En-11
NOTE :
When connected to multiple indoor units directly, it will cause breakdown.
Operation behavior
●
Input signal type
The input signal type can be selected.
It is switched by DIP switch on the indoor unit PCB.
Pulse
The width of pulse
must be longer than
200msec.
Edge
DIP switch [Set 2 SW2]
Input signal type
OFF (Factory setting)
Edge
ON
Pulse
●
When function setting is “Operation/Stop” mode.
[In the case of “Edge” input]
Connector
Input signal
Command
Ch1 of CNA01 or CNA02
OFF
→
ON
Operation
ON
→
OFF
Stop
[In the case of “Pulse” input]
Connector
Input signal
Command
CNA01 or CNA02
Ch1
OFF
→
ON
Operation
Ch2
OFF
→
ON
Stop
* 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
Input signal
Command
Ch1 of CNA01 or CNA02
OFF
→
ON
Emergency stop
ON
→
OFF
Normal
[In the case of “Pulse” input]
Connector
Input signal
Command
CNA01 or CNA02
Ch1
OFF
→
ON
Emergency stop
Ch2
OFF
→
ON
Normal
* All indoor units of same refrigerant system stops when Emergency stop operates.
●
When function setting is “Forced stop” mode.
[In the case of “Edge” input]
Connector
Input signal
Command
Ch1 of CNA01 or CNA02
OFF
→
ON
Forced stop
ON
→
OFF
Normal
[In the case of “Pulse” input]
Connector
Input signal
Command
CNA01 or CNA02
Ch1
OFF
→
ON
Forced stop
Ch2
OFF
→
ON
Normal
* 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.
• Selection method of functions
“Operation/Stop” mode or “Emergency stop” mode, “Forced stop” mode can be selected
with function setting of indoor unit.
●
Forced thermostat off function
[“Edge” input only]
Connector
Input signal
Command
Ch3 of CNA03 or CNA04
OFF
→
ON
Thermostat off
ON
→
OFF
Normal
(2) External output
• A twisted pair cable (22AWG) should be used. Maximum length of cable is 25m.
• Use an external input and output cable with appropriate external dimension, depending
on the number of cables to be installed.
• Output voltage: Hi DC12V±2V, Lo 0V.
• Permissible current: 50mA
Output select
●
When indicator etc. are connected directly
Operation
indicator
Error
indicator
Indoor unit Fan
status indicator
connected unit
P.C.B
CNB
01
●
When connecting with unit equipped with a power supply
CNB
01
P.C.B
Connected
device 1
Connected
device 2
Connected
device 3
connected unit
Relay (Field supply)
Operation behavior
Connector
Output voltage
Status
CNB01
External output1
Pins 1-2
0V
Stop
DC 12 V
Operation
External output2
Pins 1-3
0V
Normal
DC 12 V
Error
External output3
Pins 1-4
0V
Indoor unit fan stop
DC 12 V
Indoor unit fan operation
(3) Connection methods
• Wire modi
fi
cation
Remove insulation from wire attached to wire kit connector.
Remove insulation from
fi
eld supplied cable. Use crimp type insulated butt connector to
join
fi
eld cable and wire kit wire.
IMPORTANT:
Be sure to insulate the connection between the wires.
Option parts
External input/output wire
Solder and insulate the connected parts.
Field supply
• Connection terminals and wiring arrangement
In following
fi
gure, all the possible connectors are connected for description.
In actual installation, you cannot connect all the connectors at once.
Cable tie (Field supply)
Clamp
Controller PCB
Power supply PCB
9367702107-02_IM.indb Sec1:11
9367702107-02_IM.indb Sec1:11
1/25/2013 3:51:38 PM
1/25/2013 3:51:38 PM
