Thunder Laser RF Tube and Fan Control Board Ports and LED 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 D7P3 - 48V fan control for Housing - Speed of Fan indicated by D8P4 - 48V RF Tube Fan Speed Output - Speed of Fan indicated by D9P7 - 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 ConnectorP9 - Output signal of RF Tube Alarm - No connection - 5V means no alarmP10 - 24V Power Input for the Fan Control BoardP11 - Output signal for Alarm Status of the RF tube from the Fan Board to the TL TimerRJ1 - Output signals to the RF Tube
LED Status Indicators and Functions:
During power up, the lights may come on as part of a self test. You should only read the light status after the machine is homed and 48V is applied to the fan board.
D1 - Pre-Ionization Status Incomplete - Light Off means Ionization is CompleteD2 - RF Tube Temperature Alarm (>65C, 149F) - On means Alarm PresentD3 - Indicates that the Fan board is receiving the 48V power on P1D5 - RF Tube Power Supply Voltage out of range (47V-49V), On means Alarm PresentD7 - Housing Fan Speed Indicator on P2 - Brightness of LED indicates Fan SpeedD8 - Housing Fan Speed Indicator on P3 - Brightness of LED indicates Fan SpeedD9 - RF Tube Fan Speed Indicator on P4 - Brightness of LED indicates Fan SpeedD10 - Indicates that the 5V signal from the Ruida Controller U-Axis connector is ok on P8D11 - Indicates an RF Tube alarm - On = OK, no alarmD15 - 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 boardPin 1 - No ConnectionPin 2 - Blue Wire - Pre-ionization Error Signal to TL Timer - 5V means pre-ionization is complete and OKPin 3 - Brown wire - Temperature Alarm to TL Timer - 5V on is normal, temperature OKPin 4 - Black wire - Power Supply Status Alarm to TL Timer - 5V on is normal, power supply is within rangePin 5- Green\Yellow Wire - Normal or Smart mode for Fan Control - 0V means Intelligent Mode, 5V is standard modeFan Board Rj1 to RF Laser Tube "Ethernet" Port
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 | |
Testing:
To test some of the signals you will need a sacrificial ethernet cable. Cut the end off the cable and separate the 8 wires.
To test the 5v Enable signal with a meter set to DC:
This 5V signal starts on the U Axis connector on the Ruida controller for the Rotary.
Ethernet Control Enable signal wires:
7 White/Brown (Control Enable)
8 Brown (GND)
To test the PWM signal from the ruida controller:
This signal starts on the Ruida CN5 controller and is the LPWM-1 and GND signals
Ethernet PWM signal wires:
Wire 1 White/Orange (PWM+)
Wire 6 Green (PWM-)
Tie these 4 wires together: (This will turn off the 3 red LED under the ethernet port on the fan board and fake out the TUBE ok signals to the controller)
Wire 7 White/Brown
Wire 5 White/Blue
Wire 3 White/Green
Wire 4 Blue
Use the alignment screen or pulse button to set up a 50% power pulse that you can hold on with the button and measure between the White/Orange and Green. You should get around 2.5VDC. You can adjust the power percent and it should scale like 1-99% power is 0-5vdc roughly. You may have to bypass the doors if you cannot get the cable out of the back lid with the door shut enough to be closed.
60Watt RF Tube Status LED signals:
Since the Nova Plus signals are NOT wired to the fan board or TL timer, you will need to use the LED's on the bottom of the tube to determine the status.
Reference Articles:
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