Bruker BioSpin GRASI-1.0 User manual

NMR Spectroscopy
Bruker BioSpin
think forward
Version
GRASI1.0
Gradient and Shim Interface Unit
User Manual
001

The information in this manual may be altered without notice.
BRUKER BIOSPIN accepts no responsibility for actions taken as a result of use of
this manual. BRUKER BIOSPIN accepts no liability for any mistakes contained in
the manual, leading to coincidental damage, whether during installation or
operation of the instrument. Unauthorised reproduction of manual contents,
without written permission from the publishers, or translation into an other
language, either the entire manual or a part of it, is forbidden.
This manual describes the units as they are at the date of printing. On request, the
manufacturer shall supply circuit diagrams, lists of components, descriptions,
calibrating instructions and any other information for use by qualified personnel of
the user, in charge of repairing the parts of the unit which have been stated by the
manufacturer to be "repairable". Such supply shall in no event constitute
permission to modify or repair the units or approval of the same.
All rights reserved for the units, circuits, processes and appellations mentioned
herein.
This unit is not designed for any type of use which is not specifically described in
this manual. Such use may be hazardous.
For further technical assistance on the GRASI-1.0 unit, please
do not hesitate to contact your nearest BRUKER dealer or
contact us directly at:
BRUKER BioSpin
34 rue de l’Industrie
F-67166 Wissembourg Cedex
France
Phone: + 33 388 066 000
Fax: + 33 388 736 820
Email: [e-mail]
Internet: www.bruker.com
This manual was written by
This manual was edited and desktop published by
© September 29, 2009: Bruker BioSpin
Wissembourg, France
Eric Schatz and Vincent Brosseau
Dominique Wurtz
P/N: Z31905
DWG-Nr: Z4D11081

User Manual Version 001 BRUKER BIOSPIN 3 (41)
Contents
Contents ............................................................................ 3
1 Introduction ........................................................................ 5
2 Safety .................................................................................. 7
2.1 Instructions ......................................................................................... 7
2.2 Labels ................................................................................................ 7
Identifying plate ............................................................................. 7
Manufacturer’s nameplate .............................................................. 8
Warning signs ................................................................................ 9
3 Installation .........................................................................11
3.1 Initial inspection ............................................................................... 11
Mechanical check ........................................................................ 11
Claim for damage ......................................................................... 11
Reshipment and repackaging requirements .................................. 11
Environment requirements ........................................................... 12
3.2 Installation requirements ................................................................... 12
Bench operation ........................................................................... 12
3.3 System check ................................................................................... 12
3.4 Initial turn on procedure .................................................................... 12
4 Operation .......................................................................... 13
4.1 General fonctions ............................................................................. 13
Amplifier selection ........................................................................ 14
Coil code selection ....................................................................... 14
Powering up ................................................................................. 14
Initialisation process .................................................................... 14
Calibration ................................................................................... 14
4.2 Error messages ................................................................................ 15
5 Technical description ....................................................... 17
5.1 General description .......................................................................... 17
5.2 Power requirements .......................................................................... 17
Main characteristics ................................................................ 17
5.3 Front panel connectors ..................................................................... 18
5.4 Front panel indicators ....................................................................... 19
5.5 Front panel buttons ........................................................................... 19
5.6 Rear panel connectors ...................................................................... 19
Gradient Coil Code connector from Gradient set .......................... 19
Status and Command connector from GPSCU .............................. 20
Status and Command connector to amplifier ................................. 21

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Interlock Binder connector ........................................................... 22
Coil Code Binder connector ......................................................... 22
B0 Output Twinaxe connector ...................................................... 23
Interface Connector Ethernet 10/100 ........................................... 23
5.7 Rear panel overview ......................................................................... 24
6 Servicing the GRASI .........................................................25
6.1 Accessing the GRASI unit ................................................................ 25
6.2 Sub Toolbar Information ................................................................... 26
Device Information ...................................................................... 26
Device Status .............................................................................. 27
BIS Content ................................................................................. 28
6.3 Sub Toolbar Basic Operations .......................................................... 29
Reset Error .................................................................................. 29
6.4 Sub Toolbar Maintenance ................................................................. 30
Settings Update ........................................................................... 30
Firmware Update ......................................................................... 31
Device Reset ............................................................................... 32
6.5 Sub Toolbar Diagnostics ................................................................... 33
Event Log .................................................................................... 33
7 Specification .....................................................................35
7.1 General specifications ...................................................................... 35
Figures ............................................................................. 37
Tables ............................................................................... 39

