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
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/+2
P/+2 Braking resistor connec-
tion terminal
RB
P/+2 Regenerative braking unit
connection terminal
N/−
G Ground terminal
Multi-function Compact Inverter 3G3MX2-V1 User's Manual (I585-E1)
RB +1 P/+2
N/-
T/L3 U/T1 V/T2 W/T3
Terminal name
Connect the DC input power supply.
For single-phase 200-V type Inverters (Model: 3G3MX2-AB
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/+2, and
connect an optional DC reactor.
Connect an optional braking resistor (if a braking torque is required).
Connect optional regenerative braking units (if a braking torque is
required and that produced by the built-in braking circuit is insuffi-
cient).
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.
The terminal arrangement shown on the left is
an example for the inverters with a capacity of
4.0 kW or lower.
Description
2 Design
2
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