Sentera Controls MT Service manual

MT ELECTRONIC FAN SPEED

CONTROLLER

Mounting and operating instructions

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MT 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 6

OPERATING INSTRUCTIONS 7

TRANSPORT AND STORAGE 8

WARRANTY AND RESTRICTIONS 8

MAINTENANCE 8

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MT 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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MT ELECTRONIC FAN SPEED

CONTROLLER

PRODUCT DESCRIPTION

e MT controllers provide manual control of the rotational speed of voltage

controllable motors (230 VAC / 50 Hz) by varying the supplied voltage through

phase angle control. ey are suitable for both inset and surface mounting. Several

motors can be connected as long as the current limit is not exceeded. All models

have an extra (unregulated) 230 VAC output.

ARTICLE CODES

Output regulation from minimum to maximum

Code Current range, [A] Fuse, [A] (5*20 mm)

MTY-0-05-AT 0,05—0,5 F-0,63 A-H

MTY-0-15-AT 0,1—1,5 F-2,00 A-H

MTY-0-25-AT 0,2—2,5 F-3,15 A- H

MTY-0-40-AT 0,4—4,0 F-5,00 A-H

Output regulation from maximum to minimum

Code Current range, [A] Fuse, [A] (5*20 mm)

MTX-0-05-AT 0,05—0,5 F-0,63 A-H

MTX-0-15-AT 0,1—1,5 F-2,00 A-H

MTX-0-25-AT 0,2—2,5 F-3,15 A- H

MTX-0-40-AT 0,4—4,0 F-5,00 A-H

INTENDED AREA OF USE

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

■For indoor use only

TECHNICAL DATA

■Inﬁnitely variable fan speed control

■Power supply: 230 VAC ±10 % / 50 Hz

■Unregulated input / output: 230 VAC / max. 2 A

■OFF position can be disabled to obtain continuous operation of the fan

■Regulated output: 80—230 VAC

■Minimum speed adjustment by trimmer

■Speed control:

►MTX – from maximum to minimum

►MTY – from minimum to maximum

■Enclosure:

►External: ASA, white-ivory (RAL9010), IP54 (according to EN 60529)

►Internal: polyamide, white-ivory (RAL9010), IP44 (according to EN 60529)

■Operating ambient conditions:

►temperature: 0—35 °C

►rel. humidity: < 100 % rH (non-condensing)

■Storage temperature: -10—40 °C

STANDARDS

■Low Voltage Directive 2006/95/EC

►EN 60335-1:2012 Household and similar electrical appliances - Safety - Part 1:

General requirements. Amendment A11:2014 and AC:2014 to EN 603351;2012

►EN 61558-1:2005 Safety of power transformers, power supplies, reactors and

similar products - Part 1: General requirements and tests. Amendment A:2006

and A1:2009 to EN 61558-1:2005

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MT ELECTRONIC FAN SPEED

CONTROLLER

■EMC Directive 2004/108/EC: EN 61326

►EN 61000-6-2: 2005 Electromagnetic compatibility (EMC) - Part 6-2: Generic

standards - Immunity for industrial environments. Amendment AC:2005 to EN

61000-6-2:2005

►EN 61000-6-3:2007 Electromagnetic compatibility (EMC) - Part 6-3: Generic

standards - Emission standards for residential, commercial and light-industrial

environments. Amendment A1:2011 and AC:2012 to EN 61000-6-3:2007

■WEEE Directive 2012/19/EU

■RoHs Directive 2011/65/EU

OPERATIONAL DIAGRAMS

MTX series (from maximum to minimum)

OFF position enabled: supply voltage connected to and N OFF position disabled: supply voltage connected to and N

Uout [%]

Umin

range

70 %

Min Max

Off

Switch

20 %

Potentiometer position

Uout [%]

Umin

range

70 %

Min Max

20 %

Potentiometer position

MTY series (from minimum to maximum)

OFF position enabled: supply voltage connected to and N OFF position disabled: supply voltage connected to and N

Uout [%]

Umin

range

70 %

Min Max

Off

Switch

20 %

Potentiometer position

Uout [%]

Umin

range

70 %

Min Max

20 %

Potentiometer position

WIRING AND CONNECTIONS

Power supply (230 VAC ±10 % / 50 Hz)

Unregulated output / input (230 VAC / max. 2 A) to disable OFF

position

NNeutral

Regulated output to motor

Connections Cable cross section: max. 2,5 mm2

ATTENTION To disable the OFF position, connect the 230 VAC supply voltage to the

unregulated output (). In this case do not connect the power supply to: .

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MT ELECTRONIC FAN SPEED

CONTROLLER

MOUNTING INSTRUCTIONS IN STEPS

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

proceed with the following mounting steps:

For inset mounting

1. Remove the knob by turning it to the right until it pops out.

2. Unscrew the loose nut to remove the cover of the external enclosure.

3. Do the wiring according to the wiring diagram (see Fig. 1 “Wiring and connections”).

Fig. 1 Wiring and connections

Minimum

speed

adjustment

trimmer

Fuse holder with a spare fuse

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

shown in Fig. 2. “Mounting dimensions - inset mounting”.

Fig. 2 Mounting dimensions - inset mounting

26 33

50x50

5. Turn on the mains voltage and the controller.

6. Adjust the minimal speed and turn oﬀ the controller.

7. Mount back the cover using the nut.

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

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MT ELECTRONIC FAN SPEED

CONTROLLER

For surface mounting

1. Disconnect the mains supply.

1. Remove the knob by turning it to the right until it pops out.

2. Unscrew the loose nut to remove the cover of the external enclosure.

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

(notincluded) adhering to the mounting dimensions shown in Fig. 3. “Mounting

dimensions - surface mounting”.

Fig. 3 Mounting dimensions - surface mounting

4. Insert the cables through the grommets.

5. Do the wiring according to the wiring diagram (see Fig. 1 “Wiring and connections” ).

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

washers included in the set.

7. Turn on the mains voltage and the controller.

8. Adjust the minimal speed and turn oﬀ the controller.

9. Mount back the cover using the nut.

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

NOTE A 5 mm hole can be drilled at the bottom of the external enclosure to drain the

condensed water.

OPERATING INSTRUCTIONS

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 used should be protected internally against overheating.

e trimmer is adjusted so that the motor does not stop due to mains voltage

variations. 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;

■the fuse of the controller is OK.

In case that the fuse has blown up, remove the knob by turning it to the right, beyond

the end stop and then pull. Open the cover and unscrew the nut. Remove the fuse

holder with the help of a screwdriver. Replace the fuse. Mount all the parts back in

place.

ATTENTION Use only fuses with type and rating speciﬁed above.

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MT ELECTRONIC FAN SPEED

CONTROLLER

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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