06 Optional Accessories | VFD-ED
6-8
6-4 AC / DC Reactor
AC Input Reactor
Installing an AC reactor on the input side of an AC motor drive can increase line impedance, improve
the power factor, reduce input current, increase system capacity, and reduce interference generated from
the motor drive. It also reduces momentary voltage surges or abnormal current spikes. For example,
when the main power capacity is higher than 500 kVA, or when using a switching capacitor bank,
momentary peak voltage and current spikes may damage the AC motor drive’s internal circuit. An AC
reactor on the input side of the AC motor drive protects it by suppressing surges.
Installation
Install an AC input reactor in series between the main power and the three input phases R S T, as shown
in the figure below:
Connecting an AC Input Reactor
DC Reactor
A DC reactor can also increase line impedance, improve the power factor, reduce input current,
increase system power, and reduce interference generated from the motor drive. A DC reactor stabilizes
the DC bus voltage. Compared with an AC input reactor, a DC reactor is in smaller size, lower price, and
lower voltage drop (lower power dissipation).
Installation
Install a DC reactor between ter1(DC+) and +2/B1(DC+). Remove the DC reactor jumper, as
shown in the figure below, before installing a DC reactor.
Summary of Contents for VFD-ED Series
Page 3: ......
Page 10: ...Ch01 Introduction VFD ED 1 3 1 2 Model Name 1 3 Serial Number...
Page 21: ...Ch01 Introduction VFD ED 1 14 Built In Keyboard Panel KPED LE01 Unit mm inch...
Page 26: ...Ch02 Installation VFD ED 2 5 Ambient Temperature Derating Curve Altitude Derating Curve...
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Page 28: ...Ch03 Wiring VFD ED 3 1 Chapter 3 Wiring 3 1 Wiring 3 2 System Wiring Diagram...
Page 30: ...Ch03 Wiring VFD ED 3 3 3 1 Wiring...
Page 32: ...Ch03 Wiring VFD ED 3 5...
Page 38: ...Ch04 Main Circuit Terminals VFD ED 4 3 4 1 Main Circuit Diagram Frame B Frames C D Frame E...
Page 46: ...Ch05 Control Terminals VFD ED 5 3 Frame E Step 1 Step 2 Step 3...
Page 47: ...Ch05 Control Terminals VFD ED 5 4 5 2 Control Terminal Specifications...
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Page 94: ...06 Optional Accessories VFD ED 6 43 EMC Filter Model B84143D0150R127 Unit mm inch...
Page 95: ...06 Optional Accessories VFD ED 6 44 EMC Filter Model B84143D0200R127 Unit mm inch...
Page 96: ...06 Optional Accessories VFD ED 6 45 EMC Filter Model B84142A0042R122 Unit mm inch...
Page 242: ...Ch12 Descriptions of Parameter Settings VFD ED 12 31 Elevator Timing Diagram...
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Page 317: ...Ch13 Warning Codes VFD ED 13 4 The page intentionally left blank...
Page 329: ...Ch14 Fault Codes VFD ED 14 12 The page intentionally left blank...
Page 351: ...Ch16 Safe Torque Off Function VFD ED 16 10 16 5 6 STL1 Figure 6 16 5 7 STL2 Figure 7...
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Page 373: ...Appendix A EMC Standard Installation Guide VFD ED A 20 The page intentionally left blank...
Page 389: ...Appendix B Revision History VFD ED B 16 The page intentionally left blank...