F1000 User's Manual
6
Hardware
System designers must understand that there may be some unsafe
factors from the failure of the control system device, and the electrical
conflict in the operation interface could cause the device to start, this may
lead to a certain degree of damage to the operator.
If you or your company needs the operation interface when use a programmable control
system, you must understand the potential security risks and take some appropriate preventive
measures. Although your detailed design steps are constituted according to your specific
application, you need to pay attention to the general prevention matters about installing
programmed control firmware. These precautions meet NEMA ICS 3-304 control standard.
Program
Attention
To meet the security proposed of ICS, you must check whether the program exist safety
constraints about the can-write register of hazardous parts. Moreover, to ensure
personal safety, the device must be equipped with an emergency stop.
ICS 3-304.81 safety recommendations:
Carefully consider the function of the emergency stop; it must be independent of the
programmable controller outside.
In the operator can directly contact mechanical position, such as loading and unloading
machine tool position or the machine automatic-run position, you must carefully
consider the function of the manual device or the other alternate method. It needs to be
independent of the programmable controller outside, can automatic start or stop the
system. If you need to modify the program in the system-running situation, you should
take measures to ensure the modification is the necessary.
*These suggestions are to prevent the risk of device failure.
●
ICS3-304.81 safety recommendations is in the permission of the NEMA, and copy from
NEMA ICS 3-304 standard.
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