Dynalco AF-900PC Air/Fuel Ratio Controller User Manual

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NOTE: The following descriptions apply to the Trip 1 and Trip 2 Screens

TRIP SCREEN 1
A screen (Fig. 12) used to setup the trip action for pre-catalyst system faults. The
screen shows all faults set to Alarm and Data Log.

Trip Mode: Selects the action, from the drop down menu, which will be taken by
the controller when the fault occurs. To make best use of the system diagnostics, it
is recommended that all trips be programmed to Alarm or Shutdown so the
operator will be alerted if a fault occurs. Faults that are critical to the engines
health, such as high catalyst temperature, should be configured to Shutdown so
the shutdown relay contacts may be used to trip the panel annunciator.
Disabled (DIS): The trip is disabled and no action will be taken.
Alarm (ALM): Trips the Alarm Relay, flashes the Alarm LED, and shows the fault
on the LCD display.

Shutdown (SD): Trips the shutdown relay, flashes the shutdown LED, and shows
the fault on the LCD display.
Auxiliary (AUX): Trips the auxiliary alarm when fault occurs.

Trip Screen 1

Figure 12