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IND-SFC Series

 

Wiring Precaution 

Whether the capacity of the frequency converter in accordance with your loads.

Whether the frequency converter damaged during transportation, if so, do not connect it to power source.

Shut down power before wiring, check the input voltage before installation.

Make sure the specification of the cable in accordance with the frequency converter before wiring. The

 

cable diameter should follow the voltage level and capacity of the frequency converter.

Please refer to electrician wiring regulations, or following the "Cable Diameter Reference" table.

Avoid sharing the power switch of the frequency converter with other appliances.

Use O-type wiring terminals, make sure it's well-wired, tighten screws to avoid poor contact and prevent

 

electric shock.

Make sure the power source is correct to match single phase or three phase frequency converter.

For grounding, refer to the next page.

Make sure all switches on "OFF" status before connecting the frequency converter to power source.

Make sure the power source, frequency converter and loads are matching before power on.

Internal semiconductor components are sensitive to static electricity, be careful in touching the metal

 

control panel.

Larson Electronics, LLC

 

Phone: (877) 348-9680

 Fax: (903) 498-3364 

  www.larsonelectronics.com 

Grounding System 

In addition to safety consideration, well-grounded system also can avoid the power system interferes

 

equipment normal operation.

Ground Cable should be separated with Neutral Cable, unless special applications.

Ground Cable should be 8AWG cable at least or the diameter is basically the same.

Ground Cable is for specified frequency converter only, poor ground will cause interference to other

 

machines.

Use ground rods in grounding for the best.

Ground Types:

tem Applica

tion

Item

Resistance value

Low voltage power supply system or high voltage electrical 
equipment of three-phase four-wire multi-grounded systems 
grounding  

10

 or less 

Ungrounded high-voltage electrical equipment grounding 
system. 

25

 or less 

Low voltage power supply system of three-phase three-wire 
ungrounded system. 

50

 or less 

1.. round voltage less than 150V is 100

 or less.

2.. round voltage 151V to 300V is 50

 or less.

3.. round voltage higher than 301V is 10

 or less.

1. 

Low voltage electrical equipment grounding

2. 

Inner system grounding

3. 

Frequency converter secondary grounding

4. 

Low voltage electrical equipment metal body 

grounding.

Summary of Contents for IND-SFC Series

Page 1: ...IND SFC Series Larson Electronics LLC Phone 877 348 9680 Fax 903 498 3364 www larsonelectronics com Solid state Frequency Converter Mobile w Wheels Instruction Manual ...

Page 2: ... an appropriate configuration and cable diameter Do not overload the frequency converter to prevent the electric shock or cause fires Please follow all applicable local and national electrical and building code In case of abnormal phenomenon happens follow this user manual in troubleshooting or contact the manufacturer Please keep frequency converter clean and do not put heavy objects on top of it...

Page 3: ...WM technology enhances compact size low noise and high reliability Capable to simulate global voltage frequency power supplies Frequency converters are equipped with electronic circuit instant trip breaker buzzer alarm for over voltage over current over temperature output short circuit protection Checklist Every frequency converter has functional testing before leaving factory the frequency conver...

Page 4: ...utput Air switch Input Terminals Output Terminals Low High Voltage Switch For 30kVA and Above Low High Voltage Indicator For 3 Phase 3kVA to 20kVA Phase Line Voltage Switch For 3 Phase 3kVA to 20kVA Larson Electronics LLC Phone 877 348 9680 Fax 903 498 3364 www larsonelectronics com ...

Page 5: ...or components are sensitive to static electricity be careful in touching the metal control panel Larson Electronics LLC Phone 877 348 9680 Fax 903 498 3364 www larsonelectronics com Grounding System In addition to safety consideration well grounded system also can avoid the power system interferes equipment normal operation Ground Cable should be separated with Neutral Cable unless special applica...

Page 6: ...77 348 9680 Fax 903 498 3364 www larsonelectronics com 3Ø 4W 380V 1Ø 2W 0 300V Capacity Input Max O P Current Output R R S T N G ow Hi Low L L N G 10kVA 4mm2 6mm2 83 2A 41 6A 16mm2 10mm2 15kVA 6mm2 6mm2 125A 62 5A 25mm2 10mm2 20kVA 6mm2 6mm2 166 6A 83 3A 35mm2 10mm2 30kVA 10mm2 10mm2 250A 125A 50mm2 10mm2 45kVA 16mm2 10mm2 375A 187 5A 75mm2 10mm2 50kVA 16mm2 10mm2 416 6A 208 3A 83mm2 10mm2 60kVA 2...

