Toshiba MMY-MAP0804FT7(Z), Руководство по обслуживанию, Страница: 172 / 333

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IPDU: Intelligent Power Drive Unit (Inverter P.C. board)
: Lighting, : Flashing, : Goes off
ALT.: Flashing is alternately when there are two flashing LED
SIM: Simultaneous flashing when there are two flashing LED
* Indicator light display of the receiving unit may be different from
those in the following table. (Wall type 3 series, etc.)
Check code Display of receiving unit
Typical fault site Description of error
Outdoor 7-segment display TCC-LINK
central control
or main remote
controller
display
Indicator light block
Sub-code Flash
Ready Timer Operation
Indoor-outdoor communication
circuit error
E06
Dropping out of indoor unit
E06
Indoor unit initially communicating normally fails to
return signal (reduction in number of indoor units
connected). Number of indoor units
from which signal is
received normally
(E04) — E07
Signal cannot be transmitted to indoor units
(
→
indoor units left without communication from
outdoor unit).
Too many indoor units
connected/overloading
E16 E16
Combined capacity of indoor units is too large
(more than 135% of combined capacity of outdoor
units). 00: Overloading
01: Number of units
connected
E26 E26 Dropping out of outdoor unit
Follower outdoor unit initially communicating normally
fails to do so (reduction in number of follower outdoor
units connected).
Outdoor header unit detects fault relating to
follower outdoor unit (detail displayed on follower
outdoor unit).
Address of outdoor unit
from which signal is not
received normally
Error in number of outdoor
header units There is no or more than one outdoor header unit
in one refrigerant line.
E19 E19
00: No header unit
02: Two or more header
units
01: TE1
02: TE2 Outdoor heat exchanger temperature sensors
(TE1, TE2) have been open/short-circuited.
F06 ALT F06
Outdoor heat exchanger
temperature sensor (TE1, TE2)
error
E28 Outdoor follower unit error Detected outdoor unit No. E28
There is no communication between IPDUs (P.C.
boards) in inverter box.
Outdoor I/F board error
When power supply was turned on within 30 seconds
(before electric discharge of capacitor) after power
supply was reset
E31
IPDU communication error
Sub MCU communication error
80: Communication error
between MCU and
Sub MCU
E31
E20 E20
01: Connection of outdoor
unit from other
refrigerant line
02: Connection of indoor
unit from other
refrigerant line
Connection to other
refrigerant line found
during automatic address
setting
Indoor unit from other refrigerant line is detected
while indoor automatic address setting is in progress.
More than one indoor unit is assigned same
address (also detected at indoor unit end).
(E08) E08
Duplicated indoor address Duplicated indoor address
Indoor unit fails to communicate while automatic
address setting for indoor units is in progress. Indoor unit not found during
automatic address setting
E15 — E15
Outdoor discharge temperature sensor (TD1) has
been open/short-circuited. Outdoor discharge
temperature sensor (TD1) error
F04 ALT — F04
Outdoor discharge temperature sensor (TD2) has
been open/short-circuited. Outdoor discharge
temperature sensor (TD2) error
F05 ALT — F05
Outdoor liquid temperature sensor (TL) has been
open/short-circuited. Outdoor liquid temperature
sensor (TL) error
F07 ALT — F07
Outdoor outside air temperature sensor (TO) has
been open/short-circuited. Outdoor outside air temperature
sensor (TO) error
F08 ALT — F08
Wiring error in outdoor temperature sensors (TE1, TL)
has been detected. Outdoor temperature sensor
(TE1, TL) wiring error
F15 ALT — F15
Wiring error in outdoor pressure sensors (Pd, Ps)
has been detected. Outdoor pressure sensor (Pd, Ps)
wiring error
F16 ALT — F16
Outdoor suction temperature sensor (TS1, TS2) has
been open/short-circuited. Outdoor suction temperature
sensor (TS1, TS2) error 01: TS1
02: TS2
F12 ALT F12
Outdoor-outdoor communication
transmission error
E23
Signal cannot be transmitted to other outdoor units.
— E23
Duplicated follower outdoor
address There is duplication in outdoor addresses set
manually.
E25 — E25
• Indoor automatic address setting is started while
automatic address setting for equipment in other
refrigerant line is in progress.
• Outdoor automatic address setting is started while
automatic address setting for indoor units is in
progress.
E12 E12
Automatic address starting
error
01: Indoor-outdoor
communication
02: Outdoor-outdoor
communication
Outdoor discharge temperature
sensor (TD3) error
F22
Outdoor discharge temperature sensor (TD3) has
been open/short-circuited.
ALT — F22
1
O
O
O
O
O
2
O
O
O
O
3
O
O
O
O
A3-IPDU Fan
IPDU
01
02
03
04
05
06
07
08
09
O
O
1
O
O
O
2
O
O
O
O
3
O
O
O
O
A3-IPDU Fan
IPDU
01
02
03
04
05
06
Circle (O):
Faulty IPDU
O
O
O
O
O
O
Sub
MCU
O
List of Check Codes (Outdoor Unit)
(Errors detected by SHRM-i outdoor interface - typical
examples)
If “HELLO” is displayed on the outdoor 7-segment for
1 minute or more, turn off the power supply once and
then turn on the power supply again after passage of
30 seconds or more. When the same symptom
appears, it is considered there is a possibility of I/F
board error.
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