Winco DGC-2020 - Manual (Page 211)

9400200990 Rev K DGC-2020 Maintenance and Troubleshooting i
SECTION 7
 MAINTENANCE AND
TROUBLESHOOTING
TABLE OF CONTENTS
SECTION 7
 MAINTENANCE AND TROUBLESHOOTING.................................................................... 7-1
MAINTENANCE ..................................................................................................................................... 7-1
Backup Battery for the Real Time Clock ............................................................................................ 7-1
TROUBLESHOOTING........................................................................................................................... 7-1
Communications................................................................................................................................. 7-1
Ethernet Port Does Not Operate Properly ...................................................................................... 7-1
USB Port Does Not Operate Properly ............................................................................................ 7-2
CANbus Communication Does Not Operate Properly.................................................................... 7-2
Inputs and Outputs ............................................................................................................................. 7-2
Programmable Inputs Do Not Operate as Expected ...................................................................... 7-2
Programmable Outputs Do Not Operate as Expected ................................................................... 7-2
Metering/Display................................................................................................................................. 7-2
Incorrect Display of Battery Voltage, Coolant Temperature, Oil Pressure, or Fuel Level .............. 7-2
Incorrect Display of Generator Voltage .......................................................................................... 7-2
Incorrect Measurement or Display of Generator Current ............................................................... 7-2
Incorrect Display of Engine RPM.................................................................................................... 7-3
Generator Breaker and Mains Breaker .............................................................................................. 7-3
Generator Breaker Will Not Close to a Dead Bus .......................................................................... 7-3
Generator Breaker Will Not Close to a Live Bus ............................................................................ 7-3
Generator Breaker Does Not Open When It Should ...................................................................... 7-4
Mains Breaker Does Not Open When Mains Fails ......................................................................... 7-4
Mains Breaker Does Not Close After Mains Returns ..................................................................... 7-4
Synchronizer....................................................................................................................................... 7-5
Determining if the Synchronizer is Active ....................................................................................... 7-5
Synchronizer Not Active ................................................................................................................. 7-5
Synchronizer Active for a Short Time, Then Stops ........................................................................ 7-5
Synchronizer Does Not Lower Engine Speed Allowing Alignment of Bus and Generator ............. 7-5
Synchronizer Does Not Raise Engine Speed Allowing Alignment of Bus and Generator ............. 7-5
Synchronizer Does Not Lower the Generator Voltage to Achieve Matching of Bus and Generator
Voltages .......................................................................................................................................... 7-5
Synchronizer Does Not Reduce Generator Voltage to Achieve Matching of Bus and Generator
Voltages .......................................................................................................................................... 7-5
Speed Bias ......................................................................................................................................... 7-5
Engine Speed Does Not Change When Speed Bias Voltage Changes......................................... 7-5
Engine Speed Decreases When Speed Bias is Increased ............................................................ 7-6
Engine Speed Increases When Speed Bias is Decreased ............................................................ 7-6
Voltage Bias ....................................................................................................................................... 7-6
Generator Voltage Does Not Change When Voltage Bias Changes ............................................. 7-6
Generator Voltage Decreases When AVR Speed Bias is Increased ............................................. 7-6
Generator Voltage Increases When Speed Bias is Decreased...................................................... 7-6