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Manual 35086
ProTech-GII with Math Functions
Woodward
121
Once initiated, the Module A speed changes to the internal function generated speed, starting at 100
RPM below the overspeed trip threshold and ramping up until an overspeed trip event occurs on Module
A. The Module A speed input is re-activated and the trip output is cleared after three seconds. After
another 10 seconds, the same process is initiated on Module B. After Module B trips, the trip output is
cleared and the 10-second inter-module test delay elapses, the same process is initiated on Module C.
After Module C trips and subsequently resets, the sequence test is complete.
Once initiated, the “Result of Last Test” shows “TEST RUNNING”. The status changes to “TEST
PASSED” if the entire sequence was successful, otherwise the status changes to “TEST NOT
COMPLETED” or “TEST FAILED”. All front panel screens display the same status.
While a module is in a test active state, a local alarm is indicated and the local “Module Test Status” is
displayed as “Running Test”. If an unrelated trip or alarm occurs on any module before the sequence test
completes, the sequence test aborts.
The operator can disable the Auto-Sequence Test from the front panel of the module. When the Auto-
Sequence Test is disabled or if any module is in trip, alarm, or test, the “Time Remaining Until Next Test”
will be prevented from counting below one hour. If the timer is already below one hour, it will be increased
to 1 hour. When the Auto-Sequence Test is enabled again and no modules are in trip, alarm, or test, this
limit on the timer will no longer be in effect.
Auto Sequence Test Procedure
To configure this test, refer to the Configure Auto Sequence Test section of the Configuration Using the
Front Panel chapter. To run this test, perform the following steps.
1. Verify no modules are in a Tripped or Alarmed state. (The Test Mode Permissive setting does not
apply to this test.)
2. On the “Auto-Sequence Test” screen of Module A, press the “Start Test” soft key.
NOTE: This test routine can also be initiated automatically on a configured period if the Periodic
Test Timer is configured for use.
3. The “Password Entry” screen will appear. Enter the Test Level Password.
4. On the “Auto-Sequence Test” screen of Module A, press the “Start Test” soft key to initiate this
test or press the “Cancel” soft key to exit the screen.
5. Module A will then perform an Auto Simulated Speed Test. Module A will trip on the simulated
overspeed test, then after three seconds reset back to a non-tripped state. A 10-second inter-
module test delay is applied before continuing.
6. If all test permissives are met (no module in a tripped or alarmed state), then Module B will
perform an Auto Simulated Speed Test.
7. Module B will trip on the simulated overspeed test, then after three seconds reset back to a non-
tripped state. A 10-second inter-module test delay is applied before continuing.
8. If all test permissives are met (no module in a tripped or alarmed state), then Module C will
perform an Auto Simulated Speed Test.
9. Module C will be reset back to a non-tripped state.
10. Module C will trip on the simulated overspeed test, then after three seconds reset back to a non-
tripped state.
11. If, at any point, the permissives are not met (any module in a tripped or alarmed state), the test will abort
and the “Result of Last Test” and “Module Test Status” will be updated.
12. If this test was initiated by the “Periodic Test Timer” function, the “Time Remaining Until Next
Test” time will be reset and start counting down once again.
Alternatively an operator can configure the Periodic Test Timer function from the front panel of Module A.
When this function is disabled, or if any module is in trip, alarm, or test, the “Time Remaining Until Next
Test” will be prevented from counting below 1 hour. If the timer is already below one hour it will be
increased to one hour. When the Periodic Test Timer function is re-enabled and no modules are tripped,
in alarm, or in a test mode, the Periodic Test Timer function will continue to operate as normal.
See “General Testing Notes” below for information on related messages and their meaning.
Released