External Input And Output - Indoor Unit (Compact Wall Mounted) - Fujitsu Airstage V series Service Manual

Multi air conditioning system for buildings
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2-4-2 Indoor Unit (COMPACT WALL MOUNTED)
CONTROL INPUT (Operation / Stop)
Indoor unit can be operated or stopped by using the connector CN9 (RED) ON indoor unit PCB.
Open circuit voltage :
Short circuit current :
Short circuit detection resistance (R
Open circuit detection resistance (R
A twisted pair cable(22AWG) shoud be used. Maximum length of cable is 25m.
Input select
Dip SW1-4
OFF
ON
In the case of "Edge" input
CONNECTOR
INPUT SIGNAL
OFF
CN9 (RED)
ON
Ch1 Input of
On
CN9
Off
Remote
Controller
Operation
Indoor
Stop
Unit
In the case of "pulse" input
CONNECTOR
CN9 (RED)
Ch1 Input
CN9
Ch2 Input
Operation
Indoor
Unit
Stop
< =
5.25 (V).
< =
0.6 (mA).
ON
OFF
Input select
Edge
Pulse
COMMAND
ON
Operation
OFF
Stop
On
INPUT SIGNAL
Ch1
OFF
ON
OFF
ON
Ch2
The width of pulse must be longer than 200msec.
On
Off
On
Off
< =
) :
500 (ohm).
> =
) :
100 (kilo-ohm).
Ch 1
NOTE
1. The last command has priority.
2. The indoor units within the same
remote controller group operates
in the same mode.
3.The wire connection should be
separate from the power cable line.
COMMAND
Operation
Stop
02-38
1
2 CN 9
(RED)
3
Ch 1
1
Ch 2
2
CN 9
3
(RED)

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