Single-Phase Power For 3,000-R/Min (750-W) Servomotors - Omron OMNUC R88D-WT15HF User Manual

Appendix
6-3

Single-phase Power for 3,000-r/min (750-W) Servomotors

When using 3000-r/min (750-W) Servomotors, normally three-phase, 200-VAC power is
required, but these Servomotors can also be operated using single-phase power if the
following conditions are met.
This section describes wiring methods and precautions when using the 3000-r/min
(750-W) Servomotors with a single-phase power supply
H Applicable Servomotors
• 3,000-r/min (750-W) Servomotors: R88M-W75030H and R88M-W75030T
• 3,000-r/min (750-W) Flat Type Servomotors: R88M-WP75030H and R88M-WP75030T
H Applicable Servo Drivers
• Three-phase, 200-VAC power: R88D-WT08H (750 W)
H Wiring
• Connect the main-circuit power supply inputs L1, L2, and L3, as shown in the following diagram.
Note If the above wiring connections are not used, a missing phase detected alarm (A.F1) will occur.
H Power Supply Voltage
• When the R88D-WT08H Servo Driver is used with a three-phase, 200-VAC power supply, the main-
circuit power supply voltage range is 200/230 VAC –15% to +10% (170 to 253 V), 50/60 Hz. With
single-phase power supply, the voltage range is 220/230 VAC –15% to +10% (187 to 253 V), 50/60 Hz.
• When the voltage is lower than 187 VAC (–15% of 220 VAC), an insufficient voltage alarm (A.41) may
occur in the range above the rated output.
• The power supply capacity is 2.1 kVA. The rated current of the main-circuit power supply is 9.4 A (rms).
6-14
Single-phase, 220/230 VAC
R88D-WT08H Servo Driver
Chapter 6