Me GSV-6CPU User manual

1...6-channel measurement amplifier GSV-6
GSV-6CPU, GSV-6L, GSV-6K
Instruction manual
Version: 27.04.2015
GSV-6L: 12V/24V supply, output current / voltage
GSV-6CPU: 3 7V supply, output 0 3V; CAN, UART, 6x ADC
GSV-6K: 12V/24V supply, output current / voltage

Strain gauges measurement amplifier GSV-6
Contents
Strain gauges measurement am lifier GSV-6.......................................................................2
GSV-6CPU.........................................................................................................................3
Descri tion.....................................................................................................................3
Dimensions....................................................................................................................4
Terminal assignment......................................................................................................4
Configuration interface..............................................................................................5
Strain gauges............................................................................................................5
Voltage su ly...........................................................................................................5
In uts/out uts............................................................................................................5
GSV-6L..............................................................................................................................6
Descri tion.....................................................................................................................6
Dimensions....................................................................................................................7
Terminal assignment......................................................................................................7
5- in terminal stri .....................................................................................................7
7- in terminal stri .....................................................................................................7
Functions.......................................................................................................................8
GSV-6K..............................................................................................................................9
Descri tion.....................................................................................................................9
Functions.....................................................................................................................10
Dimensions..................................................................................................................10
Terminal assignment....................................................................................................10
5- in socket.............................................................................................................10
5- in lug.................................................................................................................11
Annex...............................................................................................................................11
Technical data of GSV-6CPU......................................................................................11
Technical data GSV-6L / GSV-6K................................................................................13
Factory settings...........................................................................................................14
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GSV-6CPU
Description
The GSV-6 roduct range handles signal rocessing for strain gauges within the smallest
of s aces.
The core com onent of the GSV-6 is a PCB measuring 19mm x 14mm.
This "GSV-6CPU" rovides all the required functions to set u a 1- to 6-channel
measurement am lifier.
Connector anels and functions for additional a lications are ex anded via 18- in stri s
with a 1.0 itch: UART to Bluetooth, CAN bus driver, GPRS modem, etc.
The GSV-6 CPU comes com lete with 6 in ut channels (even before any ex ansion). One
channel includes bridge excitation and differential in ut to o erate strain gauge full
bridges.
•Strain gauge bridge excitation 3V, max. 60mA
•Strain gauge bridge in ut
•Analogue out ut 0-2.5V
•LED out ut
•TEDS in ut
•Digital in uts for the "Tare" and "Scale" functions
•5x analogue in uts 0...3V
•Interfaces "UART", "CAN", "I2C" 1) "SPI" 1)
•Su ly voltage 3.6V to 5.5V
•3x Threshold value indicators 4mA
•3.3V Voltage out ut 10mA
•2.5V Reference 100µA
1) SPI and I2C without software su ort to date
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Dimensions
The GSV-6 CPU module can be configured via an UART configuration interface.
There is also sco e to configure the most im ortant settings using the Tare and Scale
cables.
Terminal assignment
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Figure 1: Dimensions GSV-6CPU
Figure 2: Terminal assignment GSV-6CPU

Configuration interface
A JTAG and UART interface is available for testing and develo ment via a "BM10B" lug
connector.
Strain gauges
PIN Designation unction Comment
1 +Us (V_DMS) Positive bridge excitation 3 V 60 mA, short-circuit
roof
2 -Ud Negative bridge out ut
3 +Ud Positive bridge out ut
4 -Us (AGND) Negative bridge excitation (AGND)
Voltage supply
PIN Designation unction Comment
14 Vcc_IN Su ly voltage 3.6 V ...5.5 V
15 GND Ground su ly voltage
13 Su ly_Warning For shutting down external hardware To be connected to
Vcc_IN
Inputs/outputs
PIN Designation unction Comment
18 Tare Tare >1s in actual-value mode: Zero adjustment
Tare > 100ms in maximum-value mode maximum-
value reset
Tare > 2s in maximum-value mode: Zero adjustment
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Figure 3: Terminal assignment configuration interface

