin and Wire Colors
Pin Functions





LED and Port Truth Table:


Indicator Designation
Normal State
Pre-Conditions and Notes
D1
Off
Is on until the machine completes initialization, then On if alarm condition exists
D2
Off
Is on until the machine completes initialization, then On if alarm condition exists
D3
Off

D5
Off
Is on until the machine completes initialization, then On if alarm condition exists
D7
Off
Spare in parallel with D8
D8
Varies in Brightness
Fan Speed indicated by Brightness of LED
D9
Varies in Brightness
Fan Speed indicated by Brightness of LED
D10
On

D11
On

D15
On

P11 - Pin 2 - Blue
5V

P11 - Pin 3 - Brown
5V

P11 - Pin 4 - Black
5V







Reference Articles:




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