![background image](http://html1.mh-extra.com/html/omron/sysdrive-3g3mv-a2001/sysdrive-3g3mv-a2001_user-manual_742837056.webp)
2-24
H
Wiring on the Input Side of the Main Circuit
D
Installing a Molded-case Circuit Breaker
Always connect the power input terminals (R/L1, S/L2, and T/L3) and power supply via a molded case
circuit breaker (MCCB) suitable to the Inverter.
•
Install one wiring circuit breaker per Inverter.
•
Choose an MCCB with the capacity indicated in the previous tables (
Wire Size, Terminal Screw, Tight-
ening Torque, and Molded-case Circuit Breaker Capacities
).
•
For the MCCB’s time characteristics, be sure to consider the Inverter’s overload protection (one min-
ute at 150% of the rated output current).
•
If the MCCB is to be used in common among multiple Inverters, or other devices, set up a sequence
such that the power supply will be turned OFF by a fault output, as shown in the following diagram.
3-phase/
Single-phase
200 V AC
3-phase 400 V AC
Power
supply
Inverter
Fault output (NC)
(See note.)
Note
Use a 400/200 V transformer for a 400-V model.
D
Installing a Ground Fault Interrupter
Inverter outputs use high-speed switching, so high-frequency leakage current is generated.
In general, a leakage current of approximately 100 mA will occur for each Inverter (when the power
cable is 1 m) and approximately 5 mA for each additional meter of power cable.
Therefore, at the power supply input area, use a special-purpose breaker for Inverters, which detects
only the leakage current in the frequency range that is hazardous to humans and excludes high-fre-
quency leakage current.
•
For the special-purpose breaker for Inverters, choose a ground fault interrupter with a sensitivity
amperage of at least 10 mA per Inverter.
•
When using a general leakage breaker, choose a ground fault interrupter with a sensitivity amperage
of 200 mA or more per Inverter and with an operating time of 0.1 s or more.
Design
Chapter 2
Summary of Contents for SYSDRIVE 3G3MV-A2001
Page 1: ...Cat No I527 E1 04 USER S MANUAL SYSDRIVE 3G3MV Multi function Compact Inverter...
Page 2: ......
Page 3: ...USER S MANUAL Multi function Compact Inverter SYSDRIVE 3G3MVSERIES...
Page 18: ......
Page 23: ...Chapter 1 Overview 1 1 Functions 1 2 Nomenclature 1 3 New Features 1...
Page 32: ......
Page 33: ...Chapter 2 Design 2 1 Installation 2 2 Wiring 2...
Page 74: ......
Page 93: ...Chapter 4 Test Run 4 1 Procedure for Test Run 4 2 Operation Example 4...
Page 102: ......
Page 142: ......
Page 242: ......
Page 268: ......
Page 269: ...Chapter 9 Specifications 9 1 Inverter Specifications 9 2 Option Specifications 9...
Page 303: ...Chapter 10 List of Parameters 10...
Page 337: ...Chapter 11 Using the Inverter for a Motor 11...
Page 343: ......
Page 344: ...I527 E1 04...