![](http://cdn.cncmanuals.com/data/fanuc/267/bgf.png)
3. START-UP PROCEDURE
B–65195EN/01
START-UP PROCEDURE
10
(1) Line voltge
Before connecting the power source to the mchine, check the voltge
of the power source.
Item Specifiction
Three-phase input for
power
Voltage 200/220/230 VAC+10%, –15%
Frequency 50Hz, 60Hz " 2Hz
Voltage deviation due to load (at maximum output)
shall be 7% or less.
Single-phase input for
control power
Voltage 200/220/230 VAC+10%, –15%
Frequency 50Hz, 60Hz " 2Hz
Single-phase input for
ESP of SVUC
Voltage 100VAC +10%, –15%
Frequency 50Hz " 2Hz
OR
Voltage 100/110VAC +10%, –15%
Frequency 60Hz "2Hz)
(2) Power requirements
• The power requirement of the servo amplifier unit is the sum of the
power requirements of individual servo motors.
• When servo motor accelertes or decelertes rapidly, it may require
power twice as much as the continuous rating momentarily. Check on
the input voltage required when more than one servo motor accelertes
or decelertes simultaneously, and keep the voltage above 170 VAC.
• Refer to Chapter 5 of “SERVO AMPLIFIER UNIT Descriptions”
(B-65192EN) for details of the power requirements.
(3) When motor power and control power are input separately from each
other. When supplying motor power and control power separately
from each other, be sure to remove a jumper connecting L1C and L1,
and a jumper connecting L2C and L2. (These jumpers have been
factory-insatlled.)
When it is necessary to make a motor operating with the SVU qualify for
European CE marking, ground the motor using the accessory plate
terminal.
Note that installing more than one protection ground line with single
screw makes it impossible for the motor to qualify for European CE
marking. (See Appendix NO TAG.)
Because the drive circuit for the servo amplifier unit operates by pulse
width modulation control system using IGBTs, high-frequency leakage
current flows from the motor windings and power lines to the ground
through stray capacitance. This leakage current may cause the ground
fault interrupter or leakage protection relay installed in the power line on
the power supply side to malfunction. So they must have a maesure
against influence from inverters so tht they do not malfunction.
3.2
CONNECTING THE
POWER SUPPLY
3.2.1
Confirming the Line
Voltage and Power
Requirements
3.2.2
Connecting to the
Protection Ground
3.2.3
Leakage Current and
Selecting a Ground
Fault Interrupter