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Rev. 6, August 2022

 EXCELLENCE IN MAGNETICS AND CRYOGENICS

American Magnetics, Inc.

P.O. Box 2509, 112 Flint Road, Oak Ridge, TN 37831-2509
Phone: (865) 482-1056

Fax: (865) 482-5472

Internet: http://www.americanmagnetics.com
E-Mail: [email protected]

AMI

AMI MODEL 601 ENERGY ABSORBER

INSTALLATION, OPERATION, AND 

MAINTENANCE INSTRUCTIONS

I.

INTRODUCTION

The AMI Model 601 Energy Absorber is designed to provide a compact, fast-rampdown 

option of up to 5 VDC for AMI power supply systems. The Model 601 is designed to 

operate safely in the event of loss of facility AC power by drawing the necessary power 

for internal cooling from the superconducting magnet. Upon loss of AC power to a 

power supply system, the Model 601 will ramp the system to zero current at a 

discharge rate of approximately 5 VDC.

II.

SPECIFICATIONS @ 25

°

C

AC Input Ratings: . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 to 240 VAC ± 10%, 50/60 Hz, 

100 VA max

DC Input Ratings:. . . . . . . . . . . . . . . . . . . . . . . . . . . 5 VDC ± 5%, 4 A max

Maximum Magnet Operating Current: . . . . . . . . . . 130 A @ 25

°

C, derated linearly to

100 A @ 40

°

C

Nominal Discharge Voltage:. . . . . . . . . . . . . . . . . . . 5.0 VDC ± 2%

Discharge Voltage Temperature Coefficient:  . . . . . ± 150 ppm/

°

C max

Internal Series Resistance:

1

. . . . . . . . . . . . . . . . . . . 2 m

 ± 1 m

 

Rated Operating Temperature: . . . . . . . . . . . . . . . . 0 to 40

°

C @ 100 A,

0 to 25

°

C @ 130 A

Rated Operating Relative Humidity:. . . . . . . . . . . . 0 to 95% non-condensing

Torque Limit on Current Terminals: . . . . . . . . . . . . 50 in-lbs.

1

(nominally adds 200 mV voltage drop at 100 A)

Instruction manual symbol: the product is marked with this symbol when it 

is necessary for you to refer to the instruction manual in order to protect 

against damage to the product or personal injury.

Summary of Contents for 601

Page 1: ...loss of AC power to a power supply system the Model 601 will ramp the system to zero current at a discharge rate of approximately 5 VDC II SPECIFICATIONS 25 C AC Input Ratings 100 to 240 VAC 10 50 60 Hz 100 VA max DC Input Ratings 5 VDC 5 4 A max Maximum Magnet Operating Current 130 A 25 C derated linearly to 100 A 40 C Nominal Discharge Voltage 5 0 VDC 2 Discharge Voltage Temperature Coefficient ...

Page 2: ...front panel to the rail in each of the four corners with mounting hardware supplied by the cabinet manufacturer WARNING The Model 601 must have sufficient cooling air to prevent damage from overheating The cooling air inlets on the front panel and the cooling air outlets on the rear panel must not be obstructed C Install the Model 601 in a magnet power supply system by completing the following ste...

Page 3: ...sitive and negative lugs will be ganged together as illustrated below using a conductive plate Simply follow the installation directions in Step C above by treating each ganged lug as a single output lug The power leads from the supply and to the magnet may be connected to any mounting lug if an additional lug is not provided in the ganged conductive plate In addition to the ganged lugs the coaxia...

Page 4: ...is not energized C If the FAULT LED is energized then one or more of the internal energy absorbing elements has malfunctioned or power has been lost to the rear panel power connector An audible alarm will also sound when the FAULT LED is energized If the unit is in operation proceed immediately to a safe magnet system state typically zero current or a cooled persistent switch in a connected magnet...

Page 5: ... the Model 601 and the AC power cord is also connected to the appropriate power receptacle 2 If the DC power converter is connected properly observe if an internal green LED is energized by looking through the rear panel grating If the green LED is energized then the DC power converter is operating correctly If the green LED is not energized then the DC power converter has failed or AC power to th...

Page 6: ...er warranty and such repair or replacement shall constitute a fulfillment of all AMI liabilities with respect to its products All warranty repairs are F O B Oak Ridge Tennessee USA VIII RETURN AUTHORIZATION Items to be returned to AMI for repair warranty or otherwise require a return authorization number to ensure your order will receive the proper attention Please call an AMI representative at 86...

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