AMI 4Q06125PS-430 Installation, Operation And Maintenance Instructions

Four-quadrant power supply systems

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EXCELLENCE IN MAGNETICS AND CRYOGENICS

FOUR-QUADRANT POWER

SUPPLY SYSTEMS

MODELS 4Q06125PS-430, 4Q06250PS-430,

4Q12125PS-430, 4Q1005PS-430 &

4Q1010PS-430

INCLUDING HIGH-STABILITY OPTION &

MULTI-AXIS APPLICATIONS

INSTALLATION, OPERATION, AND

MAINTENANCE INSTRUCTIONS

American Magnetics, Inc.

P.O. Box 2509, 112 Flint Road, Oak Ridge, TN 37831-2509, Tel: 865-482-1056, Fax: 865-482-5472

Rev. 10, August 2021

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Page 1 EXCELLENCE IN MAGNETICS AND CRYOGENICS FOUR-QUADRANT POWER SUPPLY SYSTEMS MODELS 4Q06125PS-430, 4Q06250PS-430, 4Q12125PS-430, 4Q1005PS-430 & 4Q1010PS-430 INCLUDING HIGH-STABILITY OPTION & MULTI-AXIS APPLICATIONS INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS American Magnetics, Inc. P.O. Box 2509, 112 Flint Road, Oak Ridge, TN 37831-2509, Tel: 865-482-1056, Fax: 865-482-5472...
Page 3: Table Of Contents
Model 4Q06125PS-430 Power Supply System ........
Page 4 System Interconnects (Single-Axis Systems) ....... . 22 Four-Quadrant Power Supply System (4Q06125PS-430) ....... . . 23 High-Current, Four-Quadrant Power Supply System (4Q06250PS-430) .
Page 5 MERICAN AGNETICS ABLE OF ONTENTS System Power On/Off Sequence ......... . .49 Model 430 Programmer Power On/Off .
Page 6 MERICAN AGNETICS ABLE OF ONTENTS Setup Submenu Descriptions ..........74 Supply Submenu.
Page 7 MERICAN AGNETICS ABLE OF ONTENTS Standard Event Register ............144 Command Handshaking .
Page 8 MERICAN AGNETICS ABLE OF ONTENTS System Component Routine Maintenance ........197 Model 4Q06125PS Power Supply Routine Maintenance .
Page 9: Foreword
American Magnetics, Inc. high- and low-current Four-Quadrant Power Supply Systems with optional high-stability via a zero flux current sensing system. The user is encouraged to contact an authorized AMI Technical Support Representative for information regarding specific configurations not explicitly covered in this manual.
Page 10: Applicable Hardware
AMI Model 10200PS switching power supply (10 V @ 200 A) AMI Model 08150PS switching power supply (1200 Watt) AMI Model 03300PS (multiple Model 08150PS w/ Energy Absorbers; ±3 V @ 300 A) AMI Model 05100PS (Model 08150PS w/ Energy Absorber; ±5 V @ 100 A) AMI Model 05120PS (Model 08150PS w/ Energy Absorber;...
Page 11: General Precautions
MERICAN AGNETICS OREWORD ENERAL RECAUTIONS Consult with an AMI Technical Support Representative for other approved power supplies. ENERAL RECAUTIONS The two most common cryogenic liquids used in superconducting RYOGEN AFETY magnet systems are nitrogen (LN2) and helium (LHe). Both of these cryogens are extremely cold at atmospheric pressure (321°F and ...
Page 12: Handling Cryogenic Liquids
MERICAN AGNETICS OREWORD ENERAL RECAUTIONS pending the arrival and treatment of a physician or other medical care worker: 1. If any cryogenic liquid contacts the skin or eyes, immediately flush the   affected area gently with tepid water (102°F 105°F, 38.9°C 40.5°C) and then apply cold compresses.
Page 13: Risk Of Explosion
MERICAN AGNETICS OREWORD ENERAL RECAUTIONS lose much of their ductility at low temperatures, they are considered unsatisfactory and sometimes unsafe for these applications. The austenitic Ni-Cr alloys exhibit good ductility at these low temperatures ® and the most widely used is 18-8 stainless steel. Copper, Monel , brass and aluminum are also considered satisfactory materials for cryogenic service.
Page 14: Safety Summary
MERICAN AGNETICS OREWORD AFETY UMMARY fields), eddy currents may be induced in the implant resulting in heat generation. WARNING: iii. Metal materials in someone's body as a result of an old injury may be affected by magnetic fields in this facility. THIS COULD RESULT IN INURY OR DEATH.
Page 15: Safety Legend
MERICAN AGNETICS OREWORD AFETY UMMARY • Signs to indicate that there are potentially hazardous magnetic fields in the area and that cryogens are in use in the area. Instruction manual symbol: the product is marked with this AFETY EGEND 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.
Page 16 MERICAN AGNETICS OREWORD AFETY UMMARY...
Page 17: Introduction
AGNETICS NTRODUCTION Introduction NTEGRATED UADRANT OWER UPPLY YSTEM EATURES The AMI Model 4Q06125PS-430, 4Q06250PS-430, 4Q12125PS-430, 4Q1005PS-430, and 4Q1010PS-430 Power Supply Systems allow an operator manage superconducting magnet system with unprecedented accuracy and ease of use. Integral components of the system include a Model 430 Programmer...
Page 18: High-Stability Option
MERICAN AGNETICS NTRODUCTION NTEGRATED UADRANT OWER UPPLY YSTEM EATURES digital domain which provides for excellent stability and drift of the pro- grammed magnetic field. For greater stability and accuracy, the Model 430 Programmer can be TABILITY configured with a zero-flux precision current measuring device instead of PTION the standard resistive shunt.
Page 19: Condition-Based Magnet Auto-Rampdown
(unlocked) parameters. The Model 430 Programmer can be connected to an AMI Model 1700 ONDITION ASED...
Page 20: Model 4Q06125Ps-430 Power Supply System
A Model 430 Power Supply Programmer and Model 4Q06125PS Power Supply are configured to make up the system designated as 4Q06125PS-430 as shown below. The Model 4Q06125PS is a 750 Watt, ±6 VDC, ±125 A, four-quadrant, voltage and current stabilized DC supply.
Page 21: Model 4Q06250Ps-430 And 4Q12125Ps-430 Power Supply Systems
MERICAN AGNETICS NTRODUCTION UADRANT YSTEMS ENERAL ESCRIPTION 4Q06250PS-430 4Q12125PS-430 P ODEL OWER UPPLY YSTEMS A Model 430 Power Supply Programmer and two Model 4Q06125PS Power Supplies are configured to make up the system designated as 4Q06250PS-430. The Model 4Q06250PS is a 1500 Watt, ±6 VDC, ±250 A, four-quadrant, voltage and current stabilized DC supply system.
Page 22: Model 4Q1005Ps-430 Power Supply System
3. Due to continuous discharge power limitations present in the BOP series supplies, for maxi- mum safety AMI limits both the charging and discharging voltage to a maximum of 10 volts via the Model 430 Programmer, effectively limiting the available power to 50 watts.
Page 23 MERICAN AGNETICS NTRODUCTION UADRANT YSTEMS ENERAL ESCRIPTION Typical Model 4Q1010PS-430 System Rack Layout...
Page 24: Model 430 Front Panel Layout
RAMP VOLTAGE RESET American Magnetics, Inc. RATE LIMIT QUENCH SHIFT Model 430 Power Supply Programmer INCR. FIELD <> DECR. FIELD CURRENT FIELD MENU P. SWITCH FIELD STAB. HTR. CUR. UNITS FIELD AT TARGET PERSIST. TARGET RAMP MAGNET IN PERSISTENT MODE ENTER SWITCH FIELD...
Page 25: Model 430 Rear Panel Layout
125 A 250 A 1 Current Shunt Terminals 6 Aux Inputs 15-pin Female HD D-sub Connector 2 Ethernet RJ-45 Connector 7 Dual Auxiliary LHe Level/Temp 9-pin Male D-sub Connectors 3 RS-232 9-pin Female D-sub Connector 8 Dual Magnet Station 25-pin Female D-sub Connectors (Male for legacy devices) 4 Quench I/O 15-pin Male HD D-sub Connector 9 Input Power IEC 60320 C14 Male Connector...
Page 26 1 Current Transducer 9-pin Female D-sub Connector 6 Aux Inputs 15-pin Female HD D-sub Connector 2 Ethernet RJ-45 Connector 7 Dual Auxiliary LHe Level/Temp 9-pin Male D-sub Connectors 3 RS-232 9-pin Female D-sub Connector 8 Dual Magnet Station 25-pin Female D-sub Connectors (Male for legacy devices) 4 Quench I/O 15-pin Male HD D-sub Connector 9 Input Power IEC 60320 C14 Male Connector...
Page 27: Power Supply Unit Front Panel Layout
MERICAN AGNETICS NTRODUCTION OWER UPPLY RONT ANEL AYOUT OWER UPPLY RONT ANEL AYOUT The Four-Quadrant Power Supply System individual power supply front panels contain the input ON/OFF circuit breaker and the FAULT, MASTER / STANDALONE, and SLAVE indicators. Refer to the figure and table below for the panel controls and indicators.
Page 28: Rev
AGNETICS NTRODUCTION UADRANT YSTEM PECIFICATIONS UADRANT YSTEM PECIFICATIONS High-Current Four-Quadrant Power Supply System Specifications 4Q06125PS-430 4Q06250PS-430 4Q12125PS-430 Magnet Current Control Range: 125 to +125 A 250 to +250 A 125 to +125 A Programming Accuracy (w/ internal shunt): 62.5 mA 125mA 62.5 mA...
Page 29 MERICAN AGNETICS NTRODUCTION UADRANT YSTEM PECIFICATIONS Low-Current Four-Quadrant Power Supply System Specifications 4Q1005PS-430 4Q1010PS-430 Magnet Current Control Range: 5 to +5 A 10 to +10 A Programming Accuracy (w/ internal shunt): 0.38 mA 1.5 mA Programming Accuracy w/ High-Stability Option: 0.25 mA 0.5 mA Stability (w/ internal shunt):...
Page 30: Model 430 Specifications @ 25 °C
430 S @ 25 °C MERICAN AGNETICS NTRODUCTION ODEL PECIFICATIONS 430 S @ 25 °C ODEL PECIFICATIONS Magnet Current Control Parameters Standard Model 430 Factory Configurations: Programmable Limits 5 A 10 A 100 A 125 A 250 A 300 A +600 A Measurement Resolution (A): 0.625...
Page 31 430 S @ 25 °C MERICAN AGNETICS NTRODUCTION ODEL PECIFICATIONS Persistent Switch Heater Output Programmable Limits: 0.0 to 125 mA DC Accuracy: 0.2 mA Temperature Coefficient: 0.01 mA / °C Maximum Compliance: 14 V Resolution: 0.03 mA Rampdown and Quench Inputs Open Circuit Voltage: 5 VDC ±5% Input Resistance:...
Page 32: Operating Characteristics
This is termed the “High-Stability” option for AMI power supply systems. The zero-flux device does not exhibit the self-heating physics of a resistive shunt and is therefore, more accurate with less drift with increasing current magnitude.
Page 33: Dual-Quadrant Operation
The magnitude of the resistive elements determines how fast the magnetic field can be collapsed and is typically very slow in the single-quadrant system. AMI does not recommend single-quadrant operation with large inductive loads due to the extremely long discharge times involved.
Page 34: Four-Quadrant Operation
MERICAN AGNETICS NTRODUCTION PERATING HARACTERISTICS The disadvantage to this type of system is that energy is being dissipated in the energy absorbing element whenever current is flowing. This loss is sometimes a significant portion of the power required to operate the system. It also does not provide for field polarity reversal. The Four-Quadrant Magnet Power Supply System illustrated in the UADRANT figure below offers the most control of all the modes of operation.
Page 35: Installation
Do not modify this equipment in any way. If component WARNING replacement is required, return the equipment to AMI facilities as described in the Service section of this manual. If used in a manner not specified in this manual, the...
Page 36: Inspecting And Unpacking
If there is any shipping damage, save all packing material and NOTE contact the shipping representative to file a damage claim. Do not return to AMI unless prior authorization has been received. OWER UPPLY YSTEM...
