Sentera Controls STVS1 Series Manuale di servizio

STVS1 230 VAC TRANSFORMER

CONTROLLER WITH

ANALOGUE INPUT

Mounting and operating instructions

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STVS1 230 VAC TRANSFORMER CONTROLLER WITH

ANALOGUE INPUT

Table of contents

SAFETY AND PRECAUTIONS 3

PRODUCT DESCRIPTION 4

ARTICLE CODES 4

INTENDED AREA OF USE 4

TECHNICAL DATA 4

STANDARDS 4

OPERATIONAL DIAGRAM 5

WIRING AND CONNECTIONS 5

MOUNTING INSTRUCTIONS IN STEPS 6

VERIFICATION OF INSTALLATION 8

TRANSPORT AND STORAGE 9

WARRANTY AND RESTRICTIONS 9

MAINTENANCE 9

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STVS1 230 VAC TRANSFORMER CONTROLLER WITH

ANALOGUE INPUT

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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STVS1 230 VAC TRANSFORMER CONTROLLER WITH

ANALOGUE INPUT

PRODUCT DESCRIPTION

e STVS1 series of transformer fan speed controllers regulate the speed of

single-phase voltage controllable motors in ﬁve steps by varying the output

voltage according to an 0—10 VDC analogue input signal. ey are equipped with

autotransformer(s) and feature TK monitoring for thermal motor protection. e

controllers up to 7,5 A are available in plastic enclosure, while the models above 7,5

A are available in a metal enclosure.

ARTICLE CODES

Article code Rated max. current [A] Fuse [A]

STVS1-15L22 1,5 (5*20 mm) T-2,5 A-H

STVS1-25L22 2,5 (5*20 mm) T-4,0 A-H

STVS1-35L22 3,5 (5*20 mm) T-5,0 A-H

STVS1-50L22 5,0 (5*20 mm) T-8,0 A-H

STVS1-75L22 7,5 (6*32 mm) T-12,5 A-H

STVS1100L22 10,0 (6*32 mm) T-16,0 A-H

STVS1130L22 13,0 (6*32 mm) T-20,0 A-H

INTENDED AREA OF USE

■Fan speed control of voltage controllable motors (pumps and fans) in ventilation

systems

■For indoor use only

TECHNICAL DATA

■Supply voltage: 230 VAC / 50—60 Hz

■Maximum motor current (Imax): 13 A

■Unregulated output: 230 VAC (Imax. 2 A)

■TK monitoring for thermal motor protection

■12 VDC to supply an external device (e.g. potentiometer)

■5 switching levels according to the input signal

■LED status indication

■Enclosure: plastic (R-ABS, UL94-V0, grey RAL 7035) or sheet steel (RAL 7035,

polyester powder coating), depending on the product version

■Protection standard: IP54 (according to EN 60529)

■Operating ambient conditions:

►Temperature: -20—35 °C

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

STANDARDS

■Low Voltage Directive 2014/35/EC

■EMC Directive 2014/30/EC: EN 61326

■WEEE Directive 2012/19/EC

■RoHs Directive 2011/65/EC

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STVS1 230 VAC TRANSFORMER CONTROLLER WITH

ANALOGUE INPUT

OPERATIONAL DIAGRAM

L22 series

Analogue input /

Control signal

U (VAC)/

Speed

04689,5

110

140

170

190

230

Switching levels Up 2; 4; 6; 8; 9,5 VDC

Down Up level — 0,2 VDC

WIRING AND CONNECTIONS

Wiring and connections

LPower supply, phase (230 VAC / 50—60 Hz)

NPower supply, neutral

Pe Earth terminal

L1 Unregulated output, line

N1 Unregulated output, neutral

N1 Regulated output to motor, neutral

URegulated output to motor, line

TK Input - TK monitoring for thermal motor protection

0V Ground

+12V Output 12 VDC / Imax 50 mA

+V* Digital output 12 VDC / Imax 50 mA (0 VDC = TK fault; 12 VDC =

normal operation)

V/C Input U: 0—10 VDC

ATTENTION e total output current for both outputs (+12V and +V) must not exceed

100 mA!

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STVS1 230 VAC TRANSFORMER CONTROLLER WITH

ANALOGUE INPUT

MOUNTING INSTRUCTIONS IN STEPS

Before you start mounting the STVS1, read carefully “Safety and Precautions”and

follow these steps. Choose a smooth solid surface for installation (a wall, panel,

etc.).

Follow these steps:

1. Unscrew the front cover and open the enclosure. Mind the wires that connect the

front cover with the printed circuit board.

2. Fix the unit onto the wall or panel using the provided screws and dowels. Mind the

correct mounting position and unit mounting dimensions. (See Fig. 1 Mounting

dimensions and Fig. 2 Mounting position.)

3. Pay attention to the following instructions in order to minimize the operating

temperature:

3.1 Respect the distances both between the wall / ceiling and the device and

between two devices as shown in Fig. 2. In order to ensure suﬃcient

ventilation of the controller, clearance on every side has to be maintained.

