Caen NGPS User manual

NGPS –User’s Manual
1
NGPS
High-Stability and High-Precision
New Generation
Power Supply Series
User’s Manual
All Rights Reserved
© CAEN ELS s.r.l. & Energy Technology s.r.l.
Rev. 1.10 –November 2022
MAGNET POWER SUPPLY SYSTEMS

NGPS –User’s Manual
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This product is
&
compliant.
CAEN ELS s.r.l.
via Vetraia, 11
55049 Viareggio (LU) –Italy
Mail: [email protected]
Web: www.caenels.com
OC Energy Technology s.r.l.
via della Solidarieta’, 2/1
40056 Valsamoggia (BO) –Italy
Mail: [email protected]
Web: www.ocem.eu

NGPS –User’s Manual
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User Manual –Models –Options –Custom Models
This manual covers the following standard NGPS Power Supplies models:
•NGPS 100-100E(H)
•NGPS 120-50E(H)
•NGPS 150-60E(H)
•NGPS 200-50E(H)
•NGPS 400-30E(H)
•NGPS 200-40E(H)
•NGPS 200-30E(H)
•NGPS 200-60E(H)
•NGPS 300-25E(H)
•NGPS 300-30E(H)
•NGPS 150-70E(H)
•NGPS-CAX 100-100E
•NGPS-CAX 200-40E
•NGPS-CAX 200-50E
•NGPS-CVF 30-300E
And it is also applicable to the basic functions of the following custom NGPS Power
Supplies models:
•NGPS 600-15EH **
•NGPS 1100-5EH **
•NGPS 400-30EH **
•NGPS 160-60EH **
•NGPS 200-25EH **
•NGPS 160-30EH **
•NGPS-CQD 1100-5EH **
•NGPS-CQD 600-10EH **
•NGPS-CQD 600-15EH **
•NGPS-CQD 600-5EH **
•NGPS-CMD 150-70E **
•NGPS-CMD 200-50E **
•NGPS-CMD 300-30E **
•NGPS-CAI 300-18EH
•NGPS-CAI 400-25EH
•NGPS-CAI 300-36EH
**: These models are not fully compatible with “Remote Control Manual” from
CAEN ELS S.r.l., are not compatible with other Firmware other than the factory one,
and support for these models must be required at: sup[email protected]
This manual also covers the basic functions of Custom Models named as following:
NGPS Cxx-xxx-yyyZK
Where:
•Cxx is an optional code only present in custom bespoke models
•xxx is a number between 30 and 1100
•yy is a number between 5 e 300
•Z can be “E” or “A” or “U”
•K can be “H” or blank

NGPS –User’s Manual
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Table Of Contents
1. INTRODUCTION..............................................................................................11
1.1 NGPS OVERVIEW .........................................................................................11
1.2 NGPS AT A GLANCE.....................................................................................14
1.3 MODES OF OPERATION..................................................................................17
Regulation Mode......................................................................................17
Control Mode...........................................................................................17
Update Mode............................................................................................18
1.4 INTERLOCK AND STATUS SIGNALS................................................................19
Interlock Enable/Disable Mask................................................................21
Interlock Activation Level Mask ..............................................................21
Interlock Intervention Time......................................................................21
Interlock Identification Name ..................................................................21
Output Status............................................................................................21
1.5 REMOTE SENSING .........................................................................................22
1.6 TRIGGER AND ANALOG CONTROL INPUTS.....................................................25
Trigger Input............................................................................................25
Analog Control Input...............................................................................26
1.7 FRONT PANEL INDICATORS...........................................................................27
1.8 INTERNAL PROTECTIONS...............................................................................27
Earth Leakage Current ............................................................................28
Earth Fuse................................................................................................28
Regulation Fault ......................................................................................28
OVerPower - OVP ...................................................................................29
OVerTemperature - OVT .........................................................................29
DC-Link Undervoltage.............................................................................30
1.9 CUSTOM MODELS .........................................................................................31
NGPS-AUX yyy-zzzK ...............................................................................31
NGPS-CAI yyy-zzzEH..............................................................................31
2. INSTALLATION...............................................................................................33
2.1 PREPARATION FOR USE.................................................................................33
2.2 INITIAL INSPECTION ......................................................................................33
2.3 MOUNTING....................................................................................................34
2.4 AC INPUT POWER CONNECTION ...................................................................35
AC Source Requirements .........................................................................38
2.5 LOAD CONNECTION ......................................................................................38
Wire Selection..........................................................................................38
Lug terminal connection ..........................................................................39
2.6 HYDRAULIC PLUG CONNECTION...................................................................41
2.7 GROUNDING OUTPUTS ..................................................................................41
2.8 PARALLEL OPERATION..................................................................................41
3. LOCAL CONTROL..........................................................................................46
3.1 NAVIGATION SWITCH....................................................................................46
3.2 DISPLAY........................................................................................................47
Power-up..................................................................................................47
Home Screen............................................................................................48
Menu Page ...............................................................................................49