User Manual Version 001 BRUKER BIOSPIN 5 (41)
1
Introduction 1
The GRASI Unit (GRradient And Shim Interface) is an interface device designed
to drive several gradient amplifiers. Its main function is to lead the gradient pulse
sequence signals coming from the Gradient Control Unit to the different amplifiers
(X, Y, Z and B0 channels). The integrated power control function protects the
gradient set connected to the amplifiers from over_voltage, over_current and the
duty cycle is controlled to avoid any power excess on the loads.
Figure 1.1. GRASI Unit diagram
Figure 1.2. GRASI Gradient and Shim Unit
Gradient
Controller GRASI Unit
Channel X
Gradient Amplifier
Channel Z
Gradient Amplifier
Channel Y
Gradient Amplifier
Channel B0
Gradient Amplifier
& DPP

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Introduction

User Manual Version 001 BRUKER BIOSPIN 7 (41)
2
Safety 2
The GRASI is in accordance with the standard IEC/61010-1:2001 safety
Requirements for Electrical Equipments.
Instructions 2.1
The GRASI Unit contains live parts. Using the device with cover removed is
forbidden.
Risk of electrical shocks! Be sure of voltage absence before every intervention on
the device.
The different wirings must be done by an authorized and qualified technician. Use
only the provided cables. Never disconnect any cable during the use of the
device.
Sprinkling or pouring liquids on the device is forbidden. Use a wet or alcohol
soaked rag to clean the EMB.
For corrective actions contact the BRUKER BIOSPIN representative in your coun-
try.
Labels 2.2
Labels are provided to alert operating and service personnel to conditions that
may cause personal injury or damage to the equipment from misuse or abuse.
Please read the labels and understand their meaning.
Identifying plate 2.2.1
The GRASI can be identified by an identifying plate at the front panel of the unit
that has following information.
Figure 2.1. Identifying plate
•(A) Part Number
This field indicates the part number of the product.
A///BC D
E
F

8 (41) BRUKER BIOSPIN User Manual Version 001
Safety
•(B) Variant
This field indicates the variant number that identifies the production category of
the product. The default variant is 00.
•(C) ECL
This field indicates the revision number that identifies the product
configuration. The initial revision is 0.00.
•(D) Serial Number
This field indicates the serial number of the product.
•(E) Type
This field contains the designation of the product.
•(F) Information
This field contains additional information about the product.
Manufacturer’s nameplate 2.2.2
The GRASI can be identified by a manufacturer’s nameplate at the back panel of
the unit that has following information:
Figure 2.2. Manufacturer’s nameplate
•(A) Voltage
This field indicates the input mains voltage of the product.
•(B) Frequency
This field indicates the input mains frequency of the product.
•(C) Phases
This field indicates the number of phases of the mains.
•(D) Power
This field indicates the absorbed power of the product.
•(E) Current
This field indicates the absorbed current of the product.
•(F) Wires
This field indicates number of wires with the ground in the mains cord.
•(G) Part Number
This field indicates the assembly number that identifies the part number of the
product.
Hz
Made in France
VAC
Wires +
A B C Phase
FD KVA Gnd
EAmps
P/N : G

User Manual Version 001 BRUKER BIOSPIN 9 (41)
Labels
Warning signs 2.2.3
Table 2.1. Danger
DANGER!
Please disconnect line cord before opening or prevent potential
hazards such as:
•Electric schock on power supply.
•Contact burn with heatsink.

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Safety

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3
Installation 3
The installation of the device must be done only by an authorized and qualified
technician, in total accordance with the running standards. Every breakdown due
to a non-respect of the following instructions will not be attributable to Bruker and
will not be covered by the guarantee clauses.
Initial inspection 3.1
Mechanical check 3.1.1
If damage of the shipping cardboard is evident, request the carrier's agent to be
present when the instrument is unpacked. Check the equipment for damage and
inspect the panel surfaces for dents and scratches.
Claim for damage 3.1.2
If the unit is mechanically damaged or fails to meet specifications upon receipt,
notify BRUKER or our representative immediately. Retain the shipping cardboard
and packing material for the carriers inspection as well as for subsequent use in
re-turning the unit if necessary.
Reshipment and repackaging requirements 3.1.3
Whenever possible, the original cardboard and packing material should be used
for reshipment. If the original packing material is not available, wrap the
instrument in heavy paper or plastic. Use a strong shipping container. If a
cardboard is used, it should be at least 200 lbs. test material.
Use shock absorbing material around all sides of the instrument to provide a firm
cushion and to prevent from movements inside the container wall on each side.
Protect the front panel by means of cardboard spacers inserted between the front
panel and the shipping cardboard. Make sure that the instrument cannot move in
the container during shipping. Seal the cardboard box with a good grade of
shipping tape and mark the container :
" FRAGILE ELECTRONIC INSTRUMENT. "

