AirStage ABUA18RLAV Manuale di installazione - Pagina 12
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Stampa la pagina(1) External input terminals
• Indoor unit can be Start/Stop or Emergency stop, Forced stop by using indoor unit PCB
CN6 or CN17.
Wiring methods and specifi cations
• A twisted pair cable (22AWG) should be used. Maximum length of cable is
492 ft. (150 m).
* 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.
• Input selection
Use either one of these types of terminal according to the application. (Both types of termi-
nals cannot be used simultaneously.)
• Voltage terminal ([CN6])
When a power supply must be provided at the input device you want to connect, use the
voltage terminal ([CN6]).
Load
resistance
*a
Load
resistance
*a
connected unit
*1 Make the power supply DC12 to 24V. Select a power supply capacity with an ample
surplus for the connected load.
Do not impress a voltage exceeding 24V across pins 1-2, and 1-3.
*a The allowable current is DC5 to 10mA. (Recommended: DC5mA)
Provide a load resistance such that the current becomes DC10mA or less.
Select very low current use contacts (usable at DC12V, DC1mA or less).
*b The polarity is [+] for pin 1 and [-] for pin 2 and 3.
Connect correctly.
When connected to voltage terminals of multiple indoor units with a connected unit, be
sure to make a branch outside the indoor unit using a pull box, etc. as shown on below
example.
DC power sup-
ply 12 to 24 V
Load
resistance
Load
resistance
connected unit
• No voltage terminal ([CN17])
When a power supply is unnecessary at the input device you want to connect, use the no
voltage terminal ([CN17]).
*c
*c
Ch 2
Ch 1
connected unit
*c Select very low current use contacts (usable at DC12V, DC1mA or less).
*d The wiring is different from voltage terminals. Be suffi ciently careful when wiring.
En-11
DC power supply
*1
P.C.B
12 to 24 V
+
-
+
1
-
2
-
3
*b
P.C.B
CN6
P.C.B
CN6
P.C.B
CN6
P.C.B
1
2
3
GND
*d
When connected to no voltage terminals of multiple indoor units with a connected unit,
insulate each indoor unit with relay, etc. as shown on below example.
When connected to multiple indoor units directly, it will cause breakdown.
Input device 1
CN6
Operation behavior
• Input signal type
The input signal type can be selected.
It is switched by Dip-sw on the indoor unit PCB.
Dip-sw [Set 2-2]
OFF
ON
• When function setting is "Start/Stop" mode
In the case of "Edge" input
Connector
Ch1 of CN6 or CN17
In the case of "Pulse" input
CN6 or CN17
* The last command has priority.
* The indoor units within the same remote controller group operates in the same mode.
• When function setting is "Emergency stop" mode
In the case of "Edge" input
Connector
Ch1 of
CN6 or CN17
In the case of "Pulse" input
CN6 or CN17
* All indoor units of same refrigerant system stops when Emergency stop operates.
CN17
• When function setting is "Forced stop" mode
In the case of "Edge" input
Connector
Ch1 of
CN6 or CN17
K1
K4
K2
K5
K3
K6
Input device 2
(Device for DC Current)
Input signal type
Edge
Pulse
Input signal
Command
OFF → ON
Operation
ON → OFF
Stop
Connector
Input signal
Ch1
OFF → ON
Ch2
OFF → ON
Input signal
OFF → ON
ON → OFF
Connector
Input signal
Ch1
OFF → ON
Ch2
OFF → ON
Input signal
OFF → ON
ON → OFF
P.C.B
CN17
P.C.B
CN17
P.C.B
CN17
K1-K6: Relay
Edge
Pulse
The width of pulse
must be longer than
200msec.
Command
Operation
Stop
Command
Emergency stop
Normal
Command
Emergency stop
Normal
Command
Forced stop
Normal