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2-19
2-3 Wiring
2
Design
Installing an AC Reactor
• If the Inverter is connected to a large-capacity power transformer (660 kVA or more) or the phase
advance capacitor is in use, a large peak current may flow through the input power circuit, causing
the converter unit to break down.
• Install an optional AC reactor on the input side of the Inverter. An AC reactor will also improve the
power factor of the power input side.
Installing a Surge Absorber
• Always use a surge absorber or diode when magnetic contactors (MC), electromagnetic relays,
solenoid valves, solenoid, and magnetic brakes are used.
Connecting a Regenerative Braking Unit
When running a load with a large inertia or a vertical axis, regenerative energy will return to the
Inverter.
If overvoltage in the main circuit is generated during deceleration, this indicates that the
regenerative energy exceeds the capacity of the Inverter. In this case, use a regenerative braking
unit.
• When using a regenerative braking unit, be sure to include a sequence whereby the power supply
for the Inverter will be turned off in the event of abnormal overheating. Not doing so may result in
fire.
For a regenerative braking unit: Use the error contact output (MA, MB).
* Terminal symbols for 3G3MX-AE
are indicated in parentheses ( ).
<Braking Resistors and Braking Resistor Units for the Inverter>
Name
Model
Specifications
Regenerative
braking unit
3G3AX-RBU21
3/1-phase
200 V
For general use (with built-in
resistor)
3G3AX-RBU22
For heavy instantaneous
regenerative power (with built-in
resistor)
3G3AX-RBU41
3-phase
400 V
For general use (with built-in
resistor)
Molded case
circuit-breaker
(MCCB)
MC
Power supply
OFF
ON
MC
SA
R/L1 (L1)
S/L2 (L2)
T/L3 (N/L3)
N/-
P/+2
+1
DCL
DC reactor
N
P
P RB R1 R2
MC
XB
SA
MC
MA
MB
Regenerative braking unit
Magnetic contactor
(MC)
Inverter
3G3MX
Summary of Contents for SYSDRIVE 3G3MX-A2002
Page 1: ...Cat No I559 E1 01 USER S MANUAL SYSDRIVE MXSERIES Multi function Compact Inverter...
Page 17: ...Chapter 1 Overview 1 1 Functions 1 1 1 2 Appearance and Names of Parts 1 3...
Page 24: ......
Page 25: ...Chapter 2 Design 2 1 Installation 2 1 2 2 Removing and Mounting Each Part 2 5 2 3 Wiring 2 10...
Page 90: ......
Page 91: ...Chapter 4 Functions 4 1 Monitor Mode 4 1 4 2 Function Mode 4 5...
Page 180: ......
Page 181: ...Chapter 5 Maintenance Operations 5 1 Special Display List 5 1 5 2 Troubleshooting 5 5...
Page 188: ......
Page 189: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 1 6 2 Storage 6 7...
Page 212: ...7 15 7 5 Options 7 Specifications 3G3AX RBU41 95 75 2 5 208 218 5 145 35 100 5...
Page 230: ......
Page 231: ...Appendix Appendix 1 Parameter List App 1 Appendix 2 Product Life Curve App 17...
Page 249: ...INDEX...
Page 252: ......