Danfoss JS120 Manual

Technical Information
Joysticks
JS120 Single Axis Fingertip Joystick
powersolutions.danfoss.com

Revision history Table of revisions
Date Changed Rev
December 2016 Corrected pinout drawing 0303
April 2016 Updated to Engineering Tomorrow design 0302
November 2015 Converted to Danfoss layout 0301
July 2009 Corrected connector pin assignments and added output voltage curve DA
February 2007 Lever length options; connector pin assignments CA
May 2006 Model code number BA
May 2006 Typical contact resistance to ohms AA
Technical Information
JS120 Single Axis Fingertip Joystick
2 | ©Danfoss | December 2016 520L0877 | BC00000075en-US0303

Overview Description..........................................................................................................................................................................................4
Features and options...................................................................................................................................................................... 4
Product configuration model code
Model code summary.....................................................................................................................................................................5
Center tap ..................................................................................................................................................................................... 6
Padding resistors ........................................................................................................................................................................6
Position switches.........................................................................................................................................................................6
Product installation Dimensions and mounting...........................................................................................................................................................7
Connector pin assignments..........................................................................................................................................................8
Mating connector details...............................................................................................................................................................8
Machine wiring guidelines............................................................................................................................................................9
Joystick safety....................................................................................................................................................................................9
Joystick dust and water protection...................................................................................................................................... 9
Joystick safety critical functions..........................................................................................................................................10
Product specifications Electrical characteristics...............................................................................................................................................................11
Mechanical characteristics..........................................................................................................................................................11
Environmental parameters ........................................................................................................................................................12
Technical Information
JS120 Single Axis Fingertip Joystick
Contents
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Description
Danfoss has developed the JS120 to meet the harsh operating requirements of today’s mobile machine
market.
Developed for applications where ergonomics and system integrity are paramount, the JS120 is a
minimum width, low profile joystick that provides precise fingertip control in one axis. The low profile
lever makes the JS120 less susceptible to unintentional operation and the minimum under-panel
footprint makes it ideal for mounting in panels and operator arm rests. The JS120 is sealed to IP 66 above
panel to enable it to operate in extreme environments.
Designed for use with electronic controllers, the joystick generates analog and switched reference signals
proportional to the distance and direction over which the handle is moved. The output is configured to
provide signals for fault detection circuits and a center tap provides an accurate voltage reference for the
lever in its released position, or a zero point for a bipolar supply voltage. Electrically independent
direction switches are also available.
This publication describes the technical features and data required to specify the JS120 base for your
application.
Features and options
•Long life potentiometric sensing
•Single axis
•Spring center return and end return options
•Slim profile with low operating forces
•Easy installation
•Operating life > 5 million cycles
•Output options
‒10 to 90 % Vs
‒25 to 75 % Vs
•IP 66 environmental sealing above panel
•Independent direction switch signals
•Width only 26.5 mm (1.04 in)
•Ergonomic design
•Choice of two lever heights
Technical Information
JS120 Single Axis Fingertip Joystick
Overview
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The product configuration model code specifies particular features when ordering the JS120. The model
code begins with the product family name and the remaining fields are filled in to configure the product
with the desired features.
Model code summary
Product configuration model code sample
A B
JS120 0002
A—Product series
Code Description
JS120 Series JS120 Joystick
B—Lever length and output voltage range options
Code Description
0002 Short lever, 10 to 90% Vs output range, 5 kΩ, spring return to center
0003 Short lever, 25 to 75% Vs output range, 5 kΩ, spring return to center
0005 Long lever, 10 to 90% Vs output range, 5 kΩ, spring return to center
0006 Long lever, 25 to 75% Vs output range, 5 kΩ, spring return to center
0008 Long lever, 10 to 90% Vs output range, 5 kΩ, spring return to end
0009 Long lever, 25 to 75% Vs output range, 5 kΩ, spring return to end
0010 Short lever, 10 to 90% Vs output range, 5 kΩ, spring return to end
0011 Short lever, 25 to 75% Vs output range, 5 kΩ, spring return to end
Vs = supply voltage
Technical Information
JS120 Single Axis Fingertip Joystick
Product configuration model code
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Center tap
