Arrangement And Function Of Main Circuit Terminal Block - Omron MX2 Series User Manual

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Arrangement and Function of Main Circuit Terminal Block

The table below shows the arrangement of the main circuit terminal block and description of each terminal.
Main Circuit Terminal Block
R/L1 S/L2 T/L3 +1 P/+ RB
U/T1 V/T2 W/T3 N/-
Terminal
symbol
R/L1 L1
Main power supply input
terminal
S/L2
T/L3 N
U/T1 Inverter output terminal
V/T2
W/T3
+1
DC reactor connection
terminal
P/+
P/+ Braking resistor connec-
tion terminal
RB
P/+ Braking unit connection
terminal
N/−
G Ground terminal
Multi-function Compact Inverter 3G3MX2-EV2 User's Manual (I666-E1)
The terminal arrangement shown on the left is an example
for the inverters with a capacity of 4.0 kW or lower.
Terminal name
Connect the DC input power supply.
For single-phase 200-V type Inverters (Model: 3G3MX2-AB-EV2),
connect these to the L1 and N terminals, respectively.
Connect a 3-phase motor.
Remove the short-circuit bar between the terminals +1 and P/+ (for
switching the inverter's built-in filter function) and connect an optional
DC reactor.
Connect an optional braking resistor (if a braking torque is required).
Connect optional braking units (if a braking torque is required and that
produced by the built-in braking circuit is insufficient).
This is the ground terminal. Connect this terminal to the ground.
200-V class should be connected under type-D grounding conditions;
400-V class should be connected under type-C grounding conditions.
For 200-V class models with a capacity of 3.7 kW or lower and 400-V
class models with a capacity of 4.0 kW or lower, the ground terminal
is located on the cooling fin.
2 Design
Description
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