3-13
3-1 Driver Specifications
Accurax G5 AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
   3
Specifications
R88D-KT30F/R88D-KT50F
Terminal Block Specifications (TB1) 
Terminal Block Specifications (TB2)
 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).
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-KTxH (3 to 5 kW):
3-phase 200 to 230 VAC (170 to 253 V) 50/60 Hz
L2
L3
B1 External Regeneration 
Resistor connection 
terminals
Normally B2 and B3 are short-circuited.
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.
B2 
B3 
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