Woodward ProTech TPS, Руководство по эксплуатации продукта

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Manual 26710V1 ProTechTPS Total Protection System
Woodward 107
Proof Testing (Functional Test)
The ProTechTPS 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 ProTechTPS, it is possible to perform the proof test
while the ProTechTPS 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 (de-
energized for a de-energize-to-trip configuration and energized in an energized to
trip configuration). It is possible to automate several steps of the proof test
procedure shown below using the programmability and test mode configurability
of the ProTechTPS, but the intent of the steps below must be met.
With the procedure below, the user can expect 99% test coverage of the
dangerous failures that are not tested by online diagnostics.
Functional Verification (Proof) Test Procedure (module level):
This procedure requires a digital multimeter for resistance and voltage
measurement. This will require password access to the front panel menus.
1. Cycle Power on the module and verify there are no internal faults on the
Alarm Latch page of the monitor menu.
2. Remove power from one power supply input (power supply input 1 or 2) at a
time and verify the correct fault is read on the Alarm Latch page of the
monitor menu.
3. Measure external 24 V EXT (terminals 80 – 81; 23 ±1 V).
4. Verify proper Discrete Input voltage (terminals 37 – 38; 23 ±1 V).
5. Measure SPEED PWR (terminals 69 – 71). Insure active probe mode is
selected in Speed Configuration Menu, make the measurement, and insure
probe type is in original configuration (23 ±1 V).
6. Test Speed input by using one of the internal speed test modes in the Test
Menu. Resistance measurement of each of the voter outputs is required.
Verify as follows:
a. With module not tripped, resistance measurement from 1A – 1B, or
2A – 2B must be less than 100

.
b. With module tripped, resistance measurement from 1A – 1B, or
2A – 2B must be greater than 1 M

.
7. Test any configurable inputs that are set to analog mode to make sure that
all inputs are operational. The analog signal must be varied from a steady
state value. Verify the proper signal by monitoring the respective input on
the Monitor Menu\Configurable Input page of the front panel.
8. Test any configurable inputs that are set to discrete mode to make sure that
all inputs are operational and not stuck in the ON or OFF state. Inputs must
be cycled from ON to OFF and OFF to ON. Verify the proper signal by
monitoring the respective input on the Monitor Menu\Configurable Input
page of the front panel.
9. Test Programmable Outputs if used as part of the safety system.
10. Cycle dedicated inputs and verify the proper signal by monitoring the
respective input on the Monitor Menu/Dedicated Discrete Input page of the
front panel.
11. If possible, compare external speed with measured speed reading on the
ProTechTPS display.
12. If used as part of the safety system, verify the analog output. Measure this
output by performing an automated overspeed trip test as described in
step 6.
13. Chassis isolation checks using resistance measurement. Measure from
terminals 39, 66, 67 to a point on the ProTechTPS chassis (the grounding
braid is a good place for this measurement): < 1

.
14. Perform a lamp test from front panel Test Menu.