Futek USB520 User manual

Quick Start Guide
Sensor Solutions Source
Load · Torque · Pressure · Multi Axis · Calibration · Instruments · Software
www.futek.com
USB520
External USB Output Kit

2
Getting Help
EM1017-C
Copyright © 2021. All rights reserved. FUTEK reserves the right to modify its design and specifications
without notice. Please visit www.futek.com/termsandconditions for complete terms and conditions.
FUTEK®Advanced Sensor Technology, Inc.
10 Thomas, Irvine, CA 92618 USA
Tel: [phone]
www.futek.com
TECHNICAL SUPPORT
For more USB support documentation please visit: https://www.futek.com/usb-output-modules

3
Layout and Included Accessories . . . . . . . . . . . . 4
Binder Connector Wiring Information . . . . . . . . . . 5
Multiple Profile Selection in SENSIT . . . . . . . . . . . 7
Supplied Voltage Selection in SENSIT . . . . . . . . . 8
System Calibration in SENSIT . . . . . . . . . . . . . . 9
ASCII Streaming Output . . . . . . . . . . . . . . . . .10
Specifications . . . . . . . . . . . . . . . . . . . . . .11
mV/V Wiring Example . . . . . . . . . . . . . . . . . .13
Amplified Wiring Example . . . . . . . . . . . . . . . .14
Additional Accessories . . . . . . . . . . . . . . . . .15
Table of Contents

4
Layout and Included Accessories
Included with the USB520 is one 12 pin male plug for use with a sensor, and one 4 pin USB cable assembly for connections to
a computer USB 2.0 port.
12 PIN SENSOR CONNECTOR
USB 2.0 HI-SPEED A/B CABLE
12 PIN SENSOR BINDER PLUG DIN RAIL MOUNTED

5
SENSOR CONNECTIONS
PIN SYMBOL DESCRIPTION
A +E +Excitation/+Sense
B +S +Signal
C –E –Excitation/–Sense
D –S –Signal
F 24_OUT 24V Output
G GND_OUT Ground
PIN SYMBOL DESCRIPTION
H 4.75V Output
J –V –V and –mA Amplified Input
Connections
K +V +V and +mA Amplified Input
Connections
L PLEAD Leading pulse from sensor
M PLAG Lagging pulse from sensor
12 PIN SENSOR CONNECTOR TO USB520
For 6 wire sensors connect +Sense to +Excitation and –
Sense to –Excitation.
Note: Sensor cable shield connections should be grounded
on one end, either the sensor side or the USB520 sensor
input side, to avoid potential ground loops.
Shield should be connected to cable clamp of binder cable
assembly when connecting on instrument side.

6
Binder Connector From Sensor
The ± Excitation and ± Signal pins are used for
mV/V non-amplified output sensors.
For six wire sensors with ± Sense, the ± Sense
connections should be connected to the
± Excitation connections respectively.
For amplified output sensors, the selectable 24V
Output and Ground pins can be used to power
the sensor, and the ± Amplified pins can be used
for Voltage or Current outputs from the sensor.
The 4.75V Output and Ground pins can be used
to power circuits, such as encoders in our rotary
torque sensors.
The Leading Pulse and Lagging Pulse pins can be
used with the Ground pin for encoder outputs.
Typically our rotary torque sensor encoders will
have Angle 1 on the Leading Pulse pin and Angle
2 on the Lagging pulse pins.
If the Leading Pulse, Pin L, leads Pin M the
encoder count will increase, and if the Lagging
Pulse, Pin M, leads Pin L the encoder count will
decrease.
G
M
FE
D
C
L
B
A
K
J
H
The USB520 Spec Sheet can be found here:
https://media.futek.com/content/futek/files/pdf/
productdrawings/usb520.pdf

7
Multiple Profile Selection in SENSIT Software
In SENSIT, profile options can be accessed by right clicking in
the Display Mode screen.
The USB520 offers four customizable calibration profiles and
three default profiles. The default profiles include, mV/V,
Voltage, and Current.
Profiles listed as System 1 through 4 can be user defined in
the SENSIT calibration and can be used for different types of
sensors or the same sensor.
One way to utilize the multiple profiles is to improve the
accuracy for the lower range of a sensor by having one profile
for the full sensor range and another one for the lower range
of the sensor. This would allow a full capacity profile and a
lower range capacity profile for the same sensor to be used
as needed.
Please refer to the SENSIT Quick Start Guide, or our online SENSIT
support documentation, for more information on using SENSIT at:
https://www.futek.com/sensit-software-support

8
Supply Voltage Selection in SENSIT Software
The USB520 offers a selectable 5 VDC to 24VDC,
1 Watt power supply on its amplified 24V Out and Ground
pins to power amplified sensors, such as the FUTEK rotary
torque line, TRS605.
In SENSIT supply voltage options can be accessed by right
clicking on the Display Mode screen.
When changing to a default profile the supply voltage will
reset to 5 VDC to avoid possible damage to the sensor.
The set voltage specified in the calibration will be used for
programmable system profiles.