A center tap (spring return to center option) is a standard JS120 feature, where 50% of the supply voltage
can be supplied to force the sensor voltage to this known reference. When the center tap is not
connected there will be a center dead band (where the voltage output does not change on initial
deflection).
Padding resistors
The JS120 potentiometer track has resistors placed in series with the main resistive element. These
resistors are used to reduce the outputs at full mechanical deflection. This is a safety feature that the
machine control system can use to determine a broken wire or short circuit to full voltage or ground. The
degree to which the output is reduced can be chosen from the Code B table in Model code summary on
page 5.
Position switches
Position switches are a standard JS120 feature. The normally open switches close at the angles specified
in the table below indicating forward and reverse travel of the lever. These switches are connected
independently of the proportional potentiometric elements and can be terminated by the customer to
provide center on/off data to the control system.
Specifications
Switch operating angle 5˚ either side of center (± 1˚ tolerance)
Maximum supply voltage—maximum Vs < 35 Vdc
Minimum load resistance 10 kΩ
Maximum load current 2 mA resistive
Typical contact resistance 150 Ω
Technical Information
JS120 Single Axis Fingertip Joystick
Product configuration model code
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Dimensions and mounting
Dimensions
1 2
33.0 mm
25.0 mm
3.35 mm
7.0 mm 5
4
50.0 mm 26.5 mm
63.75 mm
26.5 mm
54.0 mm
30 o
30 o
+Y -Y
9.0 mm
15.5 mm
6 7
3
ycw1478292792742
60°
1. Forward 2. Backward
3. Connector 4. Panel clearance holes 3.10 mm
5. Panel cut out 6. Long lever
7. Short lever
JS120 is designed to be fitted down into the panel, through the panel cutout. Panel seal integrity can be
achieved by using sealing gasket. Mounting screws can be driven to a recommended torque of 1 N•m (9
lbf•in). The joystick is fitted with 2 x M3 inserts and the maximum screw penetration is 6 mm plus panel
thickness.
Technical Information
JS120 Single Axis Fingertip Joystick
Product installation
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Connector pin assignments
Connector
kwa1447351557847
Pin assignments (connector end view)
kwa1391820928784
ABCDEFG
Pinout and wiring information
Pin JS120-0002, 0003, 0005, 0006 JS120-0008, 0009, 0010, 0011
G Direction switch common Direction switch common
F Direction switch +Y (N/O) Direction switch (N/O)
E Direction switch -Y (N/O) Not used
D (-) supply (ground) (-) supply (ground)
C Output voltage Output voltage
B (+) supply (power) (+) supply (power)
A Center tap Not used
Marker on underside of mating connector indicates pin G
Mating connector details
Mating connector – AMPMODU MTE series
Connector AMP ordering number
7 pin latching male 103957-6
Mating connector assembly
Type Danfoss ordering number
7 pin with 610 mm [24.02 in] leads 10101762
Technical Information
JS120 Single Axis Fingertip Joystick
Product installation
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Machine wiring guidelines
•Protect wires from mechanical abuse, run wires in flexible metal or plastic conduits.
•Use 85˚ C (185˚ F) wire with abrasion resistant insulation and 105˚ C (221˚ F) wire should be
considered near hot surfaces.
•Use a wire size that is appropriate for the module connector.
•Separate high current wires such as solenoids, lights, alternators or fuel pumps from sensor and other
noise-sensitive input wires.
•Run wires along the inside of, or close to, metal machine surfaces where possible, this simulates a
shield which will minimize the effects of EMI/RFI radiation.
•Do not run wires near sharp metal corners, consider running wires through a grommet when
rounding a corner.
•Do not run wires near hot machine members.
•Provide strain relief for all wires.
•Avoid running wires near moving or vibrating components.
•Avoid long, unsupported wire spans.
•Ground electronic modules to a dedicated conductor of sufficient size that is connected to the
battery (-).
•Power the sensors and valve drive circuits by their dedicated wired power sources and ground
returns.
•Twist sensor lines about one turn every 10 cm (4 in).
•Use wire harness anchors that will allow wires to float with respect to the machine rather than rigid
anchors.
C
Caution
Unused pins on mating connectors may cause intermittent product performance or premature failure.
Plug all pins on mating connectors.
W
Warning
Unintended movement of the machine or mechanism may cause injury to the technician or bystanders.
Improperly protected power input lines against over current conditions may cause damage to the
hardware. Properly protect all power input lines against over-current conditions.
Joystick safety
Joystick dust and water protection
The joystick is sealed above the mounting surface to prevent dust and water ingress and is supplied with
a sealing gasket for mounting above the panel. The effectiveness of the seal is dependent on the
mounting surface being sufficiently rigid to compress the sealing gasket. The finish of the mounting
surface is critical to achieving an adequate seal and rough surface finishes, paint chips, deep scratches,
etc. should be avoided.
The joystick base below the mounting surface should be protected from dust and direct water spray.
Technical Information
JS120 Single Axis Fingertip Joystick
Product installation
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Joystick safety critical functions
For a system to operate safely it must be able to differentiate between commanded and uncommanded
inputs. Take steps to detect and manage joystick and system failures that may cause an erroneous
output.
For safety critical functions Danfoss recommends you use an independent momentary action system
enable switch. You can incorporate this switch into the joystick as an operator presence switch or can be
a separate foot or hand operated momentary switch. Disable all joystick functions that the joystick
controls when this switch is released.
Ensure the control system looks for the appropriate system enable switch input before the joystick is
displaced from its neutral position. Enable functions only after receiving this input.
Applications using CAN joysticks should continuously monitor for the presence of the CAN messages on
periodic basis. Messages are to be checked frequently enough for the system or operator to react if the
CAN messages lose priority or are no longer received.
Technical Information
JS120 Single Axis Fingertip Joystick
Product installation
10 | ©Danfoss | December 2016 520L0877 | BC00000075en-US0303

