
2301D/2301D-EC Digital Control
Manual 26247
16
Woodward
Idle/Rated Software Switch
It is also possible to use a software Idle to Rated switch. The engine starts and
go to the idle set point, after a tunable delay time rated is selected and the speed
reference ramps to rated speed. This switch is enabled in Configure menu
A**Engine and Speed Control** parameter 16 ENABLE AUTO IDLE/RATED (set
to TRUE). In Service menu G**Speed Setting** parameter 14 DELAY TIME IDLE
TO RATED can be adjusted to set the delay time before rated is selected.
CB Aux/Droop Contact
The input switch or relay contact used to activate the Load Control connects to
terminal 34 (default). This discrete input is used to switch the control into
isochronous mode, which allows the Load Control Function to operate. It is
typically connected to an auxiliary contact on the generator circuit breaker. When
the breaker closes, the input switch or relay contact should also close. When the
external switch or relay contacts are open, the control will operate in Droop
Mode. A switch in series with the auxiliary contact on the generator circuit
breaker will allow manually selecting Droop Mode or Base Load/Isochronous
Mode. Open this switch for Droop Mode. Close this switch for Base
Load/Isochronous Modes.
When both the droop contact and circuit-breaker auxiliary contact are closed, the
control is in the isochronous load-sharing mode (Figure 2-2). In this mode the
internal load-sharing-line relay is energized, the droop signal is disabled
permitting isochronous load sharing, and the load-matching circuit is connected
to the load-sharing lines. The Generator Load contact at terminal 37 must be
closed for isochronous load sharing, otherwise the generator load will be
controlled at the unload trip level, and the internal relay will not energize to allow
load sharing.
The control is in the droop mode whenever the circuit-breaker
auxiliary contact is open. If a single prime mover is required to run
isochronously with an isolated load, enter Load Droop Percent = 0.0
when making *LOAD SETTING * adjustments.
Figure 2-2. Droop Contact and Circuit Breaker Auxiliary Contact
Содержание 2301D
Страница 12: ...2301D 2301D EC Digital Control Manual 26247 4 Woodward Figure 1 1a 2301D Outline Drawing Ordinary Locations ...
Страница 13: ...Manual 26247 2301D 2301D EC Digital Control Woodward 5 Figure 1 1b 2301D Outline Drawing Hazardous Locations ...
Страница 14: ...2301D 2301D EC Digital Control Manual 26247 6 Woodward Figure 1 2a 2301D Plant Wiring Diagram sheet 1 ...
Страница 16: ...2301D 2301D EC Digital Control Manual 26247 8 Woodward Figure 1 2c 2301D Plant Wiring Diagram notes ...
Страница 51: ...Manual 26247 2301D 2301D EC Digital Control Woodward 43 Figure 3 4 Typical Transient Response Curves ...
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Страница 129: ...Declarations ...