Manual 35086
ProTech-GII with Math Functions
Woodward
68
Auto Simulated Speed Test
This test allows users to easily test the module’s overspeed trip function by having the module’s internal
frequency generator automatically ramp up to and above the module’s overspeed set point. This can be
initiated from the front panel or via the Modbus interface. The auto test starts at 100 RPM below setpoint.
Then the frequency generator ramps up at approximately 10 RPM/s until the overspeed trip occurs.
When the overspeed trip occurs, it is logged in the modules’ trip log and noted as a test. If a trip does not
occur within 12 seconds from the beginning of the test, the test is aborted and a test failed alarm is
generated and logged in the module’s alarm log.
To initiate the Auto Simulated Speed Test via a Modbus command, refer to the Modbus Communication
Chapter. The test can be aborted either from the front panel or via the Modbus interface.
Auto Sequence Test
This test is similar to the Auto Simulated Speed Test but allows the ProTech-GII to perform the test
automatically on each module on a regular basis. The test can be initiated from the front panel or by a
configurable timer. If the configurable timer is used, the test Interval can be configured from 1 to 999
days. When initiated from the front panel, the test interval will be reset.
This test will automatically be applied to all three modules. First, the test will be performed on module A,
and when the overspeed trip occurs, it is logged in the module's trip log and noted as a test. Then,
module A is automatically reset and module B is tested. When the module B test is completed, module C
is tested. In this way, periodic testing can be performed automatically on a regular basis with no operator
intervention.
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.
Configuration and initiation of the Auto Sequence Test can only be performed on module A.
Lamp Test
Each module provides a lamp test which cycles through all the color options of each front panel LED. When
initiated, the test turns all LEDs off, then turns on color option 1 (Tripped=red, Unit Health=red, Alarm=amber),
then color option 2 (Tripped=red, Unit Health=green, Alarm=amber), and concludes the test by turning the LEDs
off. After the test is completed the LEDs return to displaying the current status.
Note
: only the Unit Health LED has a second color option. The Lamp Test can be applied to any module
at any time without a password.
Alarm and Trip Latches
The ProTech-GII provides pre-defined, self-configured alarm and trip latches based on the configuration
of the device’s functions.
Reset Function
The Reset Function is associated with both the alarm and trip latches. A Reset can be generated by
pressing the reset key on the front panel, from the pre-defined reset contact input, or via the Modbus
interface.
The reset function can also be configured to share inputs from other modules by enabling the reset input
sharing which provides a logical-OR on the selected inputs. This is useful if only one or two discrete
contacts are available from a specific circuit or application.
The shared reset function is automatically internally connected to numerous functions including the alarm
latch, trip latch, and redundancy managers.
Released