AMI 420, Installation, Operation And Maintenance Instructions, Page: 69 / 134

Rev. 7
51
Operation
Example Setup
If your magnet, programmer, and power supply were purchased as a
system from AMI, the setup menus are preset by AMI to match the
magnet purchased.
Table 3-4 provides a summary of the Model 420 setup parameters for this
example.
Table 3-4. Example Setup Configuration
Select Power Supply AMI 12100PS
Stability Setting (%) 0.0
Coil Constant
a
(kG/A)
a. Also referred to as the Field-to-Current Ratio. Obtained by
dividing the rated field by the rated current if not explicitly
stated.
1.1806
Current Limit (A) 76.300
PSwitch Installed? YES
PSwitch Current (mA) 46.0
PSwitch Heated Time (sec) 15
Enable Quench Detect? YES
Energy Absorber Present? NO
Programmed Current (A) 76.2300
Voltage Limit (V)
4.000
b
b. Value is the 2 V charge rate plus allowances for power lead
drop at the rated current. If a Model 601 energy absorber is
present, add an additional 5 V to the value.
Ramp Rate (A/sec)
0.2041
c
c. Value is obtained by dividing the charge rate (V) by the
inductance (H).