7 power-up and test procedure, Power-up and test procedure, Installation – American Magnetics 420 Power Supply Programmer User Manual
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Installation
Power-Up Procedure
2.7 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 is 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.
This may be most easily accomplished by unfastening the heavy
cables from the vapor-cooled current leads and fastening them
together. This will allow rudimentary power supply checks without
energizing the superconducting magnet.
3. Energize the Model 420 by placing the power switch in the
, (ON)
position.
4. Enter a stability setting of 100% in the Load setup menu. Refer to
paragraph 3.2.2.1 on page 44 for more information.
5. Energize the power supply.
Note
Also energize the Model 601/610/630 energy absorber unit if
applicable.
6. Verify the various setup menu values for your system (with the
exception of the stability setting). If the Model 420 was purchased
with an AMI magnet, AMI has preset the setup menu values for
proper operation. See paragraph 3.2.5 on page 50 for more
discussion of the setup menu values.
7. Set the ramp rate to 1 A/sec. Refer to paragraph 3.3.1.2 on page 54.
8. Set the programmed current to 10 A. Refer to paragraph 3.3.3 on
9. Initiate ramping to the programmed current by pressing the
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switch (LED indicator on button should extinguish).