Woodward 2301E, Инструкция по установке и эксплуатации, Страница: 82 / 182

2301E Digital Control Manual 26641
72 Woodward
05 SEL GAIN FUNCTION dflt = 1 (1
–3)
Set this value for the appropriate function:
o
Set to “1” to make the slope breakpoints dependent on percent engine fuel
demand (Actuator %). This is the typical value.
o
Set to “2” to select the 5-slope gain map load axis to be based on percent
generator load (%).
o
Set to 3 for non-generator applications and where the dynamic slope gain
map should be dependent on the engine speed.
06 DISPLAY GAIN FUNCTION (monitor)
This menu item displays the gain value selected in the previous menu: Actuator
%, Load % or Engine Speed.
07 ENABLE IDLE DROOP dflt = FALSE (TRUE, FALSE)
Idle Droop is used when an engine is unloaded quickly or is operated at a very
low idle speed. Idle Droop is based on the controls output current. When the
output actuator
current drops below the “Idle Breakpoint” setting or goes to
minimum fuel during rapid deceleration, the Idle Droop will increase the speed
reference to allow the engine to come under control quicker, and reduces speed
undershoot. This is typically used for marine or variable-speed applications.
08 OVERSPEED SETTING (RPM)
dflt = 1035.00 (0.00
–4000)
Set this for the maximum speed that the engine will see, typically 115% of rated
speed. The 2301E initiates a shutdown when the engine speed reaches this
level.
09 RST TO RATED AT CB CLOSE
dflt = TRUE (TRUE, FALSE)
This value when set to True will reset the speed bias to rated, after the circuit
breaker is closed. If set to False, the speed could have a small error in it due to
the speed bias.
10 RST TO RATED INSTANT dflt = TRUE (TRUE, FALSE)
This value when set to True will reset the speed bias to rated instantly, after the
circuit breaker is closed. If set to False, the ramp rate to rated is slower.
11 ENABLE AUTO IDLE/RATED dflt = FALSE (TRUE, FALSE)
An automatic idle to rated switch which activates rated after idle is reached and a
certain time has expired. Tunable in service mode.
12 REMOTE SPD LOCK IN LAST dflt = FALSE (TRUE, FALSE)
This value when set to True will lock in the last value of remote speed, if the
analog input drops below or raises above the low threshold for that input type.
The value will also lock if the communications fails, if using Modbus commands.
An alarm will trigger, if activated. A Reset is required to reset the failed input.
When this value is set to False, the speed will ramp down to the Lower Speed
Limit on the event of a failed analog input.
13 REMOTE LOAD LOCK IN LAST
dflt = FALSE (TRUE, FALSE)
This value when set to True will lock in the last value of remote load, if the analog
input drops below or raises above the low threshold for that input type. The value
will also lock if the communications fails, if using Modbus commands. An alarm
will trigger, if activated. A Reset is required to reset the failed input. When this
value is set to False, the load will ramp down to the Baseload Minimum setting
on the event of a failed analog input.
14 RESET RATED REF ON SD? dflt = TRUE (TRUE, FALSE)
This value when set to True will instantly reset the speed reference back to the
Rated Speed Reference on an engine shutdown.