Sentera Controls FCMFX-R Service manual

Mounting and operating instructions
FCMFX-R INTELLIGENT
MULTIFUNCTIONAL SENSOR

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Table of contents
SAFETY AND PRECAUTIONS 3
PRODUCT DESCRIPTION 4
ARTICLE CODES 4
INTENDED AREA OF USE 4
TECHNICAL DATA 4
STANDARDS 5
OPERATIONAL DIAGRAMS 5
WIRING AND CONNECTIONS 6
MOUNTING INSTRUCTIONS IN STEPS 6
OPERATING INSTRUCTIONS 8
VERIFICATION OF INSTALLATION 9
TRANSPORT AND STORAGE 9
WARRANTY AND RESTRICTIONS 9
MAINTENANCE 9
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SAFETY AND PRECAUTIONS
Read all the information, the datasheet, Modbus register map, mounting and operating
instructions and study the wiring and connection diagram before working with the
product. For personal and equipment safety, and for optimum product performance,
make sure you entirely understand the contents before installing, using, or maintaining
this product.
For safety and licensing (CE) reasons, unauthorised conversion and/ or modifications
of the product are inadmissible.
e product should not be exposed to abnormal conditions, such as extreme
temperatures, direct sunlight or vibrations. Long-term exposure to chemical
vapours in high concentration can affect the product performance. Make sure the
work environment is as dry as possible; avoid condensation.
All installations shall comply with local health and safety regulations and local
electrical standards and approved codes. is product can only be installed by an
engineer or a technician who has expert knowledge of the product and safety
precautions.
Avoid contacts with energised electrical parts. Always disconnect the power
supply before connecting, servicing or repairing the product.
Always verify that you apply appropriate power supply to the product and use
appropriate wire size and characteristics. Make sure that all the screws and nuts
are well tightened and fuses (if any) are fitted well.
Recycling of equipment and packaging should be taken into consideration and these
should be disposed of in accordance with local and national legislation/regulations.
In case there are any questions that are not answered, please contact your
technical support or consult a professional.
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PRODUCT DESCRIPTION
The FCMFX-R series are intelligent sensors featuring adjustable
temperature, relative humidity and CO2ranges. Their algorithm controls
a single analogue / modulating output based on the measured T, rH
and CO2values, which can be used to directly control an EC fan or an
actuator powered damper. All parameters are accessible via Modbus RTU.
ARTICLE CODES
Article
code Supply Maximum power consumption Nominal power consumption Imax
FCMFG-R 18—34 VDC 2,16 W 1,9 W 90 mA
15—24 VAC ±10% 3,9 W 3,5 W 180 mA
FCMFF-R 18—34 VDC 2,16 W 1,9 W 90 mA
INTENDED AREA OF USE
■Ventilation based on temperature, relative humidity and CO2levels in residential
and commercial buildings
■Demand controlled ventilation
■For indoor use only
TECHNICAL DATA
■Demand controlled ventilation, based on T, rH and CO2
■Analogue / modulating output type:
►0—10 VDC mode: RL≥ 50 kΩ
►0—20 mA mode: RL≤ 500 Ω
►PWM (open-collector type) mode: PWM Frequency: 1 kHz, min, RL≥ 50 kΩ; PWM
voltage level 3,3 or 12 VDC
■Selectable temperature range: 0—50 °C
■Selectable relative humidity range: 0—100 %
■Selectable CO2range: 0—2.000 ppm
■Replaceable CO2sensor element
■3 LEDs with adjustable light intensity for status indication
■Accuracy: ±0,4 °C (range 0—50 °C); ±3 % rH (range 0—95 % rH); ±30 ppm CO2
(range 400—2.000 ppm), depending on the selected parameter
■Inset or surface mounting
■Enclosure:
►internal: plastic RABS, black
►external: ABS, white
►cover: ASA, white
■Protection standard: IP30 (according to EN 60529)
■Typical range of use:
►temperature: 0—50 °C
►rel. humidity: 0—95 % rH (non-condensing)
►CO2: 400—2.000 ppm
■Storage temperature: -10—60 °C
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STANDARDS
■Low Voltage Directive 2014/35/EC:
►EN 60529:1991 Degrees of protection provided by enclosures (IP Code)
Amendment AC:1993 to EN 60529