Page 37: Changing The Model 430 Programmer Operating Voltage
An example of the data to be entered and how it is entered is described on page 112. If the Model 430 Programmer was purchased as part of a magnet system, essential data will have already been entered at the AMI factory and a configuration sheet will have been provided detailing the settings.
Page 38: System Interconnects (Single-Axis Systems)
AMI Technical Support Representative for higher current applications. Note that an AMI Model 1700 Liquid Level Instrument (with the LHe measurement option) is shown as a possible component of each integrated system. The main instrumentation cable connecting the...
Page 39: Four-Quadrant Power Supply System (4Q06125Ps-430)
Model 430 Programmer, the 4Q06125PS power supply, and associated interconnection cabling. Refer to illustration below for the physical view of the interconnects. Typical Model 4Q06125PS-430 System Rack Interconnections Referring to the diagram on page 24 , ensure the cabling is connected in the following manner a.
Page 40 AMERICAN MAGNETICS, INC. OAK RIDG E, TN, USA 100-240Vac 50-60 Hz 200 VA AUX I/O VALVE CONTROL RS-232 ETHERNET Model 4Q06125PS-430 System Interconnections...
Page 41 MERICAN AGNETICS NSTALLATION YSTEM NTERCONNECTS INGLE YSTEMS b. Connect the negative magnet current lead to the positive (+) resistive shunt terminal on the back of the Model 430 Programmer.  c. Connect the negative ( ) resistive shunt terminal on the back of the Model 430 Programmer to the power supply COMMON terminal d.
Page 42 AMERICAN MAGNETICS, INC. OAK RIDG E, TN, USA 100-240Vac 50-60 Hz 200 VA AUX I/O VALVE CONTROL ETHERNET RS-232 Model 4Q06125PS-430 High-Stability System Interconnects...
Page 43 MERICAN AGNETICS NSTALLATION YSTEM NTERCONNECTS INGLE YSTEMS Do not overtighten the hardware on the interconnection CAUTION terminals (refer to specifications table on page 12 for torque limits). Overtightening can result in damage to the terminals. If routing the magnet cable (+) from power supply OUTPUT NOTE through the current transducer (CT), the current-direction arrow...
Page 44: High-Current, Four-Quadrant Power Supply System (4Q06250Ps-430)
MERICAN AGNETICS NSTALLATION YSTEM NTERCONNECTS INGLE YSTEMS (4Q06250PS-430) URRENT UADRANT OWER UPPLY YSTEM For the high-current, four-quadrant power supply system, the components include the Model 430 Programmer, two 4Q06125PS power supplies, and associated interconnection cabling. The 4Q06125PS are master-slave configured in parallel for twice the rated current output of a single supply, and the supplies are interconnected with a control cable and protective cable with protective terminators.
Page 45 AMERICAN MAGNETICS, INC. OAK RIDG E, TN, USA 100-240Vac 50-60 Hz 200 VA AUX I/O VALVE CONTROL ETHERNET RS-232 Model 4Q06250PS-430 System Interconnections...
Page 46 MERICAN AGNETICS NSTALLATION YSTEM NTERCONNECTS INGLE YSTEMS The use of locking hardware is recommended for all high-current NOTE connections. Do not overtighten the hardware on the interconnection CAUTION terminals (refer to specifications table on page 12 for torque limits). Overtightening can result in damage to the terminals.
Page 47 MERICAN AGNETICS NSTALLATION YSTEM NTERCONNECTS INGLE YSTEMS k. 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.
Page 48: High-Voltage, Four-Quadrant Power Supply System (4Q12125Ps-430)
MERICAN AGNETICS NSTALLATION YSTEM NTERCONNECTS INGLE YSTEMS (4Q12125PS-430) OLTAGE UADRANT OWER UPPLY YSTEM For the high-voltage, four-quadrant power supply system, the components include the Model 430 Programmer, two 4Q06125PS power supplies, and associated interconnection cabling. The 4Q06125PS are master-slave configured in series for twice the rated voltage output of a single supply, and the supplies are interconnected with a control cable and protective cable with protective terminators.
Page 49 AMERICAN MAGNETICS, INC. OAK RIDG E, TN, USA 100-240Vac 50-60 Hz 200 VA AUX I/O VALVE CONTROL ETHERNET RS-232 Model 4Q12125PS-430 System Interconnections...
Page 50 MERICAN AGNETICS NSTALLATION YSTEM NTERCONNECTS INGLE YSTEMS The use of locking hardware is recommended for all high-current NOTE connections. Do not overtighten the hardware on the interconnection CAUTION terminals (refer to specifications table on page 12 for torque limits). Overtightening can result in damage to the terminals.
Page 51 MERICAN AGNETICS NSTALLATION YSTEM NTERCONNECTS INGLE YSTEMS k. 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.
Page 52 UPPLY YSTEM 4Q1005PS-430) AMI offers a low-current (5 A or 10 A rated) system option to achieve high-resolution control of the magnet current. The components include a Model 430 Programmer, a Model 4Q1005PS or Model 4Q1010PS low- current four-quadrant power supply, and associated interconnecting cabling.
Page 53 AMERICAN MAGNETICS, INC. OAK RIDG E, TN, USA 100-240Vac 50-60 Hz 200 VA AUX I/O VALVE CONTROL ETHERNET RS-232 Model 4Q1005PS-430 Low-Current System Interconnections...
Page 54 MERICAN AGNETICS NSTALLATION YSTEM NTERCONNECTS INGLE YSTEMS b. Install three jumpers on the terminal board (back of power supply): S OUT GRD NET S COM c. Connect the negative magnet current lead to the positive (+) resistive shunt terminal on the back of the Model 430 Programmer.
Page 55: System Interconnects (Multi-Axis Systems)
YSTEM NTERCONNECTS ULTI YSTEMS Each axis of AMI’s two and three axis superconducting magnet systems ENERAL incorporates a Model 430 Programmer, a four-quadrant power supply, and a set of power-supply and magnet interconnecting high-current load cables. In addition, a combination of instruments to monitor or control temperature, level, pressure and/or other parameters may be included.
Page 56: Standard (Non-Recondensing) Helium-Based 2-Axis System Signal Interconnects
MERICAN AGNETICS NSTALLATION YSTEM NTERCONNECTS ULTI YSTEMS TANDARD RECONDENSING ELIUM BASED YSTEM IGNAL NTERCONNECTS AMERICAN MAGNETICS, INC. OAK RIDG E, TN, USA 100-240Vac 50-60 Hz 200 VA AUX I/O VALVE CONTROL RS-232 ETHERNET Two-Axis Standard Helium System Signal Interconnections...
Page 57: Standard (Non-Recondensing) Helium-Based 3-Axis System Signal Interconnects
MERICAN AGNETICS NSTALLATION YSTEM NTERCONNECTS ULTI YSTEMS TANDARD RECONDENSING ELIUM BASED YSTEM IGNAL NTERCONNECTS AMERICAN MAGNETICS, INC. OAK RIDG E, TN, USA 100-240Vac 50-60 Hz 200 VA AUX I/O VALVE CONTROL RS-232 ETHERNET Three-Axis Standard Helium System Signal Interconnections...
Page 58: Recondensing Helium-Based 2-Axis System Signal Interconnects
MERICAN AGNETICS NSTALLATION YSTEM NTERCONNECTS ULTI YSTEMS ECONDENSING ELIUM BASED YSTEM IGNAL NTERCONNECTS AMERICAN MAGNETICS, INC. OAK RIDG E, TN, USA 100-240Vac 50-60 Hz 200 VA AUX I/O VALVE CONTROL ETHERNET RS-232 Two-Axis Recondensing Helium System Signal Interconnections...
Page 59: Recondensing Helium-Based 3-Axis System Signal Interconnects
MERICAN AGNETICS NSTALLATION YSTEM NTERCONNECTS ULTI YSTEMS ECONDENSING ELIUM BASED YSTEM IGNAL NTERCONNECTS AMERICAN MAGNETICS, INC. OAK RIDG E, TN, USA 100-240Vac 50-60 Hz 200 VA AUX I/O VALVE CONTROL ETHERNET RS-232 Three-Axis Recondensing Helium System Signal Interconnections...
Page 60: Cryogen-Free 2-Axis System Signal Interconnects
MERICAN AGNETICS NSTALLATION YSTEM NTERCONNECTS ULTI YSTEMS RYOGEN YSTEM IGNAL NTERCONNECTS Two-Axis Cryogen-free System Signal Interconnections RYOGEN YSTEM IGNAL NTERCONNECTS Three-Axis Cryogen-free System Signal Interconnections...
Page 61: Special Configurations
MERICAN AGNETICS NSTALLATION PECIAL ONFIGURATIONS PECIAL ONFIGURATIONS 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.
Page 62: Short-Circuit Or Resistive Load
If you have purchased a superconducting magnet with the Model NOTE 430 Programmer, AMI will normally provide a recommended stability setting for optimal operation of the magnet system. If you operate the Model 430 Programmer with a different load, be...
Page 63: Power-Up And Test Procedure
6. Verify the various setup menu values for the system. If the power supply sys- tem was purchased with an AMI magnet, AMI has preset the setup menu 9. If the system shipped with CamLoc quick-disconnect connectors, they may be quickly discon-...
Page 64 MERICAN AGNETICS NSTALLATION OWER P AND ROCEDURE values for proper operation. See page 73 for more discussion of the setup menu values and their entry into the Model 430 Programmer. 7. Set the Target Setpoint to 10 A. Refer to page 54 and page 61. 8.
Page 65: Operation
MERICAN AGNETICS PERATION Operation This section describes the operation of the Model 430 Programmer. Every menu and submenu item is illustrated and described in detail. An example setup of the Model 430 Programmer is presented on page 112. An example ramping operation is presented on page 125. YSTEM OWER EQUENCE...
Page 66: Energizing The Power Supply And Components
NOTE 430 Programmer off, wait 15 seconds or more, and power the Model 430 Programmer back on. AMI Model 430 Programmer FAILURE TO LOAD. When powering the system off, first turn off the power supply controlled by the Model 430 Programmer followed by the Model 430 Programmer.
Page 67: Model 430 Programmer Default Display
AMI Model 430 Power Supply Programmer. When powering the system off, turn off the power supply(s) (master unit last) before powering off the Model 430 Programmer.
Page 68: Voltage Display
Programmer to measure the magnet voltage, the magnet voltage taps must be connected to the Model 430. Normally this is done through the Magnet Station Cable provided by AMI (if the whole magnet system is provided by AMI). V indicates the Model 430 Programmer-controlled power supply output voltage.
Page 69: Status Indicator
430 P MERICAN AGNETICS PERATION ODEL ROGRAMMER EFAULT ISPLAY The status indicator displays TATUS NDICATOR Description of Status Indicators the Model 430 Programmer operating status. It is always Paused visible (except during a quench condition) and is displayed just Ramping Up to the right of the field / current display (see the figure on Ramping Down...
Page 70: Entering Numeric Values
MERICAN AGNETICS PERATION NTERING UMERIC ALUES NTERING UMERIC ALUES RAMP VOLTAGE RESET RATE LIMIT QUENCH SHIFT DECR. INCR. FIELD <> FIELD FIELD CURRENT MENU FIELD P. SWITCH STAB. HTR. CUR. UNITS ENTER RAMP FINE VOLT Vs <> Vm ADJUST METER ZERO Numeric Keypad and Associated Keys A consistent method of entering values is used within menus requiring...
Page 71: Using The Fine Adjust Knob
MERICAN AGNETICS PERATION SING THE DJUST outside of the valid range are ignored, and if attempted the Model 430 Programmer will beep once, indicate the error, and revert to the previous setting. If the key is pressed while numeric entry is active and digits have been entered, the entered digits will be cleared and the cursor will remain for reentry of a new desired value.