3.2 When installing the device, please keep in mind that the higher you install

it, the warmer the device will get. For example, in a technical room the

correct installation height can be of great importance.

3.3 If maximum ambient temperature cannot be adhered to, please provide

extra forced ventilation / cooling.

Not respecting the abovelisted rules can reduce service life and relieves the

manufacturer of any responsibilities.

For metal enclosures (above 7.5 A)

4. Once secured in position, the mounting screws or bolts should be sealed to

maintain the IP rating of the enclosure.

5. Because the controller enclosure is made of metal, it must be earthed and bonded

Fig. 1 Mounting dimensions Fig. 2 Mounting position

Article code A

[mm] B

[mm] C

[mm] D

[mm] E

[mm]

STVS1-15L22 200 305 140 183 236

STVS1-25L22 200 305 140 183 236

STVS1-35L22 200 305 140 183 236

STVS1-50L22 200 305 140 183 236

STVS1-75L22 200 305 140 183 236

STVS1100L22 300 325 170 255 255

STVS1130L22 300 325 170 255 255

Correct Incorrect

50 mm50 mm

75 mm

50 mm

Wall

6. Insert the cables through the cable glands and do the wiring according to the

wiring diagram (see Fig. 3) while adhering to the information from section

“Wiring and connections” above.

6.1 Connect the power supply line (terminals L, N and Pe);

6.2 Connect the motor(s) (terminals U, N and Pe);

6.3 Connect the 0-10 Volt control signal input (terminals 0V and V/C).

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STVS1 230 VAC TRANSFORMER CONTROLLER WITH

ANALOGUE INPUT

6.4 If applicable, connect the unregulated output (L1 and N). It can be used to

supply a 230 VAC valve, lamp, etc. when the knob is not at ‘0’ position (see

Table 1 below).

6.5 Connect the TK contacts for monitoring of the thermal motor protection

to the motor TK terminals. As standard, there is a bridge between the TK

terminals.

6.6 If applicable, connect the 12 VDC digital output (+V terminal) for fault

indication (0V = TK fault; 12 V = normal operation)

ATTENTION A safety isolator / disconnect switch should be installed on the mains electricity

side of all motor drives.

Fig. 3 Wiring and connections

STVS1xxxL22

Appplication example 1: STVS1 + potentiometer MTP-X10K-NA

230 VAC

OUT

230 VAC

L NPEPEL1

N1 N1 U TK TK

0V +12V +V

V/C

MTP-X10K-NA

Application example 2: STVS1 + sensor (e.g. RCMFF-2R)

MTP-X10K-NA

P-

0K0K

-N

230 VAC

OUT

230 VAC

L NPEPEL1

N1 N1 U TK TK

0V +12V +V

V/C

Make sure the connections are correct before you power the unit.

ATTENTION

7. Close the cover and secure it with the screws.

8. Turn the knob at ‘0’.

9. Tighten the cable glands.

10. Switch on the mains supply.

11. e controller needs to be switched via the external device providing analogue

input signal

12. Make sure the transformer controller can operate normally (consider an isolating

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STVS1 230 VAC TRANSFORMER CONTROLLER WITH

ANALOGUE INPUT

switch).

13. Operate the controller via the external device output voltages.

Optional settings

e standard conﬁguration of the output voltages is as indicated in Table 1 below.

However, because more than 5 output voltages are available, it is possible to adjust

the 5 steps by changing the internal wiring.

Voltage

0—10 VDC

or external

potentiometer

positions (MTV or

MTP)*

0 VDC - 2 VDC 4 VDC 6 VDC 8 VDC 9.5 VDC

Wires -

Regulated output [VAC]

Voltages*** 080** 110 140 170 190 230

Unregulated output [VAC]

L1 0230 230 230 230 230 230

*See also the operational diagram on page 5 for the corresponding voltages.

** Available but not connected.

If more than 5 output voltages are available, it is possible to adjust the 5 steps by changing the internal wiring

VERIFICATION OF INSTALLATION

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

electrical devices.

After connecting the unit to the mains supply, the green LED on its cover should light

up to indicate that the controller is supplied.

Safe operation depends on proper installation. Before start up, ensure the following:

■e mains supply is connected correctly.

■Protection is provided against electrical shock.

■e cables are the appropriate size and fuse-protected.

■ere is suﬃcient air ﬂow around the unit.

e controller is equipped with TK terminals to connect to the thermal contact

integrated in the motor. When actuated (in case of an overheated motor), the

thermal contact cuts the voltage supply to the motor and switches on the red LED

to indicate that it does not work.

ATTENTION e unit is supplied with electrical energy at voltages high enough to inﬂict personal

injury or threat to health. Take the relevant safety measures.

ATTENTION Disconnect and conﬁrm that there is no live current ﬂowing to the unit before servicing.

ATTENTION Avoid exposing the controller to direct sunlight!

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STVS1 230 VAC TRANSFORMER CONTROLLER WITH

ANALOGUE INPUT

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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