Sentera Controls RDCZ Series Service manual

Mounting and operating instructions

RDCZ RESIDENTIAL FAN

SPEED CONTROLLER

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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 5

MOUNTING INSTRUCTIONS IN STEPS 6

OPERATING INSTRUCTIONS 7

MENU STRUCTURE 10

7-SEGMENT DISPLAY INDICATION 11

VERIFICATION OF INSTALLATION INSTRUCTIONS 12

TRANSPORT AND STORAGE 12

WARRANTY AND RESTRICTIONS 12

MAINTENANCE 12

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SAFETY AND PRECAUTIONS

Read all the information, the datasheet, 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 treat the product as if it is

live. 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

e RDCZ series are residential HVAC controllers used to control AC fans or voltage

controllable motors in HVAC applications. ey feature a wide supply voltage

range 110—230 VAC / 50—60 Hz and a variable control output signal between

an adjustable minimum and maximum level. e controller can work in 2 modes.

In Automatic mode it is a demand-based controller with adjustable setpoint that

can be connected to a broad range of Sentera sensors. In Manual mode, the RDCZ

works as a full-featured triac controller. e settings are easily adjustable either via

the 3-button interface equipped with a 7-Segment LED display, via our 3SModbus

software application or via the Sensistant conﬁgurator.

ARTICLE CODES

Code Supply Enclosure

RDC Z9-15-WH 110—230 VAC ±10 % /

50—60 Hz

white-ivory (ASA LURAN 757, RAL 9010)

RDC Z9-15-BK anthracite (ABS- copolymer, RAL 7021)

INTENDED AREA OF USE

■Manual control for HVAC applications

■HVAC applications for improved comfort and energy saving

■For indoor use only

TECHNICAL DATA

■Supply voltage, Us: 110—230 VAC ±10 % / 50—60 Hz

■Inrush current:

►Max. 15 A (110 VAC)

►Max. 25 A (230 VAC)

■No-load power:

►110 VAC / 60 Hz < 0,9 W

►230 VAC -/ 50 Hz < 2,3 W

■Regulated output: 30—100 % Us

■Minimum load: 100 mA

■Maximum load: Imax. 1,5 A

■Minimum output voltage, Umin: 30—65 % Us

■Maximum output voltage, Umax: 75—100 % Us

■Start-up value: 30—100% Us

■Start-up duration: 2—10 seconds

■7-segment LED display and 3-button keyboard interface

■Enclosure:

►External: IP54 (according to EN 60529)

►Internal: IP44 (according to EN 60529)

■Operating ambient conditions:

►temperature: -10—40 °C

►rel. humidity: 5—80 % rH (non-condensing)

■Storage temperature: -20—50 °C

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STANDARDS

■Low Voltage Directive 2014/35/EC

■EMC Directive 2014/30/EC: EN 61000-6-2: 2005/AC:2005,

EN 61000-6-3:2007/A1:2011/AC:2012, EN 61326-2-3:2013

■WEEE Direc tive 2012/19/EC

■RoHs Directive 2011/65/EC

OPERATIONAL DIAGRAMS

Automatic mode

PI control (Cool, Dry, Drain)

t, (s)

Input

(°C, ppm,

PI control (Heat, Humidify, Obtain)

* PI control can require adjustment of parameters, depending on the local circumstances.

Out

[%]

Max

Min

SP - Hyst SP + HystSP In

(°C, ppm, %)

Direct control (Cool / Dry /Drain)

Direct control (Heat / Humidify / Obtain)

Manual mode

Stepless operational diagram 4 steps operational diagram

40 100

100

Out

[%]

LED

indication

(Stand-by)

Min

range

Max range

Min

range

Max range

LED

indication

(Stand-by)

Out

[%]

100

040

-0- 80

-2-

-1- 100

-3-

WIRING AND CONNECTIONS

L Power supply, line (110—230 VAC ±10 % / 50—60 Hz)

NPower supply, neutral (110—230 VAC ±10 % / 50—60 Hz)

Regulated output to motor, Imax 1,5 A

Regulated output to a single-phase AC motor

A Modbus RTU (RS485) signal A

/B Modbus RTU (RS485) signal /B

Connections Cable cross section: max. 2,5 mm2

Start-up

(soft start) duration

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MOUNTING INSTRUCTIONS IN STEPS

Before you start mounting the unit read carefully “Safety and Precautions”.

Then proceed with the following steps:

For inset mounting

1. Disconnect the power supply.

2. Remove the frame cover of the enclosure and take the RDCZ controller out, so

that it can be easily connected.

3. Do the wiring according to the wiring diagram (see Fig. 1).

Fig. 1 Wiring and connections

L NA/B

Power supply

110—230 VAC ±10%

50—60 Hz

Modbus

RTU

Single phase AC Motor

Max 1,5 A

4. Mount the internal enclosure into the wall by inserting suitable connecting

elements into the openings. Mind the correct position and mounting dimensions

shown in Fig. 2 and Fig. 3.

Fig. 2 Mounting dimensions - inset mounting Fig. 3 Mounting position

10 58

Correct Incorrect

5. Put back the frame cover of the enclosure.

6. Switch on the power supply.

7. Customise the factory settings to the desired ones via the 3-button interface,

the 3SModbus software or via the Sensistant.

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 to the wall using the delivered dowels and screws.

Mind the correct position and mounting dimensions shown in Fig. 4 and Fig. 4.

