Woodward DSLC, Installation And Operation Manual, Page: 37 / 114

Manual 02007 DSLC Digital Synchronizer and Load Control
Woodward 31
15. Lower Load Rate is the rate at which the load is decreased when the lower
load command input is activated. This is also the maximum rate at which
load is decreased when the 4–20 mA remote load setting input is changed
in the decrease load direction. [In droop, the Lower Load Rate setting is only
approximate due to dependence on the gain of the speed control's bias
input.]
16.
4mA Remote Load is the desired load reference when the remote load
setting input is equal to 4 mA. This setting may be higher or lower than the
20 mA remote load setting.
17.
20mA Remote Load is the desired load level when the remote load setting
input is equal to 20 mA. This setting may be higher or lower than the 4 mA
remote load setting.
18.
High Limit PU (pick up) is the generator load where (if enabled) the High
Limit discrete output is energized and (if enabled) the high limit alarm is
activated. The High Limit PU set point also limits the maximum load
reference setting.
19.
High Limit DO (drop out) is the load where (if enabled) the High Limit
discrete output is de-energized and (if enabled) the high limit alarm
deactivated.
20.
High Limit Alarm specifies if the high limit alarm will activate (de-energize)
the alarm driver, terminal 28.
21.
Low Limit PU is the generator where (if enabled) the Low Limit discrete
output is energized and (if enabled) the low limit alarm is activated. The Low
Limit PU set point is also the minimum load reference setting.
22.
Low Limit DO is the generator load where (if enabled) the Low Limit
discrete output is de-energized and (if enabled) the low limit alarm
deactivated.
23.
Low Limit Alarm specifies if the low limit alarm will activate (de-energize)
the alarm driver, terminal 28.
24.
Load Limit Switches specifies if the High or Low Limit outputs, terminals
26 and 27, will activate on high or low limit alarm.
25.
Load Switch PU is the load level where the load switch will activate
(terminal 25) if Reverse Power Trip is disabled.
26.
Load Switch DO is the load level where the load switch will deactivate
(terminal 25) if Reverse Power Trip is disabled.
27.
Reverse Power Trip enables or disables the load switch output, terminal
25, as the Reverse Power Trip.
28.
Instant Reverse Power activates the load switch output, terminal 25,
immediately when the %KW is below this setting, if the Reverse Power Trip
is enabled.
29.
Rev Pwr Time Delay and Reverse Pwr Level are used to determine the
time delay before energizing the load switch output when the generator is
being motored, and the Reverse Power Trip is enabled.