Omron R88D-KN series User Manual page 170

4 System Design
Precautions for Correct Use Precautions for Correct Use
Connect the thermal switch output so that the main circuit power supply is shut OFF when the
contacts open.
When using multiple External Regeneration Resistors, connect each thermal switch in series.
The resistor may be damaged by burning, or cause fire if it is used without setting up a power
supply shutoff sequence using the output from the thermal switch.
R88D-KN75H-ECT-L/-KN150H-ECT-L/-KN75F-ECT-L/-KN150F-ECT-L
If an External Regeneration Resistor is necessary, connect the External Regeneration Resistor
between B1 and B2 as shown in the diagram below.
Servo Drive
B1
B2
Precautions for Correct Use Precautions for Correct Use
Connect the thermal switch output so that the main circuit power supply is shut OFF when the
contacts open.
When using multiple External Regeneration Resistors, connect each thermal switch in series.
The resistor may be damaged by burning, or cause fire if it is used without setting up a power
supply shutoff sequence using the output from the thermal switch.
Combining External Regeneration Resistors
Regeneratio
n absorption
*1
capacity
Model
R88A-RR080100S
Resistance
*2
value
Connection
method
4-56
Thermal switch output
θ >
External Regeneration Resistor
20 W
R88A-RR08050S R88A-RR08050S
R88A-RR080100S
50 /100  25 /50 
R
G5 Series AC Servo Drives With Built-in EtherCAT Communications, Linear Motor Type
40 W 70 W
R88A-RR22047S
R88A-RR22047S1
47 
R R
R
R R
140 W
R88A-RR22047S
R88A-RR22047S1
94 
R R