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General| Power Supply | 24 VDC |
|---|---|
| Application | Steam Turbine Control |
| Display | LCD |
| Communication Protocols | Modbus |
| Operating Temperature | -40°C to +70°C |
| Inputs | Analog, Digital |
| Outputs | Analog, Digital |
| Enclosure Rating | NEMA 4X |
Details the Flex505 controller's features, including CPU, display, communications, and I/O capabilities.
Illustrates the back cover label and terminal block layout for wiring connections.
Provides checks for power, Ethernet, RS-232, and RS-485 wiring to ensure proper operation.
Details the three available turbine start modes: manual, semi-automatic, and automatic.
Describes the three modes of operation for the Speed PID: Speed, Frequency, and Unit Load Control.
Explains the manual valve demand feature, which disables other controllers for manual valve control.
Details the Cascade control function, typically used for inlet or exhaust pressure control.
Describes the procedure and consequences of an Emergency Shutdown condition.
Outlines the sequence performed when a STOP command is issued for a controlled turbine shutdown.
Explains how to test turbine electrical and mechanical overspeed protection logic by increasing speed.
Provides step-by-step instructions for initial configuration of the 505, including login and permissives.
Covers settings for Manual, Automatic, and Semiautomatic start modes, including rates and delays.
Lists and explains potential configuration errors and their meanings for troubleshooting.
Explains how alarms are detected, latched, and displayed, including Event IDs and descriptions.
Describes the display of latched trip events, their causes, and time stamps for shutdown analysis.
Lists Modbus addresses for Boolean writes/reads, analog reads/writes, and their definitions.
Provides a worksheet for configuring turbine start modes, rates, and temperature settings.
Offers a worksheet for configuring speed set points, governor limits, and critical speed bands.
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