Winco DGC-500 - Manual (Page 28)

DGC-500 Functional Description 3-8
NOTE
The run-time counter and maintenance timer values are updated in volatile memory once per
minute. Updated values are saved to nonvolatile memory when the Auto/Off/Run mode of
operation is changed. Additionally, while the engine is running, the run-time counter value is
saved to nonvolatile memory every 15 minutes. If the battery power source fails during DGC-
500 operation, these values are not updated and the changes made after the last save
operation to nonvolatile memory are irretrievably lost.
Programmable
Two programmable outputs (PROGRAM OUTPUT1, 2) can be user-configured to close for a variety of
conditions.
Either programmable output can be programmed to close during any of the following operating conditions.
C
Cooldown timer active
C EPS supplying load
C Pre-start condition in effect
C
Switch not in Auto
C
Programmable Input 1 closed
C Programmable Input 2 closed
C Programmable Input 3 closed
Either of the programmable outputs can be configured to give a pre-alarm indication by closing during any of
the following pre-alarm conditions.
C
Battery charger failure
C Battery overvoltage
C
Fuel leak
C
Fuel leak/sender failure
C High coolant temperature
C
Low battery voltage
C
Low coolant level
C Low coolant temperature
C
Low fuel
C
Low oil pressure
C Scheduled maintenance due
C
Weak battery voltage
Either of the programmable outputs can be configured to give an alarm indication by closing during any of the
following alarm conditions.
C
Battery charger
C Coolant temperature sender failure
C Emergency stop
C
Fuel leak
C
High coolant temperature
C Loss of voltage sender failure
C
Low coolant level
C
Low fuel
C Low oil pressure
C MPU speed sender failure
C
Oil pressure sender failure
C
Overcrank
C Overspeed
SOFTWARE OPERATION
Embedded software controls all aspects of DGC-500 operation. DGC-500 software controls power-up
initiation, HMI configuration, engine cranking, contact input monitoring, fault detection and annunciation,
system parameter monitoring, output contact control, and communication.
Power-Up Sequence
When battery power is applied, the DGC-500 initiates a power-up sequence. During power-up, DGC-500
memory is checked and the LCD displays the embedded software version. Then, all configuration data stored
in nonvolatile EEPROM (electronically erasable programmable read-only memory) is brought into main
memory and the DGC-500 begins operating in Normal mode. When operating in Normal mode, all enabled
functions are active and all inputs are monitored.
Cranking
The DGC-500 can be programmed for either continuous engine cranking or cycle engine cranking.