Page 72 MERICAN AGNETICS PERATION SING THE DJUST When the fine adjust knob is live, adjustments made using it take place immediately. This can be a useful and powerful functionality. Any numeric value can be incrementally adjusted using the fine adjust knob, and its affect on the system can be observed as the adjustment is being made.
Page 73: Selecting Picklist Values
MERICAN AGNETICS PERATION ELECTING ICKLIST ALUES ELECTING ICKLIST ALUES MENU ENTER Menu Navigation Keys Some submenu items require the user to select a value from a list of predefined values (picklist values). Such menus will display an item selector ( ) which points to the picklist value currently selected. To change the value to another value in the picklist, first press the ENTER key;...
Page 74: Single-Key Commands / Menus
MERICAN AGNETICS PERATION INGLE OMMANDS ENUS If the key is pressed while picklist entry is active, the setting will revert to the previous value and picklist entry will be made inactive. Note that if the key is pressed when numeric entry is not active, the current submenu will be exited and the next higher level submenu will be restored (if it exists).
Page 75 MERICAN AGNETICS PERATION INGLE OMMANDS ENUS SHIFT RESSING THE KEY TO VOID UTOMATIC AMPING Pressing followed by the SHIFT PERSIST. SWITCH CONTROL key only toggles the Model 430 Programmer persistent switch heater between energized (turned on) and de-energized (turned off). If the persistent switch heater is energized and this key is pressed, the persistent switch heater is de-energized.
Page 76 MERICAN AGNETICS PERATION INGLE OMMANDS ENUS adequate for the majority of persistent switches. If the magnet appears unstable just after the switch heating period expires, increase the switch heated time to allow for complete heating. The cooled time allows the persistent switch sufficient time to be cooled to superconducting state before the current is changed in the magnet.
Page 77: Target Field Setpoint Key
MERICAN AGNETICS PERATION INGLE OMMANDS ENUS drift during persistent switch cooling, especially with conduction cooled switches. Increasing the cooling gain adds control loop gain during the switch cooling cycle. Too little may result in magnet drift during switch cooling. Too much may result in power supply instability during switch cooling, which could potentially prevent the switch from cooling.
Page 78: Ramp / Pause Key
: SHIFT+ MERICAN AGNETICS PERATION OMMANDS ENUS Pressing the key toggles the Model 430 Programmer RAMP / PAUSE AUSE between the ramping mode and the paused mode. If the RAMP / PAUSE key is pressed while the Model 430 is ramping, the ramping is paused. If key is pressed while the Model 430 is paused, the RAMP / PAUSE Model 430 continues ramping.
Page 79: Ramp Rate (Shift+1)
: SHIFT+ MERICAN AGNETICS PERATION OMMANDS ENUS RAMP VOLTAGE RESET RATE LIMIT QUENCH SHIFT DECR. INCR. FIELD <> FIELD FIELD CURRENT P. SWITCH FIELD STAB. HTR. CUR. UNITS FINE VOLT Vs <> Vm ADJUST METER SHIFT+Key Functions or “ ”). The SHIFT+key command / menu for each key of the numeric keypad is shown in light blue text at the top of each key.
Page 80 : SHIFT+ MERICAN AGNETICS PERATION OMMANDS ENUS XAMPLE An example (using a magnet with rated current of 60 A ) will illustrate the use of the ramp rate menus. The example assumes that the field/current units have been set to amperes and the ramp segments value has been set to three (3) segments.
Page 81 : SHIFT+ MERICAN AGNETICS PERATION OMMANDS ENUS Pressing the right arrow key accesses the next (second) segment ramp-rate display. The segment #2 ramp rate is set to a value of 0.1 A/sec. +50.00 A Seg.2 Ramp Rate (A/sec) +0.50 Vs ±0.1000 The right arrow key is pressed once to access the segment #2 range display.
Page 82: Voltage Limit (Shift+2)
: SHIFT+ MERICAN AGNETICS PERATION OMMANDS ENUS been committed with the key, the adjusted value will be ENTER discarded. The display will update to show the new segment ramp rate, and the fine adjust knob will apply to the new segment (assuming the key is pressed before the segment has ENTER...
Page 83: Reset Quench (Shift+3)
: SHIFT+ MERICAN AGNETICS PERATION OMMANDS ENUS absorber if in use (see page 114 for details of how to determine the appropriate Voltage Limit). +50.00 A Voltage Limit (V) +0.50 Vs ±2.000 The Voltage Limit may be set less than or equal to the maximum output voltage of the power supply.
Page 84: Field <> Current (Shift+5)
: SHIFT+ MERICAN AGNETICS PERATION OMMANDS ENUS key may be pressed to pause manual ramping. Manual RAMP / PAUSE ramping will continue until paused or the Current Limit is achieved. If the current/field is negative, using the key to NOTE INCR.
Page 85: Persistent Switch Heater Current (Shift+8)
The valid input range is from 0.0 to 100.0%. The default value is 0.0% unless preset by AMI to match a specific superconducting magnet. See page 81 for details of how to determine the stability setting to use.
Page 86: Shift + Persist Switch Control
: SHIFT+ MERICAN AGNETICS PERATION OMMANDS ENUS This keystroke enables persistent switch control without some automatic HIFT ERSIST sequencing features. Refer to page 58. WITCH ONTROL...
Page 87: Led Indicators
: LED I MERICAN AGNETICS PERATION NDICATORS OWER NDICATOR LED I NDICATORS The Model 430 Programmer has six front panel LED indicators. See the front panel illustration and table on page 8 for the location of these indicators. The green power-on LED indicates that the Model 430 Programmer is OWER NDICATOR powered on.
Page 88: Shift Indicator
: LED I MERICAN AGNETICS PERATION NDICATORS HIFT NDICATOR If the Model 430 Programmer power supply system is CAUTION powered off and moved from one magnet system to another, the LED may MAGNET IN PERSISTENT MODE not correctly indicate the state of the magnet system until the first time the persistent switch heater is turned off.
Page 89: Setup Menu
MERICAN AGNETICS PERATION ETUP AVIGATION ETUP Setup of the Model 430 Programmer requires the user to navigate the setup menu. Navigation of the setup menu is intuitive — quite similar, for example, to the use of a cell phone menu. NTERING XITING ETUP...
Page 90: Setup Submenu Descriptions
MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS UPPLY UBMENU ETUP UBMENU ESCRIPTIONS When a submenu is entered by selecting a submenu item and pressing (see page 73 for details of menu navigation), the user will be ENTER able to edit parameters under that submenu. The Setup menu structure in summarized in the figure below: SETUP MENU SUBMENUS...
Page 91 ESCRIPTIONS UPPLY UBMENU If using a standard power supply supported by AMI, selecting a power supply within the Select Supply picklist sets all the remaining parameters in the supply submenu per the table on page 76. The Supply submenu is unique in that it has only the Select Supply...
Page 92 Max Output Min Output Max Output V-V Mode Input Power Supply Voltage (V) Voltage (V) Current (A) Current (A) Range (V) AMI 08150PS +8.000 +150.000 0 to +10.000 AMI 12100PS +100.000 +12.000 0 to +10.000 AMI 12200PS +200.000 AMI 4Q05100PS 5.000...
Page 93 The power supply settings define the output voltage and current ranges for a specific power supply. For example, V-I diagrams are presented in the diagram below for the AMI 12100PS and AMI 4Q06125PS selections. The AMI 12100PS operates as a one-quadrant system without the addition of an energy absorber.
Page 94 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS UPPLY UBMENU Output Current, Max Output Current and V-V Mode Input Range) are entered. Entry of each of these parameters is described below. UTPUT OLTAGE 0.00 A — Min Output Voltage (V) 0.00 Vs -6.000 The minimum output voltage is specified in volts (V) and reflects the minimum output voltage compliance of a connected power...
Page 95 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS UPPLY UBMENU UTPUT URRENT 0.00 A — Max Output Current (A) 0.00 Vs +100.000 The maximum output current is specified in amperes (A) and reflects the maximum output current capacity of a connected power supply. The valid range is 0.001 to +100,000 A , and can be set by using either the numeric keypad as described on page 54 or the fine adjust knob (on page 55).
Page 96: Load Submenu
MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS UBMENU When the Load submenu is selected, several parameters associated UBMENU with the superconducting magnet load can be viewed and/or changed. TABILITY 0.00 A — Stability Mode +0.50 Vs Auto Manual Test The stability mode provides configuration of the loop control gain for operating with a magnet or testing a system on a short-circuit load.
Page 97 54 or the fine adjust knob (on page 55). The valid range is from 0.0 to 100.0%. The default value is 0.0% unless preset by AMI to match a specific superconducting magnet.
Page 98 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS UBMENU TABILITY ETTING FOR AGNETS WITH A ERSISTENT WITCH The graph below may be used as a guide to set the stability setting for magnets with a persistent switch installed and inductance of less than 3 henries. Magnets with an inductance of greater than 3 henries that have a persistent switch installed should operate with a stability setting of 0.0%.
Page 99 Values from 0.001 to 999.99999 are acceptable for the coil constant. The default value is 1.00000 kG/A (or 0.10000 T/A) unless preset by AMI to match a specific superconducting magnet. If the coil constant value is 0.0 kG/A (or 0.0 T/A), then no conversion from amperes to kilogauss or tesla is performed —...
Page 100 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS UBMENU FFSET 0.00 A — Zero Offset Null (Cleared) 0.00 Vs ENTER to set, 0 to Clear This menu requires legacy firmware version 2.64 or later, or firmware version 3.14 or later for newer units, and is only displayed if the Model 430 is configured for the “high-stability”...
Page 101 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS UBMENU 6. Turn on the connected power supply and press ENTER to continue normal operation with the new Zero Offset Null value applied. The Zero Offset Null value is retained by the Model 430 between power cycles.
Page 102: Switch Submenu
+0.50 Vs This picklist value indicates whether an energy absorber, such as the AMI Model 601, is connected to the power supply system. The default setting is NO. It is important for this setting to be correct since the control gain tables of the Model 430 Programmer compensate for the additional load of the energy absorber if present.
Page 103 If NO is selected, the various settings are not made available within the Switch submenu and the PERSIST. SWITCH key becomes inoperable. CONTROL The default value is YES unless preset by AMI to match a specific superconducting magnet. WITCH URRENT ETECT 0.00 A...
