Appendix A.
EMC Standard Installation Guide | VFD-ED
A-11
TT system
TT
: The neutral point (N) of the low voltage transformer and the equipment frames (PE) are connected to a
separate earthing point. The Neutral (N) of the transformer and electrical equipment are connected.
IT system
IT
: The neutral point of the transformer and electrical equipment are not earthed, only the equipment frames PE are
earthed.
In the IT network, the power distribution system Neutral is either not connected to earth or is earthed via high
impedance. In such a system, an insulated monitoring device is used for impedance monitoring.
A built-in filter should be disconnected by the RFI-jumper and an external filter should not be installed when the AC
motor drive or the AC servo motor drive is connected to an IT system.
Содержание VFD-ED Series
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Страница 10: ...Ch01 Introduction VFD ED 1 3 1 2 Model Name 1 3 Serial Number...
Страница 21: ...Ch01 Introduction VFD ED 1 14 Built In Keyboard Panel KPED LE01 Unit mm inch...
Страница 26: ...Ch02 Installation VFD ED 2 5 Ambient Temperature Derating Curve Altitude Derating Curve...
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Страница 28: ...Ch03 Wiring VFD ED 3 1 Chapter 3 Wiring 3 1 Wiring 3 2 System Wiring Diagram...
Страница 30: ...Ch03 Wiring VFD ED 3 3 3 1 Wiring...
Страница 32: ...Ch03 Wiring VFD ED 3 5...
Страница 38: ...Ch04 Main Circuit Terminals VFD ED 4 3 4 1 Main Circuit Diagram Frame B Frames C D Frame E...
Страница 46: ...Ch05 Control Terminals VFD ED 5 3 Frame E Step 1 Step 2 Step 3...
Страница 47: ...Ch05 Control Terminals VFD ED 5 4 5 2 Control Terminal Specifications...
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Страница 93: ...06 Optional Accessories VFD ED 6 42 EMC Filter Model B84143D0075R127 B84143D0090R127 Unit mm inch...
Страница 94: ...06 Optional Accessories VFD ED 6 43 EMC Filter Model B84143D0150R127 Unit mm inch...
Страница 95: ...06 Optional Accessories VFD ED 6 44 EMC Filter Model B84143D0200R127 Unit mm inch...
Страница 96: ...06 Optional Accessories VFD ED 6 45 EMC Filter Model B84142A0042R122 Unit mm inch...
Страница 242: ...Ch12 Descriptions of Parameter Settings VFD ED 12 31 Elevator Timing Diagram...
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Страница 317: ...Ch13 Warning Codes VFD ED 13 4 The page intentionally left blank...
Страница 329: ...Ch14 Fault Codes VFD ED 14 12 The page intentionally left blank...
Страница 351: ...Ch16 Safe Torque Off Function VFD ED 16 10 16 5 6 STL1 Figure 6 16 5 7 STL2 Figure 7...
Страница 353: ...Ch16 Safe Torque Off Function VFD ED 16 12 The page intentionally left blank...
Страница 373: ...Appendix A EMC Standard Installation Guide VFD ED A 20 The page intentionally left blank...
Страница 389: ...Appendix B Revision History VFD ED B 16 The page intentionally left blank...