CFW500 | 41
Optional Kits and Accessories
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7 OPTIONAL KITS AND ACCESSORIES
7.1 OPTIONAL KITS
The optional kits are hardware resources added to the inverter in the manufacturing process.
Thus, some models cannot receive all the options presented.
Check the optional kits available for each inverter model in Table 2.2 on page 9.
7.1.1 RFI Filter
Inverters with code CFW500...C... are used to reduce the disturbance conducted from the
inverter to the main power supply in the high frequency band (>150 kHz). It is necessary to
meet the maximum levels of conducted emission of electromagnetic compatibility standards,
such as IEC/EN 61800-3. For further details, refer to Section 3.3 INSTALLATIONS ACCORDING
TO EUROPEAN DIRECTIVE OF ELECTROMAGNETIC COMPATIBILITY on page 25.
ATTENTION!
When inverters with internal RFI filter are used in IT networks (neuter not
grounded or grounded through a high ohmic value resistor), always set the
grounding switch of the capacitors of the internal RFI filter to the NC position
(as shown in Figure A.2 on page 153) for frame sizes A to E or removing the
grounding screws of the internal RFI filter (indicated in Figure A.4 on page
156) for frame size F, since those kinds of network cause damage to the filter
capacitors of the inverter.
7.1.2 Protection Rate Nema1
The inverters with code CFW500...N1 are used when protection rate Nema1 is desired and/or
when metallic conduits are used for the wiring of the inverter.
7.1.3 Safety Functions
The inverters with code CFW500...Y2 are used when functional safety is desired. This module is
mounted on top of the inverter, as described in the CFW500-SFY2 safety manual. The following
safety functions are covered by this module according to IEC/EN 61800-5-2:
STO: Safe Torque Off.
SS1-t: Safe Stop 1 Time Controlled.
NOTE!
For further information on the CFW500 safety functions, refer to the
CFW500-SFY2 safety manual.
7.2 ACCESSORIES
The accessories are hardware resources that can be added in the application. Thus, all models
can receive all the options presented.
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