Optional Parts Wiring; External Input And External Output (Optional Parts) - Fujitsu AS A004HCAH Series Installation Manual

5.5. Optional parts wiring

In this setting, you need to remove the front panel. Refer to "8. FRONT PANEL REMOVAL
AND INSTALLATION".
5.5.1. Layout of the indoor unit PCB
Do not operate any switches other than prescribed, as it can cause the unit to operate
improperly or malfunction.
Use an insulated screwdriver to set the DIP switches.
Power indicator lamp (green)
DIP switch
(SET 2)
ON OFF
SW4
SW3
SW2
SW1
CN65
Name
Power indicator Indicates the state of the power supply. Refer to "5.5.2. Power indica-
lamp (green) tor lamp status" following.
CN46 External input (Edge input only)
DIP switch When using pulse input with External input and output PCB or Expan-
SET 2 (SW2) sion kit, this switch also needs to be changed.
• Off: Edge input (factory setting)
• On: Pulse input
CN47 External output.
CN65 For two of the following. The same options cannot be used together.
CN75 • External input and output PCB (*1)
• MODBUS® convertor
• Wireless LAN adapter (Can only be connected to CN75.)
• Gas sensor kit (For R32 system only.)(*2)
• Expansion kit (For R32 system only.)(*1)
Adapter cable For Remote sensor kit
connected to Disconnect the existing internal sensor cable and connect the optional
CN5 cable.
CN820 For External power supply unit (For R410A system only.)
*1: External input and output PCB and Expansion kit cannot be used together.
*2: Use the optional UART cable (UTY-XWZXZL) to connect this device.
5.5.2. Power indicator lamp status
Power indicator lamp (Green)
Lit
Fast blinking (every 0.1 sec-
ond)
Blinking (repeat 3 seconds ON
and 1 second OFF)
5.5.3. Connection methods
Wire modification for External
input/output wire
(1) Remove insulation from wire at-
tached to wire kit connector.
(2) Remove insulation from field
supplied cable. Use crimp type
insulated butt connector to join field
cable and wire kit wire.
(3) Connect the wire with connecting
wire with solder.
Wiring arrangement
In following figure, all the possible connectors are connected for description.
In actual installation, you cannot connect all the connectors at once.
(1) Hang the wire on the hooks.
(2) After attaching the cover, push the wire into the gap.
En-9
CAUTION
CN5
Controller PCB
Adapter cable
connected to CN5
CN47 CN820
CN75 CN46
Application
Status contents
Lit when the power is turned on.
There is a fault with the communication board or the
main board.
The indoor unit is turned off and power is supplied
from the External power supply unit (optional) to the
indoor unit PCB.
IMPORTANT:
Be sure to insulate the connection between the
wires.
Locally
Wire kit connector
purchased (optional parts)
Solder and insulate the connected parts.
Controller PCB
Hooks
White,
3-pin
External power supply cable
Blue

5.6. External input and external output (Optional parts)

White,
2-pin
5.6.1. External input
• Indoor unit can be Operation/Stop, Emergency stop or Forced stop by using indoor unit
PCB CN46.
• "Operation/Stop" mode, "Emergency stop" mode or "Forced stop" mode can be selected
with function setting of indoor unit.
• Indoor unit can be Forced thermostat off by using indoor unit PCB CN46.
• A twisted pair cable (22 AWG) should be used. Maximum length of cable is 150 m (492 ft).
• Use an external input and output cable with appropriate external dimension, depending
on the number of cables to be installed.
• The wire connection should be separate from the power cable line.
● Dry contact terminal (CN46)
When a power supply is unnecessary at the input device you want to connect, use the Dry
contact terminal.
(*1)
Connected device
*1: The switch can be used on the following condition: DC 12 V to 24 V, 1 mA to 15 mA.
Operation behavior
● Input signal type
Mode
Operation/
Stop
Emergency
stop
Forced stop
Connecting cables
On
Edge
Off
Function setting Input signal
OFF → ON
46-00
ON → OFF
ON → OFF
46-10
(logic inverse)
OFF → ON
• The last command has priority.
• The indoor units within the same remote controller group operates in
the same mode.
OFF → ON
46-01
ON → OFF
ON → OFF
46-11
(logic inverse)
OFF → ON
All indoor units of same refrigerant system stops when Emergency
stop operates.
OFF → ON
46-02
ON → OFF
ON → OFF
46-12
(logic inverse)
OFF → ON
• When the forced stop is triggered, indoor unit stops and Operation/
Stop operation by a remote controller is restricted.
• When forced stop function is used with forming a remote controller
group, connect the same equipment to each indoor unit within the
group.
Cover
P.C.B.
CN46
Command
Operation
Stop
Operation
Stop
Emergency stop
Normal
Emergency stop
Normal
Forced stop
Normal
Forced stop
Normal