59
Power OFF Operation
Section 2-6
The following timing chart shows the CPU Unit power OFF operation in more
detail.
Power OFF Timing Chart
Description of Operation
Power OFF will be detected if the DC power supply falls below 85% of the
rated voltage for the power OFF detection time (2 ms minimum for DC
power). The CPU reset signal will turn ON while the internal power supply is
being held and the CPU Unit will be reset.
2-6-2
Instruction Execution for Power Interruptions
If power is interrupted and the interruption is detected when the CPU Unit is
operating in RUN or MONITOR mode, the instruction currently being executed
will be completed and then the CPU Unit will be reset.
Power OFF detection time:
The time from when the power supply voltages drops to 85% for DC power until the
power OFF condition is detected.
Holding time for 5 V internal power supply after power OFF detection:
The maximum time that the 5 V internal power supply voltage will be maintained after
the power OFF condition is detected. The holding time is fixed at 1 ms.
DC: 85% of rated voltage
Operation always stopped
at this point regardless.
Power OFF detected signal
Program execution status
CPU reset signal
Cyclic tasks or interrupt tasks
Stopped
Power OFF detected
Power OFF Detection
Delay Time
DC: 2 ms
Holding time for 5 V internal
power supply after power
OFF detection: 1 ms
Содержание CP1L-EL20DR-D
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Страница 34: ...xxxiv Software Licenses and Copyrights 7...
Страница 178: ...144 Connecting the CX Programmer Section 5 1 Click the Connect button to connect and then connection online is completed...
Страница 192: ...158 Trial Operation and Debugging Section 5 3...
Страница 250: ...216 Automatic Clock Adjustment and Specifying Servers by Host Name Section 6 7...
Страница 666: ...632 Trouble Shooting Section 11 7...
Страница 696: ...662 Standard Models Appendix A...
Страница 805: ...771 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 806: ...772 Connections to Serial Communications Option Boards Appendix F...
Страница 836: ...802 PLC Setup Appendix G...
Страница 838: ...804 TCP Status Transitions Appendix H...
Страница 840: ...806 Ethernet Network Parameters Appendix I...
Страница 842: ...808 Buffer Configuration CP1L EL EM Appendix J...
Страница 844: ...810 Ethernet Specifications Appendix K...
Страница 851: ...Index 817 work words 118 write protection 447...
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