Basler Electric DGC-2020 - Manual (Page 353)

SECTION 8
• MAINTENANCE AND
TROUBLESHOOTING
TABLE OF CONTENTS
SECTION 8
• MAINTENANCE AND TROUBLESHOOTING .................................................................... 8-1
Maintenance ........................................................................................................................................... 8-1
Backup Battery for the Real Time Clock ............................................................................................ 8-1
Troubleshooting ..................................................................................................................................... 8-1
Communications ................................................................................................................................. 8-1
Ethernet Port Does Not Operate Properly ...................................................................................... 8-1
USB Port Does Not Operate Properly ............................................................................................ 8-2
CAN Bus Communication Does Not Operate Properly .................................................................. 8-2
Inputs and Outputs ............................................................................................................................. 8-2
Programmable Inputs Do Not Operate as Expected ...................................................................... 8-2
Programmable Outputs Do Not Operate as Expected ................................................................... 8-2
Metering/Display ................................................................................................................................. 8-2
Incorrect Display of Battery Voltage, Coolant Temperature, Oil Pressure, or Fuel Level .............. 8-2
Incorrect Display of Generator Voltage .......................................................................................... 8-2
Incorrect Measurement or Display of Generator Current ............................................................... 8-3
Incorrect Display of Engine RPM .................................................................................................... 8-3
DGC-2020 Indicates Incorrect Power Factor .................................................................................. 8-3
LCD is Blank and all LEDs are Flashing at Approximately 2 Second Intervals .............................. 8-3
Generator Breaker and Mains Breaker .............................................................................................. 8-3
Generator Breaker Will Not Close to a Dead Bus .......................................................................... 8-3
Generator Breaker Will Not Close to a Live Bus ............................................................................ 8-4
Generator Breaker Does Not Open When It Should ...................................................................... 8-5
Mains Breaker Does Not Open When Mains Fails ......................................................................... 8-5
Mains Breaker Does Not Close After Mains Returns ..................................................................... 8-6
Synchronizer....................................................................................................................................... 8-6
Determining if the Synchronizer is Active ....................................................................................... 8-6
Synchronizer Not Active ................................................................................................................. 8-6
Synchronizer Active for a Short Time, Then Stops......................................................................... 8-7
Synchronizer Does Not Lower Engine Speed Allowing Alignment of Bus and Generator ............. 8-7
Synchronizer Does Not Raise Engine Speed Allowing Alignment of Bus and Generator.............. 8-7
Synchronizer Does Not Lower the Generator Voltage to Achieve Matching of Bus and Generator
Voltages .......................................................................................................................................... 8-7
Synchronizer Does Not Raise Generator Voltage to Achieve Matching of Bus and Generator
Voltages .......................................................................................................................................... 8-7
Speed Bias ......................................................................................................................................... 8-7
Engine Speed Does Not Change When Speed Bias Voltage Changes ......................................... 8-7
Engine Speed Decreases When Speed Bias is Increased ............................................................ 8-7
Engine Speed Increases When Speed Bias is Decreased ............................................................ 8-7
Voltage Bias ....................................................................................................................................... 8-7
Generator Voltage Does Not Change When Voltage Bias Changes ............................................. 8-7
Generator Voltage Decreases When AVR Speed Bias is Increased ............................................. 8-8
Generator Voltage Increases When Speed Bias is Decreased ...................................................... 8-8
Load Sharing ...................................................................................................................................... 8-8
Generator Breaker Status is not being received by the DGC-2020 ............................................... 8-8
Generator Runs at Incorrect Speed when Generator Breaker is Closed ....................................... 8-8
Generators Do Not Share Load Equally ......................................................................................... 8-9
Load Sharing Works Correctly, but a Single Unit Slows Down ...................................................... 8-9
DGC-2020 Front Panel Debug Screens ........................................................................................... 8-10
LOAD SHARE DEBUG ................................................................................................................. 8-10
CONTROL DEBUG ...................................................................................................................... 8-11
CEM DEBUG ................................................................................................................................ 8-13
AEM DEBUG ................................................................................................................................ 8-14
9400200990 Rev X DGC-2020 Maintenance and Troubleshooting i