Nidec Control Techniques Digitax-SF Series User Manual

12
3. Preparation
Digitax SF Instruction Manual
2. System Wiring
*）Should you use a cable longer than the specication, please contact us in advance.
AC Supply
Control power
Cables
(*)
Please use this product in the power supply environment of Over-Voltage Category Ⅱ dened by
IEC60664-1. This is the AC Supply for drives.
50 W to 750 W Drives：Single-phase AC200 V -10 % to AC240 V +10 %
1 kW to 2 kW Drives ：Three-phase AC200 V -10 % to AC240 V +10 %
Using an overvoltage protection relay is recommended.
When having single-phase power wired to a 1 kW drive, wire the primary circuit AC200 V between the L1
and L3 terminals of the drive.
To avoid unbalance of the three-phase AC200 V wiring in your factory, we recommend that you consider
balance of current in your three-phase wirings.
Conrm that your contract with the electric power company is not limited to use of three-phase.
This is power supply of DC24 V±10 % for drive control power, I/O power and motor brake release power.
Use a SELV (Safety Extra Low Voltage) power supply with reinforced insulation against hazardous voltages. Be
sure to connect a varistor to the motor brake release power supply.
Use of UL wires and cables suitable for motor rated output are recommended.
High-voltage cables and Ground/Earth FG cables:
AWG18 / 600 V breakdown voltage or equivalent for 50 W to 750 W
AWG14 / 600 V breakdown voltage or equivalent for 1 kW to 2 kW
Motor power cables:
AWG18 / 300 V breakdown voltage or equivalent for 50 W to 750 W
AWG14 / 300 V breakdown voltage or equivalent for 1 kW to 2 kW
Encoder cables:
AWG22 and AWG24 compound / 30 V breakdown voltage or equivalent
Shielded cables with twisted pair wires
Length not exceeding 20 m
User I/O cable:
AWG26 / 300 V breakdown voltage or equivalent
Shielded cables with twisted pair wires
Length not exceeding 2 m
Circuit breaker
To protect the power supply line, circuit breakers shut the circuit down in the event of over-current.
Be sure to use an IEC standard and UL-certified circuit breaker between the power supply and the EMC noise
filter. To ensure compliance with EMC, use an earth leakage circuit breaker that we recommend.
Recommended
Product
Fuji Electric Co Ltd
Single-phase：EW32AAG-2P020B
Three-phase：EW32AAG-3P020B
20 A for single-phase (three-phase) 200 V
Leakage current of 30 mA. An equivalent product is acceptable
Select the capacity and other characteristics according to your entire system conguration.
2. Connecting Equipment and Recommended Peripherals
３
Preparation
2. System Wiring

Nidec Control Techniques Digitax-SF Series Specifications

General

Brand	Nidec
Model	Control Techniques Digitax-SF Series
Category	Servo Drives
Language	English