25
APPENDIX
A.1.2 Low Voltage Directive
We have self-confirmed our inverters as products compliant to the Low Voltage Directive (conforming standard EN 50178)
and place the CE mark on the inverters.
Outline of instructions
앫
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) with delayed actuation or to switch on all three phases simultaneously using a main contactor.
앫
If you do not use a residual current operated protectice device, provide double or reinfo
rced insulation between the
inverter and other equipment, or put a transformer between the main power supply and inverter.
앫
Do not use an earth leakage current breaker as an electric shock protector without connecting the equipment to the
earth. Connect the equipment to the earth securely.
앫
Wire the earth terminal independently. (Do not connect two or more cables to one terminal.)
앫
Use the cable sizes on
under the following conditions.
– Ambient temperature: 40°C maximum
If conditions are different from above, select appropriate wire according to EN60204 Appendix C TABLE 5.
앫
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.
앫
For use as a product compliant with the Low Voltage Directive, use PVC cable whose size is indicated on
앫
Use the moulded case circuit breaker and magnetic contactor which conform to the EN or IEC Standard.
앫
Use the inverter under the conditions of overvoltage category II (usable regardless of the earth condition of the power
supply), overvoltage category III (usable with the earthed-neutral system power supply) and pollution degree 2 or lower
specified in IEC664.
– To use the inverter FR-F740 EC of 00770 or more (IP00) under the conditions of pollution degree 2, install it in the
enclosure of IP 2X or higher.
– To use the inverter FR-F740 EC under the conditions of pollution degree 3, install it in the enclosure of IP54 or higher.
– To use the inverter FR-F740 EC of 00620 or less (IP20) outside of an enclosure in the environment of pollution degree
2, fix a fan cover with fan cover fixing screws enclosed.
앫
On the input and output of the inverter, use cables of the type and size set forth in EN60204 Appendix C.
앫
The operating capacity of the relay outputs (terminal symbols A1, B1, C1, A2, B2, C2) should be 30VDC, 0.3A. (Relay
outputs are basically isolated from the inverter internal circuit.)
앫
Control circuit terminals on
are safely isolated from the main circuit.
Fan cover
fixing screws
Fan cover
fixing screws
Fan cover
fixing screws
Fan cover
Fan cover
Fan cover
Fan
Fan
Fan
00083 to 00126
00170 to 00380
00470, 00620
04320, 04810
05470 or more
Fan cover
fixing screws
Fan cover
Fan
Fan cover
fixing screws
Fan cover
Fan
