American Magnetics 03300PS-430-601 High Stability Integrated Power Supply System - Manual (Page 20)

2 Rev. 5
Introduction
Features
number of keystrokes. The menus are also presented in a logical fashion so
that the operation of the Power Supply System is intuitive to the user.
The provision of a velocity-sensitive rotary encoder on the front panel also
allows the operator to fine-adjust many of the operating parameters of the
magnet system.
1.1.4 Flexibility
The Model 03300PS-430-601 system is configured as a two-quadrant high-
stability power supply system which is able to both supply and remove
electrical energy from the superconducting magnet system. The Power
Supply System was engineered to be compatible with most magnet
systems.
1.1.5 Standard Remote Interfaces
The Power Supply System provides an RS-232 serial port as well as an
Ethernet port as standard features. All settings can be controlled via the
remote interfaces and the front panel can be remotely locked to prevent
accidental operation. The Power Supply System also provides trigger
functions for data collection and/or logging during operation.
1.1.6 Programmable Safety Features
The Power Supply System is designed to be operated from the front panel
of the Programmer 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 will alert the operator that a value was
rejected because it was outside the user-defined limits.
In addition, each setup parameter can be individually selected for locking.
A user-defined password is required to lock or unlock settings. This allows
an administrator to set and password protect any critical parameters that
should not be changed by the operator. Then the administrator can be
confident that an operator will not subsequently change any of these
critical parameters, and yet will be free to change any non-critical
(unlocked) parameters.
1.1.7 Condition-Based Magnet Auto-Rampdown
The Power Supply System can be connected to an AMI Model 13x Liquid
Helium Level Instrument to allow automatic rampdown of the magnet
(even in persistent mode) should the liquid helium (LHe) level drop to a
preset level. This feature ensures the magnet will be protected and not
experience a quench should the LHe level reach an unsafe level for magnet
operation. A single cable is required to use this feature and is covered in