Sentera Controls SD Service manual

SD ELECTRONIC FAN SPEED

CONTROLLER

Mounting and operating instructions

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SD ELECTRONIC FAN SPEED

CONTROLLER

Table of contents

SAFETY AND PRECAUTIONS 3

PRODUCT DESCRIPTION 4

ARTICLE CODES 4

INTENDED AREA OF USE 4

TECHNICAL DATA 4

STANDARDS 4

OPERATIONAL DIAGRAMS 5

WIRING AND CONNECTIONS 5

MOUNTING INSTRUCTIONS IN STEPS 5

OPERATING INSTRUCTIONS 7

TRANSPORT AND STORAGE 8

WARRANTY AND RESTRICTIONS 8

MAINTENANCE 8

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SD ELECTRONIC FAN SPEED

CONTROLLER

SAFETY AND PRECAUTIONS

Read all the information, the datasheet, Modbus 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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SD ELECTRONIC FAN SPEED

CONTROLLER

PRODUCT DESCRIPTION

ese inﬁnitely variable fan speed controllers allow you to manually adjust the

rotational speed of single phase AC motors by varying the motor voltage through

phase angle control. e integrated AC switch enables or disables the motor.

ARTICLE CODES

Output regulation from low to high

Code Current range [A]

SDY-1-15-DT 1—1,5

SDY-1-30-DT 0,2—3

Output regulation from high to low

Code Current range [A]

SDX-1-15-DT 1—1,5

SDX-1-30-DT 0,2—3

INTENDED AREA OF USE

■Manual control of the motor / fan speed in HVAC applications

■For indoor use only

TECHNICAL DATA

■Supply voltage: 230 VAC / 50—60 Hz

■Regulated output to motor: Umin—Us

■Unregulated output: 230 VAC / max. 2 A

■Minimum speed adjustment by trimmer: 80—180 VAC

■Speed control:

►SDY—from low to high

►SDX—from high to low

■Enclosure:

►External: ASA, white colour (28049P ), IP54 (according to EN 60529)

►Internal: polyamide, natural colour, IP44 (according to EN 60529)

■Operating ambient conditions:

►temperature: 0—40 °C

►rel. humidity: 5—95 % rH (non-condensing)

STANDARDS

■Low Voltage Directive 2014/35/EU

►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/EU:

►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-Immunity forresidential, commercialand lightindustrial environments

►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

■WEEE Direc tive 2012/19/ EU

■RoHs Directive 2011/65/EU

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SD ELECTRONIC FAN SPEED

CONTROLLER

OPERATIONAL DIAGRAMS

SDY: from low to high speed SDX: from high to low speed

Uout [%]

Umin

range

70 %

Min Max

Off

Switch

20 %

Potentiometer position

Uout [%]

Umin

range

70 %

Min Max

Off

Switch

20 %

Potentiometer position

OFF position enabled: supply voltage connected to L1 and N OFF position disabled: supply voltage connected to L1 and N

Uout [%]

Umin

range

60 %

Min Max

Off

Switch

30 %

Potentiometer position

Uout [%]

Umin

range

60 %

Min Max

30 %

Potentiometer position

To disable the OFF position connect the 230 VAC supply voltage to the unregulated

output (L1). In this case, do not connect the power supply to L.

ATTENTION

WIRING AND CONNECTIONS

LPower supply, line (230 VAC ±10 % / 50—60 Hz)

NPower supply, neutral

L1 Unregulated output, line (230 VAC ±10 % / 50—60 Hz, Imax 2 A)

NUnregulated output, neutral

U2 Regulated output to motor, neutral

U1 Regulated output to motor, line

Connections Screw terminal block, pitch 5 mm

maximum cable diameter 2,5 mm²

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SD ELECTRONIC FAN SPEED

CONTROLLER

MOUNTING INSTRUCTIONS IN STEPS

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

follow the steps:

Flush mounting

1. Disconnect the mains supply.

2. Remove the knob by pulling it out.

3. Unscrew the washer to remove the cover of the external enclosure.

4. Do the wiring according to the wiring diagram (see Fig. 1 Wiring and connections).

5. Mount the internal enclosure into the wall according to the mounting dimensions

shown in Fig. 2 Mounting dimensions - ﬂush mounting.

Fig. 1 Wiring and connections

Power Supply:

230 VAC / 50—60 HZ

Unregulated output:

230 VAC ±10 % / 50—60 Hz, Imax 2 A

Regulated output to

motor

Minimum speed

adjustment trimmer

(factory pre set to

100 VAC)

Fig. 2 Mounting dimensions - ush mounting

4x ø 3,5mm

Correct Incorrect

NOTE Mount the unit so that the terminal block and connections are at the lower side.

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SD ELECTRONIC FAN SPEED

CONTROLLER

6. Adjust the Vmin trimmer in order to set the minimum speed. e factory setting

is 100 VAC.

7. Mount back the cover and secure it with the washer.

8. Put back the knob and turn it to oﬀ position.

9. Turn on the power supply.

Surface mounting

1. Disconnect the mains supply.

2. Remove the knob by pulling it out.

3. Unscrew the washer to remove the cover of the external enclosure.

4. Mount the external enclosure onto the surface by means of the screws and dowels

adhering to the mounting dimensions shown in Fig. 3 Mounting dimensions -

surface mounting.

Fig. 3 Mounting dimensions - surface mounting

63,5

Correct Incorrect

5. Insert the cables through the grommets.

6. Do the wiring according to the wiring diagram (see Fig. 1 Wiring and connections).

7. Insert the internal enclosure into the external one and ﬁx it using the screws.

NOTE Mount the unit so that the terminal block and connections are at the lower side.

8. Adjust the Vmin trimmer in order to set the minimum speed. e factory setting

is 100 VAC.

9. Mount back the cover and secure it with the washer.

10. Put back the knob and turn it to oﬀ position.

11. Turn on the power supply.

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SD ELECTRONIC FAN SPEED

CONTROLLER

OPERATING INSTRUCTIONS

ATTENTION Use only tools and equipment with non-conducting handles when working on

electrical devices.

e controller is to be used only with voltage controllable fans/ motors. You can

connect several motors to the controller as long as the current limit is not exceeded.

e motor should be protected against overheating.

e minimum speed trimmer should be adjusted so that the motor cannot stall at

minimum speed. e controller restarts after power failure.

In case of faulty operation

Please check if:

■the right voltage is applied

■all connections are correct

■the machine to be regulated is functioning

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.

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