u
General Application Precautions
n
Selection
Installing a Reactor
Use an AC reactor or DC link choke in the following situations:
• to suppress harmonic current.
• to smooth peak current that results from capacitor switching.
• when the power supply is above 600 kVA.
• when the drive is running from a power supply system with thyristor converters.
Note:
A DC link choke is built in to drive models 2A0110 to 2A0415 ,4A0058 to 4A0675, and 5A0041 to 5A0242.
4000
600
0
60
400
Drive Capacity (kVA)
Power Supply
Capacity (kVA)
Power supply harmonics
reactor required
Reactor
unnecessary
Figure i.1 Installing a Reactor
Single-Phase Input Selection
The drive is capable of single phase input.
Refer to Main Circuit Connection Diagram on page 77
for connection diagrams
Refer to Single-Phase Derating on page 247
for application instructions and drive current ratings.
Drive Capacity
For specialized motors, make sure that the motor rated current is less than the rated output current for the drive.
When running more than one motor in parallel from a single drive, the capacity of the drive should be larger than [total motor
rated current × 1.1].
n
Installation
Enclosure Panels
Keep the drive in a clean environment by installing the drive in an enclosure panel or selecting an installation area free of
airborne dust, lint, and oil mist. Be sure to leave the required space between drives to provide for cooling, and take proper
measures so the ambient temperature remains within allowable limits and keep flammable materials away from the drive.
Yaskawa offers protective designs for drives that must be used in areas subjected to oil mist and excessive vibration. Contact
Yaskawa or your Yaskawa agent for details.
Installation Direction
NOTICE:
Install the drive upright as specified in the manual.
Refer to Mechanical Installation on page 34
installation. Failure to comply may damage the drive due to improper cooling.
n
Settings
Upper Limits
NOTICE:
The drive is capable of running the motor up to 400 Hz. Be sure to set the upper limit for the frequency of the drive to prevent the
possible danger of accidentally operating equipment at higher than rated speed. The default setting for the maximum output frequency is
60 Hz.
Lower Limits
NOTICE:
Many pumps have a minimum safe operating speed. Be sure to properly set the minimum pump speed in to protect the pump
from damage.
DC Injection Braking
NOTICE:
Excessive current during DC Injection Braking and excessive duration of DC Injection Braking can cause motor overheat.
i.2 General Safety
YASKAWA
TOEP YAIP1W 01A YASKAWA AC Drive - iQpump1000 Quick Start Guide
25
Содержание iQpump1000
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