3 Specifications
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AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User’s Manual (I586)
The following tables show the rated current that flows to the terminal block on the Servo Drive and the
applicable wire sizes. Use the wire with the rated voltage of 600 V or higher for the main circuit.
The wire size is determined for when the heat-resistant polyvinyl chloride insulated wire (HIV) is used at
the ambient temperature of 50°C.
Wire Sizes for 100-VAC Input Model: R88D-1SNL-ECT
Terminal Block Wire Sizes
Item Unit
Model (R88D-1SN)
01L-ECT 02L-ECT 04L-ECT
Power supply capacity
kVA 0.4 0.6 1.0
Main circuit power
supply input (L1,
L2, and L3)
*1
*1. Connect between any two phases out of the following: L1, L2, and L3.
Rated cur-
rent
A(rms) 2.9 4.9 8.4
Wire size
---
AWG 20 to 14,
0.5 to 2.0 mm
2
AWG 18 to 14,
0.75 to 2.0 mm
2
AWG 14,
2.0 mm
2
Control circuit
power supply input
(24 V, )
Wire size
---
AWG 20 to 16,
0.5 to 1.5 mm
2
Motor connection
terminals (U, V,
and W)
*2*3
*2. Connect OMRON Power Cables to the motor connection terminals.
*3. Use the wire with the same current capacity for the wiring of the motor connection terminals and for that of B1
and B2.
Rated cur-
rent
A(rms) 1.5 2.5 4.8
Wire size
---
AWG 22 to 14,
0.32 to 2.0 mm
2
AWG 20 to 14,
0.5 to 2.0 mm
2
AWG 18 to 14,
0.75 to 2.0 mm
2
Protective earth Wire size
---
AWG 12,
2.5 mm
2
Screw size
--- M4
Tightening
torque
N·m 1.2
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