- 20 -
Chapter 3
Wiring
3.1 Main Circuit Wiring
Please observe the following instructions while wiring the main circuit.
3.1.1 Names and Functions of Main Circuit Terminals
· Do not bundle or run power and signal lines together in the same duct. Keep power and
signal lines separated by at least 300 mm.
· Use twisted-pair shielded wires or multi-core twisted-pair shielded wires for signal and
encoder feedback lines.
· The maximum length is 3 m for reference input lines and is 20 m for encoder feedback lines.
· Do not touch the power terminals for 5 minutes after turning power OFF because high
voltage may still remain in the servodrive.
Terminal
Terminal
Terminal
Terminal
Symbol
Symbol
Symbol
Symbol
Name
Name
Name
Name
Main
Main
Main
Main Circuit
Circuit
Circuit
Circuit
Voltage(V)
Voltage(V)
Voltage(V)
Voltage(V)
ProNet-
ProNet-
ProNet-
ProNet-
Func tions
Func tions
Func tions
Func tions
L1
，
L2
，
L3
Main circuit
power supply
input terminal
200
□□A
Three-phase 200
～
10% -15% (50/60Hz)
400
□□D
Three-phase 380
～
10% -15% (50/60Hz)
U
，
V
，
W
Servomotor
connection
terminals
－
－
Connects to the servomotor.
L1C
，
L2C
Control circuit
power supply
input terminal
200
□□A
Single-phase 200
～
10% -15% (50/60Hz)
400
□□D
Single-phase 380
～
10% -15% (50/60Hz)
Ground terminals
－
－
Connects to the power supply ground terminals and
servomotor ground terminal.
B1
，
B2
，
B3
External
regenerative
resistor
connection
terminal
200
□□A
If use an internal regenerative resistor, please short B2
and B3. Remove the wire between B2 and B3 and
connect an external regenerative resistor(provided by
customer) between B1 and B2, if the capacity of the
internal regenerative resistor is incufficient.
B1
，
B2
400
□□D
Connect an external regenerative resistor between B1
and B2.
+
○1,+
○2
DC reactor for
harmonic
suppression
terminal
200
□□A
Normally short +
○1and +
○2.
If a countermeasure against power supply harmonic
waves is needed, connect a DC reactor between
+
○1and +
○2.
-
○
Main circuit
minus terminal
200
□□A
Normally not connected.
！
C A U T ION
