Sentera Controls SC2A4 User Manual Download

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Mounting and operating instructions

THREE PHASE 400 VAC TWO-SPEED

TRANSFORMER CONTROLLER WITH

TK AND START / STOP

SC2A4

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Summary of Contents for SC2A4

Page 1: ...Mounting and operating instructions THREE PHASE 400 VAC TWO SPEED TRANSFORMER CONTROLLER WITH TK AND START STOP SC2A4 ...

Page 2: ...E 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 8 WARRANTY AND RESTRICTIONS 8 MAINTENANCE 8 THREE PHASE 400 VAC TWO SPEED TRANSFORMER CONTROLLER WITH TK AND START STOP SC2A4 ...

Page 3: ...ssible 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 or repairing ...

Page 4: ...A4 80L55 8 0 SC2A4110L55 11 0 INTENDED AREA OF USE Speed control of voltage controllable 400 V three phase motors pumps and fans For indoor use only TECHNICAL DATA Supply voltage 3x 400 VAC 50 60 Hz Wide power range 1 5 A 11 0 A Unregulated output 230 VAC 2 A Each speed adjustable by 5 step rotary switches knobs plus off position Normally closed contact for external clock high low switching Two st...

Page 5: ...ECTIONS Pe Earth terminals R Power supply 3 400 VAC 50 60 Hz S T N Neutral L1 Unregulated output phase 230 VAC 50 60 Hz 2 A remains powered in standby mode U Regulated output to motor V W N Alarm output 230 VAC 1 A AL TK Input TK monitoring for thermal motor protection TK CC Input normally closed contact for remote ON OFF CC OC Input normally open contact for remote ON OFF OC CL Normally closed co...

Page 6: ...ect 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 ...

Page 7: ... terminal block Control terminal block R S T N L1 U V W 3 x 400 VAC 230 VAC 3 ph N TK TK CC CC OC OC N AL CL CL ATTENTION Make sure the connections are correct before you power the unit 7 Close the cover and secure it with the screws 8 Turn the knobs at 0 9 Tighten the cable glands 10 Switch on the mains supply 11 The controller needs to be switched on via the left knob marked with High 12 Make su...

Page 8: ...h 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...

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