Smithco Switch Pro Installation & Operation Manual - Manual (Page 31)

Manual No. 016-0171-219 27
Coverage Map Issues
CAN Troubleshooting
Although the control algorithm is located within the CAN node, all of the same troubleshooting techniques used
in a traditional hard-wired system still apply to a CAN system. CAN allows for modularization of the control
system, but the behavior of the system remains the same. Flow and speed sensors, as well as the control
valve and boom valves, are used in the same manner.
The following issues are some common causes for communication failures:
Issue Possible Cause Solution
Gaps displayed in
coverage map
Section widths not
configured correctly
Check boom widths and boom center values
Guidance and section
widths not the same
Set the guidance width and overall section widths to the same value.
Product coverage
displayed in zero rate
zones.
Vibration chatter in
encoder. Make sure that the encoder is firmly mounted. Increase value in “Zero
Rate Tolerance.”
Valve or motor is not
set to close
completely
Adjust valve or motor to close or stop completely with no rate applied.
Cannot achieve target
rate
Driving too fast for
vehicle
Speed may exceed capabilities of vehicle to deliver product. Slow the
vehicle down during application or configure product control hardware to
supply a higher amount of product.
Calibration numbers
incorrect
Check and adjust meter calibration, density, and other calibration values.
Speed calibration
incorrect
Check and adjust speed calibration setting.
Issue Possible Cause Solution
Console or CANbus
cannot read the Switch
Pro nodes
Switch Pro is not
properly connected
Check Switch Pro auxiliary power connection.
Check the CANbus connection to the Switch Pro and re-initialize the
console to read the Switch Pro nodes.
No Power to Switch
Pro
Ensure console is powered on.
Check console power and ground lead connections. Refer to the
console’s Installation & Operation Manual for further console power
troubleshooting.
Weak or dirty power
to the CAN nodes Verify at least +10V DC is present on the auxiliary power output
connector.
Corrosion in CAN
connections Disconnect and clean the CAN connections.
Check the CAN terminators.
CANbus not
terminated properly Make sure that both ends of the CANbus systems are properly
terminated.