Page 104 0.0 and 125.0 mA. The value can be set by using either the numeric keypad as described on page 54 or the fine adjust knob (on page 55). The default value is 10.0 mA unless preset by AMI to match a specific superconducting magnet. WITCH RANSITION +50.00 A...
Page 105 54 or the fine adjust knob (on page 55). The default is 20 seconds unless preset by AMI match specific superconducting magnet. During the persistent switch heating period, the Model 430 Programmer ramping functions are disabled.
Page 106 54 or the fine adjust knob (on page 55). The default is 20 seconds unless preset by AMI to match a specific superconducting magnet. During the persistent switch cooling period, the Model 430 Programmer ramping functions are disabled.
Page 107 The value can be set by using either the numeric keypad as described on page 54 or the fine adjust knob (on page 55). The default is 10 A/sec unless preset by AMI to match a specific Model 430 configuration or superconducting magnet system.
Page 108: Protection Submenu
(current limit symmetry). The Current Limit is normally preset by AMI to match a specified superconducting magnet. If AMI is not supplying the magnet of if the specific magnet data has not been provided by the customer, the Model 430 will ship with the Current Limit set at the default value of ±80 A.
Page 109 ± CURRENT LIMIT (A) OPERATING RANGE as LIMITED by CURRENT LIMIT -200 +200 ±2.5 ± VOLTAGE LIMIT (V) AMI 4Q06125PS AVAILABLE RANGE Current and Voltage Limits set within the Supply Ranges NABLE UENCH ETECT +50.00 A — Enable Quench Detect? +0.50 Vs...
Page 110 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS ROTECTION UBMENU DDITIONAL UENCH ETECTION ELECTIONS If the optional Operational Limits f(T) functionality is enabled (see page 95), then the quench detection menu includes some additional selections as illustrated below: +50.00 A — Enable Quench Detect? +0.50 Vs Current Tmax...
Page 111 42. The Operational Limits menu can be hidden with an internal hardware switch. If this menu is not visible, then the hardware switch has been set to hide it. Contact an Authorized AMI Technical Support Representative if you wish to enable this feature.
Page 112 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS ROTECTION UBMENU Ic vs. Temperature 200.00 180.00 160.00 140.00 120.00 100.00 80.00 60.00 40.00 20.00 0.00 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 Temperature (K) Example of Ic (i.e. critical current) vs. Temperature protection line an error, and deny the new entry to the Target Field/Current Setpoint if the value exceeds Ic.
Page 113 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS ROTECTION UBMENU indicating a temperature-limited condition (i.e. the reverse-video T character): +50.53 A Mode: Ramping: Ic=50.5 4.50 K No PSwitch Installed Illustration of optional default display showing the value of c, the present Aux-In 3 temperature, and a temperature-limited condition.
Page 114 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS ROTECTION UBMENU 3: T S CALE +50.00 A — Aux-In 3: T Scale (K/V) 4.50 K +1.000 This value controls the scaling of the voltage measured via the Auxiliary Input channel 3 (see page 218). The measured voltage is multipled by this scale factor in Kelvin/Volts.
Page 115: Misc Submenu
The ramp segments value specifies the number of current ranges which can be given unique ramp rate values. The default value is 1 unless preset by AMI to match a specific superconducting magnet. When this value is 1, there is only one ramp rate for the Model 430 Programmer, used for the full available current range.
Page 116 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS UBMENU NITS +50.00 A — Ramp Rate Time Units +0.50 Vs Seconds Minutes This picklist value specifies the unit of time used to enter and the display ramp rate. If Seconds is selected, ramp rate is entered in A/s, kG/s or T/s;...
Page 117 Settings Protection submenu will be exited, and the password must be entered again if further changes to settings protection are desired. If the password has been forgotten, contact AMI Technical Support for assistance. To change the password, see page 107. WITCH ONTROL +50.00 A...
Page 118 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS UBMENU ARGET IELD ETPT +50.00 A — Target Field Setpt Lock +0.50 Vs Locked Unlocked This picklist value specifies whether use of the TARGET FIELD key is locked or unlocked. The default value is SETPOINT Unlocked.
Page 119 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS UBMENU Custom..., then setting Power Supply Lock to Locked also prevents the custom power supply parameters (Min Output Voltage, Max Output Voltage, Min Output Current, Max Output Current and V-V Mode Input Range) from being edited. The default value is Unlocked.
Page 120 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS UBMENU IELD NITS +50.00 A — Field Units Lock +0.50 Vs Locked Unlocked This picklist value specifies whether the Field Units value is locked or unlocked (whether accessed through the FIELD key menu or under the Misc submenu). The default value UNITS is Unlocked.
Page 121 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS UBMENU ETER +50.00 A — Volt Meter Lock +0.50 Vs Locked Unlocked This picklist value specifies whether use of the VOLT METER SHIFT-key command is locked or unlocked. The default value is Unlocked. DJUST +50.00 A —...
Page 122 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS UBMENU picklist value, PSwitch Current Detect, PSwitch Current value, PSwitch Transition picklist value, PSwitch Heated Time value, PSwitch Cooled Time value, PSwitch P/S Ramp Rate value, and the PSwitch P/S Cooling Gain value. The default value is Unlocked.
Page 123 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS UBMENU ISPLAY RIGHTNESS +50.00 A — Display Brightness Lock +0.50 Vs Locked Unlocked This picklist value specifies whether the Display Brightness picklist value (under the Misc submenu) is locked or unlocked. The default value is Unlocked. ETUP +50.00 A —...
Page 124: Net Settings Submenu
MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS ETTINGS UBMENU Using the keypad, type the current 4-digit (maximum) numeric password and press . The default password is 1234. If an ENTER incorrect password is entered, the Model 430 Programmer beeps and again prompts for the password. Once the password has been correctly entered, the user is prompted for the new password.
Page 125 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS YSTEM RESENT +50.00 A — System Name (Present) +0.50 Vs This submenu item displays the currently assigned system name (also known as host name or computer name), the name by which the Model 430 Programmer is identified on a network. This setting can only be modified using remote communications (either Ethernet or RS-232);...
Page 126: Net Setup Submenu
MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS ATEWAY DDRESS RESENT +50.00 A — Gateway Address (Present) +0.50 Vs 0.0.0.0 (DHCP) This submenu item displays the currently assigned gateway IP address for the Model 430 Programmer. The value in parentheses after the gateway IP address value indicates how the gateway IP address is assigned.
Page 127 MERICAN AGNETICS PERATION ETUP UBMENU ESCRIPTIONS IP A YSTEM DDRESS +50.00 A — System IP Address +0.50 Vs 0.0.0.0 If IP Address Assignment is Static, then the system IP address can be assigned by the user. The default value is 0.0.0.0. This item is only available in the Net Setup submenu if IP Address NOTE Assignment is Static.
Page 128: Example Setup
Magnet not warranted for operation above 80 kG. All resistance measurements made at room temperature. AMI, the setup menus are preset EXCELLENCE IN MAGNETICS AND CRYOGENICS by AMI to match the magnet Example Magnet Specification Sheet...
Page 129 XAMPLE ETUP The table below provides a summary of the Model 430 Programmer setup parameters for this example. Example Setup Configuration Parameter Setting Select Supply AMI 4Q06125PS Stability Mode Auto Coil Constant (kG/A) 0.934 Inductance (H) Energy Absorber Present PSwitch Installed PSwitch Current (mA) 41.0...
Page 130: Ramping Functions
MERICAN AGNETICS PERATION AMPING UNCTIONS AMPING UNCTIONS The ramping functions are used to control charging of the superconducting load. The Model 430 Programmer allows piecewise- linear charging profiles to be defined and executed (up to 10 segments, each with a unique ramp rate). The basic charging equation for a superconducting magnet is: --- - where V is the charging voltage (V), L is the magnet inductance (H), and...
Page 131: Manual Ramping
MERICAN AGNETICS PERATION AMPING UNCTIONS either the SHIFT+keys for manual INCR. FIELD DECR. FIELD control of ramping up or ramping down, respectively. Ramp modes and descriptions. Mode Description Ramping Automatic ramping to the target field/current is in progress. Holding The target field/current has been achieved and is being maintained. Ramping is suspended at the field/current achieved at the time the Paused PAUSED mode was entered.
Page 132: Ramping To Zero
MERICAN AGNETICS PERATION AMPING UNCTIONS ramping is not PAUSED, ramping to the target field/current begins immediately. If ramping is PAUSED, ramping to the target field/current will begin when the key is pressed to take the Model RAMP / PAUSE 430 Programmer out of PAUSED mode. The ramp rate will be controlled by the preset ramp rate variables as described in on page 63.
Page 133: Persistent Switch Control
MERICAN AGNETICS PERATION ERSISTENT WITCH ONTROL ERSISTENT WITCH ONTROL The Model 430 Programmer includes an integral persistent switch heater that provides the capability of controlling the persistent mode of the magnet either locally from the front panel of the Model 430 Programmer using the , or remotely through a PERSIST.
Page 134: Procedure For Entering Persistent Mode
MERICAN AGNETICS PERATION ERSISTENT WITCH ONTROL 1. Turn on the persistent switch heater by pressing the PERSIST. SWITCH CONTROL key to heat the persistent switch heater. 0.00 A Mode: Heating Switch (4) 0.00 Vs PSwitch Heater: ON If the PSwitch Transition setting is set to Timer, the number in NOTE parentheses in the display indicates the number of seconds...
Page 135 MERICAN AGNETICS PERATION ERSISTENT WITCH ONTROL a confirmation that the magnet should be placed in persistent mode. +50.00 A Press ENTER to begin 0.00 Vm Persistent Mode b. When ENTER is pressed, the persistent switch is cooled for the preset persistent switch cooling time (set by the PSwitch Cooled Time ).