12 (41) BRUKER BIOSPIN User Manual Version 001
Installation
Environment requirements 3.1.4
This GRASI unit is build for inside use only on a maximum high level of 2000m
above sea level (6600 feet).
No specific cooling or ventilation is required.
Be sure that the GRASI unit has enough area around so that the free air flow into
and out of the GRASI unit is not obstructed.
It should, however, be in an environment which conforms, the 5°C - 45°C (41°F -
113°F) thermal specifications, a 80% maximum relative humidity of air and a
contamination level of 2 (means a normal, only non conductive contamination,
temporary conductivity due to condensation is possible).
Installation requirements 3.2
No special precautions are necessary. Mount the equipment in an area which is
relatively free of vibration, and has sufficient room for cable connections.
The GRASI unit is a class II of installation category.
Bench operation 3.2.1
The unit can be placed onto a secure flat surface.
System check 3.3
Before applying power for the first time the following items should be checked:
•The AC input voltage 208-230VAC range must be compatible with.
•All the necessary cables are connected regarding the labels.
Initial turn on procedure 3.4
The following list describes how to turn on the GRASI unit and what should be
seen as this occurs.
Before starting this procedure, make sure that you have properly followed
instructions in the section "System check".
1. Connect the amplifier to the AC line and turn the circuit breaker to ON.
2. Observe the indicators on the front panel :
- The ON/OFF switch lights red.
- After a few seconds, the 3 front panel LEDs light up red and the initialisation
process is started.
3. After approximatively one minute, the LEDs turn off. The GRASI unit is ready
for use.
4. If the LEDs do not turn off, see the"Troubleshooting" on page 15.

User Manual Version 001 BRUKER BIOSPIN 13 (41)
4
Operation 4
General fonctions 4.1
Figure 4.1. Functional block diagram
TO AMPLIFIER X
CONVERSION FUNCTION
DESERIALIZER GRADIENT DAC
X CHANNEL
DESERIALIZER SHIM DAC
X CHANNEL
FILTER
TO AMPLIFIER B0
DESERIALIZER GRADIENT DAC
B0 CHANNEL
FILTER
TO AMPLIFIER Y
DESERIALIZER GRADIENT DAC
Y CHANNEL
DESERIALIZER SHIM DAC
Y CHANNEL
FILTER
TO AMPLIFIER Z
DESERIALIZER GRADIENT DAC
Z CHANNEL
DESERIALIZER SHIM DAC
Z CHANNEL
FILTER
POWER CONTROL FUNCTION
SHIM DAC
B0 CHANNEL
DESERIALIZER
U FROM AMPLIFIER X
U FROM AMPLIFIER Y
U FROM AMPLIFIER Z
I FROM AMPLIFIER X
I FROM AMPLIFIER Y
I FROM AMPLIFIER Z
ADC 1
ADC 2
DSP
POWER
CONTROL
LVDS
DESERIALIZER
FPGA
SERIALIZATION
CPU

14 (41) BRUKER BIOSPIN User Manual Version 001
Operation
Amplifier selection 4.1.1
The first step before starting is to select the type of amplifier used with the GRASI
unit. This selection is performed using a dedicated Web page. This action should
be done only by Bruker trained personnel. Choosing a wrong amplifier type can
lead to irreversible damage of the entire spectrometer. The selection is done once
at the first switch on. Once this selection is made, there should be no reason to
select another type of amplifier. If for any reason a change of amplifier type is
made, the type of the previously selected amplifier will be saved for safety
reasons.
Coil code selection 4.1.2
The Coil Code selection occurs automatically when the SUB-D 37 connector is
inserted. The code is detected and in accordance with the selected amplifier, the
different limit values for the power control are set. The control function supported
by the DSP uses these values to check if a limit is overridden.
Powering up 4.1.3
The GRASI Unit is switched on helps the "ON/OFF" button located on the front
panel.
Initialisation process 4.1.4
The initialisation process needs about one minute to be completed. During the
initialisation process, the output channels are calibrated and the offset corrected.
Important : After switching on the GRASI Unit, the switch light lights red. A few
seconds after switching on, the three front panel LEDs light up red and remain
lightened for about one minute. This is the external sign for the operator to
announce initialisation process. Once the three front panel LEDs switched off, the
GRASI Unit is ready for operation. Please note that during initialisation process,
no commands should be sent to the GRASI Unit.
Calibration 4.1.5
Before the device can be used for imaging application, all calibration steps must
be done according to the ParaVision/TopSpin tune-up procedure.
Warning : Danger harware damage. Missing or wrong calibration settings can
lead to destruction of gradient hardware and insufficient image quality.

