Azbil Infilex AC WY5117C1 Series User manual

AB-6438
© 2012-2017 Azbil Corporation All Rights Reserved.
1
Specifications/Instructions
Infilex™AC
Air Handling Unit Controller
for NC-bus Communication
General
Infilex AC Model WY5117C1XXX is a DDC controller for AHU.
It is installed in a small space such as an AHU control panel.
Infilex AC is equipped with inputs and outputs suitable for
AHU control, and its software is freely editable in response to
the applications.
Operator interface and room user terminal are connectable to
Infilex AC, supporting you in various situations to operate
Infilex AC.
Infilex AC also is networked with our BMS via our proprietary
protocol NC-bus. Infilex AC sends operating status to the
BMS and performs operating management in accordance
with the commands sent from the BMS in order for you to
integrally control and manage a whole building.
The time scheduling function of Infilex AC, on the other hand,
enables autonomous-distributed control.
AHU: Air handling unit
BMS: Building management system
DDC: Direct digital control
Features
●Compact design:
Small sized body fits inside a control panel of a compact
AHU.
●Wide range of input/output (I/O) combinations:
Model with the I/O combination best-suitable for the air
conditioning controls you desire, such as outdoor air
cooling control, humidification, etc. is selectable.
●Increase in I/O points:
An I/O module is added to Model WY5117C140X for
increasing the I/O points.
●Operator interface (Operator Panel):
Operator Panel (panel mount type/integral type)
connected to Infilex AC allows you to change the settings
of Infilex AC without accessing Infilex AC from the BMS.
●Room user terminals:
User terminal (Neopanel or Neoplate) is connectable to
Infilex AC, enabling the room occupants to turn on/off air
conditioning unit and change temperature setting.
●Cooperation with BMS:
Infilex AC is networked with our BMS to centrally monitor
and control AHU.
●Autonomous distributed control:
Even if a trouble occurs in the BMS, Infilex AC
individually performs backup operation to distribute
potential risks caused by malfunction of the BMS.
●Installation:
Screwless push-in terminals for I/O reduce wiring
workload.
Additionally, either DIN rail mount or screw mount is
selectable.
●CE Marking certified product:
Infilex AC Model WY5117C conforms to all the
applicable standards of CE Marking.
DIN: Deutsches Institut fur Normung (German Institute for
Standardization)

AB-6438
2
Safety Instructions
Please read instructions carefully and use the product as specified in this manual. Be sure to keep this manual near by for ready
reference.
Usage Restrictions
This product is targeted for general air conditioning. Do not use this product in a situation where human life may be affected. If
this product is used in a clean room or a place where reliability or control accuracy is particularly required, please contact our
sales representative. Azbil Corporation will not bear any responsibility for the results produced by the operators.
Caution for instrumentation design
Considering unexpected failures and contingencies, be sure to design and check safety of the system and equipments.
Warnings and Cautions
WARNING Alerts users that improper handling may cause death or serious injury.
CAUTION Alerts users that improper handling may cause minor injury or material loss.
Signs
Alerts users possible hazardous conditions caused by erroneous operation or erroneous use. The symbol inside 
indicates the specific type of danger.
(For example, the sign on the left warns of the risk of electric shock.)
Notifies users that specific actions are prohibited to prevent possible danger. The symbol inside graphically
indicates the prohibited action.
(For example, the sign on the left notifies that disassembly is prohibited.)
Instructs users to carry out a specific obligatory action to prevent possible danger. The symbol inside graphically
indicates the actual action to be carried out.
(For example, the sign on the left indicates general instructions.)
WARNING
Be sure to ground the product with ground resistance of less than 100 Ω.
Improper grounding might cause electric shock or malfunction.
Detach the terminal cover only when wiring the product. Before detaching the terminal cover, be sure to turn off the
power to the product and all the connected devices. After wiring, be sure to reattach the terminal cover.
Failure to do so might cause electric shock.
Before wiring and maintenance, be sure to turn off the power to the product.
Failure to do so might cause electric shock.
Install this product in a location out of reach of unauthorized people. (e.g. Inside of the control panel)
Failure to do so might cause electric shock.
CAUTION (1/2)

