2. Safety
CSMIO / IP-A device is powered by 24V safe voltage. I/O control lines are optically isolated also PC con-
nection is galvanically isolated. The device does not constitute direct threat to health and life of a user.
Designing a complete control system (control cabinet), you should draw attention to several issues, so
that the entire system does not pose any hazard during use.
Always use NC contacts (Normal Closed) for limit switches and safety switch. Thanks to it - a wiring mis-
take or i.e. plug-ins disconnection will stop the machine.
Pay special attention to an emergency stop circuit. Control system must be designed in such a way that
when you press an emergency stop mushroom, controlled machine stops immediately in all axes. You
should also take into account the possibility of failure of particular system components such as main
controller, or axis drives
.
For that purpose you can use (not required) a standard safety relay (i.e. from PILZ Company). The safety
switch mushroom, FAULT signals of drives and inverter and eventually other alarm signals – you should
connect to input circuits. Output or outputs - depending on a used module - should be connected to
CSMIO/IP-A controller, and defined as emergency stop. Outputs of security module should be also
connected to axis drives, inverters, etc. This way we get double protection – if, by inappropriate
configuration or CSMIO/IP-A controller failure - the emergency would not work, then information goes to
axis drives, which can properly respond to it. It works both sides: if drives would not react, you always
have the controller.
The CSMIO/IP-A controller in active state on the input line - defined as an E-Stop stops the motion on all
output channels within 1ms.
CS- Lab s.c. – CSMIO/IP- A - CNC controller
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