YASKAWA A1000 Series Technical Manual

8.5 Installing Peripheral Devices
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual 383
Peripheral Devices & Options
8
◆ Connecting an AC or DC Reactor
AC and DC reactors suppress surges in current and improve the power factor on the input side of the drive.
Use a DC reactor or AC reactor or both:
• To suppress harmonic current or improve the power factor of the power supply.
• When using a phase advancing capacitor switch.
• With a large capacity power supply transformer (over 600 kVA).
Note: Use an AC or DC reactor when also connecting a thyristor converter (such as a DC drive) to the same power supply system,
regardless of the conditions of the power supply.
■ Connecting an AC Reactor
Figure 8.11
Figure 8.11 Connecting an AC Reactor
■ Connecting a DC Reactor
A DC reactor can be installed to drive models CIMR-A2A0004 to 0081 and 4A0002 to 0044. When installing a DC
reactor, ensure the jumper between terminals +1 and +2 (terminals are jumpered for shipment) is removed. The jumper
must be installed if no DC reactor is used. Refer to Figure 8.12 for an example of DC reactor wiring.
Figure 8.12
Figure 8.12 Connecting a DC Reactor
◆ Connecting a Noise Filter
■ Reducing Radiated, Conducted, and Induced Noise
Drives generate noise that can potentially affect surrounding devices like PLCs, etc.
• Radiated Noise: Electromagnetic waves noise throughout the radio bandwidth radiated from the drive and cables.
• Conducted Noise: Noise generated by the drive and emitted to through the power lines.
• Induced Noise: Noise generated by electromagnetic induction can affect control signal lines.
Take the following measurements to prevent noise causing malfunction of other drives or devices:
• Install all components on a well grounded metal plate.
• Keep the motor cable as short as possible.
• Use noise filters on the input side of the drive to reduce conducted noise.
• Install noise filters on the input and output side of the drive, install the drive in a metal enclosure panel and use a
shielded motor cable to reduce radiated noise.
A – Power supply C – AC reactor
B – MCCB D – Drive
A – Power supply C – Drive
B – MCCB D – DC reactor
BA
CD
R/L1 U
V
W
X
Y
Z
S/L2
T/L3
Common_
TMonly
A
C
D
R/L1
B
S/L2
T/L3
1+2+
Common_
TMonly

YASKAWA A1000 Series Specifications

General

Series	A1000
Type	AC Drive
Altitude	Up to 1000m without derating
Output Frequency	0-400 Hz
Control Method	V/f Control
Overload Capacity	150% for 60 seconds
Communication Options	Modbus, DeviceNet, Profibus, Ethernet/IP
Ambient Temperature	-10 to 50°C
Storage Temperature	-20 to 60°C
Humidity	5% to 95% (non-condensing)
Enclosure Rating	IP20
Horsepower	0.5 to 1000 HP
Power Range	0.4 - 630 kW (varies by voltage and model)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat
Cooling Method	Fan Cooled
Safety	Safe Torque Off (STO)