Inovance AC800 Series - Operations at Instantaneous Power-Off

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6 Operating Instructions
AC800 Series Intelligent Machine Controller Hardware User Guide
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After the power-o󶍽 evaluation time, even if the voltage is reset, the PLC still stops running, as shown in the
following 󶍾gure:
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100-200ms
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The times in the above 󶍾gure are described as follows:
Item Description
Power-o󶍽 evaluation time
The time after the power supply voltage drops until the UPS power
supply detects that the power supply is o󶍽. Before it is determined
that the power supply is o󶍽, the PLC continues to operate.
Power-o󶍽 detection delay
The period from the time when the UPS detects that the power supply
is o󶍽 to the time when the PLC starts to perform power-o󶍽 operations.
6.2.2 Operations at Instantaneous Power-o󶍽
When an instantaneous power-o󶍽 occurs within the following time, the user program will continue to be
executed.
Power Type Time before Power-o󶍽
Non-UPS Power o󶍽 immediately
UPS Below 15 ms
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