Page 136 MERICAN AGNETICS PERATION ERSISTENT WITCH ONTROL d. If the magnet voltage exceeds 0.5 V during this ramp to zero, the Model 430 Programmer beeps to indicate the persistent switch did not transition to the superconducting state. The Model 430 will then turn the switch heater back on immediately and then begin ramping the field/current back to the value before the present cooling cycle initiation:...
Page 137: Procedure For Exiting Persistent Mode
Magnet in Persistent Mode (13.5A). Use PERSIST SWITCH CONTROL to exit Per. Mode 54. If the power supply is an AMI 4Q06125PS Type, wait for the audible click of the relay before ENTER pressing on the Model 430.
Page 138 MERICAN AGNETICS PERATION ERSISTENT WITCH ONTROL 3. Press PERSIST. SWITCH CONTROL and the Model 430 display prompts with: 0.00 A Press ENTER to exit 0.00 Vs Persistent Mode Should the user desire not to exit persistent mode, press NOTE return to the default field/current display. If the PERSIST.
Page 139 MERICAN AGNETICS PERATION ERSISTENT WITCH ONTROL The magnet voltage (Vm) is monitored during the switch heating NOTE cycle. If the voltage is greater than 0.5 V, the Model 430 Programmer will beep and display a message to indicate a mismatch between the magnet current and power supply current. +50.00 A Mode: Heating Switch (4) +0.86 Vm...
Page 140: Toggling The State Of The Persistent Switch Heater
MERICAN AGNETICS PERATION ERSISTENT WITCH ONTROL OGGLING THE TATE OF THE ERSISTENT WITCH EATER The state of the persistent switch can be toggled by pressing SHIFT and then the PERSIST. SWITCH CONTROL key. By toggling the state of the heater in this manner, there will be no power supply ramping or other automatic functions.
Page 141: Ramping Functions Example
MERICAN AGNETICS PERATION AMPING UNCTIONS XAMPLE AMPING UNCTIONS XAMPLE As an example of ramping to two target field/current settings, refer to figure below. Each step is labeled as 1 through 8. The Model 430 Programmer, for the purposes of the example, is assumed to be in the PAUSED mode at 0 A at the beginning of the ramping example.
Page 142 MERICAN AGNETICS PERATION AMPING UNCTIONS XAMPLE Point 6. The target field/current setting of +40.000 A is achieved and the Model 430 Programmer switches to HOLDING mode. At this point the user deactivates the persistent switch heater by pressing the PERSIST. key, which removes the magnet from the circuit.
Page 143: Quench Detection
MERICAN AGNETICS PERATION UENCH ETECTION UENCH ETECTION The Model 430 Programmer continuously monitors the superconducting magnet load and can automatically detect a field/current quench condition. If a quench is detected, the LED will be MAGNET QUENCH illuminated and the display will appear as shown below. +44.36 A Quench Detect @ +80.56 A 0.00 Vs...
Page 144: External Quench Detection
MERICAN AGNETICS PERATION UENCH ETECTION detect condition, or until the quench condition is cleared by a remote command. If the key has been locked , the user will be asked to RESET QUENCH enter the password to clear the quench. The entry of this password will not unlock this reset quench feature, but will only reset the current quench event so operation may resume.
Page 145: External Rampdown
Model 430 remains active during the rampdown. The external rampdown feature is ideally suited for use with AMI’s Model 1700 with the liquid helium level monitor option in wet magnet systems.
Page 146: External Rampdown While In Persistent Mode
MERICAN AGNETICS PERATION XTERNAL AMPDOWN When connected to the Model 430 Programmer, these contacts can signal the Model 430 to safely and automatically ramp the magnet field to zero, thereby preventing a magnet quench due to low liquid helium level in the system. XTERNAL AMPDOWN WHILE IN ERSISTENT...
Page 147: External Rampdown While Not In Persistent Mode
MERICAN AGNETICS PERATION XTERNAL AMPDOWN The external rampdown signal MUST be cleared before pressing NOTE will yield a response. Further operator control is ENTER inhibited until the external rampdown signal is cleared. 6. Once the external signal has been cleared, ENTER can be pressed. User control will be re-established and the operator can continue manual opera- tion of the system.
Page 148: Summary Of Limits And Default Settings
MERICAN AGNETICS PERATION UMMARY OF IMITS AND EFAULT ETTINGS UMMARY OF IMITS AND EFAULT ETTINGS The table below provides a summary of the operational limits and the default setting for all Model 430 Programmer parameters. If the user attempts to enter a value outside of the limits, the Model 430 Programmer will beep once, indicate an error, and revert to the previous setting.
Page 149: Remote Interface Reference
Separate output buffers are also provided for the serial and Ethernet return data. However, for optimal performance and simplicity of programming, AMI generally recommends limiting operation to one interface. An exception to this recommendation would be using the serial port as a debugging aid during programming of the Ethernet port (or vice-versa), which can prove to be a useful resource.
Page 150 : SCPI C MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND UMMARY System-Related Commands (see page 152 for more information) *IDN? *RST *TST? *LED? < > Ctrl-C PRINT:SERIALnumber? PRINT:PASSword? SETTINGS? SYSTem:LOCal SYSTem:REMote SYSTem:TIME? SYSTem:TIME:SET <date(mm/dd/yyyy) time(hh:mm:ss)> SYSTem:ERRor? SYSTem:ERRor:COUNt? SYSTem:IPaddr? Status System Commands (see page 155 for more information) *STB? *SRE <enable_value>...
Page 151 : SCPI C MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND UMMARY Supply Setup Configuration Queries (see page 157 for more information) SUPPly:VOLTage:MINimum? SUPPly:VOLTage:MAXimum? SUPPly:CURRent:MINimum? SUPPly:CURRent:MAXimum? SUPPly:TYPE? SUPPly:MODE? Load Setup Configuration Commands and Queries (see page 159 for more information) CONFigure:STABility:MODE {0|1|2} CONFigure:STABility <percent>...
Page 152 : SCPI C MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND UMMARY PSwitch:AUTODetect? PSwitch:CURRent? PSwitch:TRANsition? PSwitch:HeatTIME? PSwitch:CoolTIME? PSwitch:PowerSupplyRampRate? PSwitch:CoolingGAIN? Protection Setup Configuration Commands and Queries (see page 162 for more information) CONFigure:CURRent:LIMit <current (A)> CONFigure:QUench:DETect {0|1|2|3} CONFigure:QUench:RATE {1|2|3|4|5} CONFigure:OPLimit:MODE {0|1|2} CONFigure:OPLimit:ICSLOPE <value (A/K)> CONFigure:OPLimit:ICOFFSET <value (A)>...
Page 153 : SCPI C MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND UMMARY RAMP:RATE:UNITS? FIELD:UNITS? Lock Configuration Commands (see page 166 for more information) CONFigure:LOCK:PSwitch:CONTRol {0|1} CONFigure:LOCK:TARGet {0|1} CONFigure:LOCK:RAMP-PAUSE {0|1} CONFigure:LOCK:ZEROfield {0|1} CONFigure:LOCK:RAMPrate {0|1} CONFigure:LOCK:SUPPly {0|1} CONFigure:LOCK:VOLTage:LIMit {0|1} CONFigure:LOCK:QUench:RESet {0|1} CONFigure:LOCK:INCR-DECR {0|1} CONFigure:LOCK:FIELD-CURRent {0|1} CONFigure:LOCK:FIELD:UNITS {0|1} CONFigure:LOCK:STABility {0|1} CONFigure:LOCK:INDuctance {0|1}...
Page 154 : SCPI C MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND UMMARY LOCK:QUench:RESet? LOCK:INCR-DECR? LOCK:FIELD-CURRent? LOCK:FIELD:UNITS? LOCK:STABility? LOCK:INDuctance? LOCK:VOLTage:VS-VM? LOCK:VOLTMeter? LOCK:FINEadjust? LOCK:COILconst? LOCK:CURRent:LIMit? LOCK:CURRent:RATING? LOCK:PSwitch:SETtings? LOCK:QUench:DETect? LOCK:QUench:RATE? LOCK:ABsorber? LOCK:RAMPDown? LOCK:BRIGHTness? LOCK:NETsetup? LOCK:OPLimit? Net Setup Configuration Commands and Queries (see page 172 for more information) CONFigure:IPNAME <system name>...
Page 155 : SCPI C MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND UMMARY Measurement Commands and Queries (see page 174 for more information) VOLTage:MAGnet? VOLTage:SUPPly? CURRent:MAGnet? CURRent:SUPPly? CURRent:REFerence? FIELD:MAGnet? FIELD:REFerence? Ramping State Commands and Queries (see page 175 for more information) RAMP PAUSE INCR DECR ZERO...
Page 156 : SCPI C MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND UMMARY Rampdown State Commands and Queries (see page 179 for more information) CONFigure:RAMPDown:RATE:SEGments <value> CONFigure:RAMPDown:RATE:CURRent <segment>,<rate (A/s, A/min)>,<upper bound (A)> CONFigure:RAMPDown:RATE:FIELD <segment>,<rate (kG/s, kG/ min, T/s, T/min)>, <upper bound (Kg, T)> RAMPDown:RATE:SEGments? RAMPDown:RATE:CURRent:<segment>? RAMPDown:RATE:FIELD:<segment>?
Page 157: Programming Overview
MERICAN AGNETICS EMOTE NTERFACE EFERENCE ROGRAMMING VERVIEW W_KEY_PERIOD W_KEY_PLUSMINUS W_KEY_ESC W_KEY_MENU W_KEY_RIGHT W_KEY_LEFT W_KEY_ENTER W_FINE_ADJ_DELTA <value> ROGRAMMING VERVIEW The Model 430 Programmer conforms to the SCPI (Standard Commands for Programmable Instruments) IEEE standard. The SCPI standard is an ASCII-based specification designed to provide a consistent command structure...
Page 158 MERICAN AGNETICS EMOTE NTERFACE EFERENCE ROGRAMMING VERVIEW value value The Model 430 Programmer Status System A condition register continuously monitors the state of the instrument. The bits of a condition register are updated in real time. A condition register is read-only and is not cleared when you read the register. A query of a condition register returns a decimal value in the appropriate output buffer which corresponds to the binary-weighted sum of all bits set in the register.
Page 159: Status Byte Register
MERICAN AGNETICS EMOTE NTERFACE EFERENCE ROGRAMMING VERVIEW The Status Byte register group reports conditions from the Standard TATUS EGISTER Event register or output buffers. Data in the output buffer is immediately reported in the “Serial Message Available” bit (bit 3). Clearing a bit in the Standard Event register will update the corresponding bit in the Status Byte register, according to the Standard Event enable register.
Page 160: Standard Event Register
MERICAN AGNETICS EMOTE NTERFACE EFERENCE ROGRAMMING VERVIEW *PSC 0 ting is persistent if the Model 430 Programmer is configured for status clear on power-on). *STB? EADING THE TATUS YTE USING The *STB? returns the contents of the Status Byte register, but it is processed in the command queue like any other command.
Page 161: Command Handshaking
MERICAN AGNETICS EMOTE NTERFACE EFERENCE ROGRAMMING VERVIEW *PSC 0 ting is persistent if the Model 430 Programmer is configured for status clear on power-on). Bit Definitions for the Standard Event Register Decimal Bit Number Value Definition 0 Operation Complete All commands prior to and including *OPC have been executed.
Page 162 MERICAN AGNETICS EMOTE NTERFACE EFERENCE ROGRAMMING VERVIEW The *OPC command historically is designed to generate an SRQ NOTE which can be monitored by a serial poll over a GPIB interface, which operates outside of the normal command queue. Since a GPIB interface is not available in the Model 430, the *OPC command has limited value (as it would require polling the status registers using the command queue) and should be ignored in...