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Control Page.....................................................................................50
Config Page......................................................................................50
Advanced Page.................................................................................51
4. NGPS UTILITIES .............................................................................................53
5. MECHANICAL DIMENSIONS.......................................................................54
6. TECHNICAL SPECIFICATIONS ..................................................................56

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Document Revisions
Document Revision
Date
Comment
0.1
February 7th 2016
Draft Release
0.2
February 22nd 2016
Pre Release Version
0.3
March 15th 2016
Visual PS information added and
corrected
0.4
May 27th 2016
Added Safety Information and
Installation Chapter 2. Removed
parts from Introduction and
Chapter 1
1.0
September 1st 2016
Official Release
1.01
February 1st 2017
Layout change
1.02
September 20th 2017
Chapter 2 reorganization
1.1
November 15th 2017
Added Auto shut down feature on
Display
1.2
November 18th 2018
Added 100-100 model
1.3
February 25th 2019
Added 250-30, 150-60 and 300-30
models. Added parallel operation
1.4
May 2nd 2019
Parameters table updated,
typographical errors fixed, added
NGPS-CAX yyy-zzzK custom
models info
1.5
June 18th 2019
Waveform execution minimum
period updated information
1.6
October 23rd 2019
Added new standard and custom
models and related information
1.7
March 9th 2022
Removed 140-50 model
1.8
April 2022
Removed Remote Control sections
1.9
September 2022
Add NGPS-CAI
1.10
November 22nd 2022
Added CE-UKCA compliance
logos

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Safety information
The following table shows the general environmental requirements for a correct
operation of instruments referred in this User’s Manual:
The following symbols are used within this manual or are reported on the NGPS
box and along this manual:
CAUTION Risk of Electrical Shock
Caution: Documentation must be consulted in all cases
where this symbol is marked
Indicates ground terminal
Protective Ground Conductor Terminal
Environmental Conditions
Requirements
Environment
Indoor use
Operating Temperature
0°C to 40°C
Operating 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)
Water Cooled Model
Max Water Input Pressure
(continuous)
8 bar
Water Pressure drop
1.5 bar
Water Flow
1.5 l/min

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0
Off (Power)
I
On (Power)
The WARNING sign denotes a hazard. An attention to a
procedure is called. Not following the procedure
correctly could result in personal injury. A WARNING
sign should not be skipped and all indicated conditions
must be fully understood and met
The CAUTION sign denotes a hazard. An attention to a
procedure is called. Not following procedure correctly
could result in damage to the equipment. Do not proceed
beyond a CAUTION sign until all indicated conditions
are fully understood and met
CAEN ELS s.r.l. and Energy Technology s.r.l. will either repair or replace any
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, accident or any abnormal conditions or operations.
Please read carefully the manual before operating any part of the instrument
Do NOT open the BOX TOP
COVER
CAEN ELS s.r.l. and Energy Technology s.r.l. decline all responsibility for
damages or injuries caused by an improper use of the Modules due to negligence
on behalf of the User. It is strongly recommended to read thoroughly this User's
Manual before any kind of operation.
CAEN ELS s.r.l. and Energy Technology s.r.l. reserve the right to change partially or
entirely the contents of this Manual at any time and without giving any notice.
WARNING
CAUTION
WARNING

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Disposal of the Product
The product must never be dumped in the Municipal Waste. Please check your local
regulations for disposal of electronics products.

