4 System Design
4-16
G5 Series AC Servo Drives With Built-in EtherCAT Communications, Linear Motor Type
Main Circuit Connector Specifications (CNA)
Motor Connector Specifications (CNB)
External Regeneration Resistor Connector Specifications (CNC)
*1 Do not short B1 and B2. Doing so may result in malfunctioning.
Precautions for Correct UsePrecautions for Correct Use
• Tighten the frame ground screw to a torque of 0.7 to 0.8 N·m (M4).
• If you are connecting an External Regeneration Resistor, set the Regeneration Resistor
Selection servo parameter object (3016 hex).
• Do not connect any External Regeneration Resistors between B1 and NC.
R88D-KN20H-ECT-L
Symbol Name Function
L1 Main circuit power supply
input
3-phase: 200 to 230 VAC (170 to 253 VAC) 50/60 Hz
L2
L3
L1C Control circuit power
supply input
Single-phase 200 to 230 VAC (170 to 253 VAC) 50/60 Hz
L2C
Symbol Name Function
U Motor connection
terminals
Phase U These are the output terminals to the Linear Motor.
Be sure to wire them correctly.
V Phase V
W
Phase W
Frame ground This is the ground terminal. Ground to 100 or less.
Symbol Name Function
B1 External Regeneration
Resistor connection
terminals
*1
Normally short B2 and B3.
If there is high regenerative energy, remove the short-circuit bar between
B2 and B3 and connect an External Regeneration Resistor between B1
and B2.
B3
B2
NC Do not connect.