Electrical characteristics
Electrical characteristics
Sensor type Potentiometric
Electrical angle of movement center return 28° ± 1°
Electrical angle of movement end return Start 2° ± 1°, end return full angle 56° ± 1°
Total track resistance 5 kΩ (± 20%)
Maximum supply voltage (Vs) 35 Vdc
Maximum wiper current 5 mA (non-destructive)
Maximum power dissipation 0.25 W at 20°C [68°F]
Wiper circuit impedance 200 kΩ minimum
Output voltage 10 to 90% Vs
25 to 75% Vs
Resolution Infinite
Center tap voltage (no load) 50% Vs ± 2%
Center tap angle (center return) ± 2.5° either side of center
(± 1° tolerance)
Insulation resistance > 50 MΩ at 500 Vdc
Load resistance minimum 10 kΩ
Load current maximum 2 mA resistive
Output voltage curve
90%
50%
10%
+Y -Y kwa1390403298242
Mechanical characteristics
Mechanical characteristics
Description Short lever Long lever
Breakout force (at lever tip) 3.1 N [0.70 lbf] 2.3 N [0.52 lbf]
Operating force (at tip, full deflection) 5.1 N [1.15 lbf] 3.4 N [0.76 lbf]
Maximum allowable force 50 N [11.24 lbf] 35 N [7.87 lbf]
Lever operating angle 30° ± 1° center return
60° ± 1° end return
Lever action Self centering or end return
Expected life > 5 million cycles
Weight 0.045 kg [0.099 lb]
Technical Information
JS120 Single Axis Fingertip Joystick
Product specifications
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Environmental parameters
Environmental parameters
Operating temperature -25°C to 70°C [-13°F to 158°F]
Storage temperature -40°C to 85°C [-40°F to 185°F]
Environmental sealing above the flange IP 66 above panel, IP 40 below panel
Technical Information
JS120 Single Axis Fingertip Joystick
Product specifications
12 | ©Danfoss | December 2016 520L0877 | BC00000075en-US0303

Technical Information
JS120 Single Axis Fingertip Joystick
©Danfoss | December 2016 520L0877 | BC00000075en-US0303 | 13

Technical Information
JS120 Single Axis Fingertip Joystick
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Technical Information
JS120 Single Axis Fingertip Joystick
©Danfoss | December 2016 520L0877 | BC00000075en-US0303 | 15

Danfoss Power Solutions is a global manufacturer and supplier of high-quality hydraulic and
electronic components. We specialize in providing state-of-the-art technology and solutions
that excel in the harsh operating conditions of the mobile off-highway market. Building on
our extensive applications expertise, we work closely with our customers to ensure
exceptional performance for a broad range of off-highway vehicles.
We help OEMs around the world speed up system development, reduce costs and bring
vehicles to market faster.
Danfoss – Your Strongest Partner in Mobile Hydraulics.
Go to www.powersolutions.danfoss.com for further product information.
Wherever off-highway vehicles are at work, so is Danfoss. We offer expert worldwide support
for our customers, ensuring the best possible solutions for outstanding performance. And
with an extensive network of Global Service Partners, we also provide comprehensive global
service for all of our components.
Please contact the Danfoss Power Solution representative nearest you.
Local address:
Danfoss
Power Solutions GmbH & Co. OHG
Krokamp 35
D-24539 Neumünster, Germany
Phone: [phone]
Danfoss
Power Solutions ApS
Nordborgvej 81
DK-6430 Nordborg, Denmark
Phone: [phone]
Danfoss
Power Solutions (US) Company
2800 East 13th Street
Ames, IA 50010, USA
Phone: [phone]
Danfoss
Power Solutions Trading
(Shanghai) Co., Ltd.
Building #22, No. 1000 Jin Hai Rd
Jin Qiao, Pudong New District
Shanghai, China 201206
Phone: [phone]
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
already on order provided that such alterations can be made without changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
©Danfoss | December 2016 520L0877 | BC00000075en-US0303
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