American Magnetics 05100PS-430-601 High Stability Integrated Power Supply System - Manual (Page 38)

20 Rev. 3
Installation
Power-Up Procedure
overcome the 5 Vdc bias. Once the bias is achieved, the series resistance is
minimal and the Model 601 appears as a short-circuit. It is not possible to
decrease the stability setting to remove the integration time, since once
the 5 Vdc bias is achieved, the load is a short-circuit and the system will
become unstable.
However, when operating with a superconducting magnet in the circuit,
the integration gain of the Model 430 Programmer will be adequate to
quickly “bias” the Model 601 and achieve a proper current ramping profile.
The only time the “integration time” is long is when an energy absorber is
used, and the load is a short circuit.
2.9 Power-Up and Test Procedure
It is important to verify that the magnet system has been properly
connected before the superconducting magnet is energized. This is
especially recommended if the system is to be controlled via a computer
since this setup will allow software debugging without the potential for
damage to the magnet. The following procedures will assist the user in the
verifying key system components.
1. Using the appropriate diagram from section 2.5 as a guide, verify
all system components are connected as shown. If there is any
doubt as to the correct connection of a component, contact an AMI
Technical Support Representative. The user may be required to
properly make a few connections between the various system
components which were disconnected to facilitate packing and
shipping.
2. Temporarily place a short across the magnet current terminals.
Often this is most easily accomplished by unfastening the heavy
cables from the magnet current leads and fastening them together.
1
This will allow rudimentary power supply checks without
energizing the superconducting magnet.
3. Energize the Model 430 Programmer by placing the power switch
in the I (ON) position.
Note
Ensure the Model 601 energy absorber power adapter is properly
connected to the energy absorber and the AC power receptacle.
1. If the system shipped with CamLoc quick-disconnect connectors, they may be quickly dis-
connected from the magnet leads and connected together.