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Section 1
General Information
General Information 1-1MN770
Introduction Baldor Electric manufactures several different Drive types for the elevator industry.
These drives are DC SCR (Thyristor), AC Inverter (VVVF) and AC Vector. Each drive
type is best suited for a specific application in the elevator market. This manual provides
information for selection and application of Baldor Drives for use in the elevator industry.
Drive Definition Baldor’s definition of a “Drive” includes both the Motor and the Control.
M
)
C
+
D
Where: M = Motor
C = Control
D = Drive
Because each application is different, Baldor makes it easy to customize drive
characteristics to match the performance requirements of your application.
Programmable flexibility allows Baldor controls to be customized using a standard keypad
interface. This easy to use keypad and 32 character display give you total control of the
drive. This standard interface provides a family of H series products that have a simple,
easy to use, common sense language. These controls have the following characteristics:
1. Common Keypad
2. Common Language
3. Common Commands
4. Common family of expansion boards (I/O Interface)
This Elevator Guide is intended to assist with the following:
1. Selection of the proper drive for an elevator application.
2. Provide help with the set-up of the drive during installation.
Modernizations In the United States, most controls sold for use in elevator applications are for
modernizations. A modernization involves upgrading an existing elevator to meet present
codes and performance levels. In these cases, usually only a control is sold. Existing
motors are used. An encoder feedback device must be added when using Vector
technology. An encoder feedback device must be added if using AC Vector technology.
For existing AC elevators, older two speed motors are connected to an Inverter or Vector
control. For existing DC elevators, a DC motor generator set is replaced by a DC SCR
control. The existing DC motor must be modified to accept an encoder or tachometer
feedback device.