Install the product in a location that satisfies the operating conditions (temperature, humidity, power, vibration, shock,
mounting direction, atmospheric condition, etc.) as listed in the specifications and use the product within the operating
ranges as listed in the specifications.
Failure to do so might cause fire or device failure.
Installation and wiring must be performed by qualified personnel in accordance with all applicable safety standards.
All wiring must comply with applicable codes and ordinances.
Connect the cables to the product power supply terminals with the terminal lugs or an equivalent method to assure
permanent connection.
To connect the wires to the screw terminals, use crimp terminal lugs with insulation.
Failure to do so might cause short circuit or electric shock.

AB-6438
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CAUTION (2/2)
Take anti-lightening measures based on regional and building characteristics.
Lightening might cause fire or critical damage to the products without the anti-lightening measures.
Take anti-noise measures if the product is installed in a location near electric noise sources.
Failure to do so might cause malfunction or device failure.
Be sure to provide a circuit breaker for the power to the product as the product does not have a power switch.
Firmly tighten the terminal screws.
Insufficient tightening of the terminal screws might cause fire or overheating.

For wiring, strip each wire insulation for the length specified in this manual. If the strip length is longer than the
specified, the stripped part of the wires will be exposed, causing electric shock or short circuit between adjacent
terminals. If it is shorter, the stripped part will not contact the connector.
Do not use unused/spare terminals on the product as relay terminals.
Doing so might cause malfunction.
Do not block the ventilation holes of this product. (Be sure to peel off the protective sheet after installation and wiring).
Doing so might cause device failure.
If more than the rated power voltage is applied to the product, replace the product with new one for your safety.
Failure to do so might cause fire.
Do not disassemble the product.
Doing so might cause device failure.
When replacing batteries, read the instructions hereinafter and correctly replace the product batteries.
Failure to do so might cause overheating, burst, or leakage of the batteries.

Dispose of the used batteries in accordance with your local regulations.
Do not throw them in fire or in general garbage.
Doing so might cause burst or ignition.
Dispose of this product as industrial waste in accordance with your local regulations. Do not reuse all or a part of this
product.

AB-6438
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System Configurations
For BMS and devices that are compatible to Infilex AC, ask our salesperson.
Figure 1. System configuration example
Other connectable devices to NC-bus:
DIF-II/Energy meter
BACnetIP
BMS: Building management system
DIF-II: DGP (Data Gathering Panel) line interface-II
Client PC
InfilexGC
Model WY5111
Infilex

GD
Model WY5110
NC-bus (Max. 25 units and 500 m, but extendable up to 1000 m with the repeater module.)
InfilexFC
Model WY5205
SC-bus (Max. 50 units and 1000 m)
Neopanel
Model QY7205
InfilexFC
Model WY5205
Temperature
sensor
Temperature
sensor
Neoplate
Model QY7290
Infilex

ZM
Model WY5122
Temperature
sensor
Neopanel
Model QY7205
Temperature
senso
r
Infilex

VC
Model WY5206
SC-bus (Max. 50 units and 1000 m)
InfilexZM
Model WY5122
Infilex

VC
Model WY5206
Neopanel
Model QY7205
Neopanel
Model QY7205
Infilex

FC
Model WY5205
Neopanel
Model QY7205
InfilexFC
Model WY5205
InfilexVC
Model WY5206
Neoplate,
Model QY7290
Operator Panel
(Panel mount type)
Model QY5100
UT module
Model RY5001Q
InfilexAC
Model WY5117C
Neopanel
Model QY7205
Operator Panel
(Panel mount type)
Model QY5100
UT module
Model RY5001Q
Infilex

