iii
Introduction
This Section describes the applicability of this User Manual
The E7 Drive is a Pulse Width Modulated Drive for AC induction motors. This type of Drive is also known as an Adjustable
Frequency Drive, Variable Frequency Drive, AC Drive, AFD, ASD, VFD, and Inverter. In this manual, the E7 Drive will be
referred to as the “Drive”.
The E7 Drive is a variable torque AC drive, designed specifically for HVAC applications in building automation, including
fans, blowers and pumps. A new benchmark for size, cost, performance, benefits, and quality, the E7 includes numerous
built-in features such as network communications, H/O/A, PI, and energy-savings functions.
The E7 has embedded communications for the popular building automation protocols, Johnson Controls Metasys
®
and
Siemens APOGEE
TM
FLN, as well as Modbus
®
. An optional LONWORKS
®
interface card is also available.
The LCD keypad/operator is equipped with Hand/Off/Auto functions, copy feature, 7 language choices, and 5 lines of display
with 16 characters per line. Optional software allows upload/download, as well as graphing and monitoring of drive
parameters from a PC for ease of drive management. User parameter settings can be recovered at any time via “user initializa-
tion”.
Built-in PI eliminates the need for closed loop output signals from a building automation system. It includes feedback display,
inverse, square root and differential control functions, and maintains setpoint for closed loop control of fans and pumps for
pressure, flow, or temperature regulation.
This manual is applicable to E7 Drives defined by model numbers of CIMR-E7U_ _ _ _ . These models are designed for sale
and use in North and South America.
This manual is subject to change as product improvements occur. The latest version of the manual can be obtained from the
Yaskawa website www.drives.com
. The date shown on the rear cover is changed when revisions are made. The latest version
of Drive software is also shown.
In this manual, some figures portray the product with covers removed for clarity. The Drive should never be operated without
covers installed.
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