4-27
4 System Design
G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
4-2 Wiring
4
4-2-3 Main Circuit and Motor Connections
z Terminal Block Specifications (TB1)
z Terminal Block Specifications (TB2)
Precautions for Correct UsePrecautions for Correct Use
• Do not connect any External Regeneration Resistors between B1 and NC.
R88D-KN30F-ECT/-KN50F-ECT
Symbol Name Function
24 V Control circuit power
supply input
24 VDC (21.6 to 26.4 VDC)
0 V
Symbol Name Function
L1 Main circuit power supply
input
R88D-KNF-ECT (3 to 5 kW):
3-phase 380 to 480 VAC (323 to 528 VAC) 50/60 Hz
L2
L3
B1 External Regeneration
Resistor connection
terminals
A Regeneration Resistor is not built in.
Connect an External Regeneration Resistor between B1 and B2, if
necessary. Normally, do not short B1 and B2. Doing so may result in
malfunctioning.
B3
B2
NC Do not connect.
U Motor connection
terminals
Red These are the output terminals to the Servomotor.
Be sure to wire them correctly.
VWhite
WBlue
Green/
Ye l l o w
Frame ground This is the ground terminal. Ground to 10 Ω or less.
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