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Manual 35086
ProTech-GII with Math Functions
Woodward
165
Restrictions
The user must complete a full functional check of the ProTech-GII after initial installation, and after any
modification of the programming or configuration of the device. This functional check should include as
much of the safety system as possible, such as sensors, transmitters, actuators and trip blocks. The
ProTech-GII has programming capability to facilitate the automatic checkout and periodic maintenance of
the safety system. For help on programming, see the chapters on functionality and configuration.
The ProTech-GII must be used within the published specification in this manual.
Competence of Personnel
All persons involved in the initial design or modification of the programmable software, installation and
maintenance must have appropriate training. Training and guidance materials include this manual, the
ProTech-GII Programming and Configuration Tool, and training programs available at Woodward. See
Chapter 12 (Service Options) for more information.
Operation and Maintenance Practice
A periodic proof (functional) test of the ProTech-GII is required to verify that no dangerous faults not
detected by internal run-time diagnostics remain undetected. More information is in the Proof Test Section
of this chapter. The frequency of the proof test is determined by the overall safety system design, of which
the ProTech-GII is part of the safety system. The safety numbers are given in the following sections to help
the system integrator determine the appropriate test interval. This will require password access to the front
panel menus.
Installation and Site Acceptance Testing
Installation and use of the ProTech-GII must conform to the guidelines and restrictions included in this
manual. No other information is needed for installation, programming, and maintenance. This will require
password access to the front panel menus.
Functional Testing after Initial Installation
A functional test of the ProTech-GII is required prior to use as a safety system. This should be done as
part of the overall safety system installation check and should include all I/O interfaces to and from the
ProTech-GII that are part of the safety system. For guidance on the functional test, see the proof test
procedure below. This will require password access to the front panel menus.
Functional Testing after Changes
A functional test of the ProTech-GII is required after making any changes that affect the safety system.
Although there are functions in the ProTech-GII that are not directly safety related, it is recommended that a
functional test is performed after any change. This will require password access to the front panel menus.
Proof Testing (Functional Test)
The ProTech-GII must be periodically proof tested to ensure there are no dangerous faults present that
are not detected by on-line diagnostics. Because of the 2oo3 configuration of the ProTech-GII, it is
possible to perform the proof test while the ProTech-GII is on-line. Many built-in test modes are included.
The test procedure will set the trip outputs on the module under test into a trip state. It is possible to
automate several steps of the proof test procedure shown below using the programmability and test mode
configurability of the ProTech-GII, but the intent of the steps below must be met.
With the procedure below, the user can expect over 99% test coverage of the dangerous failures that are
not tested by online diagnostics.
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Содержание ProTech-GII
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