Sentera Controls RTR-1 Service manual

RTR-1 REMOTE SWITCHED 230 VAC
TRANSFORMER CONTROLLER
Mounting and operating instructions

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RTR-1 REMOTE SWITCHED 230 VAC
TRANSFORMER CONTROLLER
Table of contents
SAFETY AND PRECAUTIONS 3
PRODUCT DESCRIPTION 4
ARTICLE CODE 4
INTENDED AREA OF USE 4
TECHNICAL DATA 4
STANDARDS 4
OPERATIONAL DIAGRAM 5
WIRING AND CONNECTIONS 5
MOUNTING INSTRUCTIONS IN STEPS 5
VERIFICATION OF INSTALLATION 7
TRANSPORT AND STORAGE 8
WARRANTY AND RESTRICTIONS 8
MAINTENANCE 8

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RTR-1 REMOTE SWITCHED 230 VAC
TRANSFORMER CONTROLLER
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 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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RTR-1 REMOTE SWITCHED 230 VAC
TRANSFORMER CONTROLLER
PRODUCT DESCRIPTION
e RTR-1 series of transformer fan speed controllers regulate the rotational speed
of single-phase voltage controllable motors by varying the output voltage. ey
are equipped with an auto-transformer and control the speed manually in steps
via a remote device, e.g. a switch or thermostat. e technology used provides a
regulated output voltage with a perfect sinusoidal shape.
ARTICLE CODE
Article code Rated max. current, [A] Fuse rating
RTR-1-15L22 1,5 (5*20 mm) T-3,15 A-H
RTR-1-25L22 2,5 (5*20 mm) T-4,0 A-H
RTR-1-35L22 3,5 (5*20 mm) T-5,0 A-H
RTR-1-50L22 5,0 (5*20 mm) T-8,0 A-H
RTR-1-75L22 7,5 (6*32 mm) T-12,5 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
■Unregulated output: 230 VAC / 2 A
■Remote fan speed control via external device (e.g. Sentera’s SMT-1-30-4C switch)
■Transformer taps directly connected to the terminal block
■Enclosure: plastic (R-ABS, UL94-V0, grey RAL 7035)
■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 Direc tive 2012/19/EC
■RoHs Directive 2011/65/EC

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RTR-1 REMOTE SWITCHED 230 VAC
TRANSFORMER CONTROLLER
OPERATIONAL DIAGRAM
Operational diagram
Regulated output (U)
Unregulated output (L)
Input from
external device
0123 45
230
190
170
140
110
U [VAC]
L
WIRING AND CONNECTIONS
L Power supply, line (230 VAC / 50—60 Hz)
NPower supply, neutral
LUnregulated output, line
L1 Not connected
NUnregulated output, neutral
Regulated output to motor, neutral
U Regulated output to motor, line
PExternal switch, common
1
External switch, positions
2
3
4
5
ATTENTION Make sure you use cables with an appropriate diameter.
MOUNTING INSTRUCTIONS IN STEPS
Before you start mounting the unit, read carefully “Safety and Precautions”.
Choose a smooth solid surface for installation (a wall, panel, etc.).
Follow these steps:
1. Unscrew the front cover and open the enclosure.
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

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RTR-1 REMOTE SWITCHED 230 VAC
TRANSFORMER CONTROLLER
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.
Fig. 1 Mounting dimensions Fig. 2 Mounting position
B
A
C
BE
D
Article code A
[mm] B [mm] C [mm] D [mm] E [mm]
RTR-1-15L22 170 255 140 155 194
RTR-1-25L22 170 255 140 155 194
RTR-1-35L22 170 255 140 155 194
RTR-1-50L22 170 255 140 155 194
RTR-1-75L22 200 305 140 183 236
Correct Incorrect
50 mm50 mm
75 mm
50 mm
Wall
4. 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.
4.1 Connect the power supply line (terminals L, N and protective earth).
4.2 Connect the motor(s) (terminals U, N and protective earth).
4.3 Connect the external switch (e.g. Sentera’s SMT-1-30-4C) (terminals P and
1, 2, 3, 4, 5 as indicated in Fig. 3 below)
4.4 If applicable, connect the unregulated output (L and N). It can be used to
supply a 230 VAC valve, lamp, etc. e unregulated output is active when
the supply voltage is present.
ATTENTION A safety isolator / disconnect switch should be installed on the mains electricity
side of all motor drives.

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RTR-1 REMOTE SWITCHED 230 VAC
TRANSFORMER CONTROLLER
Fig. 3 Wiring diagram
IN
230 VAC
OUT
230 VAC
LL NL1
N U
P 12
3 45
0
1
2
3
External device - SMT-1-30 - 4C
common
ATTENTION Make sure the connections are correct before you power the unit.
5. Close the cover and secure it with the screws.
6. Tighten the cable glands.
7. Switch on the mains supply.
8. e controller needs to be switched on via the external switch.
9. Make sure the transformer controller can operate normally (consider an isolating
switch).
10. Turn the external switch into the relevant positions to adjust the output voltage.
Optional settings
e standard configuration of the output voltages is as indicated in Table 1 below.
Table 1 Voltage series
Wires -
Regulated output [VAC]
Output voltage** 080*110 140 170 190 230
Unregulated output [VAC]
L230 230 230 230 230 230 230
*Available but not connected.
** Because more than 5 output voltages are available, it is possible to adjust the
steps by changing the internal wiring.
VERIFICATION OF INSTALLATION
ATTENTION A safety isolator / disconnect switch should be installed on the mains electricity
side of all motor drives.
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.

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RTR-1 REMOTE SWITCHED 230 VAC
TRANSFORMER CONTROLLER
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!
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.