AC
Model WY5117C
Neopanel
Model QY7205
Operator Panel
(Integral type)
Model RY5001Q
Infilex

AC
Model WY5117C
Neoplate
Model QY7290
Operator Panel
(Integral type)
Model RY5001Q
InfilexAC
Model WY5117C
BMS

AB-6438
5
Model Numbers
Base model
number Power — I/O
Temperature
input Description
WY5117 Infilex AC for NC-bus communication
C 24 V AC
1 Fixed
1 Temperature input: 2 pts, voltage input: 2 pts, digital input: 4 pts,
voltage output: 2 pts, relay output: 3 pts,
1 UT module or Operator Panel (integral type) connectable*1, *2
2 Temperature input: 2 pts, voltage input: 2 pts, digital input: 4 pts,
voltage output: 3 pts, relay output: 4 pts,
1 UT module or Operator Panel (integral type) connectable*1, *2
3 Temperature input: 2 pts, voltage input: 2 pts, digital input: 6 pts,
voltage output: 5 pts, relay output: 5 pts,
1 UT module or Operator Panel (integral type) connectable*1, *2
4 Temperature input: 2 pts, voltage input: 2 pts, digital input: 8 pts,
voltage output: 6 pts, relay output: 6 pts,
1 UT module or Operator Panel (integral type) + 1 I/O module connectable*1, *2
00 RTD (Pt100)
0K RTD (Pt1000)
Notes:
*1 UT module, Operator Panel (integral type), and I/O module are optional. Separately order if needed.
*2 Regarding I/O modules, UT module, and the integral type Operator Panel that can be assembled with Infilex AC basic unit, refer to
AB-6527 Specifications/Instructions of Model RY50XX.
Parts for Installation (Optional)
Part number Description
83165861-001 Screw tab
83104567-001 DIN rail mounting bracket

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6
Specifications (1/2)
Item Specification
Power supply Rated voltage 24 V AC ± 15 %, 50 Hz/60 Hz
Power shutdown
detection
Max. 19.2 V AC
Power consumption 15 VA
Leakage current 1 mA or less
Environmental
conditions
Rated operating
conditions
Ambient temperature 0 C to 50 C
Ambient humidity 10 %RH to 90 %RH (non-condensing)
Altitude Max. 2,000 m
Vibration Max. 5.9 m/s2 (10 Hz to 150 Hz)
Transport/
storage
conditions
Ambient temperature -20 C to 60 C
Ambient humidity 5 %RH to 95 %RH (non-condensing)
Vibration for storage Max. 5.9 m/s2 (10 Hz to 150 Hz)
Vibration for transport Max. 9.8 m/s2 (10 Hz to 150 Hz)
Installation Inside of control panel
LED indication
(Operating status LED)
After Infilex AC is turned on, the LED operates as follows in response to the
Infilex AC operating status.
Power ON ON for several tens of seconds
Power OFF OFF
Major failure or initializing ON
Minor failure Repetition of 1-second ON, 0.25-second OFF, 0.25-seccond ON, and
0.25-second OFF
Engineering mode Repetition of 0.25-sec ON, 0.25-second OFF, 0.25-second ON, and
1.25-second OFF
Data transmitting Repetition of 1-second ON and 1-second OFF
NC-bus error Repetition of 0.25-second ON and 0.25-second OFF
Backup in the event of power failure RAM*1, RTC*2Lithium battery backup
Data file Non-volatile memory (flash memory) backup
Input Digital input Current 5 mA typ.
Voltage 24 V DC typ.
Connectable output Dry contact or open collector
Allowable contact
ON-resistance
Max. 100 Ω
Allowable contact
OFF-resistance
Min. 100 kΩ
Allowable ON residual
voltage
Max. 1 V DC
Temperature
input
Input signal RTD (Pt100 (100 Ω/0 C), Pt1000 (1000 Ω/0 C))
Measuring range -20 C to 80 C
Voltage input Input voltage range 1 V DC to 5 V DC
Input impedance 500 kΩ
Output Relay output
(N.O. contact)
Output method Relay output N.O. contact (N.O. contacts share the same common line.)
Contact rating Max. 24 V AC, 0.5 A (Inductive load: cosø = 0.4 or more)
Max. 24 V DC, 0.5 A
Minimum applicable load 5 V DC, 10 mA DC
Relay output
(N.O./N.C.
contact)
Output method Relay output, N.O./N.C. contact (N.O./N.C. contact does not share the
common line with N.O contact.)
Contact rating Max. 24 V AC, 0.5 A (Inductive load: cosø = 0.4 or more)
Max. 24 V DC, 0.5 A
Minimum applicable load 5 V DC, 10 mA DC
Voltage output Output voltage range 2 V DC to 10 V DC / 0 V DC to 10 V DC
Min. load resistance Min. 10 kΩ
Communications NC-bus Transmission system Current transmission
Transmission speed 4800 bps
Transmission distance 500 m
Weight 500 g
Material (housing), color Modified PPE, light gray
Terminal connection Power supply, ground M3 screw terminals (7.62 mm pitch between terminals)
NC-bus communication, I/O Screwless push-in terminals
PPE: Polyphenylene ether
RAM: Random-access memory
RTC: Real-time clock
Notes:
*1 RAM: A form of data storage that can be accessed directly in any random order. Stored data is erased when the power is turned off. RAM
of Infilex AC is backed up by a lithium battery.
*2 RTC: A computer clock that keeps track of the current time. RTC of Infilex AC is backed up by a lithium battery.