PIN Designation unction Comment
and maximum-value reset
Tare > 100ms in ClickRClackR menu: "U ", goes to
next menu entry.
17 Scale Scale > 2s: Scaling of the out ut signal to the
currently effective signal at the in ut. Default: set at
100% of the out ut signal. The autoscale level can
be configured to values other than 100% in the
ClickRClackR menu and via the service interface.
Scale > 5s when ower switched on: Activate the
ClickRClackR menu
Scale > 100ms in ClickRClackR menu: "Enter",
executes the current menu entry.
16 TEDS
(Peak value)
The connection for 1-wire-EEPROMs functions with
3.3V instead of 5V and includes a 1.5 kR
ull-u resistor of 3.3V. The EEPROMs (e.g.
DS2433+, DS2430A, DS28EC20) of Maxim/Dallas
are 3.3V com atible.
The software su orts TEDS sensors with the
Bridge Sensor ID 33 and
Strain-Gage ID 35 tem lates.
LED Status indicator, with signals including "TEDS read",
"Parameter active", "Parameter set", "Gradient
indicator".
max. 4mA, 200 ohm
series resistor;
Tem erature
sensor
Ty e TMP102, -40°C ...+125°C, ±3°C;
GSV-6L
Description
The measurement am lifier GSV-6L adds a configurable analogue out ut to the GSV-
6CPU. The GSV-6L is designed to be built into sensors and fits into the most confined
housing enclosures, such as connector housings of the "GSV-6K” ty e.
Even after it is enclosed, there is com lete sco e to configure all the ro erties of the
GSV-6L via two "Tare" and "Scale" control cables.
The calibration data from the electronic data sheet of the sensor is automatically acce ted
via a TEDS in ut. The analogue out ut is then automatically adjusted to the increase set in
TEDS. Dimensions and terminal assignment
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Figure 4: GSV-6L

Dimensions
Terminal assignment
5-pin terminal strip
Designation unction Comment
+Us (V_DMS) Positive bridge excitation 3 V 60 mA, short-circuit
roof
-Ud Negative bridge out ut
+Ud Positive bridge out ut
-Us (AGND) Negative bridge excitation (AGND)
SW Threshold value out ut, O enDrain 200mA, 30V
7-pin terminal strip
Designation unction Comment
LED Connection for LED max. 4mA, 200 ohm
series resistor;
GND Ground su ly voltage
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Figure 5: Dimensions GSV-6L

