3 Specifications
3-14
G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
z Main Circuit Terminal Block Specifications (TB1)
z Main Circuit Terminal Block Specifications (TB2)
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-KN30F-ECT/R88D-KN50F-ECT
Symbol Name Function
24 V Control circuit power
supply input
24 VDC ± 15%
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 as
required. Normally, do not short B1 and B2. Doing so may result in
malfunctioning.
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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