Page 163: Configuration
: RS-232 C MERICAN AGNETICS EMOTE NTERFACE EFERENCE ONFIGURATION RS-232 C ONFIGURATION The Model 430 Programmer uses the following fixed parameters related to the RS-232 interface: • Baud Rate: 115200 • Parity: No Parity • Data Bits: 8 Data Bits •...
Page 164: Ethernet Connector
MERICAN AGNETICS EMOTE NTERFACE EFERENCE THERNET ONFIGURATION make the values dynamically assigned by a network DHCP server, set IP Address Assignment to DHCP. The system name (also known as host name or computer name), can be set using remote communications (either Ethernet or RS-232); it cannot be edited using the front panel keypad.
Page 165 Therefore, the example broadcasted voltmeter output above would decode to a display as follows: with no LEDs in the ON state. 3. The open-source Magnet-DAQ application from AMI (see page 189) utilizes this broadcast function to show the state of the Model 430 display remotely.
Page 166 MERICAN AGNETICS EMOTE NTERFACE EFERENCE THERNET ONFIGURATION +50.00 A — | ''''|''''|  ''|'''''| +2.50 Vm USTOM ISPLAY HARACTERS Please note that the ramping character and certain other display characters have custom-defined codes beyond 0x7F that do not map directly to ASCII equivalents. The custom character and the actual byte value that is sent in a broadcast message are shown in the table below: Broadcasted Custom Display Characters...
Page 167 MERICAN AGNETICS EMOTE NTERFACE EFERENCE THERNET ONFIGURATION Broadcasted Keypress and Event Messages Message (ASCII format) Meaning SHIFT key pressed MSG_KEY_SHIFT TARGET FIELD SETPOINT key pressed MSG_KEY_TARGET RAMP TO ZERO key pressed MSG_KEY_ZEROFIELD PERSIST. SWITCH CONTROL key pressed MSG_KEY_PERSISTENT RAMP/PAUSE key pressed MSG_KEY_RAMPPAUSE 1 key pressed MSG_KEY_1...
Page 168: Command Reference
MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE OMMAND EFERENCE The following paragraphs present all Model 430 Programmer commands and queries in related groups and a detailed description of the function of each command or query is provided. Examples are also provided where appropriate.
Page 169 MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • *LED? Returns a comma-delimited list of the LED states with 0=OFF and 1=ON. The LED field order is: SHIFT FIELD AT TARGET MAGNET IN , and PERSISTENT MODE CURRENT LEADS ENERGIZED MAGNET QUENCH Bit Definitions for the LED states Decimal...
Page 170 MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • PRINT:SERIALnumber? Returns the serial number. PRINT:PASSword? • Returns the presently set numerical password. SETTINGS? • Returns a multi-line ASCII text dump of all the Model 430 settings. The output of this query is terminated with two contiguous pairs of <CR><LF>...
Page 171: Status System Commands
MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • SYSTem:ERRor? Queries the error buffer of the Model 430 Programmer. Up to 10 errors are stored in the error buffer. Errors are retrieved in first-in-first-out (FIFO) order. The error buffer is cleared by the *CLS (clear status) command or when the power is cycled.
Page 172 MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • *CLS Clears the Standard Event register and the error buffer. *ESR? • Returns a decimal sum which corresponds to the binary-weighted sum of the contents of the Standard Event register. *ESE <enable_value> •...
Page 173: Supply Setup Configuration Queries
This value can be configured only via front panel operation of the SUPPLY setup menu. SUPPly:TYPE? Return Values and Meanings for Query Return Value Meaning AMI 12100PS AMI 12200PS AMI 4Q05100PS AMI 4Q06125PS AMI 4Q06250PS AMI 4Q12125PS AMI 10100PS...
Page 174 MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • SUPPly:VOLTage:MINimum? Returns the minimum power supply compliance setting in volts. This value can be configured only via front panel operation using the Supply submenu and is set automatically when a preset supply type is selected. SUPPly:VOLTage:MAXimum? •...
Page 175: Load Setup Configuration Commands And Queries
MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE ETUP ONFIGURATION OMMANDS AND UERIES The Load Setup Configuration Commands and Queries provide read/ write access to the setup functions available for the Load Setup submenu (page 80). CONFigure:STABility:MODE {0|1|2} • “0” configures the stability mode as “Auto”, “1” is “Manual”, and “2” is “Test”.
Page 176 MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • COILconst? Returns the coil constant setting in kG/A or T/A per the selected field units. CONFigure:INDuctance <inductance (H)> • Sets the currently-connected magnet inductance in Henries. INDuctance:SENSe? • Initiates a direct measurement of the currently connected magnet. The measurement requires the magnet to be ramping up or down while not passing through a ramp segment change during the measurement.
Page 177: Switch Setup Configuration Commands And Queries
MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE WITCH ETUP ONFIGURATION OMMANDS AND UERIES The Switch Setup Configuration Commands and Queries provide read/ write access to the setup functions available for the Switch Setup submenu (page 86). CONFigure:PSwitch {0|1} • PSwitch:INSTalled? •...
Page 178: Protection Setup Configuration Commands And Queries
MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • PSwitch:HeatTIME? Returns the persistent switch heated time in seconds. CONFigure:PSwitch:CoolTIME <time (sec)> • Sets the time required in seconds for the persistent switch to become superconducting after the persistent switch heater has been deactivated. PSwitch:CoolTIME? •...
Page 179 MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE manufacturer as the maximum safe limit of magnet operation (for AMI magnets it is the Magnet Rated Current, see page 112). CURRent:LIMit? • Returns the Current Limit in amperes. CONFigure:QUench:DETect {0|1|2|3} • Sending “0” disables the automatic quench detection function of the Model 430 Programmer.
Page 180 MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE the mode to “On Entry”. Sending “2” sets the mode to “Cont f(T)”. “0” is the default value. OPLimit:MODE? • Returns “0” indicating the Protection Mode for the Operational Limits submenu is Off. Returns “1” indicating the mode is “On Entry”. Returns “2”...
Page 181: Misc Setup Configuration Commands And Queries
MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE CONFigure:OPLimit:TOFFSET <value (K)> • Sets the offset value in Kelvin for the voltage-to-temperature conversion for the voltage value read from Auxiliary Input 3 (see page 218). OPLimit:TOFFSET? • Returns the offset value in Kelvin for the Auxiliary Input 3 voltage-to- temperature conversion.
Page 182: Lock Commands And Queries
MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • CONFigure:FIELD:UNITS {0|1} Sets the preferred field units. Sending “0” selects kilogauss. A “1” selects tesla. “0” is the default value. The selected field units are applied to both the Model 430 Programmer display and the applicable remote commands.
Page 183 MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • CONFigure:LOCK:ZEROfield {0|1} Specifies whether use of the key is locked or unlocked. RAMP TO ZERO Sending “0” unlocks. A “1” locks. “0” is the default value. LOCK:ZEROfield? • Returns “0” for use of the key unlocked, or “1”...
Page 184 MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • CONFigure:LOCK:QUench:RESet {0|1} Specifies whether use of the (SHIFT+3) command is RESET QUENCH locked or unlocked. Sending “0” unlocks. A “1” locks. “0” is the default value. LOCK:QUench:RESet? • Returns “0” for use of the (SHIFT+3) command RESET QUENCH unlocked, or “1”...
Page 185 MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • LOCK:STABility? Returns “0” for Stability Mode and Stability Setting values unlocked, or “1” for locked. CONFigure:LOCK:INDuctance {0|1} • Specifies whether the Inductance and Sense Inductance? functions are located or unlocked under the Load Setup submenu. Sending “0” unlocks.
Page 186 MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • CONFigure:LOCK:COILconst {0|1} Specifies whether the Coil Constant value (under the Load submenu) is locked or unlocked. Sending “0” unlocks. A “1” locks. “0” is the default value. LOCK:VOLTage:COILconst? • Returns “0” for Coil Constant value (under the Load submenu) unlocked, or “1”...
Page 187 MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • LOCK:QUench:RATE? Returns “0” for use of the quench sensitivity (rate) command unlocked, or “1” for locked. CONFigure:LOCK:ABsorber {0|1} • Specifies whether the Energy Absorber Present picklist value (under the Load submenu) is locked or unlocked. Sending “0” unlocks. A “1” locks. “0”...
Page 188: Net Setup Configuration Commands And Queries
MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • CONFigure:LOCK:RAMPDown {0|1} Specifies whether the External Rampdown Enabled picklist value (under the Protection Setup submenu) is locked or unlocked. Sending “0” unlocks. A “1” locks. “0” is the default value. LOCK:RAMPDown? • Returns “0”...
Page 189 MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • VOLTage:LIMit? Returns the ramping Voltage Limit in volts. CONFigure:CURRent:TARGet <current (A)> • Sets the target setpoint current in amperes. CURRent:TARGet? • Returns the target current setting in amperes. CONFigure:FIELD:TARGet <field (kG, T)> •...
Page 190: Measurement Commands And Queries
MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE CONFigure:RAMP:RATE:FIELD <segment>,<rate (kG/s, kG/min, • T/s, T/min)>,<upper bound (kG, T)> Sets the ramp rate for the specified segment (values of 1 through the defined number of ramp segments are valid) in units of kilogauss/second or minute, or tesla/second or minute (per the selected field units and ramp rate units), and defines the field upper bound for that segment in kilogauss or tesla (see page 99 for details of the use of ramp segments).
Page 191: Ramping State Commands And Queries
MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • CURRent:SUPPly? Returns the measured power supply current in amperes. CURRent:REFerence? • The Model 430 maintains an internal, noise-less, digital current ramp reference as the control reference for the magnet. This command returns the ramp reference current in amperes. This command requires firmware version 3.14, or legacy firmware NOTE version 2.64, or later.
Page 192 MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • RAMP Places the Model 430 Programmer in automatic ramping mode. The Model 430 will continue to ramp at the configured ramp rate(s) until the target field/current is achieved. PAUSE • Pauses the Model 430 Programmer at the present operating field/ current.