AB-6438
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Wire Specifications
Item Wiring Wiring length*
1
Condition
Power supply*2JIS IV2.0 mm2or JIS CVV 2.0 mm2or greater


Ground*2JIS IV 2.0 mm2or JIS CVV 2.0 mm2or greater

Ground resistance: Max. 100 Ω
Digital input*
3
JIS IV, JIS CVV, or KPEV 0.9 mm2, 1.25 mm250 m

Relay output*3JIS IV, JIS CVV, or KPEV 1.25 mm250 m Max. 30 V AC/DC
Temperature input*3,
4
JIS IV, JIS CVV, or KPEV 1.25 mm250 m

Voltage input*3JIS IV, JIS CVV, or KPEV 0.9 mm2, 1.25 mm250 m

Voltage output*3JCS CVV-S 1.25 mm220 m Inverter output
JIS IV, JIS CVV, or KPEV 1.25 mm210 m
Valve/damper
(for the system common wiring*5)
JIS IV, JIS CVV, or KPEV 2.0 mm2
(from the relay terminal block)
20 m
JIS IV, JIS CVV, or KPEV 1.25 mm220 m Valve/damper
Communication
(NC-bus)*3
JCS IPEV-S 0.9 mm2500 m

JCS: Japanese Electric Wire & Cable Makers' Association Standard
JIS: Japanese Industrial Standards
KPEV: Cable standard provided by Furukawa Electric Co., Ltd.
Notes:
*1 Wiring length shown above is the total wiring length from Infilex AC to a device in connection, including the wiring to and from an external
terminal block.
*2 Power supply and ground wires are connected to the M3 screw terminals. Crimp the terminal lugs on the wire ends.
*3 Communication and input/output wires are connected to the screwless push-in terminals. Strip the wire sheath and connect the wires.
Sheath strip length: 8 mm (Pin terminal cannot be used.)
*4 RTD (Pt1000) temperature input is two-wire. Take the measuring error into account because the wire resistance causes measuring error.
For instance, 1.25 mm2size wire causes approx. 0.1 °C measuring error every 10 m. Correct the measuring error by setting Infilex AC.
*5 When the valve/damper is connected for the system common wiring, the valve/damper operating current flows through the common line.
Hence, the specification is as shown above. For a 20 m long IV 1.25 mm2cable, 4-wire connection is necessary to prevent the operating
current from flowing through the common line.

