Arrangement And Function Of Control Circuit Terminal Block - Omron M1 Series User Manual

2 Design
Terminal symbol
U
V
W
P1
P(+)
P(+)
DB
P(+)
N(-)
R0, T0
G
2-3-3

Arrangement and Function of Control Circuit Terminal Block

The table below shows the arrangement of the control circuit terminal block, and description and spec-
ifications of each terminal.
Control Circuit Terminal Block
ROA ROB ROC
2-12
Terminal name
Inverter output terminal
DC reactor connection terminal
Braking resistor connection termi-
nal
Regenerative braking unit con-
nection terminal
Control power supply auxiliary in-
put
Ground terminal
PTC +10 AI1 AIC
DO1 DOC DI5 DI6
PIA PIB PIZ DIC
Description
Connect a three-phase motor.
Remove the short-circuit bar between the terminals
P1 and P(+), and connect a DC reactor.
Connect a braking resistor (if a braking torque is re-
quired).
Connect regenerative braking units (if a braking tor-
que is required and that produced by the built-in
braking circuit is insufficient).
To hold a batch alarm signal when the protection
function is activated even if the main power supply
of the inverter is cut off or to display the data dis-
play on the front of the inverter, connect these ter-
minals to the power supply (at a capacity of 1.85
kW or more, for details, refer to 2-3-4 Wiring for
Main Circuit Terminals on page 2-15).
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 con-
nected under type-C grounding conditions.
DI1 DI2 DI3 DI4
DI7 DIC
+24 +24
M1 Series EtherCAT Type User's Manual (I670)
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