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MIW-STR-4-EN-000 - 09 / 08 / 2018

6 - 8

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3. 

 Pay attention to 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.

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 
to other existing metal surfaces.

Fig. 1 Mounting dimensions 

Fig. 2 Mounting position

A

C

B

E

D

Correct

Incorrect

  50 mm

  50 mm

  75 mm

  50 mm

1

3

2

4

Article code

A

[mm]

B

[mm]

C

[mm]

D

[mm]

E

[mm]

STR-4-15L40

300

325

185

255

255

STR-4-25L40

300

325

185

255

255

STR-4-40L40

300

425

185

255

355

STR-4-60L40

300

425

235

255

355

STR-4-80L40

300

425

235

255

355

STR-4110L40

400

430

235

355

355

STR-4140L50

400

430

235

355

355

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 lines (terminals R, S, T, N and PE);

6.2 

Connect the motor(s) (terminals U, V, W and PE);

6.3 

 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).

ATTENTION

A safety isolator / disconnect switch should be installed on the mains electricity 
side of all motor drives.

ATTENTION

The earth wire (green-yellow) of the electrical supply and of any equipment 
connected to the controller must be connected to the terminals marked as PE. 

STANDARD 3-PHASE 400 VAC 
TRANSFORMER CONTROLLER

STR-4

Содержание STR-4 series

Страница 1: ...Mounting and operating instructions STANDARD 3 PHASE 400 VAC TRANSFORMER CONTROLLER STR 4 ...

Страница 2: ...ARTICLE CODES 4 INTENDED AREA OF USE 4 TECHNICAL DATA 4 STANDARDS 4 OPERATIONAL DIAGRAMS 5 WIRING AND CONNECTIONS 5 MOUNTING AND OPERATING INSTRUCTIONS IN STEPS 5 VERIFICATION OF INSTALLATION 8 TRANSPORT AND STORAGE 8 WARRANTY AND RESTRICTIONS 8 MAINTENANCE 8 STANDARD 3 PHASE 400 VAC TRANSFORMER CONTROLLER STR 4 ...

Страница 3: ...s 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 disconnect the power supply before connecting servicing...

Страница 4: ...10L40 11 0 STR 4140L50 14 0 INTENDED AREA OF USE Speed control of voltage controllable 400 VAC three phase motors pumps and fans For indoor use only TECHNICAL DATA Supply voltage 3x 400 VAC 50 60 Hz Maximum motor current Imax depends on the version see article codes Unregulated output 230 VAC Wide power range 5 step rotary switch for manual control plus off position LED status indication Enclosure...

Страница 5: ...W ATTENTION Make sure you use cables with an appropriate diameter MOUNTING AND OPERATING INSTRUCTIONS IN STEPS Before you start mounting the STR 4 read carefully Safety and Precautions and follow these steps Choose a smooth solid surface for installation a wall panel etc Follow these steps 1 Open the door of the controller Mind the wires that connect the rotary switch with the autotransformer 2 Mo...

Страница 6: ... and bonded to other existing metal surfaces Fig 1 Mounting dimensions Fig 2 Mounting position A C B E D Correct Incorrect 50 mm 50 mm 75 mm 50 mm 1 3 2 4 Article code A mm B mm C mm D mm E mm STR 4 15L40 300 325 185 255 255 STR 4 25L40 300 325 185 255 255 STR 4 40L40 300 425 185 255 355 STR 4 60L40 300 425 235 255 355 STR 4 80L40 300 425 235 255 355 STR 4110L40 400 430 235 355 355 STR 4140L50 400...

Страница 7: ...rmer controller can operate normally consider an isolating switch 12 Turn the knob into the relevant position to adjust the output voltage Optional settings The standard configuration of the output voltages is as indicated in Table 1 below However if more than 5 output voltages are available it is possible to adjust the 5 steps by changing the internal wiring Table 1 Voltage series Knob position 0...

Страница 8: ...ersonal 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 manufactur...

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