ASTEC Peterson 6710D, Руководство по безопасности оператора, Страница: 104 / 167

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Display Failure Modes
The following tables list the built-in failure modes from
the Peterson display modules.
Table 11: Failure Modes for CAN Interface
Failure Mode Effect
1 CAN-H to -BAT No CAN communication.
All output turned off.
2 CAN-L to -BAT No CAN communication.
All output turned off.
3 CAN-H to +BAT No CAN communication.
All output turned off.
4 CAN-L to +BAT No CAN communication.
All output turned off.
5 CAN-L open circuit No CAN communication.
All output turned off.
6 CAN-H open circuit No CAN communication.
All output turned off.
7 CAN-L to CAN-H No CAN communication.
All output turned off.
8 CAN-termination
failure, termination
ON No effect
9 CAN-termination
failure, termination
OFF Dependent on CAN size
and number of CAN nodes
Table 12: Failure Modes for DIN
Failure Mode Effect
1 DIN Open No effect on module,
not detected
2 DIN Short circuit to
+BAT No effect on module,
not detected
3 DIN Short circuit to -
BAT No effect on module,
not detected
Table 13: Failure Modes for VREF
Failure Mode Effect
1 +VREF Open VIN out of range, will
create a VIN error =>
VIN=Predefined error
value
2 -VREF Open VIN out of range, will
create a VIN error =>
VIN=Predefined error
value
3 +VREF Short-circuit
to -VREF VREF error => VIN out of
range, will create a VIN
error => VIN=Predefined
error value
4 +VREF Short circuit
to +BAT VREF error => VIN out of
range, will create a VIN
error => VIN=Predefined
error value
5 +VREF Short circuit
to -BAT VREF error => VIN out of
range, will create a VIN
error => VIN=Predefined
error value
6 -VREF Short circuit to
+BAT External fuse (if <7.5A) on
+BAT blows
7 -VREF Short circuit to
-BAT Not detected
Table 14: Failure Modes for VIN
Failure Mode Effect
1 VIN Open*
*Most likely an
unplugged or failed
transducer
VIN out of range, will
create a VIN error =>
VIN=Predfined error
value
2 VIN Short circuit to
+BAT VIN out of range, will
create a VIN error =>
VIN=Predfined error
value
3 VIN Short circuit to -
BAT VIN out of range, will
create a VIN error =>
VIN=Predfined error
value