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5. Insert the connecting cables through the grommets of the unit.

Fig. 4 Mounting dimensions - surface mounting Fig. 5 Mounting position

ø4,3

fix

10 38

Correct Incorrect

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.

9. Switch on the power supply.

10.Customise the factory settings to the desired ones via the 3-button interface,

the 3SModbus software or Sensistant.

Optional settings

If your unit is the ﬁrst or the last unit on the Mdbus RTU network (see Example 1 and

Example2), enable the NBT resistor via 3SModbus or the menu of the controller. If

your device is not an end device, leave the NBT disabled (default Modbus setting).

Example 1 Example 2

ТX

NBT

Slave 2

Master

Slave n

Slave 1

Slave 2

Slave 1

ТX

NBT

Master

Slave n

OPERATING INSTRUCTIONS

Choosing the operating mode

To choose the desired operating mode, press the up and down buttons

simultaneously in order to access the Setup mode. e decimal point after the values

indicates that the unit is in Setup Mode.

e display shows “RUN”. To change the run mode, press the button. Use the up

and down buttons to select “1” for automatic mode or “0” - for manual mode.

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To save the selected mode press for 4 seconds. The display will show "888" for a

few second to indicate that the value is stored in the memory. Press the up and

down buttons simultaneously again in order to exit the Setup mode.

■AUTOMATIC MODE:

In Automatic mode the RDCZ is a “master” device, i.e. it needs to be connected to

a sensor via Modbus RTU in order to operate and control the environment based

on the information received by the sensor. If no sensor is connected, the display

will show “...” and the RDCZ will not work. e sensor needs a few seconds in order

to take samples from the environment.

Automatic mode

Modbus RTU max. 1,5 A

RSMFF-2R

Room sensor

RDCZ

Residential fan speed controller AC fan

►Adjustment of parameters:

If necessary, some parameters, such as setpoints, can be adjusted. To do so,

you can either use the 3-button interface to enter the menu mode (see MENU

STRUCTURE below), use the free downloadable 3SModbus software to enter

the Modbus registers from a computer (see Modbus registers maps), or use the

Sensistant conﬁgurator.

►Operating the RDCZ in automatic mode:

e RDCZ can be switched on and oﬀ by pressing and holding the button for 4

seconds. The decimal point on the display indicates that the unit is in Stand-by mode.

When the RDCZZ is operational , you can toggle the display between the value

measured by the sensor and the output value (percentage) by pressing the button.

e automatic output for RDCZ (to obtain the installed setpoint), can be temporarily

overruled by pressing and holding the up button for 4 seconds (See Fig. 6 Overrule

mode below). You can now manually adjust the output to the desired level. After a

predeﬁned period of time (from 10 to 120 minutes), the RDCZ returns to automatic

mode. e setting of this duration is only accessible via Modbus RTU. e I-O

adjustable parameter should be set to “Output”.

Fig. 6 Overrule mode

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■MANUAL MODE:

In Manual mode, the RDCZ operates as a full-featured manual controller for AC

fans.. e output value increases / decreases in the range between the min. and

max. settings (or 0). See the operational diagram. e output can be stepless or

divided into 2—10 equal steps.

Manual mode

max. 1,5 A

RDCZ

Residential fan speed controller AC fan

►Adjustment of parameters:

If necessary, some paramaters, such as the number of steps, can be adjusted.

To do so, you can either use the 3-button interface to enter the menu mode (see

MENU STRUCTURE below), use the free downloadable 3SModbus software to

enter the Modbus registers from a computer (see Modbus registers maps) or use

the Sensistant configurator.

►Operating the RDCZ in manual mode:

e RDCZ can be switched on and oﬀ by pressing and holding the button for 4

seconds. The decimal point on the display indicates that the unit is in Stand-by mode.

To increase the output value or step, use the up button. To decrease the output

value or step, press the down button.

When the number of steps is > 0, you can toggle the display between the number of

steps and the output value (percentage) by pressing the button.

NOTE In manual mode, the RDCZ is a “slave” device. is means that eventually, the

output value can be overridden by a Building Management System.

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MENU STRUCTURE

run 0. – 1.

output–input

0. – 2.00.

50. – 500.

30. – 65.

75. – 100.

0. – 1.

0. – 100.

0. – 1.

2. – 10.

10. – 120.

baudrate

i - o

rAngE

Pro

int

FAn START - uP

START-uP duration

OVerruLe timer

Net Settings

go To bootLoader

RESET To DEFAuLT

PRESS to return PRESS for 8 s

55 Err . . . 23.5 42.5 642 999 0.52

Master

Controller

Output Value %

0 – Slave mode

1 – Stand-alone

(Master) mode

Show input / output

value

Range depends from

connected sensor

Sensor range for

min. to max. output

Low Output Voltage

30 – 65 % Us

High Output Voltage

75 – 100 % Us

0 - Disable PI control

1 – Enable PI control

Kp – Proportional

Ki – Integral

0 - Softstart

1 - Kickstart

Start-up duration (s)

Overrule timer

10 – 120 (min)

baudrate – parity – NBT

In percentage In °C In % rH In ppm In ppmIn ppb

Error in CRC

checking

(Wrong data)

Slave not

connected or

nothing to read Temperature Humidity CO2TVOC

Decrement

value

Increment

value

RDCZ RESIDENTIAL FAN SPEED

CONTROLLER

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