9
Calibration Settings in SENSIT Software
Four EEPROM pages are available for custom sensor profiles,
or calibrations, in the SENSIT calibration menu under the
Calibration Settings.
The sensor output type does not have to be the same for each
profile, meaning the USB520 can be calibrated to multiple
sensors with different output types, such as amplified and
mV/V.
SENSIT utilizes a live calibration with known loads for the
USB520.

10
This is an example of the streaming ASCII output for the USB520.
ASCII Streaming Output
The USB520 can output an automatic streaming ASCII output
of the current reading.
The ASCII output will turn off when the USB520 is in command
mode, such as when in use with SENSIT. Resetting, or
unplugging and re-plugging in the USB instrument, will restart
the ASCII streaming output.
The ASCII output is updated up to 10 samples per second.

11
Specifications
FEATURES
• USB 2.0 Communication Link
• USB Bus - Powered (5V)
• Input/Output Short Circuit Protection
• Streaming ASCII Output
ENVIRONMENT
• Operating Temperature: –13°F to 185°F [–25°C to 85°C]
• Storage Temperature: -40°F to 257°F [–40°C to 125°C]
ENCODER INPUT*
• Encoder Input: Quadrature Leading and Lagging Pulse
• Speed Measurement: Up to 150k pulses per second1
• Angle Measurement (α): up to 10k pulses per rotation
(PPR)1
GENERAL
• Internal Resolution: 24 bits
• Output: Digital Packetized Data
• Integrated Digital Filter: 50 Hz/60 Hz rejection (100 dB)
• On Chip Memory: 1 Kilobyte
• Up to 16 Point Stored Calibration
• Weight: 0.43 lb (195 g)
• Selectable Supply Voltage 5-24 VDC / 1W
1Speed = Δα× 60 / PPR
* Encoder information is updated at 10hz.

12
STRAIN GAUGE mV/V INPUT
• Bridge Excitation: 4.6 VDC
• Standard Input Range: ± 3.4 mV/V (factory default)
• Optional Input Range: ± 400 mV/V
• Min. Bridge Resistance: 50 Ohm
• Max. Bridge Resistance: 5000 Ohm
VOLTAGE INPUT
• Standard Input Range: ± 10 VDC (factory default)
CURRENT INPUT
• Standard Input Range: 0–20 mA (factory default)
Specifications (continued)

13
LSB200 TO USB520 WIRING USB520
G
M
FE
D
C
L
B
A
K
J
H
mV/V Wiring Example
Bridge Sensor
XXXΩ
+ Excitation (Red) Pin
+ Signal (Green/Yellow) Pin
– Signal (White) Pin
– Excitation (Black/Blue) Pin
1
2
4
3
A
B
C
D
Note: For sensors with ± Sense, the sense wires must be connected to
± Excitation or clipped off.

14
TRS605 TO USB520 WIRING
TORQUE CONNECTIONS
• Power Pin
• Power Ground Pin
• Signal Output Pin
• Output Ground Pin
ENCODER CONNECTIONS
• Power Pin
• Power Ground Pin
• Signal Angle 1 Pin
• Signal Angle 2 Pin
USB520
G
M
FE
D
C
L
B
A
K
J
H
Amplified Output Wiring Example
F
H
G
L
K
M
J
G
F
E
C
D
H
B
G
E
Note: Encoder and Torque share the same power ground connection
E to G. Encoder connections supported by the USB520.

15
Accessories
SENSIT™ TEST AND MEASUREMENT
SOFTWARE
Item Number: FSH03189
USB 2.0 HI-SPEED A/B CABLE WITH
FERRITE CHOKES (M/M) 6 FT
Item Number: GOD04123
BINDER MALE PLUG WITH
CABLE CLAMP
Item Number: GOD02975
Programming Support
FUTEK offers our USB DLL file as well as LabVIEW and Visual Basic examples online on the SENSIT support page at:
https://www.futek.com/sensit-software-support

10 Thomas, Irvine, CA 92618 USA
Tel: [phone]
www.futek.com