AB-6438
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Terminals Layout
Notes:
*1 Other items that satisfy input/output specifications of Infilex AC are connectable as well. For available inputs and outputs of each Infilex AC
model, refer to Table 1.
*2 RTD (Pt100) temperature input is three-wire. Connect Pt100 temperature sensor to the terminals 13 –15 or 16 –18.
RTD (Pt1000) temperature input is two-wire. Connect Pt1000 temperature sensor to the terminals 13 and 14 or 16 and 17.
Figure 2. Terminals layout with I/O connection example
Table 1. Applicable inputs/outputs for each model number
Model number AI1 to
AI4
AO1,
AO2 AO3 AO4 AO5 AO6 DI1 to DI4
DI5,
DI6
DI7,
DI8
DO1,
DO2 DO3 DO4 DO5 DO6
WY5117C110X 
WY5117C120X 
WY5117C130X 
WY5117C140X* 
Note:
* For an I/O module that can be added to Model WY5117C1400, refer to AB-6527 Specifications/Instructions of Model RY50XX.
S
S
Fan ON/OFF
Fan ON/OFF
Humidifier
Outdoor air
damper
Return air
temperature
Supply air
temperature
Return air humidity
General-purpose
voltage input
I/O connection
example*1
Supply air fan status
Supply air fan alarm
Return air fan status
Return air fan alarm
Filter alarm
Water-leak alarm
General-purpose input
General-purpose input
Hot water valve or
Chilled/hot water valve
Chilled water valve
Outdoor air damper or
Exhaust air damper
Return air damper
Fan inverter
Fan inverter or
Proportional
humidifying
Temperature
input*2
(-20 to 80 °C)
Voltage input
(1 to 5 V)
Voltage output
(2 to 10 V/
0 to 10 V)
NC-bus
24 V AC
Relay output
(for momentary only)
(24 V AC/DC)
Relay output
(for momentary/maintained)
(24 V AC/DC)
Digital input
Current: 5 mA
Voltage: 24 V DC
applied from
Infilex AC
I/O connection
example*1

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Dimensions
Figure 3. Dimensions (mm)
Parts Identifications
Table 2. Indication and operation of the operating status LED
LED indication LED operation
Data transmitting Repetition of 1-second ON and
1-second OFF
NC-bus error Repetition of 0.25-second ON and
0.25-second OFF
Major failure /
initializing
ON
Minor failure Repetition of 1-second ON,
0.25-second OFF, 0.25-second ON,
and 0.25-second OFF
Engineering mode Repetition of 0.25-second ON,
0.25-second OFF, 0.25-second ON,
and 1.25 -second OFF
Power OFF OFF
Figure 4. Parts identifications
60 90
140
DIN rail mounting hoo
k
Operating status LED
Battery holder
Data Setter connector
(female)
S1 switch
Do not press the S1 switch.

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Installation
CAUTION
Installation and wiring must be performed by qualified personnel in accordance with all applicable safety standards.
Installation locations
●Install Infilex AC in a control panel.
●Do not mount Infilex AC under the conditions of high temperature and humidity.
●Leave at least 35 mm clearance between the top/bottom surface of Infilex AC and other devices.
Mounting position
Do not mount Infilex AC with the body tilted. Always mount it in the positions as shown in the figure below. No other mounting
positions are allowed.
Upright
Sideway (allowed only when I/O module, UT module, or integral type Operator Panel is NOT assembled with the
basic unit)
Note:
* Do not mount the Infilex AC basic unit sideway with the power supply terminals located upper corner, lying on its back, or lying face down.
Figure 5 Mounting positions
Do not tilt. Do not tilt.
Vertical (upright)
direction
Power supply terminals
located on the lower corne
r
of the front face Vertical (upright)
direction

