Winco DGC-2020 - Manual (Page 133)

9400200990 Rev B DGC-2020 Maintenance and Troubleshooting 7-1
SECTION 7
• MAINTENANCE AND
TROUBLESHOOTING
MAINTENANCE
Preventative maintenance consists of periodic replacement of the backup battery (optional) and
periodically checking that the connections between the DGC-2020 and the system are clean and tight.
DGC-2020 units are manufactured using state-of-the-art, surface-mount technology. As such, Basler
Electric recommends that no repair procedures be attempted by anyone other than Basler Electric
personnel.
Backup Battery for the Real Time Clock
The backup battery for the real time clock is an option available for the DGC-2020 Digital Genset
Controller. A 3.0 Vdc, 190-mAh lithium battery (type Rayovac BR2032) is used to maintain clock function
during loss of power supply voltage. In mobile substation and generator applications, the primary battery
system that supplies the DGC-2020 power supply may be disconnected for extended periods (weeks,
months) between uses. Without battery backup for the real time clock, clock functions will cease if battery
input power is removed.
The backup battery has a life expectancy of approximately 10 years. After this time, you should contact
Basler Electric to order a new battery, Basler Electric P/N 38526.
Battery access is located on the rear side of the DGC-2020.
TROUBLESHOOTING
If you do not get the results that you expect from the DGC-2020, first check the programmable settings for
the appropriate function. Use the following troubleshooting procedures when difficulties are encountered
in the operation of your genset control system.
Incorrect Display of Battery Voltage, Coolant Temperature, Oil Pressure, or Fuel Level
Step 1. Verify that all wiring is properly connected. Refer to Figures 6-3 through 6-10.
Step 2. Confirm that the SENDER COM terminal (11) is 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 (3) and the SENDER COM terminal (11).
CAUTION
It is recommended that the battery be removed if the DGC-2020 is to be operated
in a salt-fog environment. Salt fog is known to be conductive and may short-
circuit the battery.
CAUTION
Replacement of the backup battery for the real-time clock should be performed
only by qualified personnel.
NOTE
Do not short-circuit the battery, reverse battery polarity, or attempt to recharge
the battery. Observe polarity markings on the battery socket while inserting a
new battery. The battery polarity must be correct in order to provide backup for
the real-time clock.