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Momentary Power Interruption with Continued Operation
Execution of the user program will continue if a momentary power interruption is less than the follow-
ing times.
The CPU Unit will not interrupt
execution of user program
Momentary power interruption time
from voltage drop until recovery
Voltage drop
Executing user program
DC: 20.4 V max.
Power OFF detection time
2 to 8 ms
Voltage recovery
Processing after Power Interruption Is Confirmed
After a power interruption is confirmed, the CPU Unit performs the following processing and then
stops.
Item
Description
I/O refresh
I/O refresh stops, and all outputs are turned OFF. Tag data links
via the EtherNet/IP stop.
Processing
SD Memory Card access in
progress
Any writing is interrupted, files are closed, and the Card is un-
mounted.
Transferring user program
(including online editing)
Interrupted.
As a result, an error will occur the next time that the power is
turned ON. The Controller will not operate.
User program execution
User program execution is aborted even during execution of an in-
struction.
Saving event log
The time that a power interruption occurs and the cause (primary
power interruption) of the interruption are recorded.
5-1-3
Resetting the Controller from the Sysmac Studio
You can reset the CPU Unit from the Sysmac Studio.
A reset from the Sysmac Studio follows the same operation as cycling the power supply of the Unit
power.
Resetting is possible, however, only when the CPU Unit is in PROGRAM mode.
Confirm the following status before the CPU Unit Reset.
• Check the status of output loads.
• Make sure that SD Memory Card access is not in progress.
5 Installation and Wiring
5-7
NX-series NX1P2 CPU Unit Hardware User’s Manual (W578)
5-1 Processing at Power ON and Power OFF
5
5-1-3
Resetting the Controller from the Sysmac Studio
Содержание NX1P2 series
Страница 8: ...Manual Structure 6 NX series NX1P2 CPU Unit Hardware User s Manual W578...
Страница 52: ...Revision History 50 NX series NX1P2 CPU Unit Hardware User s Manual W578...
Страница 82: ...2 System Configuration 2 10 NX series NX1P2 CPU Unit Hardware User s Manual W578...
Страница 170: ...a b Flat blade screwdriver 1 2 5 Installation and Wiring 5 26 NX series NX1P2 CPU Unit Hardware User s Manual W578...
Страница 174: ...4 Close the Memory Card cover 5 Installation and Wiring 5 30 NX series NX1P2 CPU Unit Hardware User s Manual W578...
Страница 176: ...4 Close the Memory Card cover 5 Installation and Wiring 5 32 NX series NX1P2 CPU Unit Hardware User s Manual W578...
Страница 224: ...0 4 mm Side view Front view 2 5 mm 5 Installation and Wiring 5 80 NX series NX1P2 CPU Unit Hardware User s Manual W578...
Страница 258: ...Appendices A 10 NX series NX1P2 CPU Unit Hardware User s Manual W578...
Страница 259: ...I Index I 1 NX series NX1P2 CPU Unit Hardware User s Manual W578 I...
Страница 262: ...Index I 4 NX series NX1P2 CPU Unit Hardware User s Manual W578...
Страница 263: ......