Designation unction Comment
9...28V Su ly voltage with olarity reversal
rotection
U/I Out Negative bridge excitation (AGND) 9...28V or 2V over the
maximum out ut signal;
Scale Control lead for Scale or "ENTER" High Active; duration as
for GSV-6CPU
Tare Control lead for "Tare" or "UP" High Active; duration as
for GSV-6CPU
TEDS In ut for TEDS as GSV-6CPU
unctions
The functions can be adjusted using the "Tare" and "Scale" control cables.
A simulator to configure the GSV-6 via control cables is also available via
htt ://www.me-systeme.de/click/click. h
unction Settings
Analogue out ut "Ty e" 0...10V, ±10V, 0...5V, ±5V, 4...20mA, 0...20mA
Analogue out ut "Offset" 0%, 10%, 12.5%, 20%, 25%, 30%, 37.5%, 40%, 50%
Exam le: an offset of 50% with an analogue out ut 0...10V shifts
the zero oint at 0 mV/V to 5V. With an out ut of 4...20mA, the
zero oint is shifted to 12mA with an offset of 50%. The in ut
sensitivity is shown at all times on the remaining "End Value -
Offset" area.
Data frequency in Hz
(U dating of measurement
values at the analogue out ut
or interface)
0.1, 0.2, 0.5, 1, 2, 10, 20, 50, 100, 200, 500, 1k, 2k, 5k, 10k, 20k,
25k;
The smallest data frequency at the out ut is 10Hz. At levels below
10Hz, a second-order IIR filter is used.
In ut sensitivity in mV/V 0.1, 0.2, 0.3. 0.4, 0.5, 1, 2, 3, 4, 5, 8 (standard mode)
0.1, 0.2, 0.3, 0.4, 0.5, 1, 2, 3, 4, 5, 8 (high-res. mode)
In high-res. mode the hysical measuring range is restricted,
which means there is less "reserve" available for a zero
adjustment with the Tare function.
Available hysical measuring ranges: 8 mV/V, 4 mV/V, 2 mV/V, 1
mV/V
The in ut sensitivity can also be set to 5-digit recision using the
Tare and Scale cables in the ClickRClackR menu ("seamless").
Adjust autoscale level The autoscale level allows the out ut signal to be defined as a %
of the end value, which is shown by im lementing "Scale" with the
current weight limit. Default setting: 100% (a weight limit of 100%
is ex ected).
The autoscale level can be adjusted in stages, from 5% within the
range 0 to 100%. When "0%" is set, the autoscale function is
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unction Settings
deactivated.
Level for threshold value
indicator "On"
The switch-on threshold of the threshold value indicator can be
adjusted in ste s of 5% within the range 0 to 100%. When 0% is
set, the threshold value indicator is deactivated.
Level for threshold value
indicator "Off"
The switch-off threshold of the threshold value indicator can be
adjusted in ste s of 5% within the range 3 to 98%. The switch-off
threshold should be set lower than the switch-on threshold. If "0%"
is set, the switch-off threshold is deactivated.
O erating mode "Actual value dis lay" (Default), Maximum value dis lay, Inversion
of the dis lay, Non-volatile Tare setting (default) or volatile when
switched off, "Gradient" setting (s ecial function, not included in
the standard configuration), TEDS activated (default) /
deactivated.
Load re-setting Selecting this menu o tion loads the default settings included on
delivery.
±10V, 2 mV/V, 100Hz, Actual value dis lay, TEDS active, Non-
inverted dis lay,
GSV-6K
Description
The measurement am lifier GSV-6K includes a strain gauge in ut via a 5- in M12 casing
bushing and an analogue out ut via a 5- in M12 housing connector.
The GSV-6K is used to convert the bridge signal from force, torque or strain sensors to an
analogue out ut signal.
The electronic data sheet of the sensor can be read via a TEDS interface. The
measurement am lifier scales the out ut signal to the end value of the set out ut signal
using the TEDS interface.
The out ut signal can be set as a voltage out ut or current out ut.
The out uts 0...10V, ±10V, 0...5V, ±5V, 4...20mA, 0...20mA can be set using the "Tare" and
"Scale" control cables.
Similarly, an offset or sam ling frequency can also be set.
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unctions
The unit is factory-configured to the desired out ut signal and with the desired functions.
The configuration can be modified using the "Tare" and "Scale" control cables.
Functions(Page 8).
Dimensions
Terminal assignment
M12 lug connector with A-coding;
5-pin socket
Pin No. Terminal assignment ME
(Type 1)
ME
(Type 2)
Phoenix
SAC-5P
1 +US Positive bridge excitation brown red brown
2 -US Negative bridge excitation white black white
3 +UD Positive differential in ut green green blue
4 -UD Negative differential in ut yellow white black
5 TEDS in ut grey grey
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Figure 6: Contact configuration M12
socket
21
3 4
5

5-pin plug
Pin No. Terminal assignment ME
(Type 1)
Phoenix
SAC-5P
1 Voltage su ly 12V / 24V DC brown brown
2 Analogue out ut 4...20mA / ±10V white white
3 Ground green blue
4 Tare (Control in ut for zero adjustment) yellow black
5 Scale (Control in ut for autoscale) grey grey
Annex
Technical data of GSV-6CPU
Accuracy
Accuracy class 0,1 %
Resolution 16 Bit
Strain gauge in uts for full bridge 60 ... 20000 Ohm
In ut sensitivity (FS) 0.1 ... 8 (configurable) mV/V
Common-mode rejection ratio
DC-60Hz
5 kHz
110
100
dB
dB
Noise am litude "Pk-Pk"
1 Hz
10 Hz
100 Hz
1 kHz
10 kHz
20 µV/V (2 mV/V / 10000)
31 µV/V (2 mV/V / 6500)
80 µV/V (2 mV/V / 2500)
140 µV/V ( 2 mV/V / 1400)
240 µV/V ( 2 mV/V / 840)
Zero oint drift (at 2 mV/V FS) <0.05 %FS/10K (1 µV/V / 10K)
Sensitivity drift (at 2 mV/V FS) <0.01%RD/10K
Analogue in ut
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Figure 7: Contact configuration M12 plug
12
4 3
5