Page 7: ... 30mm2 10mm2 208 3A 104 2A 42mm2 10mm2 90kVA 35mm2 10mm2 250A 125A 50mm2 10mm2 100kVA 50mm2 10mm2 277 7A 138 8A 70mm2 10mm2 120kVA 70mm2 10mm2 333 3A 166 6A 95mm2 10mm2 150kVA 95mm2 10mm2 416 6A 208 3A 120mm2 10mm2 200kVA 120mm2 10mm2 555 5A 277 7A 185mm2 10mm2 300kVA 180mm2 10mm2 833 3A 416 6A 240mm2 10mm2 IND SFC Series Larson Electronics LLC Phone 877 348 9680 Fax 903 498 3364 www larsonelectro...

Page 8: ...ingle Phase Output Three Phase Input Three Phase Output T R S N G U V W N G Input R S T N G L N G L N G L N G Wiring Terminals Output Input Output Input Output IND SFC Series Larson Electronics LLC Phone 877 348 9680 Fax 903 498 3364 www larsonelectronics com ...

Page 9: ...IND SFC Series Larson Electronics LLC Phone 877 348 9680 Fax 903 498 3364 www larsonelectronics com Chapter V Operation Panel Some models may differ slightly in layout ...

Page 10: ...change 0 150V low and 1 300V high base on required voltage 6 Press to POWER ON switch ON 7 Connect loads cable and turn on the AC OUTPUT switch to obtain required standard AC power supplies 8 Frequency converter has overcurrent overload over temperature short circuit instantaneous power off protection and warning indicators In case of above phenomenon happens the protection circuit cut off output ...

Page 11: ...20 8A 41 6A 62 5A 83 3A Load stabilization Rate 1 Frequency Stability 0 01 Harmonic Distortion Pure Sine Wave 2 Frequency meter 4 digit digital frequency meter resolution 0 1Hz Step Voltmeter 4 digit digital voltage meter resolution 0 1V Ammeter 4 digit digital ammeter resolution 0 1A Watt meter 4 digit digital Watt meter resolution 0 1W Protection With overload short circuit over temperature Inst...

Page 12: ...00V High Voltage range Frequency 40 0Hz to 120Hz Higher than 120Hz is customized Current Low grade 83 2A 125A 166 6A 250A 375A 416 6A 500A High grade 41 6A 62 5A 83 3A 125A 187 5A 208 3A 250A Load stabilization Rate 1 Frequency Stability 0 01 Harmonic Distortion Pure Sine Wave 2 Frequency meter 4 digit digital frequency meter resolution 0 1Hz Step Voltmeter 4 digit digital voltage meter resolution...

Page 13: ...z is customized Current Low grade 625A 750A 833 3A 1000A 1250A High grade 312 5A 375A 416 6A 500A 625A Load stabilization Rate 1 Frequency Stability 0 01 Harmonic Distortion Pure Sine Wave 2 Frequency meter 4 digit digital frequency meter resolution 0 1Hz Step Voltmeter 4 digit digital voltage meter resolution 0 1V Ammeter 4 digit digital ammeter resolution 0 1A Protection With overload short circ...

Page 14: ...4A 27 6A 41 6A 55 6A 83 2A 125A 166 6A High grade 4 2A 13 8A 20 8A 27 8A 41 6A 62 5A 83 3A Load stabilization Rate 1 Frequency Stability 0 01 Harmonic Distortion Pure Sine Wave 2 Frequency meter 4 digit digital frequency meter resolution 0 1Hz Step Voltmeter 4 digit digital voltage meter resolution 0 1V Ammeter 4 digit digital ammeter resolution 0 1A Watt meter 4 digit digital Watt meter resolutio...

Page 15: ... 3A 277 7A 333 3A 416 6A 555 5A 833 3A High grade 104 2A 138 8A 166 7A 208 3A 277 7A 416 6A Load stabilization Rate 1 Frequency Stability 0 01 Harmonic Distortion Pure Sine Wave 2 Frequency meter 4 digit digital frequency meter resolution 0 1Hz Step Voltmeter 4 digit digital voltage meter resolution 0 1V Ammeter 4 digit digital ammeter resolution 0 1A Watt meter 4 digit digital Watt meter resoluti...

Page 16: ...pacity of the frequency converter No output voltage 1 Is he fuse burn down or not 2 Is t overloaded 1 heck the fuse and replace the fuse with same specification if necessary 2 eplace a larger capacity frequency converter Voltmeter ammeter and power show 0 when the output frequency is normal 1 Turn the power switch to OFF position 2 hange output voltage switch to zero 3 Turn the power switch to ON ...

Page 17: ...torage The environment of the frequency converter being placed has direct affect to its function and lifetime the environment should follow the conditions Moving Please shut down and disconnect all cables before moving the frequency converter Do not move the frequency converter upside down Handle the frequency converter with care in moving to avoid impact Placement Do not put the frequency convert...

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