3 Specifications
3-10
G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
z Main Circuit Terminal Block Specifications
Precautions for Correct UsePrecautions for Correct Use
• Tighten the terminal block screws to the torque of 0.75 N·m (M4) or 1.5 N·m (M5).
• If the torque for terminal block screws exceeds 1.2 N·m (M4) or 2.0 N·m (M5), the terminal
block may be damaged.
• Tighten the fixing screw of the terminal block cover to the torque of 0.2 N·m (M3).
• Tighten the ground screws to the torque of 0.7 to 0.8 N·m (M4) or 1.4 to 1.6 N·m (M5).
• Do not connect any External Regeneration Resistors between B1 and NC.
R88D-KN30H-ECT/R88D-KN50H-ECT
Symbol Name Function
L1 Main circuit power
supply input
R88D-KNH-ECT (3 to 5 kW):
3-phase 200 to 230 VAC (170 to 253 VAC) 50/60 Hz
L2
L3
L1C Control circuit power
supply input
R88D-KNH-ECT : Single-phase 200 to 230 VAC (170 to 253 VAC) 50/60
Hz
L2C
B1 External Regeneration
Resistor connection
terminals
Normally B2 and B3 are shorted. Do not short B1 and B2. Doing so may
result in malfunctioning.
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.
U Motor connection
terminals
Phase U These are the output terminals to the Servomotor.
Be sure to wire them correctly.
V Phase V
W Phase W
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