Omron R88D-KT Series User Manual

4-21
4-2 Wiring
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
4
System Design
R88D-KT75H
Terminal Block Specifications, Left Terminal Block (TB1)
Terminal Block Specifications, Right Terminal Block (TB2)
Precautions for Correct Use
Never connect an External Regeneration Resistor between the B1 and N (NC) terminals
Symbol Name Function
L1
Main circuit power supply
input
R88D-KT@H (7.5 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.
Terminal B1 is main circuit DC output (positive).
B2
N (NC)
U
Motor connection
terminals
These are the output terminals to the Servomotor.
Be sure to wire them correctly.
V
W
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
DB3 Normally DB3 and DB4 are connected. When using an externally
connected Dynamic Brake Resistor, remove the short bar from
between DB3 and DB4.
DB4
Frame ground This is the ground terminal. Ground to 100 Ω or less.

Omron R88D-KT Series Specifications

General

Brand	Omron
Model	R88D-KT Series
Category	Servo Drives
Language	English