320 Steam Turbine Control
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The 320 is a configurable controller that provides
automatic startup sequencing, speed control, and process control for a
one-valve or two-valve steam turbine driving a generator or mechanical
load (e.g. pump, fan, compressor). Standard features include:
- Completely automatic turbine startup
- Configurable speed bands, with separate ramp rates and
idle times
- Critical speed band avoidance
- Speed and process setpoint control from the front
panel, analogue inputs, digital inputs, or serial communications
- One additional stand-alone PID controller
- Flexible, configurable I/O
- Modbus serial data communications
- Powerful, user-friendly PC Configurator
- Keypad and four-line vacuum fluorescent display
operator interface
The 320 is available in Generator Control and Mechanical
Drive Control Versions, as described below:
Generator Control Features
- Integral automatic/manual synchronization and
generator breaker closure
- Megawatt cascade control
- Inlet, extraction/induction, and backpressure control
combinations
- Selectable priority (power or pressure) for two-valve
turbines
- Load limit control
Mechanical Drive Control Features
- Process cascade control (choice of suction pressure,
discharge pressure, or flow)
- Interactive speed and extraction/induction control
- Special Single Automatic Speed/Inlet Pressure
two-valve control (SASIPR)
- Selectable priority (power or pressure) for two-valve
turbines
- Inlet valve (V1) limit control
Powerful
PC Configurator
 The
320 Configurator is a Windows-based software application that allows the
user to configure the controller from a PC. The Configurator makes setup
easy with features like an expandable parameter view, drop down menus,
and check boxes. Detailed online help minimizes the need to refer to the
User's Guide during configuration. Configurations can be easily
downloaded/uploaded to/from the 320. A comparison feature makes it easy
to recognize the differences between two configuration files. The 320
Configurator allows real-time monitoring of I/O values and states,
calculated values, and alarm and trip history.
Selectable real-time trending and recording are also available.
| Electrical
Design Specifications |
| Power
Feed: |
DC
version: 20V-32V DC (1.5A @ 24V DC)
Additional 24V DC must be provided by user for field loop power.
AC version: 85V-250V AC, 43Hz-67Hz (1.5A @ 120V AC)
Up to 1.0A of 24V DC available for field loop power
(AI, DI, DO) |
| Pulse Inputs: |
Up to 4 Inputs (2
std), 20 - 20,000 Hz, 1V RMS sensitivity, 0.5 RPM accuracy |
| Analog Inputs: |
Up to 16 Inputs (6
std), 0 - 20mA, 12 bit, 0.2% accuracy |
| Analog Outputs: |
Up to 8 Outputs (4
std), 0 - 20mA, 12 bit, 0.2% accuracy |
| Digital Inputs: |
Up to 16 Inputs (8
std), 24V DC, 120V AC, or 120V DC |
| Digital Outputs: |
6 Outputs (std), 24V
DC (1.1A @ 25°C) or 120V AC (1.1A @ 25°C ) |
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| Mechanical
Design Specifications: |
| Operating Temperature: |
0°C - 55°C (32°F -
131°F) - refer to User's Guide for restrictions |
| Humidity: |
5% - 95%,
non-condensing |
| Vibration: |
Per axis: sinusoidal,
2.0 G acceleration, 10 to 150 Hz |
| Shock: |
15 G for 11 ms, half
sine, in each axis |
| Enclosure Rating: |
NEMA 4, painted steel |
| Overall Size: |
24"W x 20"H
x 8"D |
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| Agency
Certifications |
| Electrical Safety: |
UL 508, CSA C22.2 |
| Hazardous Area: |
UL 1604 (Class 1, Div
2, Groups A, B, C, D) |
| CE Mark: |
European Union EMC
Directive No. 89/336/EEC
Low Voltage Equipment Directive No. 72/23/EEC |
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