Airwell /yaz218, Руководство по обслуживанию

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TROUBLESHOOTING
12-6
SM YAZ218 1-A.2 GB
12.3.3 DMSMP diagnostics
The DMSMP system has 4 IDU LEDs, 1 ODU LED, and 1 Power LED.
Each communication channel is built up from receiving and transmitting channels.
The outdoor controller is the master of communication (always initiated communication) while the
DMSMP and indoor are slave (responds only when it receives).
R
4,
T
4
IDU
4
ODU:
T
O,
R
O
IDU Channel
Selector
MCU
R
4
status
R
3
status
R
1
status
R
2
status
R
3,
T
3
IDU
3
R
2,
T
2
IDU
2
R
1,
T
1
IDU
1
R
O
status
DMSMP
LED
4
LED
3
LED
O
LED
1
LED
2
T
4
, R
4
IDU
4
T
3
, R
3
IDU
3
T
2
, R
2
IDU
2
T
1
, R
1
IDU
1
ODU:
R
O,
T
O
Master
Slave
Slave
Slave
Channel LED
R
i
has communication The relevant LED
i
will be ON.
R
i
has no communication The relevant LED
i
will be Off.
LED on DMSMP
Damage ODU IDU
1 2 3 4 O
How to check?
T
o
(ODU) No Com All no com Off Off Off Off Off
Voltage To(ODU) no
change
R
o
(DMSMP) No Com All no com Off Off Off Off Off
Voltage To(ODU)
changes
Voltage Ro(DMSMP)
no change
T
o
(DMSMP) No com All ok On On On On On
Voltage Ro(DMSMP)
changes
Voltage To(DMSMP)
no change
Ro(ODU) No com All ok On On On On On
Voltage To (DMSMP)
changes.
Voltage To (ODU) no
changes.
T
4
(DMSMP) Ok Indoor 4 On On On Off On
R
4
(IDU) Ok Indoor 4 On On On Off On
T4(IDU) Ok All ok On On On Off On
R4(DMMSP) Ok All ok On On On Off On
Exchange with other
IDU to know the
problem is in the IDU
or the DMSMP.