Application Notes - YASKAWA E1000 Technical Manual

i.2 General Safety
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Notes
Application
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Selection
Installing a Reactor
An AC or DC reactor can be used for the following:
• 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 reactor is built in to the drive models 2A0110 to 2A0415 and 4A0058 to 4A1200.
Figure i.1
Drive Capacity
For specialized motors, make sure that the motor rated current is less than 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 1.1 times of
the total motor rated current.
Starting Torque
The overload rating for the drive determines the starting and accelerating characteristics of the motor. Expect lower
torque than when running from line power. To get more starting torque, use a larger drive or increase both the motor and
drive capacity.
Emergency Stop
When the drive faults out, the output is shut off. This, however, does not stop the motor immediately. Some type of
mechanical brake may be needed if it is necessary to halt the motor faster than the Fast Stop function is able to.
Options
The +1, +2, and +3 terminals are used to connect optional devices. Connect only E1000-compatible devices.
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Installation
Enclosure Panels
Keep the drive in a clean environment by either selecting an area free of airborne dust, lint, and oil mist, or install the
drive in an enclosure panel. Be sure to leave the required space between drives to provide for cooling, and that proper
measures are taken so that the ambient temperature remains within allowable limits. Keep flammable materials away
from the drive. If the drive must be used in an area where it is subjected to oil mist and excessive vibration, protective
designs are available. Contact Yaskawa or your Yaskawa agent for details.
Installation Direction
The drive should be installed upright as specified in the manual. For more information on installation,
Mechanical Installation on page
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Settings
Motor Code
If using OLV/PM designed for permanent magnet motors, make sure that the proper motor code has been set to
parameter E5-01 before performing a trial run.
18
4000
Power supply harmonics
reactor required
Power Supply
Capacity (kVA)
600
0
Figure i.1 Installing a Reactor
44.
YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual
Reactor
unnecessary
60 400
Drive Capacity (kVA)
Refer to