Installation; Settings - YASKAWA Varispeed E7 Instruction Manual And Parameter Description

Installation

Observe the following precautions when installing an Inverter.
Installation in Enclosures
Either install the Inverter in a clean location where it is not subjected to oil mist, dust, and other contaminants,
or install the Inverter in a completely enclosed panel. Provide cooling measures and sufficient panel space so
that the temperature surrounding the Inverter does not go beyond the allowable temperature. Do not install the
Inverter on wood or other combustible materials.
Installation Direction
Mount the Inverter vertically to a wall or other vertical surface.

Settings

Observe the following precautions when making settings for an Inverter.
Upper Limits
The Digital Operator can be used to set high-speed operation up to a maximum of 120 Hz. Incorrect settings
can be dangerous. Use the maximum frequency setting functions to set upper limits. (The maximum output
frequency is factory-set to 50 Hz.)
DC Injection Braking
The motor can overheat if the DC injection braking current or braking time is set to a too large value.
Acceleration/Deceleration Times
The motor's acceleration and deceleration times are determined by the torque generated by the motor, the load
torque, and the load's inertial moment (GD
tion or deceleration, it might be necessary to increase the acceleration or deceleration time.
To reduce the acceleration or deceleration times, increase the capacity of the motor and Inverter.
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/4). If the stall prevention functions are activated during accelera-
Inverter Application Precautions
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