RG55 Operation • Service • Maintenance
34
Operation
00-02-0839 - 9 - 2012-09-21
Faults, Warnings and Indicators
The PV25 provides two means for displaying faults and warnings: visual
LEDs on the casing (Amber at the upper left, and Red at the upper right),
and Active Warning screens listing the SPN, FMI, and OC. In addition, Tier
4/Euro State IIIB symbols display to indicate Tier 4 status if Tier 4 is set to
ON.
Visual Indication
Amber LED (Warning)
Red LED (Derate / Shutdown)
Indicators for Active Fault Codes
Tier 4 Indicators display at the left of the screen. The current gauge
readings continue to display on the right.
Warning or Shutdown Screens
Active Shutdown or Warning
screens display when a fault
occurs. The screen lists the
SPN, FMI, and Occurrence
Count. If there is more than one
fault, PV25 automatically scrolls
through all faults
.
DM13 – Start/Stop Broadcast
This message is used to stop or start broadcast messages and may not
completely prevent all messages. Critical messages indicating unsafe or
damaging operating conditions will still be seen and require a response. The
DM13 can only be initiated when the engine is at zero RPM. DM13 is used
when diagnostic procedures are performed.
PV25 responds to an incoming DM13 message by suspending outgoing
data transmissions. To maintain a suspended transmission event, the hold
signal must be sent once every 5 seconds. If the hold signal disappears for
more than 6 seconds, the system reverts to a normal state.
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