Instruction Manual
C
HAPTER
1:
Introduction
How to Use This Manual
This manual describes the function, theory and application of the Electro-Craft MAX-430 servo
drives and provides information related to their performance, operation and maintenance. This
manual is addressed to the customer engineer or technician involved in the installation or main-
tenance of the MAX-430 drive. It is assumed that the reader is trained in the use of mechanical
and electrical test equipment and is familiar with basic servo system maintenance procedures.
Safety
It is necessary to wait at least 60 seconds before working on the drive when main power has
been turned off and auxiliary power is not being supplied to the drive. When there is 24 volts
being supplied to the auxiliary power input, main power will dissipate immediately on power
down. However, if there is no power being supplied to the auxiliary power input, main power
must dissipate through a resistor, and it will take at least 60 seconds before the voltage is at a
safe level.
Introduction to the MAX-430
The “System Functional Diagram” of the Electro-Craft MAX-430 drive is shown on the following
page. MAX-430 series drives are designed to drive permanent magnet, brushtype, DC servo
motors. The drives and motors are intended for use in a broad range of industrial servo appli-
cations, including machine tool and robotic applications, and are used in torque, velocity and
position type servo systems. Each drive is a self-contained unit, ready for mechanical installation
and electrical interconnections to the AC power transformer, motor-tachometer, and controller.
TIP
If replacing a MAX-400 with a MAX-430, refer to Appendix A, “Differences from
the MAX-400” for a list of changes to be aware of.
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