Safety Features Fail-safe
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MillipaK 4QPM Controller Manual Page 55 13/08/03
Fail-safe
The controller’s safety system includes a microprocessor watchdog which can detect software
failure, and a hardware fail-safe system which can prevent dangerous runaway conditions in the
event of certain hardware failures.
Every time the controller is powered-up, the software checks that the fail-safe circuit is able to
switch off the MOSFETs and open the contactors.
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