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•Do not use this product in any manner not specified by
the manufacturer. The protective features of this product
may be impaired if it is used in a manner not specified in
this manual.
•Do not use the device if it is damaged. Before you use the
device, inspect the instrument 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 provided cables.
•Turn-off the device before establishing any connection.
•Do not operate the device with the cover removed or
loosened.
•Do not install substitute parts or perform any
unauthorized modification to the product.
•Return the product to the manufacturer for service and
repair to ensure that safety features are maintained.
•Installation shall be made by Qualified Personnel
according to the Electrical Codes and Standards.
•Operation of the NGPS units shall be carried out by
professional skilled personnel.
WARNING

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1.Introduction
This chapter describes the general characteristics and main features of the NGPS –
New Generation Power Supply series.
1.1 NGPS Overview
High performances, high efficiency, high stability, easiness of configuration and
maintenance are the key features of the NGPS power supply series, generated by the
joint effort of CAEN ELS and OCEM –Power Electronics.
The NGPS is an independent current (or voltage) digitally controlled monopolar
power supply module. There are available different models with different current and
voltage ranges. Standard models are air-cooled units, enclosed in 19-inch 3U crates.
Alternatively, custom models are enclosed in 19-inch crates with different unit
height size, depending upon space requirements of internal electronics.
Among custom models, several options are available such as:
•Auxiliary 230 Vac power supply separated from the main power supply:
NGPS-CAX models;
•Coordination with Quench Detector and Heater optional crates for
superconductive magnet applications: NGPS-CQD models;
•Voltage generator: NGPS-CVF models;
•Custom data communication protocol: NGPS-CMD models.
Moreover, water cooled model are available, whose names ends with “H”letter.
Table 1a: Standard NGPS models reports standard air-cooled units in 3U size, while
Table 1b reports the list of available custom models.
Although this manual refers to standard models, it can also be applied to custom models
for what regards the basic functionalities.
Anyway, dedicated manual addendum for custom models are available.

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Table 1a: Standard NGPS models
Model Name
Current (A)
Voltage (V)
Max. Power (kW)
NGPS 100-100E
100
100
10
NGPS 120-50E
120
50
6
NGPS 150-70E
150
70
10,5
NGPS 200-50E
200
50
10
NGPS 200-40E
200
40
8
NGPS 200-30E
200
30
6
NGPS 200-60E
200
60
12
NGPS 300-25E
300
25
7,5
NGPS 300-30E
300
30
9
NGPS 400-30E
400
30
12
NGPS-CAX 100-100E
100
100
10
NGPS-CAX 200-40E
200
40
8
NGPS-CAX 200-50E
200
50
10
NGPS-CVF 30-300E
30
300
9
Model Name
Current (A)
Voltage (V)
Max. Power (kW)
NGPS 160-30EH
160
30
4,8
NGPS 160-60EH
160
60
9,6
NGPS 200-25EH
200
25
5
NGPS 400-30EH
400
30
12
NGPS 600-15EH
600
15
9
NGPS-CQD 600-5EH
600
5
3
NGPS-CQD 600-10EH
600
10
6
NGPS-CQD 600-15EH
600
15
9
NGPS-CQD 1100-5EH
1100
5
5,5
NGPS-CMD 150-70E
150
70
10,5
NGPS-CMD 200-50E
200
50
10
NGPS-CMD 300-30E
300
30
9
NGPS-CMD 300-18EH
300
18
5.4

