External Input And External Output - Fujitsu AirStage AJYA72GALH Installation Manual

6. 7.

External input and external output

6. 7. 1. Terminal position
Input 5 Input 4 Input 3
CN134 CN133
CN135
(WHITE)
(ORANGE) (RED)
Outdoor unit PC board
CAUTION
Do not bundle the cable for base heater with other cables.
(Example)
In case of Outdoor unit
(1) Insert the connector to CN134 (Red) and CN135 (Orange) of control PC board.
(2) Fix it to the wire with the attached cable tie.
CN135
(Orange)
CN115
(Black)
Clamp
Wire
▪ Do not clamp the base heater cable.
6. 7. 2. External input terminal
Service parts: EXTERNAL INPUT WIRE A (9368777005)
• Setting to low noise mode, outdoor unit operation peak control setting, emergency/
batch stop and electricity meter pulse are possible from the outside.
• Except for wattmeter pulse reception (CN135) among external input terminals, only
the Master unit is effective.
Wiring method and specifi cations
2
* A twisted pair cable (0.33 mm (22AWG)) should be used. Maximum length of
cable is 150 m.
* Use an external input and output cable with appropriate external dimension, de-
pending on the number of cables to be installed
* For each input, pin No.1 is of positive polarity and pin No.2 is of ground level.
Input 1 Output 1
Output 2
CN131 CN136
(YELLOW) (BLACK)
Clamp
CN134
(Red)
Cable tie
(Accessories)
Input 1
CN131
(Yellow)
P.C.B
connected unit connected unit connected unit
connected unit
Operation behavior
Each input terminal works as follows.
Connector Input signal
OFF Normal operation
Input 1
CN131 (Yellow)
ON Low noise mode operation
OFF Normal operation
Input 3
Outdoor unit operation peak
CN133 (White)
ON
control
OFF Normal operation
Input 4
Batch stop or Emergency stop
CN134 (Red)
ON
operation *1, *2
No information from electricity
No pulse
meter
Input 5
CN135 (Orange) *3
Power usage information from
Pulse
electricity meter
Slave unit can connect only input5 (CN135).
The operations of each input terminal and the selection of function are set with the
push button on the PC board of outdoor unit. About the setting, please refer to 7.4.
Push button setting.
Note :
*1: Batch stop or Emergency stop pattern can be selected by outdoor unit PC
board push button.
*2: The emergency stop function mounted in the V-II does not guarantee the
regulations of each country. For this reason, suffi cient checking is necessary
regarding use.
Especially, since the fact that the equipment may not be emergency-stopped
in the case of breaking of the wiring to the external input terminals and com-
munication line, communication error due to noise, VRF external input circuit
trouble, etc. must be considered, the provision of double measures that add
direct interruption of the power supply by switch, etc. is recommended as a
precaution.
*3: Pulse input to CN135 must be width 50ms or more, and must be interval 50ms
or more.
6. 7. 3. External output terminal
Service parts : EXTERNAL INPUT WIRE A (9368777005)
• You can detect the operation condition of outdoor unit and the abnormal situation
of both indoor and outdoor unit.
• The external output terminal is only valid for Master Unit.
Wiring method and specifi cations
Error status (Master unit only)
This output indicates the outdoor unit and connected indoor unit's "Normal" or "Error"
status.
Operation status (Master unit only)
This output indicates the outdoor unit's "Operation" status.
Connector Output voltage
0 V
CN136 (Black)
DC 12 to 24 V
0 V
CN137 (Blue)
DC 12 to 24 V
Input 4
Input 5
Input 3
CN133 CN135
CN134
(White) (Orange)
(Red)
Outdoor unit
Status
Master Slave
O
O
O
O
Status
Normal
Error
Stop
Operation
En-16
O