Datasheet
1S servo drive 331
Nomenclature
Name Description
Status indicators The following seven indicators are mounted:
PWR (Green): Displays the status of the control power supply.
ERR (Red): Displays the servo drive error status.
ECAT-RUN (Green) and ECAT-ERR (Red): Displays the EtherCAT communications status.
ECAT-L/A IN (Green) and ECAT-L/A OUT (Green): Lights or flashes according to the status of a link in the EtherCAT
physical layer.
FS (Red/Green): Displays the FSoE communications status.
7-segment display A 2-digit 7-segment display shows error numbers, the servo drive status and other information.
Node address switches Two selector switches (0 to F hex) are used to set the EtherCAT node address.
Charge lamp Lights when the main circuit power supply is turned ON.
EtherCAT communications connectors These connectors (ECAT IN and ECAT OUT) are for EtherCAT communications.
Control I/O and safety connector (CN1) Used for command input signals, I/O signals and the safety device connector. The short-circuit wire is installed on the
safety signals before shipment.
Encoder connector (CN2) Connector for the encoder installed in the servo motor.
USB connector (CN7) USB-Micro B communications connector for the computer. This connector enables USB 2.0 Full Speed (12 Mbps)
communications.
Brake interlock connector (CN12) Used for brake interlock signals.
Main circuit connector (CNA)
*1
*1
Specific connector for 230 V, 100 W to 750 W models.
Connector for the main circuit power supply input, control power supply input, external regeneration resistor and DC
reactor.
Connector for main circuit power supply and
external regeneration resistor (CNA)
*2
*2
Specific connector for 230 V, 1.5 kW model and 400 V, 600 W to 3 kW models.
Connector for the main circuit power supply input and external regeneration resistor.
DC bus connector (CNB) Connector for a DC reactor.
Motor connector (CNC) Connector for the power line to U, V and W phases of the servo motor.
Control power supply connector (CND) Connector for control power supply input.
FG terminals Terminals for FG connection.
■
■
Encoder connector (CN2)
Brake interlock connector (CN12)
Motor connector (CNC)
FG terminal
R
UN
FS
ERR
ERR
PW
R
E
C
AT
I
N
O
UT
C
N
C
C
N
12
C
N2
E
t
h
er
CAT
■
E
C
A
T
O
U
T
CN
1
1
C
N
1
EC
A
T
I
N
C
N
1
0
C
H
A
R
G
E
CN7
I
D
x
1
x
1
6
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
9
A
B
C
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
9
A
B
C
Status indicators
USB connector (CN7)
7-segment display
Control power supply connector (CND)
DC bus connector (CNB)
FG terminal
Status indicators
Control I/O and safety connector (CN1)
Node address switches
Charge lamp
■
Encoder connector (CN2)
Brake interlock connector (CN12)
Motor connector (CNC)
FG terminal
E
C
A
T
P
W
R
E
R
R
F
S
C
H
A
R
GE
L/
A
L/
A
RUN
C
N
10
ECAT IN
CN11
ECAT O
U
T
E
R
R
I
N
O
UT
CN
7
ID
x1
x1
6
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
9
A
B
C
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
9
A
B
C
Status indicators
USB connector (CN7)
7-segment display
Main circuit connector (CNA)
FG t erminal
FG t erminal
Status indicators
Control I/O and safety connector (CN1)
Node address switches
Charge lamp
TOP VIEW
(230 V, 100 W to 750 W models)
BOTTOM VIEW
(230 V, 100 W to 750 W models)
TOP VIEW
(230 V, 1.5 kW model)
(400 V, 600 W to 3 kW models)
BOTTOM VIEW
(230 V, 1.5 kW model)
(400 V, 600 W to 3 kW models)
Connector for main circuit power supply and
external regeneration resistor (CNA)
ECAT IN
connector
ECAT OUT
connector
ECAT IN
connector
ECAT OUT
connector