Basler Electric DGC-2020 - Manual (Page 146)

indicate an off mode cooldown is in progress. In addition, the unit will display “OFF MODE COOLDN”
while the cooldown timer is displayed.
If the RUN button is pressed while an Off Mode Cooldown is in progress, the cooldown will be aborted
and the unit will go to RUN mode.
If the AUTO button is pressed while an Off Mode Cooldown is in progress, the Off Mode Cooldown is
cleared and the unit returns to normal AUTO operation. Thus, if conditions exist where the unit would
normally run in AUTO, it will resume running in AUTO. If conditions exist where the unit would normally
shut down in AUTO, the unit will finish the remaining cooldown cycle then stop and remain in AUTO.
If Off Mode Cooldown is not enabled, pressing the OFF button once at any time will immediately force the
unit to OFF mode.
The Off Mode Cooldown feature works from the front panel HMI buttons only. Any OFF command
received through BESTlogicPlus or BESTCOMSPlus control result in an immediate transition of the
machine to OFF.
If the NFPA level setting is set for 1 or 2, the Off Mode Cooldown enable setting is cleared and OFF mode
cooldown is not allowed.
Restart
Attempting to start an engine after a normal shutdown before the engine RPM has settled to zero can
stress an engine in certain situations. The Restart Delay
N inhibits attempts to start the engine immediately
after a normal shutdown for the duration of the Restart Delay timer. This delay should allow an engine to
properly spin down before attempting to restart.
The BESTCOMSPlus Crank Settings screen is illustrated in Figure 4-28.
Figure 4-28. Crank Settings
A Cranking Style: Cycle or Continuous.
B Number of Crank Cycles: Adjustable from 1 to 7 cycles in 1 cycle increments. Controllers configured for
NFPA compliance have a 1 to 3-cycle range.
C Cycle Crank Time: Adjustable over the range of 5 to 15 s in 1 s increments.
D Rest Time: Adjustable from 5 to 15 s in 1 s increments.
E Continuous Crank Time: Adjustable from 5 to 60 s in 1 s increments. Controllers configured for NFPA
compliance have a 1 to 45 second range.
F Crank Disconnect Limit: Adjustable from 10 to 100% of nominal engine speed.
G Pre-Crank Delay: Adjustable from 0 to 30 s in 1 s increments.
H Pre-Start Contact Configuration: Open After Disconnect or Closed While Running.
I Prestart Rest Configuration: Off During Rest, On During Rest, or Preheat Before Crank.
J Oil Pressure Crank Disconnect Enable: Disable or Enable.
K Crank Disconnect Pressure (psi): Adjustable from 2.9 to 150 psi in 0.1 psi increments, 0.2 to 10.3 Bar in
0.1 Bar increments, or 20 to 1,034.5 kPa in 0.1 kPa increments.
L No Load Cool Down Time: Adjustable from 0 to 60 min in 1 min increments.
M Off Mode Cool Down Enable: Enable or Disable.
N Restart Delay: Adjustable from 0 to 120 s in 1 s increments.
4-36 DGC-2020 BESTCOMSPlus
® Software
9400200990 Rev X