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Manual 35086
ProTech-GII with Math Functions
Woodward
14
Chapter 1.
General Information
Purpose and Scope
The purpose of this manual is to provide the necessary background information for applying the ProTech-
GII. Topics covered include mechanical installation, electrical wiring, software programming, and
troubleshooting. While this manual is primarily targeted at OEM customers, OEMs themselves may find it
useful to copy some of the information from this manual into their application user manuals.
This manual does not contain instructions for the operation of the complete prime mover system. For
prime mover or plant operating instructions, contact the plant-equipment manufacturer.
This version of the manual applies to all ProTech-GII models with software 5418-7349. The software
version can be identified on the front panel display at power-up or on the “Monitor Module Information”
screen, available from the “Monitor Menu”. It can also be found on the “Details...” tab of the Programming
and Configuration Tool (PCT).
See the What’s New section at the end of this chapter for a listing of the changes in this software version.
How to Use This Manual
The following summarizes how to install a ProTech-GII into a new or existing system:
Unbox and inspect the hardware.
Install, mount, and wire the hardware following the system installation procedures and
recommendations in Chapter 2.
Configure the device using one of the following options:
o
Programming and Configuration Tool (Chapter 7)
o
Front Panel (Chapter 5)
Follow the safety and checkout procedures in Chapter 10.
Troubleshooting guidelines are provided in Chapter 11.
Description
The ProTech-GII is an overspeed safety device designed to safely shut down steam, gas, and hydro
turbines of all sizes upon sensing an overspeed or over-acceleration event. This device accurately
monitors turbine rotor speed and acceleration via active or passive MPUs (magnetic pickups) and issues
a shutdown command to the turbine’s trip valve(s) or corresponding trip system.
The ProTech-GII consists of three independent modules whose trip outputs, dependent upon model used,
are either independent or voted in a 2-out-of-3 configuration. An isolated bus architecture is used to share
all inputs and latch status information between the three modules. Optionally each ProTech-GII module
can be configured to use only its sensed “local” input signals or the voted result of all three modules’
signals in its event latch decision logic. Optionally module trip and alarm latch statuses can also be
configured to be shared with all other modules.
The ProTech-GII includes Overspeed and Over-acceleration functions as well as time stamped Alarm,
and Trip logs. Indication that a test was active at the time of the event is provided on all logs and first-out
indications are provided for Trip logs. The ProTech-GII also provides various pre-defined test routines
including an automated periodic test routine to assist users with verifying system operation.
There are several ways to interface with the ProTech-GII. The front panel allows the user to view current
values, and to perform configuration and test functions. All of the features and most of the information
Released