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2-14
2-2 Wiring
2
De
sign
Ground Terminal (G
)
• To prevent electric shock, be sure to ground the Inverter and the motor.
• According to the Electric Apparatus Engineering Regulations, the 200-V class Inverter should be
connected to the grounding electrodes under type-D grounding conditions (conventional type 3
grounding: ground resistance 100
Ω
or less), the 400-V class Inverter should be connected to the
grounding electrodes under type-C grounding conditions (conventional special type 3 grounding:
ground resistance 10
Ω
or less).
• For the ground cable, use the applicable cable or a cable with a larger diameter. Make the cable
length as short as possible.
• When several Inverters are connected, the ground cable must not be connected across several
Inverters, and must not be looped.
Otherwise, the Inverters may malfunction.
Installing Screws in the Main Circuit Terminal Block
• For the main circuit terminal blocks of 3G3RX-A2055/-A2075/-A4055/-A4075, be sure to install
the terminal block screw washers with their grooved sides aligned vertically, as shown below.
Not doing so may result in a contact failure or fire.
(Intended terminals: R/L1, S/L2, T/L3, +1, P/+2, N/-, U/T1, V/T2, W/T3, RB)
Inverter
Inverter
Inverter
Inverter
Inverter
Inverter
Your ground bolt
Terminal block screw washer
Summary of Contents for 3G3RX Series
Page 1: ...Cat No I560 E1 03 USER S MANUAL SYSDRIVE RXSERIES High function General purpose Inverter ...
Page 2: ......
Page 17: ...Chapter 1 Overview 1 1 Functions 1 1 1 2 Appearance and Names of Parts 1 4 ...
Page 22: ......
Page 23: ...Chapter 2 Design 2 1 Installation 2 1 2 2 Wiring 2 6 ...
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Page 337: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 1 ...
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Page 437: ...Index ...
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