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DIN rail mount
The following figure shows the mounting dimensions of Infilex AC on DIN rail.
The width may vary depending on how many modules (I/O module, UT module, and integral type Operator Panel)*1are
assembled with the Infilex AC basic unit.
Width of Infilex AC = 60 mm*2+ 30 mm*3x n (quantity)
Notes:
*1 Regarding I/O modules, UT module, and the integral type Operator Panel that can be assembled with Infilex AC basic unit, refer to
AB-6527 Specifications/Instructions of Model RY50XX.
*2 Width of Infilex AC basic unit
*3 Width of I/O module, UT module, or integral type Operator Panel
Hatched area in the figure below shows the maintenance clearance.
Notes:
*1 Pitch between upper/lower cable duct and the DIN rail.
*2 Up to two modules (I/O module and/or UT module/integral type Operator Panel) can be assembled with the basic unit.
*3 DIN rail position is shifted 5 mm downward from the center of Infilex AC.
Figure 6. Mounting dimensions (mm): DIN rail mount
Mount and fix Infilex AC on DIN rail so that it does not fall from the DIN rail. Check that the DIN rail holders of each module are
pushed up and fixed on the DIN rail.
Fasten the bilateral sides of Infilex AC with two DIN rail mounting brackets (Part No. 83104567-001, separate order is required).
DIN rail mounting brackets for bilateral sides
Part No. 83104567-001
Cable
duct
Cable
duct
Infilex AC
(
45
)
35
140
(45)
(122.5)*1(132.5)*1
Cable duct
20
20 92
(60)
(60)
Cable duct
65 75
35
DIN rail holder
Infilex AC
basic unit
DIN rail
Infilex AC
60 + 30 n
Hook
5*3
106
*2

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Direct screw mount
The following figure shows the mounting dimensions of Infilex AC mounted directly on a mounting surface with screws.
The width may vary depending on how many modules (I/O module, UT module, and integral type Operator Panel)*1are
assembled with the Infilex AC basic unit.
Width of Infilex AC = 60 mm*2+ 30 mm*3x n (quantity)
Notes:
*1 Regarding I/O modules, UT module, and the integral type Operator Panel that can be assembled with Infilex AC basic unit, refer to
AB-6527 Specifications/Instructions of Model RY50XX.
*2 Width of Infilex AC basic unit
*3 Width of I/O module, UT module, or integral type Operator Panel
Hatched area in the figure below shows the maintenance clearance.
Note:
* Up to two modules (I/O module and/or UT module/integral type Operator Panel) can be assembled with the basic unit.
Figure 7. Mounting dimensions (mm): Direct screw mount
To mount Infilex AC with screws, the screw tabs (Part No. 83165861-001, with separate order required) are required. Mount and
fix Infilex AC on the mounting surface with M4 8 screws. (One screw tab and two screws for one basic unit/module are
required.)
DIN rail holder
Pull down the DIN rail
Screw tab Part No.
Rear
side
Screw
20 20
30 45 30
35 140
15
7
To attach the screw tab,
insert the screw tab into
the slit provided on the
rear side of Infilex AC.
Infilex
AC
60 + 30 n
Insert.
* See Note.

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Wiring
WARNING
Detach the terminal cover only when wiring the product. Before detaching the terminal cover, be sure to turn off the
power to the product and all the connected devices. After wiring, be sure to reattach the terminal cover.
Failure to do so might cause electric shock.
Before wiring and maintenance, be sure to turn off the power to the product.
Failure to do so might cause electric shock.
CAUTION
Installation and wiring must be performed by qualified personnel in accordance with all applicable safety standards.
All wiring must comply with applicable codes and ordinances.
Firmly tighten the terminal screws.
Insufficient tightening of the terminal screws might cause fire or overheating.

