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FANUC LTD
DESCRIPTION DESIGN DATE
EDIT
FANUC SERVO AMPLIFIER
βi series DESCRIPTIONS
B-65322EN/02-02
9. Power supply specification
9.1. Three-phase input power supply for motor power
- Nominal rating voltage: 400V to 480VAC
Star connection, neutral grounding
PE is provided on the power line
S
T
G
R
N
- Allowable voltage fluctuation: -15% - +10%
- Frequency: 50/60Hz
- Allowable frequency fluctuation: ±2Hz
- Power supply impedance : Voltage fluctuation by load (at
maximum output) not be exceed 7%.
- Power supply Unbalance: ±5% or less of rated voltage
9.2. Single-phase input for control power
Please be sure to use a regulated power supply for 24V power supply for amplifier.
Common use with 24V power supply for motor brakes cannot be performed.
- Nominal rating voltage: 24VDC
- Allowable voltage fluctuation: ±10% (Including momentary
variations)
- Power supply capacity
Power supply capacity per amplifier
FSSB interface 0.9A