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6 special configurations, Installation – American Magnetics 4Q06125PS-430 Integrated Power Supply System User Manual

Page 34

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16

Rev.

5

Installation

Magnets w/o Persistent Switch

c. Connect the negative (−) resistive shunt terminal (5) on the back of

the Model 430 Programmer to the power supply

COMMON

terminal

(6).

d. Connect the DB15 cable from the

PROGRAM OUT

connector (12) on

the back of the Model 430 Programmer to the

ANALOG I/O

connector (7) on the rear of the power supply.

e. Install an instrumentation cable between the magnet support

stand top plate connector (8) and one of the

MAGNET STATION

connectors (14) on the rear of the Model 430 Programmer.

f. Optional: Install an instrumentation cable between one of the

LHe

LEVEL / TEMP

(13) connectors on the rear of the Model 430

Programmer and the Model 13x Liquid Helium Level Instrument

and/or temperature instrument (9). Refer to section A.2 on page

146.

g. Optional: Install an instrumentation cable between the

QUENCH

I/O

connector (11) on the rear of the Model 430 Programmer and

Aux connector

J2

(10) on the rear panel of the Model 13x Liquid

Helium Level Instrument. Refer to section A.5.2 on page 150.

h. Connect each device line cord from the respective device to the

appropriate power receptacle.

i. Remote communications via Ethernet and/or RS-232 can be

accomplished by connecting suitable cabling to the Model 430

Programmer rear panel

ETHERNET

and/or

RS-232

connectors.

2.6 Special Configurations

The Model 430 Programmer has been designed for optimal operation with

a superconducting magnet (i.e. a very low resistance, high inductance

load) with a persistent switch. The Model 430 Programmer is capable of

controlling current to other loads; however, some modification to the

Model 430 Programmer settings and/or connections must usually be made.

Two commonly encountered configurations are: 1) superconducting

magnets without a persistent switch, and 2) operation on a short-circuit or

low resistance load.

2.7 Superconducting Magnets with No Persistent Switch

An external stabilizing resistor for superconducting magnets without a

persistent switch is no longer required

1

. However, these systems do