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Table 1b: Customized NGPS models
The NGPS units are available in three different values of nominal three-phase
input voltage:
Version
Three-Phase Input
“A”
208 V (AC)
“E”
400 V (AC)
“U”
480 V (AC)
Table 2: NGPS versions
The NGPS module is composed of a single 19-inch standard crate. The power
unit 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 an 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
an embedded Linux OS, that supervises all processes as communication, diagnostics
and local interface handling.
Remote communication is guaranteed by means of an Ethernet 10/100/1000
autosensing socket, mounted on the front panel of the power unit. The power supply
can be also monitored and controlled via a graphic high-resolution color display
featuring user-friendly menus and a navigation switch for moving within them.
In addition to the standard Ethernet interface, it is possible to communicate with
the unit using the SFP-ports on the front panel. This interface allows to communicate
with the unit using a proprietary packet structure with a very high updating rate (more
than 10 kHz). These ports are connected directly to the FPGA logic, allowing the given
packet to be elaborated directly by the hardware logic.
This approach eliminates the software stratification that manages the packet and
the computational time is smaller and deterministic, allowing a very high updating rate
of the setpoint, giving the user more flexibility and excellent rates for the digital control
of the power supply.
NGPS-CMD 400-25E
400
25
10
NGPS-CMD 300-36E
300
36
10.8

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1.2 NGPS at a Glance
The standard NGPS system is composed by a single 19-inch 3U crate. The NGPS
unit and its I/O connections can be easily seen in Figure 1 (front view), Figure 2 (rear
view for air cooled models) and .
Figure 1: NGPS front view
On the front side (Figure 1, no differences between air- and water-cooled units)
of the NGPS power supply are placed: a circuit breaker, a colour graphic display with
navigation switch for the local control and monitor of the module, three communication
sockets (2 SFPs and one Ethernet ports), four status LEDs and one USB device
connector.
Figure 2: Air-cooled NGPS rear view
On the rear side of the unit (Figure 2) are placed: three-phase input connector,
earth connection terminal, output terminals, the D-Sub 15 Female Pin I/O connector

NGPS –User’s Manual Installation
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and a connector for the voltage remote sensing. Exclusively for water cooled models,
on the rear panel are present two plugs to the hydraulic system also (input plug the left
one –output plug the right one), highlighted in Figure 3: Water cooled NGPS rear
view.
Figure 3: Water cooled NGPS rear view. Plugs for the
connection to the hydraulic system are highlighted
The connectors used for water cooling are quick connecting types as follows:
The connectors are of model PLC42006 and have the following main
specifications (PLC42006 - 3/8 Hose Barb Non-Valved Panel Mount CPC Coupling
Insert):
•Material: Acetal;
•Pressure Range: Vacuum to 120 psi, 8.3 bar;
•Color: White;
•Temp. Range: -40°F to 180°F (-40°C to 82°C);
•Mounting Option: Panel Mount;
•Seal Options: BUNA-N;
•Valve Spring: 316 Stainless Steel.

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The corresponding mating hydraulic plug (to be plugged into the power units) is
the PLCD17006, which is as follows:
•Material: Acetal;
•Pressure Range: Vacuum to 120 psi, 8.3 bar;
•Color: White;
•Temp. Range: -40°F to 180°F (-40°C to 82°C);
•Mounting Option: Free Floating;
•Seal Options: BUNA-N;
•Valve Spring: 316 Stainless Steel.
Custom models may mount additional I/O connectors; these cases are covered in
Section 1.9.

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1.3 Modes of Operation
The NGPS system has multiple features and multiple configurations that allow
using the unit for a very widespread topology of applications.
A brief summary of the basic configurations that the unit is able to handle are
hereafter presented.
Regulation Mode
The NGPS can be used as either current-controlled or voltage-controlled bipolar
unit, namely:
•C.C. mode: it is the Constant Current regulation mode. The power supply
regulates the output current set by the user;
•C.V. mode: it is the Constant Voltage regulation mode. The power supply
regulates the output voltage set by the user.
In C.V. mode it is possible to use the remote sensing terminals (on the rear side)
that allow regulating the output voltage directly on the load, thus compensating the
voltage drops due to the output cables. The maximum voltage drop that the power
supply is able to compensate is of 1V.
Control Mode
The NGPS unit can be controlled in three main different ways, hereafter listed:
•LOCAL control: the unit can be controlled directly via the front panel color
display and the navigation switch. When the unit is set in LOCAL mode, it is
possible to perform readings and monitor the unit from the remote interface
also but any setting command is denied;
•REMOTE control: the unit is controlled via the TCP-IP Ethernet interface.
The setting and control of the unit can be performed exclusively via this
interface, while monitoring is still possible from the local display;

