3-13
3-1 Servo Drive Specifications
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
  3
Specifications
R88D-KT150H
Terminal Block Specifications, Top Terminal Block (TB1)
Terminal Block Specifications, Bottom Terminal Block (TB2)
Precautions for Correct Use
 Tighten the terminal block screws to the torque of 1.5 N•m (M5) or 2.5 N•m (M6).
 If the torque for terminal block screws exceeds 2.0 N•m (M5) or 3.0 N•m (M6), the terminal block
may be damaged.
 Tighten the fixing screw of the terminal block cover to the torque of 0.4 N•m (M5).
 Tighten the ground screws to the torque of 2.4 to 2.6 N•m (M6).
 Never connect an External Regeneration Resistor between the B1 and N (NC) terminals
Symbol
Name Function
L1C
Control circuit power 
supply input
R88D-KT@H: Single-phase 200 to 230 VAC (170 to 253 V) 50/60 
Hz
280 to 325 VDC (238 to 357 VDC)
L2C
DB1 Dynamic brake 
resistance control 
terminals
These terminals are used to control the MC for externally connected 
dynamic brake resistance. The output contact specifications are 
1 A max. at 300 VAC/100 VDC max. Connect them if required. 
DB2
Symbol
Name Function
L1
Main circuit power supply 
input
R88D-KT@H (15 kW): 3-phase 200 to 230 VAC (170 to 253 V) 50/
60 Hz
280 to 325 VDC (238 to 357 VDC)
L2
L3
B1
External Regeneration 
Resistor connection 
terminals
Connect an External Regeneration Resistor between B1 and B2.
B2
N (NC)
U
Motor connection 
terminals
These are the output terminals to the Servomotor.
Be sure to wire them correctly.
V
W
Frame ground This is the ground terminal. Ground to 100 Ω or less.