►EN 60730-1:2011 Automatic electrical controls for household and similar use -
Part 1: General requirements
■EMC Directive 2014/30/EC:
►EN 60730-1:2011 Automatic electrical controls for household and similar use -
Part 1: General requirements
►EN 61000-6-1:2007 Electromagnetic compatibility (EMC) - Part 6-1: Generic
standards-Immunityforresidential,commercialand light industrialenvironments
EN 61000-6-3:2007 Electromagnetic compatibility (EMC) - Part 6-3: Generic
standards - Emission standard for residential, commercial and light-industrial
environments Amendments A1:2011 and AC:2012 to EN 61000-6-3
►EN 61326-1:2013 Electrical equipment for measurement, control and laboratory
use - EMC requirements - Part 1: General requirements
►EN 61326-2-3:2013 Electrical equipment for measurement, control and
laboratory use - EMC requirements - Part 2-3: Particular requirements - Test
configuration, operational conditions and performance criteria
■WEEE 2012/19/ EC
■RoHs Directive 2011/65/EC
OPERATIONAL DIAGRAMS
AO1,
max range
AO1,
min range
60
40
100
0
rH Min range
-30
0
0CO2Min range CO2Max range
Max
Min
T Min range T Max range
rH Max range
AO1 [%]
70
100
2.000
rH [%]T [°C] CO2[ppm]
CAUTION e output changes automatically depending on the highest T, rH or CO2values, i.e.
the highest of the three output values controls the output. See the green line in the
operational diagram above.
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WIRING AND CONNECTIONS
Article type FCMFF-R FCMFG-R
V+ 18—34 VDC 18—34 VDC 15—24 VAC ±10%
V- Ground Common ground*AC ~*
AModbus RTU (RS485), signal A
/B Modbus RTU (RS485), signal /B
Ao Analogue / modulating output - T, rH or CO2
(0—10 VDC / 0—20 mA / PWM)
GND Ground AO Common ground*
Connections Spring contact terminal block, cable cross section: 2,5 mm2; pitch
5 mm; shielded cable
e -F version of the product is not suited for 3-wire connection. It has separate
grounds for power supply and analogue output. Connecting both grounds together
might result in incorrect measurements. Minimum 4 wires are required to connect
-F type sensors.
e -G version is intended for 3-wire connection and features a ‘common ground’.
is means that the ground of the analogue output is internally connected with
the ground of the power supply. For this reason, -G and -F types cannot be used
together on the same network. Never connect the common ground of -G type
articles to other devices powered by a DC voltage. Doing so might cause permanent
damage to the connected devices.
ATTENTION
MOUNTING INSTRUCTIONS IN STEPS
Before you start mounting the unit, read carefully “Safety and Precautions”.
Then proceed with the following steps:
ATTENTION When planning the installation, allow enough clearance for maintenance and
service. Mount the sensor in a well-ventilated area.
1. Disconnect the supply voltage.
2. Remove the cover of the enclosure and take the controller out of the housing, so
that it can be easily connected.
3. Do the wiring according to the wiring diagram (see Fig. 1).
Fig. 1 Wiring and connections
Supply voltage:
FCMFF-R: 18—34 VDC
FCMFG-R: 18—34 VDC / 15—24 VAC ±10 %
Modbus
RTU
/B
A
Analogue / modulating
output
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4. Mount the internal enclosure into the wall using appropriate connecting elements
(not included in the set). Mind the correct position and mounting dimensions
shown in Fig. 2 and Fig. 3.
Fig. 2 Mounting dimensions - inset mounting Fig. 3 Mounting position
38
15
58
82
82
89
76
58
58
52
Correct Incorrect
Position at min. 1,5 m
from the floor
5. Put back the frame cover of the enclosure and secure it with the screws.
6. Switch on the power supply.
7. Customise the factory settings to the desired ones via the 3SModbus software
or the Sensistant configurator. For the default factory settings, see the Modbus
register map.
For surface mounting
1. Disconnect the power supply.
2. Remove the frame cover of the enclosure.
3. Take out the internal enclosure.
4. Mount the external enclosure onto the wall using the dowels and screws included
in the set. Mind the correct position and mounting dimensions shown in Fig. 4
and Fig. 5.
