American Magnetics 420 Power Supply Programmer - Manual (Page 36)

18 Rev. 7
Installation
Unipolar Supply with AMI Model 601 Energy Absorber
g. Remote communications via IEEE-488 and/or RS-232 (or optional
RS-422) can be accomplished by connecting suitable cabling to J11
and/or J12, respectively.
2.5.2 Unipolar Supply with AMI Model 601 Energy Absorber
If the Model 420 is to be used in the dual quadrant mode, the magnet
power supply system consists of the Model 420, a unipolar power supply
(typically an AMI Model 12100PS or 12200PS), an AMI Model 601 Energy
Absorber, and associated interconnecting cabling. Figure 2-2 depicts the
Model 12100PS power supply used in conjunction with the Model 601
Energy Absorber and ancillary components.
Connect the cabling in the following manner:
a. Connect the positive (POS) output terminal (1) of the power supply
to the positive (+) terminal (2) of the Model 601 Energy Absorber
using 1/4-20 or similar hardware.
Note
The use of locking hardware is recommended for all high current
connections.
Caution
Do not overtighten the nuts on the current shunt terminals of the
Model 420 and the terminals of the Model 601 (see the torque
specifications on page 7). Overtightening can result in damage to the
terminals.
Warning
Ensure the protective diode remains installed across the output
terminals of the power supply with the anode at the
1(* ative
terminal and the cathode at the 326 itive terminal. Removal of this
protective diode may cause serious injury to personnel and damage
to the power supply under certain loss of power conditions.
b. Connect the negative (
−
) terminal (3) of the Model 601 Energy
Absorber to the positive (+) vapor-cooled current lead (4).
c. Connect the negative (
−
) vapor-cooled current lead (5) to the
positive (+) shunt terminal (6) on the back of the Model 420.
d. Connect the negative (
−
) shunt terminal (7) of the Model 420 to the
negative (NEG) output lug of the power supply (8).