Make sure that the displays on the operation panel have gone out before removing the front cover. Wait at least 20 minutes after turning the input power OFF before starting work.
Always wait at least 20 minutes after turning the input power OFF before starting inspections. It is important that the lead length from filter to inverter and unscreened length of motor output cable be kept as short as possible and that incoming mains and outgoing cables are kept well separated. The screen should be connected to the enclosure body. The earth conductor should be securely earthed at both inverter and motor ends and Connect the motor by means of armoured or screened cable. Connect the filter terminals marked ”LOAD” to the mains supply of the inverter using short lenghts of appropriate gauge cable.ĥ. Connect the incoming mains supply to the filter terminals marked ”lines”, connect any earth cables to the earth stud provided. Both filter and inverter have to be securely mounted.Ĥ. Ensure the best possible earthing of the filter.ģ. Check the filter and inverter rating labels to ensure that the part numbers are correct.Ģ. It should be possible to achieve EMC for the machineryĬontrolled by the inverter by following the guidelines below.ġ. (3) Recommended Installation instructions for Electro Magnetic ComplianceĪn inverter has not intrinsic on its own, but is considered as a component to be installed with other control components. EMC foot print filters can be mounted on the drive’s foot saving space in cabinets, or alternatively along side the drive when the total depth is a problem.ĭetails of Foot print and Stand alone filters are given below. Type 1(*) Provided with 210mm output wiring (No terminals)Įlectromagnetic Compliance with the EN50081 & EN50082 is achieved by using appropriate EMC filters. For braking large inertia loads, ask your supplier for an appropriate resistor. 
Note 1 Recommended resistor is rated for a ED of 10%, with maximum braking time of 20 sec.
The resistance value to obtain a 100% braking torque is shown in Table 7-4. In some cases more than one unit can be wired in parallel, check table 7-2. Choose the unit according table 7-2Ĭonnect the DBR unit as shown in Fig. When carrying out dynamic braking with the unit U2KN11K0S and larger, or U2KX11K0S and larger, an external dynamic braking unit must be used. 7-3ħ-4-2 Units U2KN11K0S and larger, and U2KX11K0S and larger. When using the external DBR resistor, is recommended the use of a thermal relay (76D), to prevent burning as shown in Fig. When using an external DBR, remove the built-in DBR. If the braking torque or ED are insufficient with the above built-in resistor, provide an external resistor wired as shown in Fig.
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