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FAST-Bi-1K5 – User’s Manual  

 

11 

1.

 

Introduction 

This chapter describes the general characteristics and main features of the FAST-

Bi-1K5 bipolar bidirectional and regenerative Power Supply (PS) series. 

1.1

 

FAST-Bi-1K5 Overview 

High  performances,  extreme  stability,  easiness  of  configuration  as  well  as 

bidirectional and regenerative characteristics are the key features of the FAST-Bi-1K5 
power supply series.  

 

The  FAST-Bi-1K5  is  an  independent  current-  or  voltage-controlled  digital 

bipolar, bidirectional and regenerative power supply module. Different models having 
different current and voltage output ratings are commercially available, see Table 1; the 
table reports also the classification between High-Current (HC) and High-Voltage (HV) 
models. 
 

Model Name 

Current 

Voltage 

HC vs HV 

FAST-Bi-1K5 20-100 

±20 A 

±100 V 

HV 

FAST-Bi-1K5 30-50 

±30 A 

±50 V 

HV 

FAST-Bi-1K5 50-40 

±50 A 

±40 V 

HC 

FAST-Bi-1K5 100-20 

±100 A 

±20 V 

HC 

FAST-Bi-1K5 150-10 

±150 A 

±10 V 

HC 

Table 1: 

FAST-Bi-1K5 standard models

 

 

The FAST-Bi-1K5 module is compact and fits in a single 19-inch 2U standard 

crate. The PS (Power Supply) implements a completely digital control loop with a Pulse 
Width Modulation (PWM) generation technique that allows adapting the system to any 
load condition.  
 

 
The  control  board  houses  a  dedicated  FPGA  with  integrated  dual-core  ARM 

CPU.  The  loop  regulation  task  is  performed  directly  by  the  FPGA  logic,  in  order  to 
have high performance and deterministic loop control. On the ARM CPU it is installed 

Summary of Contents for FAST-Bi-1K5 Series

Page 1: ...i 1K5 User s Manual 1 FAST Bi 1K5 1 5 kW Bipolar Bidirectional and Regenerative Digital Power Supply Series User s Manual All Rights Reserved CAEN ELS S r l Rev 0 5 January 2024 MAGNET POWER SUPPLY SY...

Page 2: ...anual 2 This product is compliant CAEN ELS s r l in AREA Science Park SS14 km 163 5 loc Basovizza 34149 Trieste TS Italy Mail info caenels com Web www caenels com Registered office via Vetraia 11 5504...

Page 3: ...FAST Bi 1K5 User s Manual 3...

Page 4: ...050040X FAST Bi 1K5 100 20 FB1K5100020X FAST Bi 1K5 150 10 FB1K5150010X This manual covers the following optional units FB1K5OPT0001 Analog Control Auxiliary ADC Trigger Input and K type thermocouple...

Page 5: ...2 7 GROUNDING OUTPUTS 24 2 8 FUNCTIONAL GROUND 24 2 9 FIRMWARE UPDADE 25 Firmware upgrade from the GUI 25 3 FRONT REAR PANEL CONTROLS AND CONNECTORS 27 3 1 EXTERNAL INTERLOCKS AND OUTPUT STATUS 27 3 2...

Page 6: ...ink Fault 44 Output Overcurrent Overvoltage 44 Interlock 1 2 3 4 44 Fans Error 44 4 ADVANCED FUNCTIONS 45 4 1 WAVEFORM 45 5 LOCAL CONTROL 46 5 1 NAVIGATION SWITCH 46 5 2 LOCAL DISPLAY 46 Power up 47 H...

Page 7: ...23 Preliminary Release 0 1 December 19th 2023 Text revised removed all references to TCP IP commands 0 2 December 20th 2023 Major text revision 0 3 December 21th 2023 Major text revision 0 4 January 4...

Page 8: ...ating Humidity 20 to 80 RH non condensing Altitude Up to 2000 m Pollution degree 2 Overvoltage Category II Storage Temperature 10 C to 60 C Storage Humidity 5 to 90 RH non condensing The following sym...

Page 9: ...product within the guarantee period if the Guarantor declares that the product is defective due to workmanship or materials and has not been caused by mishandling negligence on behalf of the User acci...

Page 10: ...nstrument for possible cracks or breaks before each use Do not operate the device around explosives gas vapor or dust Always use the device with the cables if provided Turn off the device before estab...

