3-3
3-1 Servo Drive Specifications
3
Specifi
cations
Main Circuit and Servomotor Connector Specifications (CNA and CNB)
R7A-CNB01P Main Circuit Connector (CNA) Specifications
Main Circuit Connector (CNA) Pin Arrangement
R7A-CNB01A Servomotor Connector (CNB) Specifications
Servomotor Connector (CNB) Pin Arrangement
Symbol
Pin No.
Name
Function
L1
10
Main circuit power
supply input terminals
For three-phase 200 V, connect to L1 (pin 10), L2
(pin 8), and L3 (pin 6).
For single-phase 100/200 V, connect to L1 (pin 10)
and L3 (pin 6).
L2
8
L3
6
P
5
External Regeneration
Resistor connection
terminals
If regenerative energy is high, connect an External
Regeneration Resistor.
B1
3
FG
1
Frame ground
This is the ground terminal. Ground to 100
Ω
or less.
Symbol
Pin No.
Name
Color
Function
U
1
Servomotor
connection terminals
Red
These are the output terminals to the Ser-
vomotor. Be careful to wire them correctly.
V
4
White
W
6
Blue
3
Frame ground
Green/
Yellow
Connect the Servomotor FG terminals.
CNA Connector
5
10
1
6
C
N
1
C
N
2
C
N
A
C
N
B
C
N
3
PWR
ALM
CNB Connector
C
N
1
C
N
2
C
N
A
C
N
B
C
N
3
PWR
ALM
3
6
1
4
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