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x
007
... 00 07 ...
100
x
008
... 00 08 ...
100
x
009
... 00 09 ...
x
010
... 00 0A ...
x
011
... 00 0B ...
100
ALA: DIAG_24_VOLTAGE_TEST_ERROR
ALA: DIAG_DISABLE_VALVES_ERROR
ALA: DIAG_CAN_BUFFER_FULL
ALA: DIAG_CAN_DATA_OVERRUN
ALA: DIAG_EMERGENCY_TEST_MEASURE
Fault: Voltage monitoring error +24V (Hardware failure).
Description: The startup hardware voltage test or the continuous battery monitoring
failed because the +24 voltage is not within the range for battery voltage, i.e.
[abs(meas_24 - batt_voltage) > 0.5 V]. Technical alarm is generated.
What to do:
1.
Replace PC 1672 Control Panel
2.
Replace PC 1675 Power supply
3.
Check the Control panel cable.
Fault: Disable valve error (Hardware failure).
Description: The check if it is possible to disable valves failed during the startup
hardware voltage test. Technical alarm is generated.
If the valves already are disabled (+24V_VALVE_L is high) before the test, or if the
signal +24V_VALVE_L is not going high when the signal 15V_ERR_L is set low, then
this diagnostic is written.
What to do:
1.
Replace PC 1750 Transducer (or INSP/EXP pressure transducer)
2.
Replace PC 1675 Power Supply.
3.
Replace PC 1672 Control Panel.
Fault: Communication bus (CAN) is not working.
Description: The circular CAN receive buffer is full. At least one CAN-message is
missed. Circular buffer holds 10 CAN-messages.
What to do:
1.
If this log is repeted several times; check CAN communicating units, i.e.
microprocessor controlled PC boards, multigas analyzer, KION Monitor and
DuoView. Also check PC board- and cable connectors.
2.
Report to EM-HSC.
Fault: Communication bus (CAN) is not working .
Description: Data overrun has occurred. At least one CAN-message is missed.
What to do:
1.
If this log is repeted several times; check CAN communicating units, i.e.
microprocessor controlled PC boards, multigas analyzer, KION Monitor and
DuoView. Also check PC board- and cable connectors.
2.
Report to EM-HSC.
Fault: Hardware failure.
Description: ALA orders MEA to pull emergency line. The startup hardware
emergency line test failed. Technical alarm is generated.
What to do:
1.
Check that the MEA-PROM is correctly mounted
2.
Replace PC 1737 Measuring.
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