Page 11: ...e Table 1 the table reports also the classification between High Current HC and High Voltage HV models Model Name Current Voltage HC vs HV FAST Bi 1K5 20 100 20 A 100 V HV FAST Bi 1K5 30 50 30 A 50 V...

Page 12: ...us In addition to the standard Ethernet interface it is possible to communicate with the PS using the SFP ports on the front panel This interface allows the communication using a proprietary packet st...

Page 13: ...he rear panel for the high current and high voltage models respectively Figure 1 FAST Bi 1K5 front view The front side of the FAST Bi 1K5 Figure 1 is equipped with 1 a power switch 2 a colour graphic...

Page 14: ...tor for thermocouples The rear side of the PS Figure 2 and Figure 3 for HC and HV models respectively is equipped with 1 D Sub 15 Female Pin I O connector for external interlock inputs and status outp...

Page 15: ...e the remote sensing terminals that allow regulating the output voltage directly on the load thus compensating the voltage drops on the output cables The FAST Bi 1K5 is capable of compensating a volta...

Page 16: ...signal that is fed to the rear BNC connector The PS acts as a C C or C V generator depending on the Regulation Mode Please note that this mode of operation is possible only on PSs having installed the...

Page 17: ...n 3 AC Input Power Connection Connect the PS to the AC source 5 Load connection Wire size selection Remote Sensing 4 First switch on Switch on checkout procedure Table 2 Installation checklist 2 2 Ini...

Page 18: ...n inlets ensuring at least 10 cm of unrestricted air space at the front and the read of the unit Rack Mounting The FAST Bi 1K5 series is designed to fit in a standard 19 equipment rack Use a support b...

Page 19: ...lt is an increased contact resistance and an excessive temperature rise In addition corrosion caused by pickling or fluxes has been observed on soldered conductor ends Notch fractures at the transitio...

Page 20: ...N 691340400003 able of housing cables with 0 2 3 3 mm2 of diameter tightening torque required 0 56 N m AC input cord is not provided with the PS Refer to section 2 4 2 for recommended cables and to F...

Page 21: ...cables are not provided with the PS The AC input cables must satisfy the characteristics reported in Table 3 AC Input Cable 3x 2 5 mm2 2 wire and a safety ground stranded copper 300 V 105 C minimum r...

Page 22: ...5 16 8 25 0 80 62 5 41 5 25 12 5 35 0 57 87 5 58 35 17 5 11 5 Table 4 Wire selection If Table 4 values are used the maximum voltage to the load will be limited to OVnom CVmax DVcable where OVnom is t...

Page 23: ...contact with hazardous voltage ensure that the load and its connections have no accessible live parts Ensure that the load wiring insulation ratings is greater than or equal to the maximum output vol...

Page 24: ...tput disable Refer to Earth Fuse section 3 7 5 and Earth Leakage section 3 7 6 To allow output floating operation it is sufficient to remove the Earth Fuse from the fuse holder and set the PS for Floa...

Page 25: ...e correspondent product page in the Software Firmware section as reported in Figure 10 Install only firmware files with updt extension downloaded from the CAEN ELS website www caenels com Figure 10 Fi...

Page 26: ...Install button as shown in Figure 12 Figure 12 Upload firmware file The firmware update procedure can take up to 5 minutes to complete At the end of the update procedure the PS is automatically reboot...

Page 27: ...Magnetic Relay Normally Open NO when the PS output is OFF the Magnetic Relay is in open circuit viceversa when the PS output is ON the Magnetic Relay is in short circuit Normally Closed NC when the P...

Page 28: ...y 1 15 Mag Relay NO 8 Solid State Relay 2 Table 6 Corresponding Pin Function on Rear DB15 connector The absolute maximum current that can be sunk by the relays are shown in the following table Relay P...

Page 29: ...our interlocks inputs have their own return connection The interlock is hardware activated when the input pin and its corresponding return pin are shorted For more details on external interlock and st...

Page 30: ...load thus neglecting eventual voltage drops on the output cables up to 0 5 V It is strongly recommended to use twisted cables when using the remote sensing feature to limit the pick up noise The FAST...

Page 31: ...ent points e g the load terminals it would be necessary to connect Pin 1 and Pin 4 as in Figure 17 Figure 17 Example of Remote Sensing 3 3 Persistent Switch The FAST Bi 1K5 is equipped with a Persiste...

Page 32: ...e maximum PCS output current safely sustained by internal electronics is the unsafe operating area The lower region between the blue curve and red curve is considered safe CAUTION The Persistent Switc...

