Yaskawa SmartTrac AC1 - Manual (Page 13)

SMART TRAC AC1
Technical Manual TM 3554-000 Smart Trac AC1
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2-1
Smart Trac AC1
This Chapter will enable you to:
q
Describe the capabilities of the Smart Trac AC1
q
Become familiar with the ratings and specifications of the
Smart Trac AC1
Overview
The Smart Trac AC1 is a high performance, programmable AC motor drive that
eliminates the need for an external PLC or PC to control a machine or process.
Utilizing the Windows
® environment, Smart Trac Workstation ™ software allows
the Smart Trac AC1 to be programmed efficiently and easily. Each Smart Trac
AC1 can be programmed to fulfill a specific function and purpose using any of
the five IEC-61131-3 programming languages. IEC-61131-3 programming
languages include Relay Ladder Logic (RLL), Structured Text (ST), Sequential
Function Charts (SFC), Function Blocks (FB) or Instruction Lists (IL).
Commonly used function blocks may be obtained from MagneTek's Program
Library. Consult your local MagneTek representative for details.
Smart Trac AC1 offers many means of communications with other control
devices using either the built-in RS-232 port or any of the optional add-on
communication cards. A MagneTek ARCNET card may be used to
communicate with MicroTrac® LAN systems, providing backward
compatibility with existing MagneTek systems. In addition, the Smart Trac AC1
system supports off-the-shelf Ethernet, DeviceNet, Profibus, SDS, Interbus-S,
Fiber Optic and local I/O cards conforming to PC/104 specifications for form
and fit.
The Smart Trac AC1 provides a sine-coded and pulse width modulated three-
phase output with adjustable voltage and frequency. This provides for complete
speed and/or torque control of any conventional squirrel cage induction motor.
Automatic stall prevention and voltage boost prevents nuisance tripping during
load or line side transient conditions. The Smart Trac AC1 will not induce any
voltage line notching distortion back to the utility line and will maintain a
displacement power factor of not less than 0.98 throughout its speed range.
General Capabilities