Omron R88D-KN series User Manual page 136

4 System Design
R88D-KN75F-ECT-L
 Terminal Block Specifications, Left Terminal Block (TB1)
Symbol
L1 Main circuit power supply
input
L2
L3
B1 External Regeneration
Resistor connection
B2
terminals
NC Do not connect.
U Motor connection
terminals
V
W
Frame ground
 Terminal Block Specifications, Right Terminal Block (TB2)
Symbol
24 V Control circuit power
supply input
0 V
DB1 Dynamic Brake Resistor
control terminals
DB2
DB3
DB4
Frame ground
NC Do not connect.
Precautions for Correct Use Precautions for Correct Use
• Tighten the frame ground screw to a torque of 1.4 to 1.6 N·m (M5).
• Tighten the left terminal block screws to a torque of 2.0 to 2.4 N·m (M5). Exceeding the
maximum allowable torque for terminal block screws may cause damage to the terminal block.
• Tighten the fixing screw of the left terminal block cover to a torque of 0.3 to 0.5 N·m (M3).
• Tighten the right terminal block screws to a torque of 1.0 to 1.7 N·m (M5). Exceeding the
maximum allowable torque for terminal block screws may cause damage to the terminal block.
• Tighten the fixing screw of the right terminal block cover to a torque of 0.19 to 0.21 N·m (M3).
• If you are connecting an External Regeneration Resistor, set the Regeneration Resistor
Selection servo parameter object (3016 hex).
• Do not connect any External Regeneration Resistors between B1 and NC.
4-22
Name
3-phase 380 to 480 VAC (323 to 528 VAC) 50/60 Hz
Connect an External Regeneration Resistor between B1 and B2.
Phase U These are the output terminals to the Linear Motor.
Phase V
Phase W
This is the ground terminal. Ground to 100  or less.
Name
24 VDC (20.4 to 27.6 VDC)
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.
Normally DB3 and DB4 are shorted.
When using an externally connected Dynamic Brake Resistor, remove the
short bar from between DB3 and DB4.
This is the ground terminal. Ground to 100  or less.
G5 Series AC Servo Drives With Built-in EtherCAT Communications, Linear Motor Type
Function
Be sure to wire them correctly.
Function