A7™ Service Manual 046-006272-00 5 - 13
Repair and Troubleshooting Technical Alarms Check
0x00080000
Sensirion flow
sensor in O2 limb
is faulty, namely,
12C
communication
between FPGA
and Sensirion flow
sensor in O2 limb
is not successful
for continuous 1s.
1. Turn off the machine. Check if the flow sensor cable connection is normal.
Restart the machine after making sure that cable connection is normal.
2. If the problem still persists, consider to replace 0632 flowmeter O2 flow
sensor adapter board in O2 limb.
3. If this failure is still triggered after replacing the 0632 flowmeter O2 flow
sensor adapter board, consider to replace the 0632 EFCS VCM board. Return
the faulty 0632 flowmeter O2 flow sensor adapter board or 0632 EFCS VCM
board to R&D.
0x00100000
Sensirion flow
sensor in AIR limb
is faulty, namely,
12C
communication
between FPGA
and Sensirion flow
sensor in AIR limb
is not successful
for continuous 1s.
1. Turn off the machine. Check if the flow sensor cable connection is normal.
Restart the machine after making sure that cable connection is normal.
2. If the problem still persists, consider to replace 0632 flowmeter AIR flow
sensor adapter board in AIR limb.
3. If this failure is still triggered after replacing the 0632 flowmeter AIR flow
sensor adapter board, consider to replace the 0632 EFCS VCM board. Return
the faulty 0632 flowmeter AIR flow sensor adapter board or 0632 EFCS VCM
board to R&D.
0x00200000
Sensirion flow
sensor in N2O
limb is faulty,
namely, 12C
communication
between FPGA
and Sensirion flow
sensor in N2O
limb is not
successful for
continuous 1s.
1. Turn off the machine. Check if the flow sensor cable connection is normal.
Restart the machine after making sure that cable connection is normal.
2. If the problem still persists, consider to replace 0632 flowmeter N2O flow
sensor adapter board in N2O limb.
3. If this failure is still triggered after replacing the 0632 flowmeter N2O flow
sensor adapter board, consider to replace the 0632 EFCS VCM board. Return
the faulty 0632 flowmeter N2O flow sensor adapter board or 0632 EFCS VCM
board to R&D..
0x00400000
O2 Branch Flow
Not Achieved
exceeds 0.4LPM
1. Select [Setup]?[Service]?[Review Logs]?[Alarms]. Observe if there is "FPGA
FAIL" item available (ID:1000 0000) triggering "Electronic Flow Control Error"
alarm.
2. If this item is available, it indicates that there is problem with the
communication between FPGA and CPU. Or FPGA stops running, restart the
machine. If the problem still persists after restarting the machine, replace 0632
EFCS VCM board PCBA.
3. If there is no "FPGA FAIL" item available, the part of flow sensor in O2 limb
may have problem. In this case, turn off the machine and check flow sensor
cable connection. If cable connection is in good condition and the problem
still persists after restarting the machine, it can be considered that the flow
sensor is fault. Replace the flow sensor.
4. Return the faulty board or flow sensor to R&D.
0x00800000
Balance Gas AIR
Branch Flow Not
Achieved exceeds
0.4LPM
1. Select [Setup]?[Service]?[Review Logs]?[Alarms]. Observe if there is "FPGA
FAIL" item available (ID:1000 0000) triggering "Electronic Flow Control Error"
alarm.
2. If this item is available, it indicates that there is problem with the
communication between FPGA and CPU. Or FPGA stops running, restart the
machine. If the problem still persists after restarting the machine, replace 0632
EFCS VCM board PCBA.
3. If there is no "FPGA FAIL" item available, the part of flow sensor in AIR limb
may have problem. In this case, turn off the machine and check flow sensor
cable connection. If cable connection is in good condition and the problem
still persists after restarting the machine, it can be considered that the flow
sensor is fault. Replace the flow sensor.
4. Return the faulty board or flow sensor to R&D.
ID No Cause Solution
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