User Manual Version 001 BRUKER BIOSPIN 15 (41)
Error messages
Error messages 4.2
When an error occurs, this is announced by the three front panel LEDs.
The error description is as follows :
Table 4.1. Troubleshooting
Description of the message Nature of the error Troubleshooting
Over_voltage LED lights red A voltage limit has been
overridden
Check the gradient set and the
amplifier output
Over_current LED lights red A current limit has been
overridden
Check the gradient set and the
amplifier output
Duty Cycle LED lights red The duty cycle limit has been
overridden
Check the pulse program
The three LEDs light red
together in blinking mode
No limit values available, the
DSP control could not be started
Check if an amplifier is selected,
check if the Coil Code is
selected
The three LEDs are blinking in
turn
An internal error occurred HW-Reset the GRASI Unit

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Operation

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5
Technical
description 5
General description 5.1
The GRASI is a 19" unit with following dimensions :
•Height : 2U
•Width : 19"
•Depth : 460mm
•Weight : 8kg
Figure 5.1. Housing dimensions
Power requirements 5.2
The GRASI Unit is powered by the mains input.
Main characteristics
•AC input voltage range : 208-230VAC
•AC inrush current : 40A at 230VAC
•Power consumption : 220VAC 300mA
•Fuses : 2A T 250VAC
483mm
3mm
460mm
445mm
Top View

18 (41) BRUKER BIOSPIN User Manual Version 001
Technical description
Front panel connectors 5.3
Figure 5.2. Figure 7 : BNC female connector
Table 5.1. BNC female of Monitor X definition
Table 5.2. BNC female of Monitor Y definition
Table 5.3. BNC female of Monitor Z definition
Table 5.4. BNC female of Monitor B0 definition
Pins Descriptions
1MONITOR_X
2MONITOR_X_GND
Pins Descriptions
1MONITOR_Y
2MONITOR_Y_GND
Pins Descriptions
1MONITOR_Z
2MONITOR_Z_GND
Pins Descriptions
1MONITOR_B0
2MONITOR_B0_GND
21

User Manual Version 001 BRUKER BIOSPIN 19 (41)
Front panel indicators
Front panel indicators 5.4
The front panel is equiped with three red LED’s to indicate different errors.
•Overvoltage
•Overcurrent
•Duty Cycle
Figure 5.3. Red led indicator
Front panel buttons 5.5
This unit is equiped with a "RESET" button to reset errors.
Figure 5.4. Error reset button
Rear panel connectors 5.6
Gradient Coil Code connector from Gradient set 5.6.1
Coil Code Interface Connector from Coil to GRASI.
Figure 5.5. Sub-D 37 pin female connector
37
19
20
1

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Technical description
Table 5.5. Sub-D 37 pin female definition
Status and Command connector from GPSCU 5.6.2
Status and Command connectors from GPSCU to GRASI on each channel.
Figure 5.6. Sub-D 15 pin male connector
Pins Descriptions To use Pins Descriptions To use
1SCHALT_GND Used 20 TC_4 Unused
2SCHALT_A0 Used 21 TC_5 Unused
3SCHALT_A1 Used 22 TC_6 Unused
4SCHALT_A2 Used 23 PT100_GND Unused
5SHIM_P5V (Interlock) Unused 24 TC_GND Unused
6SHIM_GND (Interlock) Unused 25 SCREEN Unused
7GRAD_P5V (Interlock) Unused 26 NC Unused
8GRAD_GND (Interlock) Unused 27 NC Unused
9PT100_1 Unused 28 NC Unused
10 PT100_2 Unused 29 NC Unused
11 PT100_3 Unused 30 NC Unused
12 PT100_4 Unused 31 NC Unused
13 PT100_5 Unused 32 NC Unused
14 PT100_6 Unused 33 NC Unused
15 SCHALT_A3 (reserve) Used 34 NC Unused
16 SCHALT_A4 (reserve) Used 35 NC Unused
17 TC_1 Unused 36 NC Unused
18 TC_2 Unused 37 NC Unused
19 TC_3 Unused
915
81