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MIW-SDX-DM-EN-000 - 17 / 06 / 2021

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SDX-DM

ELECTRONIC FAN SPEED 
CONTROLLER

OPERATING INSTRUCTIONS

ATTENTION

Use only tools and equipment with non-conducting handles when working on 
electrical devices.

The 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. 
The motor should be protected against overheating.
The minimum output value should be adjusted so that the motor cannot stall at 
minimum speed. The controller restarts after power failure.

In case of faulty operation

Please check if:

 

the right voltage is applied;

 

the controller is not overheated;

 

 the Modbus communication is available;

 

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. The 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.

Summary of Contents for SDX-DM Series

Page 1: ...SDX DM ELECTRONIC FAN SPEED CONTROLLER Mounting and operating instructions ...

Page 2: ...ROLLER 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 8 TRANSPORT AND STORAGE 8 WARRANTY AND RESTRICTIONS 8 MAINTENANCE 8 ...

Page 3: ...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 This 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 dis...

Page 4: ...ed output to motor Umin Us Minimum and maximum output voltage are adjustable via Modbus RTU communication Vmin 20 70 of Us and Vmax 75 100 of Us Overheating protection Operating mode selectable via Modbus RTU from low to high speed or from high to low speed Enclosure External ASA white colour 28049P IP54 protection according to EN 60529 Internal polyamide natural colour IP44 protection according t...

Page 5: ...en output overwrite is enabled the desired output value can be written in Modbus Holding register 13 In that case it is advisable also to activate Modbus safety timeout by writing a value different from 0 in Holding register 8 After the time out period elapses the output is forced to the minimum output value If timeout is set to zero this function is disabled ATTENTION Overheating protection is ac...

Page 6: ...ove 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 inset mounting Fig 1 Wiring and connections Power Supply 230 VAC 50 60 Hz Regulated output to motor Modbus RTU communication Fig 2 Mounting dimensions Inset mount...

Page 7: ...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 64 64 82 89 63 5 82 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 i...

Page 8: ...he controller is not overheated the Modbus communication is available 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 relie...

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