For wiring, strip each wire insulation for the length specified in this manual. If the strip length is longer than the
specified, the stripped part of the wires will be exposed, causing electric shock or short circuit between adjacent
terminals. If it is shorter, the stripped part will not contact the connector.
Do not use unused/spare terminals on the product as relay terminals.
Doing so might cause malfunction.
Do not block the ventilation holes of this product. (Be sure to peel off the protective sheet after installation and wiring).
Doing so might cause device failure.
Precautions for wiring
●Tube marker:
Since Infilex AC adopts the screwless push-in terminals, wires are connected
without crimping terminal lugs. Therefore, if normal tube markers are used,
they may come off when you disconnect the wires. To prevent this, use the
following Flat Tube Marker. It is held on a wire by friction and thus does not
come off easily.
Flat Tube Marker
Manufacturer Phoenix Contact
Item number 5880029
Model TMC-3
Applicable wire size 0.4 mm2to 2 mm2
Package unit 200 m/roll
●2 mm2cable running outside the control panel:
Use an external terminal block to switch to 1.25 mm2cable inside the control panel.
●Two wires for one terminal:
Use an external terminal block to aggregate the wires.
●Fan ON/OFF:
Use a small-power circuit (max. 60 V operating voltage and 1.5 A operating current) to turn on and off fan.
●Signal wire for output to inverter:
Use a shielded cable.
Power supply wiring
Crimp M3 terminal lugs with insulation on the wire ends, and connect the wires to the power supply terminals.
Figure 8. Power supply wiring
Power supply wires
Power supply
terminals
1
2
3
Connect.

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Wiring to I/O and NC-bus terminals
The I/O and NC-bus wires are connected to the screwless push-in terminals of Infilex AC. Follow the procedure below for the I/O
and NC-bus wiring.
1) Strip the wire sheath 8 mm.
Note:
* Scale for the strip length is indicated on the front surface of Infilex AC basic unit. If the insulation stripped part is longer than 8 mm, it
may get exposed, causing electrical shock or short circuit between adjacent terminals. If it is shorter, it may not contact the terminal
connector.
2) Make sure that no wire fiber goes out of the wire end.
3) Press the button on the terminal block deeply enough using a slotted screwdriver and insert the wire.
(Maximum button-pressing force is 23 N.)
Then, release the button.
4) Gently pull out the wire horizontally to make sure that it is completely held by the clamp and check no wire fiber being
disconnected from the terminal.
Note:
* If you pull out the wire diagonally, it may be disconnected.
Arrangement of the wires connected to Infilex AC
Notes:
* Neatly place the wires using cable ties or the like so as not to hide LED, Data Setter connector, ►mark of Data Setter connector, S1 switch,
battery holder, and indication tag.
* Do not leave slack in the wires that run between the cable duct and Infilex AC.
* Sideway mounting shown in the figure above is allowed only when I/O module, UT module, or integral type Operator Panel is NOT
assembled with the basic unit. Do not mount the Infilex AC basic unit sideway with the power supply terminals located upper corner, lying on
its back, or lying face down.
Always install the basic unit assembled with an I/O module, and/or UT module/integral type Operator Panel in upright position.
Figure 9. Arrangement of the wires connected to Infilex AC
LED
Data Setter
connector
S1 switch
Battery holder
Indication tag
(Infilex AC mounted sideway with the power
supply terminals located on the lower corner.

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15
Precautions for Wiring of Infilex AC and Devices
System common wiring
Ground line () is used as a common line for signal transmission to/from the field devices.
For the system common, the common-mode power must be supplied to Infilex AC and each device (such as ACTIVAL™) via the
wires connected to "~" and "" terminals of Infilex AC and each device. For the signal transmission between Infilex AC and each
device, use "" wiring.
Figure 10. Wiring example: System common wiring
IMPORTANT:
Use an isolation transformer. Do not ground the secondary side of the transformer.
Provide a terminal block aright ahead of the transformer, and divide the line at the terminal block to connect
to each device. (See Fig. 10.)
Inverter
Figure 11. Wiring example: Inverter
IMPORTANT:
Shielded cable must be single-point grounded on the inverter.
24 V AC
Inverte
r
From From 
+
-


