WOODWARD 2301E Digital Load Sharing and Speed Control for Engines

Product positioning and model

2301E is a microprocessor digital controller launched by Woodward, used for engine speed regulation and generator load distribution, compatible with 2301A/2301D systems and enhanced in functionality.

Model:

8273-1011：24VDC， Ordinary places

8273-1012：24VDC， Dangerous places (Zone 2, Ex ec IIC T3/T4)

Power supply: 18-36VDC, power consumption ≤ 600mA

Environment: Operating temperature * * -40~+70 ℃ * *, anti vibration, anti EMC

Core control function

speed control

Closed loop PID regulation, supporting idle/rated dual speed, acceleration/deceleration ramp, remote acceleration/deceleration

Dual set of dynamic parameters (Dynamics # 1/# 2), which can be switched by auxiliary contacts of the circuit breaker

load control

Three modes: droop control Droop, synchronous and error free Isochronous, and base load

Support multi machine parallel load sharing, soft loading/unloading, and circuit breaker linkage

Fuel restriction

Start fuel limit, maximum fuel limit, idle fuel limit

Torque limit (3-stage speed breakpoint), intake pressure MAP limit (5-stage pressure)

Advanced features

Load pulse/load shedding compensation: predict sudden load changes and suppress speed fluctuations

Adaptive filtering: Suppressing engine torsional vibration and MPU noise

Circuit breaker disconnection pulse: prevent overspeed

Hardware interface (key terminals and parameters)

Type Terminal Specification

Voltage sampling PT 1-3 90-120V/200-240VAC

Current sampling CT 4-9 with built-in Burgen ＜ 0.1VA/phase

Load sharing line 10-12 analog current sharing bus with ESD protection

The actuator outputs 13-15 0-20mA/4-20mA/PWM, with forward/reverse options available

Digital input 34-41 8-way, 24VDC, customizable function

Digital output 44-47 4-channel, 200mA, relay driven

Analog input 19-24 channels, 4-20mA/1-5V/± 2.5V

Analog output 16-17 4-20mA, configurable speed/load/fuel quantity

Speed sensor MPU 25-26 100-25000Hz, 1.7-35VAC

9-pin RS-232 communication (debugging) RS‑422 (Modbus)

Software and Configuration

Configure software

Control Assistant: Parameter editing, trend, waveform recording, file backup

2301E Toolkit: Wizard based Configuration, Service Menu, Fault Viewing

Core configuration items

Rated speed (50/60Hz), number of gear teeth, overspeed protection (default 115%)

Digital IO function, analog type, actuator mode

Drop percentage (0-12%), loading/unloading rate, base load range

Modbus communication

Protocol: RTU mode, baud rate 9600-11520bps

Function: Read and write digital quantity, read and write analog quantity, diagnosis, remote start stop

Slave address: 1-247

Debugging and Calibration

Initial setup

Rated speed, number of gear teeth, overspeed point, actuator direction

Idle/rated speed, acceleration/deceleration time (default is 20 seconds)

Dynamic tuning

Proportional gain, integral reset, actuator compensation

Window width, gain ratio, 5-point gain mapping (suitable for nonlinear fuel systems)

Load calibration

CT phase correction, KW zero and gain calibration

Load sharing gain and droop coefficient adjustment

Protection and fault diagnosis

shutdown protection

Overspeed, MPU failure, analog malfunction, external shutdown, configuration error

call the police

Load sensor failure, load sharing line failure, analog quantity abnormality

diagnostic methods

LED: green=running, red=I/O lock, flashing red=fault

Event recording, data recording, real-time monitoring of Service menu

Modbus Status Bit Remote Diagnosis

Application and Authentication

Application: Diesel/Gas Generator Sets, Marine Auxiliary Machinery, Traction Power, Backup Power, Multi Machine Parallel Systems

Certification: CE, ATEX, CSA, ABS, BV, CCS, DNV, LR and other classification society certifications