Chapter 1 Introduction | IED-S
1-9
Asymmetric Ground System (Corner Grounded TN Systems)
Caution:
Do not remove the RFI switch while power to the motor drive input terminal is ON.
In the following four situations, you must remove the RFI switch. This is to prevent the system from
grounding through the RFI capacitor and damaging the motor drive.
Conditions for removing the RFI switch
1. Grounding at a corner in a triangle configuration
L2
L3
L1
2. Grounding at a midpoint in a polygonal
configuration
L2
L3
L1
3. Grounding at one end in a single-phase
configuration
L1
N
4. No stable neutral grounding in a three-phase
autotransformer configuration
L1
L2
L3
L1
L2
L3
Using the RFI switch
In the situation as the diagram on the right shows, you can
use the RFI switch to pass through RFI capacitor to make
an internal grounding and reduce electromagnetic radiation.
In a situation with higher requirements for electromagnetic
compatibility and a symmetrical grounding power system,
you can install an EMC filter. For example, the diagram on
the right is a symmetrical grounding power system.
L2
L3
L1
Summary of Contents for IED-S Series
Page 3: ......
Page 10: ...Chapter 1 Introduction IED S 1 3 1 2 Model Name 1 3 Serial Number...
Page 24: ...Chapter 2 Installation IED S 2 5 Ambient Temperature Derating Curve Altitude Derating Curve...
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Page 32: ...Chapter 3 Wiring IED S 3 7...
Page 36: ...Chapter 3 Wiring IED S 3 11 04 Main Circuit for Drive Control Asynchronous...
Page 38: ...Chapter 3 Wiring IED S 3 13 06 Safety Hatch...
Page 39: ...Chapter 3 Wiring IED S 3 14 07 Brake Circuit...
Page 42: ...Chapter 3 Wiring IED S 3 17 10 Input Contacts of Main Control Board for the Control Panel...
Page 43: ...Chapter 3 Wiring IED S 3 18 11 Output Contacts of Main Control Board for the Control Panel...
Page 44: ...Chapter 3 Wiring IED S 3 19 12 Contacts of Cartop Board OCB...
Page 45: ...Chapter 3 Wiring IED S 3 20 13 Maneuvering Box 1 16 Floor ICB...
Page 46: ...Chapter 3 Wiring IED S 3 21 14 1 Hall Call System...
Page 50: ...Chapter 3 Wiring IED S 3 25 15 Lighting Circuit...
Page 51: ...Chapter 3 Wiring IED S 3 26 16 UCMP Board Three Sensors DZU FL1 and DZD...
Page 52: ...Chapter 3 Wiring IED S 3 27 17 UCMP Board Four Sensors DZU FL1 FL2 and DZD...
Page 67: ...Chapter 5 Control Terminals IED S 5 2 5 1 Control Terminal Specifications...
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Page 116: ...Chapter 6 Optional Accessories IED S 6 43 EMC Filter Model No B84143D0150R127 Unit mm inch...
Page 117: ...Chapter 6 Optional Accessories IED S 6 44 EMC Filter Model No B84143D0200R127 Unit mm inch...
Page 118: ...Chapter 6 Optional Accessories IED S 6 45 EMC Filter Model No B84142A0042R122 Unit mm inch...
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