8
IQAN-LC5-X05
4 Safety
Instruction book, IQAN- LC5-X05
4
Safety
IQAN-LC5-X05
Redundant signals
In order to fulfill high safety demands, the analogue joystick IQAN-LC5-X05 uses dual
outputs per axis. The secondary output is the inverse or "mirror image" of the primary
output. These outputs can be compared in the controller and used to detect faults.
Use of limited signal range
The analogue outputs of the IQAN-LC5-X05 use limited signal range to provide an
additional method for error detection. The operating signal range for primary and
secondary outputs are 10%-90% Vs and 90%-10% Vs respectively. Vs (power supply)
is typically 5Vdc. This allows the controller to detect if a wire is pulled loose (open,
result 0V) or making contact with a powered wire (short, result 5V or greater).
Detecting wiring faults can protect against unintended movement.
W
ARNING
Risk of injury! Do not use in areas with high magnetic fields.
The IQAN-LC5-X05 is based on hall effect sensors. Exposure to high external
magnetic fields may lead to unwanted activation of the output signals.
For maximum allowed external magnetic field, see Appendix A, on page 21.