Number
Resolution
In ut range (nominal)
Zero oint drift
6
16
0 ... 3
150 µV / 10K
Bit
V
Measuring frequency
U dating of analogue out ut 10 ...25000 Hz
Sam ling frequency 50 kHz
Adjustment range of averaging filter 0.1 ...25000 Hz
Outputs
Bridge su ly voltage
Current carrying ca acity
Short-circuit resistance
3.0
60
Yes
Volt
mA
Analogue out ut
Resolution
Out ut resistance
Max. out ut current
1.5 V ± 1 V at 0 mV/V ± FS
13 bit
47
10
Ohm
mA
Threshold value out ut, Su ly_Warning
LED
Level
Current carrying ca acity:
LVTTL level
200 ohm series resistor required
>2.4V High; <0.4V Low
4mA
Voltage source
Current carrying ca acity
3.3
10
V
mA
Interfaces
UART, SPI, I2C, CAN, TEDS
Voltage supply
Nominal voltage
Current consum tion
Min. su ly voltage
Max. su ly voltage
3.7
12
3.6
5.5
V
mA
V
V
Operating temperature
Nominal tem erature -10°C ...85°C
Working tem erature -40°C … 125°C
Dimensions
L x W x H 19 x 14 x 4 mm x mm x mm
Protection Class
IP00
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Technical data GSV-6L / GSV-6K
Accuracy
Accuracy class 0,1 %
Resolution 16 Bit
Strain gauge in uts for full bridge 60 ... 20000 Ohm
In ut sensitivity (FS) 0.1 ... 8 (configurable) mV/V
Common-mode rejection ratio
DC-60Hz
5 kHz
110
100
dB
dB
Noise am litude "Pk-Pk"
1 Hz
10 Hz
100 Hz
1 kHz
10 kHz
20 µV/V (2 mV/V / 10000)
31 µV/V (2 mV/V / 6500)
80 µV/V (2 mV/V / 2500)
140 µV/V ( 2 mV/V / 1400)
240 µV/V ( 2 mV/V / 840)
Zero oint drift (at 2 mV/V FS) <0.05 %FS/10K (1 µV/V / 10K)
Sensitivity drift (at 2 mV/V FS) <0.01%RD/10K
Measuring frequency
U dating of analogue out ut 10 ...25000 Hz
Sam ling frequency 50 kHz
Adjustment range of averaging filter 0.1 ...25000 Hz
Outputs
Bridge su ly voltage
Current carrying ca acity
Short-circuit resistance
3.0
60
Yes
Volt
mA
Analogue out ut
Resolution
Out ut resistance
Max. out ut current
Configurable
13 bit
0.12
10
Ohm
mA
Threshold value out ut,
Current carrying ca acity:
O en drain
200 mA, 30V
Interfaces
TEDS
Voltage supply
Nominal voltage
Current consum tion
Min. su ly voltage
Max. su ly voltage
12V … 24V
22
9
28
V
mA
V
V
Operating temperature
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Nominal tem erature -10°C ...70°C
Working tem erature -25°C … 85°C
Dimensions
GSV-6L (L x W x H)
GSV-6K (Ø x L)
22mm x 14mm x 9mm /
Ø20mm x 70mm
Protection class
GSV-6L
GSV-6K
IP00 /
IP66
actory settings
GSV-6L, GSV-6K
In ut sensitivity 2 mV/V
Physical measuring range ±4 mV/V (standard mode)
Analogue out ut ±10 V (±1 V)
Offset 0% (1.5 V)
Data frequency 100 Hz
Sam ling frequency 50 kHz
Signs Not inverse
Level for scale 100%
Level for threshold value indicator 1 90%
Zero adjustment non-volatile
TEDS activated
Peak value out ut inactive
Gradient ±1 (mV/V) / s
Configuration interface 115200 baud, 8n1
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Subject to changes.
All details describe our roducts in a general form.
They constitute no warranty of characteristics as defined by § 459, Paragra h 2 of the German Civil Code
nor grounds for liability.
Made in Germany Co yright © 2015
ME-Meßsysteme GmbH
Printed in Germany