Page 33: ...and for an additional conversion ADC auxiliary channel AUX IN see Figure 20 An input connector for K type thermocouple is also present Figure 20 SDA jack input connectors and K type for thermocouple A...

Page 34: ...indeed the PS generates an output which is proportional to the analog control input signal This Analog Control Input accepts signals ranging from 10V to 10V corresponding to Full Scale to Full Scale...

Page 35: ...o the scale factor that needs to be saved to the PS for a correct reading is 216 1 0 0038 K type thermocouple connector The option FB1K5OPT0001 includes the possibility to connect a K type thermocoupl...

Page 36: ...ated cables should exit the cover High Voltage HV Models For High Voltage models HV see Table 1 a PCB terminal block P N 2928703 Farnell is provided on the rear panel see Figure 24 suitable for cables...

Page 37: ...sufficient to open the clamping space by means of a screwdriver To insert or remove the load push a screw driver at an angle similarly to Figure 25 in order to open the clamp to insert or release the...

Page 38: ...tage mode C V STAT green it signals the correct working operation of the module diagnostics by blinking with 1 second period OUT ON blue it signals that the output is enabled The blue LED lights up wh...

Page 39: ...ST Bi 1K5 internal protections is hereafter presented with some more basic considerations on their operation and use Faults Overtemperature DC Link Fault Input Overcurrent Overpower Earth Leakage Eart...

Page 40: ...o account the ratings of the specific model It is necessary to reset the status register and to get rid of the fault cause before turning the PS back on again Input OVerCurrent OVC The internal curren...

Page 41: ...output voltage condition The PS recognizes that is not able to cover the difference between the set point i e 10 A and the actual output current and generates a regulation fault condition DCCT Error...

Page 42: ...rcuit which includes voltage suppressors triggering semiconductor devices is present on each FAST Bi 1K5 model with different triggering thresholds This circuit allows protecting the PS from unwanted...

Page 43: ...ved for future uses Figure 29 Crow bar enable connector on the rear panel Quench This protection makes the FAST Bi 1K5 a perfect fit for superconducting magnet operation The PS continuously monitors t...

Page 44: ...he limits can be set either by the GUI or by TCP IP commands for the TCP IP commands refer to the Command Reference Manual Interlock 1 2 3 4 Internal protections are also available through four interl...

Page 45: ...he waveform execution can be defined by the user giving flexibility to the waveform generator applicability The minimum time interval for the waveform execution period is limited to 0 1 ms 100 s resul...

Page 46: ...witch reported in Figure 31 of the PS in combination with the local display allows the user to locally control the PS Figure 31 Navigation switch The Navigation Switch allows the user to perform three...

Page 47: ...reen The FAST PS home screen is the first loaded page upon power up or power cycling of the module it is shown in Figure 32 and contains the following information the PS model the module IP address ou...

Page 48: ...logic so that every type of fault is recorded this means that the first fault happening does not ban the other ones to be recorded so that giving users more information permits a better investigation...

Page 49: ...ctangle from the Menu Page The Control Page gives access to the main settings of the PS An example of a Control Page visualization is shown in Figure 36 Figure 36 Control Page From this screen it is p...

Page 50: ...page 1 bottom page 2 The accessible sub pages and or actions from this page are hereafter listed note that the selected sub page is lightened in a lighter shade NETWORK sub page RAMP SR sub page INFO...

Page 51: ...ss the Network Mask and the Gateway In alternative the user may select DHCP ON and the Network configuration will be automatically assigned by DHCP server if present To change the Network configuratio...

Page 52: ...s Manual 52 6 Mechanical Dimensions The mechanical dimensions of the PS are hereafter presented Figure 40 FAST Bi 1K5 Mechanical Drawings of the Front Panel Figure 41 FAST Bi 1K5 Mechanical Drawings f...

Page 53: ...FAST Bi 1K5 User s Manual 53 Figure 42 FAST Bi 1K5 Mechanical Drawings for the HC models...

Page 54: ...ng up to 0 5 V Current Sensing Internal High Precision Current Transducers Current Setting Resolution 24 bit Voltage Setting Resolution 24 bit Output Readback Resolution 24 bit Switching Frequency equ...

Page 55: ...01 1 x Trigger Input LVTTL TTL 1 x Analog Control Input 10 V 1 x Auxiliary ADC Input 16 bit 100 ksps 1 x K type Thermocouple Input Extra Features Waveform execution Quench Protection Remote Firmware U...

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