Omron 1S Series - Overload Protection (Electronic Thermal Function)

29 AC Servomotors/Servo Drives 1S-series Instruction Manual
 Wire Sizes for 400-VAC Input Model: R88D-1SANF-ECT
 Wiring to Protective Earth Terminal
Use a round terminal for the protective earth terminal.
 Overload Protection (Electronic Thermal Function)
• Servo Drive memorizes a load ratio after an overload occurs. Therefore, when you run a Ser-
vomotor under the same condition, an overload occurs earlier than when the first overload oc-
curs.
• Overload protection does not have Speed Sensitive.
Item Unit
Model (R88D-1SAN)
10F-ECT 15F-ECT 20F-ECT 30F-ECT
Power supply capacity kVA 2.0 2.1 4.2 5.0
Main circuit power
supply input
Rated current Arms 3.1 4.3 6.5 8.4
Wire size --- 1.5 to 6.0 mm
2
2.5 to 6.0
mm
2
Control circuit
power supply
input
Wire size --- 0.5 to 1.5 mm
2
Motor connection
terminals
Rated current Arms 4.1 4.7 7.8 11.3
Wire size --- 1.5 to 6.0 mm
2
2.5 to 6.0 mm
2
Protective
earth
Wire size --- 2.5 mm
2
or larger
*1
*1. The wire size of protective earth must be greater than or equal to the wire size of main circuit power
supply input.
Screw size --- M4
Tightening
torque
N·m 1.2