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7. Communication Adaptor
(SHA-KA128AG(B))
1
Installing
Note
G Do not run the indoor/outdoor communication lines, input/
output lines, and power cables through the same conduit, or
twist those cables together, or place the cables near one
another. It can cause malfunction.
G Install the main unit away from any sources of electrical
noise.
G Avoid installing in any locations where the unit may come
into contact with water, or in any extremely humid locations.
G Avoid installing in any location that is subject to excessive
vibration or physical impacts.
(1) After determining the attachment position, secure the
installation hardware as shown in the dimensions diagram. If
the included screws will not work for the installation, prepare
appropriate screws (such as metric ones) for use at the site.
(2) Attach the main unit and fasten the installation hardware as
illustrated.
(3) If the installation hardware is loose or appears like it will fall
out, remove the upper case on the unit and secure with
screws in the failsafe screw holes.
2
Wiring
Always shut off the power supply (breaker) before installing or uninstalling the Communication Adaptor.
Remove the two screws at the front of the unit and remove the upper case.
Arrangement of the terminal board and switches
Detailed board
illustration
Home key
S6
D1
HOME
D2
Terminating resistance plug
for the Communication
Adaptor control wire
S1
FG AC100~240V
1
3
CN1
Power supply
Power switch
terminal strip
(1) Connecting the power supply
7
The unit can use AC power sources between 100 and 240 V.
Connect the power supply to terminals 2 (N) and 3 (L) on the power terminal strip CN1. (Connect the AC neutral end to N.)
Connect the ground line securely.
(2) Connecting the communication line
G For the Communication Adaptor control wires, use only two-conductor shielded wire with a cross-section between 0.5 and 2.0 mm
(MVVS or CPEVS).
G Be sure to ground only one end of the shielding.
G The overall length of each line should be 1 km or less.
G Do not run the communication line through the same conduit as the power supply, use the same cable as the power supply, or run close to
the power supply line (maintain at least 30 cm separation).
G Do not run the LINK1 and LINK2 signal lines through the same conduit, use the same cable for wiring, or run them close together.
G Use different communication and power cables so they can be differentiated visually.
7-segment LED
Up, down and
set keys
S7
S8
S9
UP DOWN SET
CN2
10
19
0
9
Signal terminal strip
(see details at right)
200
30
35
60
Installation
260
hardware
131
Failsafe
screw holes
Detailed terminal
assembly illustration
N
L
ON
OFF
AC100V~240V
POWER
ADAPT +/- : Communication Adaptor control wire (RS-485)
LINK 1/2:
Indoor/outdoor control wire (HBS)
P1:
Pulse meter inputs (gas flow meter and fuel flow meter) (*)
P2 and P3: Pulse meter input (power flow meter) (*)
DI1:
All stop input (*)
DI2:
All operation input (*)
DI3:
Reserved
DO1:
All alarm output (*)
DO2:
All operation output (*)
(*) Input/output function when connecting to the Intelligent Controller
2
7 - 120
Mini ECO-i System
Remote Control Functions
Installation
dimensions
Lower the unit so it
catches on the
installation hardware
Detailed
illustration
Failsafe screws
10
11
12
13
14
15
16
17
18
+
–
DO 1 DO 2
DI 1
DI 2
ADAPT(RS485) DO-COMMON
DI-COMMON
0
1
2
3
4
5
6
7
U1
U2
U1
U2 (LINK2
P1
(LINK1
LINK1
–U2)
LINK2
–U2)
P-COMMON
Wall or
other
surface
19
DI 3
8
9
P2
P3
2
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