Page 193: Switch Heater Command And Query
MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • STATE? Returns an integer value corresponding to the ramping state according to the table below: STATE? Return Values and Meanings for Query Return Value Meaning RAMPING to target field/current HOLDING at the target field/current PAUSED Ramping in MANUAL UP mode Ramping in MANUAL DOWN mode...
Page 194: Quench State Commands And Queries
MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE UENCH TATE OMMANDS AND UERIES The quench commands control and query the quench state of the Model 430 Programmer. For further information regarding the quench detection functions, see page 127. QUench {0|1} • Clears or sets the quenched state.
Page 195: Rampdown State Commands And Queries
MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE queries can return QUenchFile? QUenchBackup? NOTE thousands of ASCII characters. Ensure your input communicaton buffers are setup to handle a large amount of text. AMPDOWN TATE OMMANDS AND UERIES The external rampdown function also has ramp segmenting capability— the function operates in a manner similar to the normal ramp as described on page 63, but the parameters can only be edited via the remote interface.
Page 196 MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE • RAMPDown:RATE:FIELD: <segment>? Returns the external rampdown rate setting for the specified segment (values of 1 through the defined number of rampdown segments are valid) in units of kilogauss/second or minute, or tesla/second or minute (per the selected field units and rampdown rate units) and the current upper bound for that range in kilogauss or tesla (per the selected field units).
Page 197: Trigger Functions
MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE The Model 430 Programmer provides trigger functions which provide a RIGGER UNCTIONS means of collecting operational data with a minimum of commands and directing the output to either or both remote interfaces. ESCRIPTION OF THE RIGGER UNCTIONS The Model 430 Programmer defines a trigger enable register,...
Page 198 MERICAN AGNETICS EMOTE NTERFACE EFERENCE OMMAND EFERENCE Since trigger data is output immediately to the serial interface, it NOTE is possible to use the trigger functions to drive a terminal, modem, or a line printer (if a serial-to-parallel or serial-to-USB converter is available) connected to the serial interface.
Page 199: Error Messages
Please contact an authorized AMI Technical Support Representative for assistance if you cannot resolve the issue. A typical error is not handling the “hello” message in stateless communication code on port 7180.
Page 200 MERICAN AGNETICS EMOTE NTERFACE EFERENCE RROR ESSAGES • -102,”Invalid argument” The argument provided as a parameter for the command was invalid. Value arguments must be of the following form: • an optional plus or minus sign, • a sequence of decimal digits, possibly containing a single decimal point, •...
Page 201: Query Errors
MERICAN AGNETICS EMOTE NTERFACE EFERENCE RROR ESSAGES Programmer was either not ramping when the command was issued, or stopped ramping before the command processing was completed. -109,”N/A in present mode” • The command or query is not applicable to the present operational mode.
Page 202: Execution Errors
MERICAN AGNETICS EMOTE NTERFACE EFERENCE RROR ESSAGES -301,”Heating(Cooling) switch” • XECUTION RRORS The user attempted to initiate a disallowed function during the persistent switch heating or cooling transition period. Ramping functions, for example, are disallowed during the transition period. -302,”Quench condition” •...
Page 203: Device Errors
EVICE RRORS The non-volatile memory which stores the calibration data for the Model 430 Programmer is corrupted. Contact an Authorized AMI Technical Representative for further instructions. Do not continue to use the Model 430 Programmer to operate a superconducting magnet.
Page 204 MERICAN AGNETICS EMOTE NTERFACE EFERENCE RROR ESSAGES In the event the quench and/or rampdown event files continue to NOTE present an error when queried for output, it is possible to clear the stored history to begin anew. For the quench event history this can been done with the *RQC command.
Page 205: Remote Applications And Examples
MERICAN AGNETICS EMOTE NTERFACE EFERENCE EMOTE PPLICATIONS AND XAMPLES EMOTE PPLICATIONS AND XAMPLES -DAQ: The Model 430 can be accessed via a network connection with fully AGNET functional control. This is accomplished through the Ethernet OMPREHENSIVE connection on the rear panel using TCP/IP protocol via a host computer. 430 R ODEL EMOTE...
Page 206 MERICAN AGNETICS EMOTE NTERFACE EFERENCE EMOTE PPLICATIONS AND XAMPLES after Model 430 power-up. The following example illustrates how the IP Address may be determined using the Model 430 menu system: 5. IP Address: Menu > Net Settings > IP Address (Present). 0.00 A —...
Page 207 FAQ (Frequently Asked Questions) related to the Mag- net-DAQ application (all stored in the Model 430 firmware). There are also links to the AMI website and an e-mail form for contacting AMI Customer Support. 6. Choose the desired Magnet-DAQ version for the appropriate operating sys- tem and follow the installation instructions for each.
Page 208: Scpi-Based Communication Via Rs-232
9. Mouser Electronics offers a compact null-model/gender changer: see part # 515-140-448-R. 10. AMI recommends FTDI USB-to-serial cables. See DigiKey part # 768-1084-ND. 11. The Tera Term application is open-sourced and is available at https://ttssh2.osdn.jp/ index.html.en. A Windows installer is also linked on the internal Model 430 web page, see...
Page 209 MERICAN AGNETICS EMOTE NTERFACE EFERENCE EMOTE PPLICATIONS AND XAMPLES 3. Choose the Serial option and then the Port to which the Model 430 is con- nected. This example illustrates COM20: USB Serial Port (COM20), which in this example is the port assigned by Windows to a USB-to-serial adapter cable.
Page 210: Scpi-Based Communication Via Ethernet
5. Use < >/< > as necessary to navigate to Addr Assignment (Present). The Addr Assignment (Present) must show “DHCP” as originally NOTE set by AMI unless a static IP address has been assigned by your local network administrator. If you are using the direct PC-to-Model 430 connection, you may be required to assign a static IP addresses for the Model 430 on the same subnet as the PC interface (typically 169.254.xxx.xxx for...
Page 211 MERICAN AGNETICS EMOTE NTERFACE EFERENCE EMOTE PPLICATIONS AND XAMPLES 6. Use < >/< > to locate IP Address (Present), similar to that shown below: 0.00 A — IP Address (Present) 0.00 Vs 192.168.1.12 (DHCP) 7. Make note of the IP Address (Present). 8.
Page 212 MERICAN AGNETICS EMOTE NTERFACE EFERENCE EMOTE PPLICATIONS AND XAMPLES 11.Use the Setup | Ter- minal... command in Tera Term to show the terminal setup parameters. Set the parameters as shown at right. You may choose the Terminal size per your prefer- ence and screen size.
Page 213: Service
4Q06125PS The Model 4Q06125PS is specifically designed to minimize the need for ODEL periodic maintenance, and AMI does not recommend a periodic OWER UPPLY calibration or service. Keep the exterior surfaces clean by gently wiping OUTINE with a damp cloth moistened with a mild detergent.
Page 214: Manually Upgrading The Firmware Via Ftp
Authorized AMI Technical Representative to recover. The goal of AMI is to continue supporting legacy devices with all bug fixes and new features where the hardware supports it. Features specific to newer branch firmware (3.0+) are noted in this manual.
Page 215 3. The command-line interface of a built-in FTP client that requires no software installation. REPARATION 1. The AMI Model 430 can be upgraded through a local facility network, or via direct Ethernet connection to the PC: a. Via Facility Network: (i.)
Page 216 430 F MERICAN AGNETICS ERVICE ODEL IRMWARE PGRADES 6. Use < >/< > to locate IP Address (Present), similar to that shown in Fig- ure 1. 0.00 A — IP Address (Present) 0.00 Vs 169.254.34.203 (DHCP) 7. Make note of the IP Address (Present). PLOAD ROCEDURE USING INDOWS...
Page 217: Troubleshooting Hints
Model 430 Programmer within a superconducting magnet system. If the user is not comfortable in troubleshooting the system, contact an AMI Technical Support Representative for assistance. Refer to “Additional Technical Support” on page 207.
Page 218 If the Model 430 Programmer is found to have been WARNING connected to an incorrect power source, return the instrument to AMI for evaluation to determine the extent of the damage. Frequently, damage of this kind is not visible and must be determined using test equipment.
Page 219 MERICAN AGNETICS ERVICE ROUBLESHOOTING INTS d. Replace the fuse and securely fasten the Model 430 Programmer top cover. Reconnect the power-cord. 3. Verify the input voltage selector switch on the Model 430 Programmer printed circuit board is in the proper position for the available input power. Checking the input voltage selector requires removal of the top cover of the Model 430 Programmer.
Page 220 MERICAN AGNETICS ERVICE ROUBLESHOOTING INTS supply is on and the program out connection from the Model 430 Program- mer to the program voltage input to the power supply is intact. 2. Verify the power leads are properly connected to the magnet. 3.
Page 221 MERICAN AGNETICS ERVICE ROUBLESHOOTING INTS 2. Ensure the persistent switch cooldown time is adequate (see page 90). Con- duction-cooled systems may have much longer switch cooldown periods than wet magnet systems. Optionally use the magnet voltage-based switch transition detection method if the shortest possible cooldown time is an important consideration (see page 88).
Page 222 MERICAN AGNETICS ERVICE ROUBLESHOOTING INTS being converted into thermal energy within the cryostat. Analyzing the circumstances under which the high boil-off occurs will help determine what is causing the problem. 1. For magnets equipped with switches for persistent operation, verify that the persistent switch heater power supply is operating at the proper current for the installed switch.
Page 223: Additional Technical Support
DDITIONAL ECHNICAL UPPORT If the cause of the problem cannot be located, contact an AMI Technical Support Representative at (865) 482-1056 for assistance. The AMI technical support group may also be reached by internet e-mail at . Additional technical information, support@americanmagnetics.com...
Page 224 MERICAN AGNETICS ERVICE ETURN UTHORIZATION attention. Please call an AMI representative at (865) 482-1056 for a return authorization number before shipping any item back to the factory.
