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APPENDIX
A.1.2 Low Voltage Directive
We have self-confirmed our inverters as products compliant to the Low Voltage Directive (conforming standard EN 61800-5-1) and
placed the CE mark on the inverters.
Outline of Instructions
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If your application requires by installation standards an RCD (residual current device) as up stream protection please select according
to DIN VDE 0100-530 as following:
Single phase inverter type A or B
Three phase inverter only type B.
– Additionally, when selecting a residual current device (RCD), leakage current caused by the mains filter, the length of the shielded
motor cable and the carrier frequency must be taken into consideration.
– When connecting AC current using switches without a step function, brief asymmetrical loads may result in unwanted
triggering of the residual current device (RCD). It is recommendable here to use a Type B residual current device (RCD) Type B
with delayed actuation or to switch on all three phases simultaneously using a main contactor.
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If you do not use a residual current operated protectice device, provide double or reinforced insulation between the inverter and
other equipment, or put a transformer between the main power supply and inverter.
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Do not use a residual current operated protective device (RCD) as an electric shock protector without connecting the equipment
to the earth. Connect the equipment to the earth securely.
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Wire the earth terminal independently. (Do not connect two or more cables to one terminal.)
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under the following conditions.
– Ambient temperature: 40 °C maximum
– If conditions are different from above, select appropriate wire according to EN 60204 ANNEX C TABLE 5.
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Use a tinned (plating should not include zinc) crimping terminal to connect the earth cable. When tightening the screw, be careful
not to damage the threads.
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For use as a product compliant with the Low Voltage Directive, use PVC cable whose size is indicated on
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Use the moulded case circuit breaker and magnetic contactor which conform to the EN or IEC Standard.
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Use the inverter under the conditions of overvoltage category II (usable regardless of the earth (ground) condition of the power
supply), overvoltage category III (usable with the earthed-neutral system power supply, 400 V class only) specified in IEC664.
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To use the inverter under the conditions of pollution degree 3, install it in the enclosure of IP54 or higher.
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To use the inverter (IP20) outside of an enclosure in the enviroment of pollution degree 2, fix a fan cover with the fan cover
fixing srews enclosed.
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On the input and output of the inverter, use cables of the type and size set forth in EN 60204 Appendix C.
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The operating capacity of the relay outputs (terminal symbols A, B, C) should be 30 V DC, 0.3 A. (Relay outputs are basically
isolated from the inverter internal circuit.)
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Control circuit terminals on
are safely isolated from the main circuit.
Fan cover
fixing screws
Fan cover
Fan
Example for FR-D740-036SC
Example for FR-D740-160SC
Fan connector
Fan cover fixing screw
Fan cover
Fan
Fan connector
FR-D720S-070SC and 100SC, FR-D740-080SC or less
FR-D740-120SC or more
Содержание FR-D720S-008SC
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