Basler Electric DGC-2020HD - Manual (Page 300)

290 9469300990 Rev B
Maintenance and Troubleshooting DGC-2020HD
Inputs and Outputs
Programmable Inputs Do Not Operate as Expected
Step 1. Verify that all wiring is properly connected. Refer to the Typical Applications chapter.
Step 2. Confirm that the inputs are programmed properly.
Step 3. Ensure that the input at the DGC-2020HD is actually connected to the BATT – terminal (P4-49).
Programmable Outputs Do Not Operate as Expected
Step 1. Verify that all wiring is properly connected. Refer to the Typical Applications chapter.
Step 2. Confirm that the outputs are programmed properly.
Metering/Display
Incorrect Display of Battery Voltage, Coolant Temperature, Oil Pressure, or Fuel Level
Step 1. Verify that all wiring is properly connected. Refer to the Typical Applications chapter.
Step 2. Confirm that the sender negative terminals are connected to the negative battery terminal and
the engine-block side of the senders. Current from other devices sharing this connection can
cause erroneous readings.
Step 3. If the displayed battery voltage is incorrect, ensure that the proper voltage is present between
the BATT+ terminal (P4-48) and the sender negative terminals.
Step 4. Verify that the correct senders are being used.
Step 5. Use a voltmeter connected between the BATT – terminal (P4-49) and the sender negative
terminals on the DGC-2020HD to verify that there is no voltage difference at any time. Any
voltage differences may manifest themselves as erratic sender readings. Wiring should be
corrected so that no differences exist.
Step 6: Check the sender wiring and isolate sender wiring from any of the ac wiring in the system. The
sender wiring should be located away from any power ac wiring from the generator and any
ignition wiring. Separate conduits should be used for sender wiring and any ac wiring.
Incorrect Display of Generator Voltage
Step 1. Verify that all wiring is properly connected. Refer to the Typical Applications chapter.
Step 2. Ensure that the proper voltage is present at the DGC-2020HD voltage sensing inputs (P8-86,
P8-88, P8-90, and P8-91).
Step 3. Verify that the voltage transformer ratio and sensing configuration is correct.
Step 4. Confirm that the voltage sensing transformers are correct and properly installed.
Incorrect Measurement or Display of Generator Current
Step 1. Verify that all wiring is properly connected. Refer to the Typical Applications chapter.
Step 2. Ensure that the proper current is present at the DGC-2020HD current sensing inputs 1, 2, 3, 4,
5, and 6.
Step 3. Verify that the current sensing transformer ratios are correct.
Step 4. Confirm that the current sensing transformers are correct and properly installed.
Incorrect Display of Engine RPM
Step 1. Verify that all wiring is properly connected. Refer to the Typical Applications chapter.
Step 2. Verify that the Flywheel Teeth setting is correct.
Step 3. Verify that the prime mover governor is operating properly.