5. Insert the connecting cables through the grommets of the unit.
Fig. 4 Mounting dimensions - surface mounting Fig. 5 Mounting position
38
15
58
82
82
89
76
58
58
52
58
38
58
15
Correct Incorrect
Position at min. 1,5 m
from the floor
6. Do the wiring according to the wiring diagram (see Fig. 1) using the information
from section “Wiring and connections”.
7. Put the internal enclosure into the external one and fix it using the delivered
screws and washers. (Fig. 4).
8. Put back the frame cover of the enclosure and secure it with the screws.
9. Switch on the power supply.
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SENSOR

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10.
Customise the factory settings to the desired ones via the 3SModbus software
or the Sensistant configurator. For the default factory settings, see the Modbus
register map.
Optional settings
To assure correct communication, the NBT needs to be activated in only two devices
on the Modbus RTU network. If necessary, enable the NBT resistor via 3SModbus or
Sensistant (Holding register 9).
Example 1 Example 2
RX
ТX
NBT
NBT
Slave 2
Master
Slave n
Slave 1
Slave 2
Slave 1
RX
ТX
NBT
NBT
Master
Slave n
NOTE On a Modbus RTU network, two bus terminators (NBTs) need to be activated.
For the complete Modbus register data, refer to the product Modbus Register
Map, which is a separate document attached to the article code on the website
and contains the registers list. Products with earlier firmware versions may not be
compatible with this list.
NOTE
NOTE Mount the unit so that the terminal block and connections are at the lower side.
ATTENTION Do not expose to direct sunlight!
OPERATING INSTRUCTIONS
e unit is supplied with electrical energy at voltages high enough to inflict personal
injury or threat to health.
ATTENTION
Calibration procedure:
Sensor calibration is not necessary. All sensor elements are calibrated and tested in
our factory.
In the unlikely event of CO2sensor element failure, this component can be replaced.
Bootloader
anks to the bootloader functionality, the unit firmware can be updated via Modbus
RTU communication. With 3SM boot Application (part of 3SM center software
suite), ‘boot mode’ is automatically activated and the firmware can be updated.
NOTE Make sure the power supply does not get interrupted during “bootload” procedure,
otherwise you risk losing unsaved data.
LED indications
1. When the green LED is on, the measured value (temperature, relative humidity or
CO2) is between the minimum and maximum alert range values (Fig. 6 - 1).
2. When the yellow LED is on, the measured value (temperature, relative humidity
or CO2) is in the alert range (Fig. 6 - 2).
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3. When the red LED is on, the measured value (temperature, relative humidity or
CO2) is below the minimum measurement range value or above the maximum
value. Blinking red LED indicates loss of communication with a sensor (Fig. 6 - 3).
Fig. 6 LED indications
3
2
1
NOTE By default, the LED indication refers to temperature measurements. is can be
changed to relative humidity or CO2values via Modbus Holding Register 79 (see
Table Holding registers below).
Ambient light sensor
e measured light intensity in lux is available in Input Register 41. Additionally,
an active and standby level can be defined in Holding registers 35 and 36. Input
Register 42 indicates if the measured value is below standby level, above active
level or in between both levels:
■Ambient light level < standby level: Input Register 42 indicates “Standby”.
■Ambient light level > active level: Input Register 42 indicates “Active”.
■Standby level < Ambient light level < Active level: Input Register 42 indicates “Low
intensity”.
VERIFICATION OF INSTALLATION
After switching on the power supply one of the LEDs lights up according to the
status of the measured variable. If this is not the case, check the connections.
TRANSPORT AND STORAGE
Avoid shocks and extreme conditions; stock in original packing.
WARRANTY AND RESTRICTIONS
Two years from the delivery date against defects in manufacturing. Any modifications
or alterations to the product after the date of publication relieve the manufacturer
of any responsibilities. e manufacturer bears no responsibility for any misprints or
mistakes in this data.
MAINTENANCE
In normal conditions this product is maintenance-free. If soiled, clean with a dry or
damp cloth. In case of heavy pollution, clean with a non-aggressive product. In these
circumstances the unit should be disconnected from the supply. Pay attention that
no fluids enter the unit. Only reconnect it to the supply when it is completelydry.
FCMFX-R INTELLIGENT MULTIFUNCTIONAL
SENSOR