Infilex AC




Terminal block for
branching
Infilex AC
A
CTIVAL or
damper actuator
A
CTIVAL or
damper actuator


+
-


+
-


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16
Humidity sensor
Figure 12. Wiring example: humidity sensor
IMPORTANT:
If Infilex AC and a humidity sensor are powered by a single transformer, the sensor might get damaged.
Depending on the other connected devices and on the wiring condition, a short-circuit current may flow into the
sensor and into the Infilex AC.
Precautions for Use
Before supplying the power
●Check that the all the wires are correctly connected.
●Remove the protective sheet from the top surface of Infilex AC.
Note:
* if some foreign objects possibly come inside Infilex AC from the ventilation holes on the side and bottom surfaces, cover the ventilation
holes with sheets.
Figure 13. Protective sheet
●Several tens of seconds are required for the Infilex AC normal operation after the power is turned on. During this time, the
red LED on the front stays ON temporarily, but this does not indicate an error.
Humidity
senso
r




+
-
24 V AC

Infilex AC

2) Tear off.
1) Peel off the adhesive area.

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17
Connection of our engineering tool (Data Setter / PC-MMI)
●Connection of Data Setter Model QY5111B
No conversion cable is required. Directly insert the male connector of the Data Setter into the female connector provided on
the Infilex AC basic unit.
At this time, hold the male connector with the ◄mark facing left and insert it so that the mark points to the ►mark on the
Infilex AC basic unit.
●Connection of Data Setter Model QY7211B
Convert the D-SUB connector to the mini DIN connector with the conversion cable (Part No. 83104995-001).
At this time, hold the male connector with the ◄mark facing left and insert it so that the mark points to the ►mark on the
Infilex AC basic unit.
Figure 14. Connection of our engineering tool
System indication label for the controller number
The indication tag has the system indication label on its back. Turn it over and fill in the controller number on the label.
Figure 15. System indication label
Insert the male
connector as the two
marks point to each
other.
Turn over.
Indication tag

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18
Maintenance (Lithium Battery Replacement)
CAUTION
When replacing batteries, read the instructions hereinafter and correctly replace the product batteries.
Failure to do so might cause overheating, burst, or leakage of the batteries.

Dispose of the used batteries in accordance with your local regulations.
Do not throw them in fire or in general garbage.
Doing so might cause burst or ignition.
IMPORTANT:
Only authorized service personnel is allowed to replace the battery.
Do not touch the power supply unit when replaceing the battery.
Replace the lithium battery every 5 years if the product is always in use (in ON state).
Since the remaining battery level cannot be checked by measuring the terminal voltage, be sure to replace the
battery every 5 years.
Replace the lithium battery with the power ON.
If the product has never or hardly been operated (in OFF state) for a year, replace the lithium battery before the
product operation.
Battery replacement
1) Pull out the battery holder using a slotted screwdriver.
2) Disconnect the connector and detach the lithium battery from the battery holder.
3) Place a new lithium battery in the battery holder and connect the connector.
4) Insert the battery holder into the basic unit.
5) Fill in the date for next replacement (5 years after the replacement) on the indication tag using an oil-based pen.
Figure 16. Battery replacement
3)
2)
Infilex AC basic unit
Lithium battery
for backup
Battery holder Battery Connector
1)
4)
5)

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19
Blank page added for page editing purpose.

AB-6438
ACTIVAL and Infilex are trademarks of Azbil Corporation in Japan or in other countries.
BACnet is a registered trademark of American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE).
20
AB-6438
Rev. 9.0 Jul. 2017
Install this product in a panel cabinet.
This product complies with the following harmonised standards of the Electromagnetic Compatibility Directive
(EMCD) and the Restriction of the use of certain Hazardous Substances in Electrical and Electronic Equipment
Directive (RoHSD).
EMCD: EN 61326-1 Class A, Table 2 (for use in an industrial electromagnetic environment)
RoHSD: EN 50581