Installation – American Magnetics 4Q06125PS-430 Integrated Power Supply System User Manual
Page 37
Rev.
5
19
Installation
Power-Up Procedure
magnet, AMI has preset the setup menu values for proper
operation. See sections 3.3, 3.5, 3.9 and 3.10 for more discussion of
the setup menu values and their entry into the Model 430
Programmer.
7. Set the Model 430 Programmer to display current (rather than
field). Refer to sections 3.2.1 and 3.7.5.
8. Set the ramp rate to 1 A/sec. Refer to sections 3.3 on page 25 and
9. Set the target current to 10 A. Refer to sections 3.3 on page 25 and
10. If a Persistent Switch is installed, set the PSw P/S Ramp Rate to 10
A/sec. Refer to paragraph 3.10.2.11 on page 56
11. Initiate ramping to the target current by pressing the
RAMP /
PAUSE
key (status indicator changes from
P
to ).
12. The system should ramp to 10 A in approximately 10 seconds.
Verify this is the case (if a PSwitch is installed and in the cooled
state, ramp time to 10 A should be slightly less than 2 seconds).
13. When the target current is achieved, the
FIELD AT TARGET
LED
will be illuminated. The display should show “
+10.00 A -
”
indicating that the Model 430 Programmer is in the holding mode
at the target current value (+10.00 A).
Note
There may be a discrepancy between the current shown on the power
supply display
1
and the current displayed on the Model 430
Programmer. The current measurement system incorporated in the
Model 430 is more accurate than the power supply shunt.
14. Verify that the power supply output current display indicates that
a total of approximately 10 A is being supplied to the load (which is
only the cabling in this case).
15. Set the target current to the Current Limit value. Refer to section
3.10.2.4 on page 52 to determine the Current Limit value. After the
new target current value is entered, the Model 430 Programmer
should ramp automatically to the new setting.
16. When the new target current value is reached, the power supply
current display (if provided) should also indicate the new value.
1. Not all power supplies have a local current readout.