American Magnetics 420 Power Supply Programmer - Manual (Page 20)

2 Rev. 7
Introduction
Features
1.1.4 Flexible Design
The Model 420 Programmer was engineered to be compatible with many
magnet power supplies. From simple single-quadrant supplies, to more
elaborate four-quadrant units, the Model 420 is user-configurable such
that the operational paradigm complies with the specific magnet power
supply system.
1.1.5 Standard Remote Interfaces
The Model 420 Programmer provides an RS-232 (or optional RS-422) serial
port as well as an IEEE-488 parallel port as standard features. In contrast
to other magnet power supply system designs, an expensive additional
analog-to-digital conversion system is not required to collect data via a
host computer. All settings can be controlled via the remote interfaces and
the front panel can be remotely locked to prevent accidental operation. The
Model 420 also provides trigger functions for data collection and/or logging
during operation.
1.1.6 Programmable Safety Features
The Model 420 Programmer is designed to allow the operator to program
the instrument from the front panel or remotely with operational
parameters which must not be exceeded for the given conditions of the
system. Once set, should an operator inadvertently attempt to take the
magnet system to an excessive magnetic field strength or charge at an
excessive voltage, the programmer will not accept the parameter and alert
the operator that a value was rejected because it was outside the user-
defined limits.