Installation NGPS –User’s Manual
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Update Mode
The current or voltage setting of the unit can be performed in four different
modes:
•NORMAL: the update of the set-point (current or voltage, depending on the
regulation mode, see Section 1.3.1) is performed as soon as a new set-point
is received via the remote, local or fast interfaces;
•WAVEFORM: the update of the set-point is performed on a specific timing
(defined as a “waveform” attribute, more information in the Remote Control
Manual) and it is done internally;
•TRIGGER: the set-point is updated by an external event –i.e. a hardware
trigger coming from the rear BNC connector. Please note that this mode of
operation is obtainable only on the units that have the external trigger input
connector installed (ordering option –factory configurable);
•ANALOG INPUT: the unit is controlled by an external signal that is fed to
the rear BNC connector. The unit acts as a C.C. or C.V. generator depending
on the pre-set regulation mode (see Section 1.3.1). This option is available in
units that have been factory configured only (ordering option).
Please note that the last two Update Modes (Trigger Input and/or the Analog
Control Input) are available only in models that have been factory configured at the
time of purchase.

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1.4 Interlock and Status Signals
The NGPS module has four configurable dry-contact input interlocks and two
output status signals that are directly available on the D-Sub 15 Pin Female connector
on the rear panel (Figure 4).
A mating connector, a standard D-Sub 15 Pin Male type, can be installed in
order to use/access these available signals.
Figure 4: I/O Connector
The pin index of the D-Sub 15 rear connector is summarized in the following
table:
Pin Number
Signal name
#1
Interlock #1 return
#2
Interlock #2 return
#3
Interlock #3 return
#4
Interlock #4 return
#5
DO NOT CONNECT
#6
DO NOT CONNECT
#7
Solid State Relay- Terminal #2
#8
Solid State Relay- Terminal #1
#9
Interlock #1 input
#10
Interlock #2 input
#11
Interlock #3 input
#12
Interlock #4 input
#13
Magnetic Relay Common Contact (C-TAP)
#14
Magnetic Relay Normally Closed Contact (NC-TAP)
#15
Magnetic Relay Normally Open Contact (NO-TAP)
Table 3: D-sub 15 Pin pin-out
Pin #1
Pin #8
Pin #9
Pin #15

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Magnetic Relay Contact (C-TAP, NO-TAP & NC-TAP) and
Solid State Relay Terminals (Terminal #1 & #2) shall not float
more than ±60 VDC above/below chassis ground.
Interlocks input and return pins shall not float more than ±60
VDC above/below chassis ground.
Voltage between relay C-TAP and NC-TAP or NO-TAP pins
shall never exceed ± 48 V.
Maximum current rating for the Magnetic Relay is 1 A;
current trough pins #13 and #14 or pins #13 and #15 shall
never exceed 1 A.
Maximum current rating for the Solid State Relay is 400 mA;
current trough pins #7 and #8 shall never exceed 0.4 A.
Do not apply voltage between any input interlock and its
corresponding return.
The interlock pins are galvanically isolated from ground and outputs terminal;
nevertheless, the absolute maximum voltage (w.r.t. to ground) that pins can sustain is
48 V. The two interlocks inputs have their own return connection. The interlock is
hardware-activated when the input pin and its corresponding return pin are shorted.
The system is provided with four external interlock inputs that can be easily
configured using the VISUAL PS graphic software (provided with the power unit, see
the Remote Control Manual) or directly using the standard power supply commands. A
detailed description of the configuration of the external interlock using the power
supply commands is hereafter given.
Two output status signals provide the output status of the power module: when
the module is ON, the Normally Closed contact (NC-TAP) switch opens and vice-versa.
The Solid-state relay close the terminals when the module is ON. The behaviour of the
solid state relays (i.e. the status of #7 and #8 in Table 3) can be modified changing the
value of an internal cell memory (cell #74). Please refer to the Remote Control Manual
for more information.
WARNING
CAUTION