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.
W
Warning
Unintended movement of the machine or mechanism may cause injury to the technician or bystanders.
The module will be powered up if battery voltage is applied to the module's output pin. To protect
against unintended movement, secure the machine.
C
Caution
Warranty will be voided if module is damaged.
Avoid significant current driven back through an output pin.
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
JS2000 Joystick
Product installation
12 |
©
Danfoss | May 2017
520L0876 | BC00000073en-US0102
