10-2
10-2 Preparing for Operation
OMNUC G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
10
Operation
10-2 Preparing for Operation
This section explains the procedure to prepare the mechanical system for operation following
installation and wiring of the motor and drive. It explains items to check both before and after
turning ON the power supply. It also explains the setup procedure required if using a motor with
an absolute encoder.
Items to Check Before Turning ON the Power Supply
Checking Power Supply Voltage
 Check to be sure that the power supply voltage is within the ranges shown below.
 R88D-KNA5L-ECT-R/-KN01L-ECT-R/-KN02L-ECT-R/-KN04L-ECT-R (Single-phase 100-VAC
input)
Main circuit power supply: Single-phase 100 to 120 VAC (85 to 132) 50/60 Hz
Control circuit power supply: Single-phase 100 to 120 VAC (85 to 132) 50/60 Hz
 R88D-KN01H-ECT-R/-KN02H-ECT-R/-KN04H-ECT-R/-KN08H-ECT-R/-KN10H-ECT-R/-KN15H-
ECT-R (Single-phase or single-phase/3-phase 200-VAC input)
Main circuit power supply: Single-phase or single-phase/3-phase 200 to 240 VAC (170 to 264) 50/
60 Hz
Control circuit power supply: Single-phase 200 to 240 VAC (170 to 264) 50/60 Hz
 R88D-KN20H-ECT-R/-KN30H-ECT-R/-KN50H-ECT-R/-KN75H-ECT-R/-KN150H-ECT-R
(3-phase 200 VAC input)
Main circuit power supply: 3-phase 200 to 230 VAC (170 to 253) 50/60 Hz
Control circuit power supply: Single-phase 200 to 230 VAC (170 to 253) 50/60 Hz
 R88D-KN06F-ECT-R/-KN10F-ECT-R/-KN15F-ECT-R/-KN20F-ECT-R/-KN30F-ECT-R/-KN50F-
ECT-R/-KN75F-ECT-R/-KN150F-ECT-R (3-phase 400 VAC input)
Main circuit power supply: 3-phase 380 to 480 VAC (323 to 528)
50/60 Hz
Control circuit power supply: 24 VDC ± 15%
Checking Terminal Block Wiring
 The main circuit power supply inputs (L1/L3 or L1/L2/L3) must be properly connected to the
terminal block.
 The control circuit power supply inputs (L1C/L2C) must be properly connected to the terminal
block.
 The motor's red (U), write (V), and blue (W) power lines and the green/yellow ( ) must be
properly connected to the terminal block.
Checking the Motor
 There should be no load on the motor. (Do not connect the mechanical system.)
 The motor side power lines and the power cables must be securely connected.
Checking the Encoder Wiring
 The encoder cable must be securely connected to the encoder connector (CN2) at the drive.
 The encoder cable must be securely connected to the encoder connector at the motor.
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