Woodward ProAct P Series FL, Инструкция по установке, программированию и устранению неисправностей, Страница: 41 / 110

Manual 26659 ProAct P-Series FL Position Controller
Woodward 31
Run-time Diagnostics
Once power-up tests are completed, the unit starts controlling and provides
continuous indication of alarms and shutdowns. The Service Tool can be used to
monitor the alarm and shutdown conditions. Also, the discrete output can be
configured to reflect internal shutdowns, overall alarm or shutdown status, or
individual alarms and shutdowns.
Alarm and Shutdown Actions
An alarm is intended to indicate a condition that an operator should be aware of
during operation or troubleshooting, but does not require the engine to be shut
down. Alarms are indicated on the Service Tool, and can be configured to
annunciate on the discrete output.
When a shutdown diagnostic is detected, the ProAct will follow the configured
shutdown action (Go to Min, Go to Max, or Go Limp). Firmware 5418-6507
provides two additional options, Min then Limp and Max then Limp. These two
modes will position at min (or max) for 10 seconds prior to transitioning to a low-
power (limp) mode.
Shutdowns are indicated on the Service Tool and can be configured to
annunciate on the discrete output.
Alarm and Shutdown Indications on the Service Tool
Alarms and shutdowns are indicated on separate tabbed pages in the main
Service Tool screen. The alarm and shutdown symbols on the status bar indicate
the alarm and shutdown state of the actuator. For example, if any alarms on the
Alarm page are active, the alarm symbol on the status bar is active.
Logged Alarms and Shutdowns
The occurrence of an alarm or shutdown is saved in non-volatile memory. If
power to the ProAct is turned off, then turned on, the logged alarm and shutdown
indications can still be seen on the Service Tool.
Resetting Alarms and Shutdowns
Alarm and shutdown faults can be globally set as either latching or non-latching.
When set to latching, either a reset command or a power-cycle is required to
clear the fault and allow the unit to start again. If non-latching, the fault is
automatically cleared without any reset once the fault condition returns to normal.
Alarms and shutdowns can be reset using the Service Tool, or by toggling the
Run Enable discrete input (if connected) Off for greater than 1 second, then back
to Run.
If a shutdown diagnostic occurs when the actuator is in a state other than the
Shutdown state or Powered Down state, and then is immediately reset, the
actuator remains shut down until the Shutdown state is reached.
It is recommended that all faults be configured as shutdowns to
ensure maximum fault protection.