Page 225: Appendix
MERICAN AGNETICS PPENDIX Appendix AGNET TATION ONNECTORS The two 25-pin D-sub female Magnet Station Connectors are identically wired and connected pin-for-pin internally. Spare connections may be used for custom coil taps or other signals. For maximum noise immunity, use shielded cabling and connect NOTE one end of the shield to the Magnet Station Connector shell.
Page 226 MERICAN AGNETICS PPENDIX AGNET TATION ONNECTORS If the Model 430 Programmer is purchased as part of a magnet system, a Magnet Station Connector instrumentation cable will be provided with the system. Magnet Station Connectors Pin Definitions Function Function LHe Sensor I+ (Red) spare ...
Page 227: Lhe Level / Temp Connectors
AMI Liquid Helium Level Instrument is connected and energized. The LHe level sensor pins are designed for use with an AMI LHe sensor and the wiring for the sensor is to have no live parts which are accessible.
Page 228: Programmer Shunt Terminals
ERMINALS The connectors route the incoming signals from the Magnet Station Connectors to external level and/or temperature instruments. If an AMI Liquid Level Instrument is purchased (with LHe measurement option) with the Model 430 Programmer and magnet system, an LHe level cable will be provided.
Page 229: Current Transducer Connector
MERICAN AGNETICS PPENDIX URRENT RANSDUCER ONNECTOR URRENT RANSDUCER ONNECTOR CURRENT TRANSDUCER Operating the system without the connection between the CAUTION Model 430 and the current transducer (CT) can result in loss of control, and may damage the CT. The current transducer connector, which is only present for the High- Stability Option or systems with a maximum current greater than 250 A, provides pins for connection of the external current transducer (CT) to the Model 430 Programmer.
Page 230: Program Out Connector
MERICAN AGNETICS PPENDIX ROGRAM ONNECTOR ROGRAM ONNECTOR Program Out Connector Pin Definitions Function Function not used not used not used not used not used Program Out Voltage Program Out Common not used not used not used not used not used not used not used not used...
Page 231: Quench I/O Connector
I/O C MERICAN AGNETICS PPENDIX UENCH ONNECTOR I/O C UENCH ONNECTOR The Quench I/O connector provides pins for external quench detection input, external rampdown input, quench detection output, and several other Model 430 status output signals (refer to the table below). The Quench I/O connector is a high density 15-pin D-sub male connector.
Page 232: External Quench Detection Input
I/O C MERICAN AGNETICS PPENDIX UENCH ONNECTOR The external quench detection input allows the user to facilitate his own XTERNAL UENCH quench detection circuitry, the output of which is wired to the Model 430 ETECTION NPUT Programmer. The external input overrides the internal quench detection function of the Model 430 Programmer and cannot be disabled.
Page 233: External Quench Detection Output
Rampdown Input so that when a low helium level occurs in a system, the magnet is safely and automatically ramped down, preventing a magnet quench. AMI offers a cable for this purpose or the user can make a suitable cable to connect pins 5 and 6 of the Aux I/O connector of the Model 1700 instrument to pins 6 and 7 of the 430 Programmer, Quench I/O connector.
Page 234: Auxiliary Inputs Connector
MERICAN AGNETICS PPENDIX UXILIARY NPUTS ONNECTOR UXILIARY NPUTS ONNECTOR The Aux Inputs connector provides pins for external voltage inputs, reserved for future use. The shell lugs of the connector are connected to the Model 430 Programmer chassis ground. The Aux Inputs connector is a high density 15-pin D-sub female connector.
Page 235: Ethernet Connector
MERICAN AGNETICS PPENDIX THERNET ONNECTOR THERNET ONNECTOR The Ethernet connector provides visual (LED) indications of the status: 1. Steady green when a link is established. 2. Blinking amber for network activity as network packets are received or trans- mitted. Ethernet RJ-45 Connector Pin Definitions Mnemonic Function TXD+...
Page 236: Connector
: RS-232 C MERICAN AGNETICS PPENDIX ONNECTOR RS-232 C ONNECTOR The RS-232 connector for legacy devices (pre-Rev 9 internal PCB with firmware prior to version 3.0, see page 197) is a standard DTE 9-pin D- sub male connector. This connector requires a gender changer and null modem adapter to connect with COTS USB-to-serial cables.
Page 237: Abbreviations And Acronyms Used In This Manual
MERICAN AGNETICS PPENDIX BBREVIATIONS AND CRONYMS USED IN THIS ANUAL BBREVIATIONS AND CRONYMS USED IN THIS ANUAL Abbreviations and Acronyms Term Meaning AC; ac Alternating Current; strictly, electrical current that periodically reverses direc- tion. Typically used also to describe an electrical power source in terms of the voltage.
Page 238 MERICAN AGNETICS PPENDIX BBREVIATIONS AND CRONYMS USED IN THIS ANUAL Abbreviations and Acronyms (Continued) Term Meaning Power supply output voltage Electrostatic Discharge FIFO First-in / First-out File Transfer Protocol i, I Electrical current flow Ic, I Critical current, the maximum recommended current for at a given supercon- ductor temperature Power supply output current International Electrotechnical Commission...
Page 239 MERICAN AGNETICS PPENDIX BBREVIATIONS AND CRONYMS USED IN THIS ANUAL Abbreviations and Acronyms (Continued) Term Meaning Persistent switch; a switch which, if perfectly realized, has zero resistance when at superconducting temperatures. An integrated heater element allows the switch to be heated for purposes of charging or discharging a supercon- ducting magnet.
Page 240: Short-Sample Mode
Vss in microvolts. An external gain factor of 5. Contact an AMI Technical Support Representative for details on how the Short-Sample Mode can be enabled and the latest data acquisition options for microvolt sampling.
Page 241 Model 430 is operating in Short-Sample Mode: CONFigure:VOLTage:LIMit CONFigure:COILconst CONFigure:RAMPDown (all subcommands) CONFigure:RAMP:RATE:FIELD CONFigure:FIELD:UNITS CONFigure:PSwitch (all subcommands) 6. AMI offers an external low-noise amplifier to scale microvolt sample voltages to a range that can be read by AUX Input 2.
Page 242 MERICAN AGNETICS PPENDIX HORT AMPLE CONFigure:LOCK:PSwitch:CONTRol CONFigure:LOCK:PSwitch:SETtings CONFigure:LOCK:VOLTage:LIMit CONFigure:LOCK:VOLTage:VS-VM CONFigure:LOCK:QUench:RATE CONFigure:LOCK:FIELD-CURRent CONFigure:LOCK:FIELD:UNITS CONFigure:LOCK:COILconst CONFigure:LOCK:ABsorber CONFigure:LOCK:RAMPDown CONFigure:QUench:RATE CONFigure:ABsorber INDuctance? VOLTage:SUPPly? VOLTage:LIMit? VOLTage:MAGnet? CURRent:MAGnet? COILconst? PSwitch? (all subcommands) PERSistent? LOCK:PSwitch:CONTRol? LOCK:PSwitch:SETtings? LOCK:CURRent:RATING? LOCK:VOLTage:LIMit? LOCK:VOLTage:VS-VM? LOCK:QUench:RATE? LOCK:FIELD-CURRent? LOCK:FIELD:UNITS? LOCK:COILconst? LOCK:ABsorber? LOCK:RAMPDown? QUench:RATE? ABsorber? RAMP:RATE:FIELD? FIELD:MAGnet? FIELD:TARGet?
Page 243: Power Supply Details
AMI Model 430 Programmer. An AMI Model 430 Power Supply Programmer and one or more Model 4Q06125PS Power Supplies are configured to make up the various high-current systems. Each Model 4Q06125PS is a ±6 V, ±125 A, four- quadrant, voltage and current stabilized DC supply.
Page 244: High-Current Four-Quadrant Supply
8. Details for the stand-alone units are provided for reference only. Many of the basic power supply parameters will not apply in the closed loop current feedback system application with the AMI Model 430 Programmer controlling current in the outer loop.
Page 245 MERICAN AGNETICS PPENDIX OWER UPPLY ETAILS Model 4Q06125PS Electrical Specifications (Continued) Specification Rating / Description Condition Efficiency Minimum, source Switching frequency 50 KHz PFC Stage EMC (Electromagnetic Compatibility) EN61326-1 (1997) Class A equipment Compliance EN61000-4-2 Electrostatic discharge Radiated RF EN61000-4-3 Radio Frequencies EMC immunity to: EN61000-4-4...
Page 246 Weight Metric 24.1kg Source power 3-pin IEC connector Load connections Nickel-plated copper bus bars Connections and Sensing Output Configured by AMI Factory 7-pin terminal block Controls Terminal Block Analog I/O control 15-pin D female port Maximum current: 150 A Short-circuits the output when there is an inter-...
Page 247 MERICAN AGNETICS PPENDIX OWER UPPLY ETAILS INGLE IMENSIONAL PECIFICATIONS 4Q06125PS Outline Drawing, Front and Rear Views...
Page 248 MERICAN AGNETICS PPENDIX OWER UPPLY ETAILS 4Q06125PS Outline Drawing Top and Side Views...
Page 249: Low-Current Four-Quadrant Supplies
5 mA p-p AC 115 VAC, 60 Hz OUTPUT CHARACTERISTICS 20 to +20 VDC O Max Output Range AMI limits voltage to ±10 VDC 5 A to +5 A O Max Closed Loop Gain Voltage Channel Voltage 20 to +20 VDC Source/sink AMI limits voltage to ±10 VDC...
Page 250 MERICAN AGNETICS PPENDIX OWER UPPLY ETAILS...
Page 251 166 quench control 178 abbreviations and acronyms ramping commands 172 absolute limits ramping states 175 status commands 155 AMI internet e-mail address switch heater control 177 AMI web address system commands 152 trigger commands 182 applicable hardware trigger functions 181...
Page 252 MERICAN AGNETICS NDEX Model 430 remote control application 189 ramp rate menus 64 data logging ramping functions 125 RS-232 communication setup 192 de-energizing the system setup 112 default display modes system setup 112 default password external quench detect default settings external rampdown DHCP external rampdown input...
Page 253 MERICAN AGNETICS NDEX offset 97 stability setting 81 slope 97 locked inductance, calculate long discharge time installation loop gain earth ground 19 magnet system characteristics 21 mounting 20 power 21 magnet current power supply and Programmer ground 22 drifts while PSwitch cooling 207 unpacking 20 oscillating 203 interconnects...
Page 254 MERICAN AGNETICS NDEX Vs / Vm lock 104 viewing established magnet current 61 Model 430 persistent switch appears to lock up 207 abbreviations 223 remote control application 189 beep 59 control 117 Multi-Axis Systems cooled time 55 cooling 53 cooling gain 55 current 88 net settings submenu current detect 87...
Page 255 MERICAN AGNETICS NDEX quench, magnet setup lock xiii Shift Key Commands Decrement Field 68 Field <> Current 68 ramp modes Field Units 68 ramp rate time units Fine Adjust 69 Increment Field 67 ramp segments Persist. Switch Control 59 rampdown, external - see external rampdown Persistent Switch Heater Current 69 Ramp Rate 63 ramping...
Page 256 205 cannot exit persistent mode 205 charges slowly 204 communication failures 206 contacting AMI support 207 excessive LHe losses 206 magnet current drifts while PSwitch cooling 207 no field display 206 no power 202 operating voltage 21...

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