GE Industrial Solutions AF-600 FP Fan & Pump Drive (230V to 60HP, 460_575V to 125HP) - Manual (Page 9)

1.1 Purpose of the Manual
This manual is intended to provide detailed information for
the installation and start up of the frequency converter.
Chapter 2 Installation provides requirements for
mechanical and electrical installation, including input,
motor, control and serial communications wiring, and
control terminal functions. Chapter 3 Start Up and
Functional Testing provides detailed procedures for start
up, basic operational programming, and functional testing.
The remaining chapters provide supplementary details.
These include user interface, detailed programming,
application examples, start-up troubleshooting, and specifi-
cations.
1.2 Additional Resources
Other resources are available to understand advanced
drive functions and programming.
• The Programming Guide provides greater detail
in how to work with parameters and many
application examples.
• The Design Guide is intended to provide detailed
capabilities and functionality to design motor
control systems.
• Optional equipment is available that may change
some of the procedures described. Be sure to see
the instructions supplied with those options for
specific requirements.
1.3 Product Overview
A drive is an electronic motor controller that converts AC
mains input into a variable AC waveform output. The
frequency and voltage of the output are regulated to
control the motor speed or torque. The drive can vary the
speed of the motor in response to system feedback, such
as changing temperature or pressure for controlling fan,
compressor, or pump motors. The drive can also regulate
the motor by responding to remote commands from
external controllers.
In addition, the drive monitors the system and motor
status, issues warnings or alarms for fault conditions, starts
and stops the motor, optimizes energy efficiency, and
offers many more control, monitoring, and efficiency
functions. Operation and monitoring functions are
available as status indications to an outside control system
or serial communication network.
1.4 Internal Drive Controller Functions
Below is a block diagram of the frequency converter's
internal components. See Table 1.1 for their functions.
Illustration 1.3 Drive Block Diagram
Area Title Functions
1 Mains input • Three-phase AC mains power
supply to the drive
2 Rectifier • The rectifier bridge converts
the AC input to DC current to
supply inverter power
3 DC bus • The frequency converter's
intermediate DC-bus circuit
handles the DC current
4 DC reactors • Filter the intermediate DC
circuit voltage
• Prove line transient protection
• Reduce RMS current
• Raise the power factor
reflected back to the line
• Reduce harmonics on the AC
input
5 Capacitor bank • Stores the DC power
• Provides ride-through
protection for short power
losses
6 Inverter • Converts the DC into a
controlled PWM AC waveform
for a controlled variable
output to the motor
7 Output to motor • Regulated three-phase output
power to the motor
8 Control circuitry • Input power, internal
processing, output, and motor
current are monitored to
provide efficient operation
and control
• User interface and external
commands are monitored and
performed
• Status output and control can
be provided
Table 1.1 Drive Internal Components
Introduction AF-600 FP Operating Instructions
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