Wiring
(continued)
Pass
through the power-in port.
Power supply terminal board (TB1)
ON
L
N
OFF
Clamper
(supplied)
The earth wiring for
protection should be longer
than the power line (L, N).
If the power supply wiring is mistakenly connected
to a terminal board other than the power supply
terminal board, the devices connected to this
controller or this controller will malfunction.
Connecting to External Equipment
• Non-voltage contact "a"
• Keep the external I/O wiring lengths of 20 meters or less. If a longer length is needed, use a Communication Adaptor or relay.
• A voltage of DC5 V (approx. 10 mA) is applied to the contact to detect the input signal.
• Do not apply an external voltage to the input terminal.
• The contact allowable voltage and current for the output signal terminal are max. DC30 V and 0.5 A respectively.
Pulse meter input
(Non-voltage contact "a" Pulse)
Common (COM1)
Pulse meter input (Pi1)
Pulse meter input (Pi2)
Pulse meter input (Pi3)
• Minimum pulse width: 30 msec
or more, or 100 msec or more
(selectable by setting)
• Minimum pulse interval: 1 sec
Setting and Test Operation
Turn on all of the indoor units and the outdoor units.
Turn on the Communication Adaptor (only when
connected), and make the necessary settings.
(See "Installation Instructions" supplied with the
Communication Adaptor.)
Turn on this unit.
Attach the power switch cover to the original position.
• Do not allow the wirings to be caught.
Refer to "Quick Reference" and check the following.
• Check if the clock setting and the number of connected
units are correctly displayed.
Power switch
Power supply
wiring
(AC100
~240V)
Earth terminal
Clamper
board
(supplied)
(Protective earth)
Equipment side
7
8
9
10
ON
OFF
LAN
terminal
Fix
securely.
Signal terminal board (TB2) connection
Connect the shield wiring for the inter-
unit control wiring to ground. (FG
Connect to inter-unit control wiring (LINK1)
Connect to inter-unit control wiring (LINK2)
0
14
1
15
2
16
3
17
4
18
5
19
6
20
7
21
8
22
9
23
10
11
Signal terminal board (TB2)
25
12
26
13
• Set the central address.
• Make other necessary settings (unit name, area setting,
distribution setting, etc.).
• Check if the indoor unit, etc. can be operated properly
using this unit, and correct statuses are displayed.
Refer to one of "Service Manual", "Test Run
Service Manual" and "Technical Data", and check
the following.
• Make the communication setting with the air conditioner.
• Check and confi rm the connection confi guration.
5
Use these screws when connecting the shield
wiring to ground. (FG*
Inter-unit
control
wiring
LAN
Communication
Adaptor control
Cable
wiring
E xternal
equipment
connection
terminal
(See "Connecting to External
Equipment")
Signal terminal board (TB2)
FG*
4
*4
) .
FG*
U1
+
U2
-
U1
U2
External output
(Non-voltage contact "a" Static)
Common (COM2)
17
Digital output1 (DO1)
18
Digital output2 (DO2)
19
• Minimum application load: DC5V 1mA
External input
*5
(Non-voltage contact "a" Static)
Common (COM3)
20
21
Digital input1 (Di1)
22
Digital input2 (Di2)
23
Digital input3 (Di3)
*5: When performing the demand control,
connect to External input (Di) terminal.
*4: Functional Ground
)
4
4
Connect the Communication
Adaptor control wiring.
(ADAPT +,-,FG*
4
)
Equipment side
Equipment side