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•
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 sensi-
tivity amperage of 200 mA or more per Inverter and with an operating time of 0.1 s or
more.
D
Installing a Magnetic Contactor
If the power supply of the main circuit is to be shut off because of the sequence, a mag-
netic contactor can be used instead of a molded-case circuit breaker.
When a magnetic contactor is installed on the primary side of the main circuit to stop a
load forcibly, however, the regenerative braking does not work and the load coasts to a
stop.
•
A load can be started and stopped by opening and closing the magnetic contactor on
the primary side. Frequently opening and closing the magnetic contactor, however,
may cause the Inverter to break down.
•
When the Inverter is operated with the Digital Operator, automatic operation cannot be
performed after recovery from a power interruption.
D
Connecting Input Power Supply to the Terminal Block
Input power supply can be connected to any terminal on the terminal block because the
phase sequence of input power supply is irrelevant to the phase sequence (R/L1, S/L2,
and R/L3).
D
Installing an AC Reactor
If the Inverter is connected to a large-capacity power transformer (660 kW or more) or
the phase advance capacitor is switched, an excessive peak current may flow through
the input power circuit, causing the converter unit to break down.
To prevent this, install an optional AC reactor on the input side of the Inverter.
This also improves the power factor on the power supply side.
D
Installing a Surge Absorber
Always use a surge absorber or diode for the inductive loads near the Inverter. These
inductive loads include magnetic contactors, electromagnetic relays, solenoid valves,
solenoid, and magnetic brakes.
Design
Chapter 2
Summary of Contents for SYSDRIVE 3G3JV-AB001
Page 1: ...USER S MANUAL FIRST DRAFT SYSDRIVE 3G3JV Compact Simplified Inverter Cat No I528 E1 1...
Page 3: ...Chapter 1 Overview 1 1 Function 1 2 Nomenclature 1...
Page 9: ...Chapter 2 Design 2 1 Installation 2 2 Wiring 2...
Page 43: ...Chapter 3 Preparing for Operation and Monitoring 3 1 Nomenclature 3 2 Outline of Operation 3...
Page 52: ...3 10 Preparing for Operation and Monitoring Chapter 3...
Page 53: ...Chapter 4 Test Run 4 1 Procedure for Test Run 4 2 Operation Example 4...
Page 62: ...4 10 Test Run Chapter 4...
Page 131: ...7 22 Maintenance Operations Chapter 7...
Page 132: ...Chapter 8 Specifications 8 1 Inverter Specifications 8 2 Option Specifications 8...
Page 138: ...Chapter 9 List of Parameters 9...
Page 150: ...Chapter 10 Using the Inverter for a Motor 10...
Page 165: ...Revision History 10 2...
Page 166: ...Cat No I528 E1 1 SYSDRIVE 3G3JV Compact Simplified Inverter USER S MANUAL...