The microprocessor control functions of the Woodward 2301E are based on the 2301A (load sharing and speed control) and the 2301D (load sharing and speed control). The controller is housed in a sheet metal chassis, suitable for both standard and hazardous locations, and consists of a single printed circuit board.
Configuration of the 2301E is done using a computer with the Control Assistant software or Woodward’s ToolKit service tool. The configuration software is available for download on the Woodward website (www.woodward.com). The computer connects to the 2301E via a 9-pin connector (RS-232 port). Modbus control can be managed through the second serial port (RS-422).
The controller operates from a 24 Vdc power supply.
Here is the translation:
The 2301E includes:
– 1 Load sensor circuit
– 1 Actuator driver: 4-20 mA, 0-20 mA, 0-200 mA, or PWM
– 1 MPU speed sensor
– 1 Configurable analog output
– 2 Configurable analog inputs
– 8 Discrete inputs (switches)
– 4 Discrete outputs (relay drivers)
The 2301E operates in a temperature range of -40 to +70°C (-40 to +158°F).
*Modbus is a registered trademark of Schneider Automation Inc.
Thanks to the flexible configuration software integrated into the 2301E hardware, application variants can now be selected using an external computer (PC). Modifications like adjusting the engine speed range, gear teeth count, and forward or reverse action are done through software configuration.
The 2301E communicates using the Modbus®* RTU protocol, operating as a Modbus slave, via RS-422 drivers.
Operating Modes
The 2301E has four operating modes:
Speed Control
Offers multiple dynamic flexibility. Works on pumps or compressors and supports 4-20 mA remote speed reference via a configurable analog input.
Isochronous Load Sharing
Compatible with most existing analog load-sharing speed control systems. Now with loading and unloading capabilities.
Droop Base Load
Adjustable load control through discrete raise/lower contacts.
Isochronous Base Load
Allows operation at a constant load level against a utility bus. The load setting can be fixed, with adjustments made using discrete inputs or a remote 4-20 mA input.
Technical Features:
– Engine/generator or pump applications
– Multiple dynamics
– Manifold Air Pressure (MAP) limiter
– Torque limiter
– Low-speed sensing functionality
– Remote speed and load reference
– Soft load transfer
– Automatic switch to idle
– Load rejection/load pulse option
– Idle droop functionality
– Optional Modbus® serial communication
– Adaptive speed sensing algorithm
– Two serial ports
– Data logging capability
– 2301E service tool: ToolKit or Control Assistant
– Standard or hazardous location chassis
