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91
Power OFF Operation
Section 2-6
Note
A Programming Console cannot be connected to a CP1H CPU Unit. If
Use
programming console
is set, the CPU Unit will start in RUN mode.
2-6
Power OFF Operation
2-6-1
Overview
The following processing is performed when CPU Unit power is turned OFF.
Power OFF processing will be performed if the power supply voltage falls
below the specified value while the CPU Unit is in RUN or MONITOR mode.
1,2,3...
1.
The CPU Unit will stop.
2.
Outputs from all Output Units will be turned OFF.
Note
(1) All outputs will turn OFF despite the status of the I/O Memory Hold Bit or
I/O Memory Hold Bit at power ON settings in the PLC Setup.
(2) AC Power
85% of the rated voltage: 85 V or less for a 100 to 240 V AC system
(3) DC Power
90% of rated voltage: 20.4 V DC or less
The following processing will be performed if power drops only momentarily
(momentary power interruption).
1,2,3...
1.
The system will continue to run unconditionally if the momentary power in-
terruption lasts less than 10 ms for AC power or 2 ms for DC power, i.e.,
the time it takes the rated voltage at 85% or less to return to 85% or higher
is less than 10 ms for AC power or the time it takes the rated voltage at 90%
or less to return to 90% or higher is less than 2 ms for DC power.
Summary of Contents for Sysmac CP1H
Page 2: ......
Page 3: ...CP1H X40D CP1H XA40D CP1H Y20DT D CP1H CPU Unit Operation Manual Revised October 2014...
Page 4: ...iv...
Page 10: ...x...
Page 18: ...xviii...
Page 22: ...xxii...
Page 34: ...xxxiv Conformance to EC Directives 6...
Page 76: ...42 Function Blocks Section 1 5...
Page 176: ...142 CP series Expansion I O Unit Wiring Section 3 6...
Page 372: ...338 Analog I O XA CPU Units Section 5 5...
Page 578: ...544 Trouble Shooting Section 8 7...
Page 622: ...588 Sample Application Section 9 12 Network Settings Network Tab Network Settings Driver Tab...
Page 668: ...634 Standard Models Appendix A...
Page 744: ...710 Auxiliary Area Allocations by Address Appendix D...
Page 771: ...737 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 772: ...738 Connections to Serial Communications Option Boards Appendix F...
Page 800: ...766 Specifications for External Power Supply Expansion Appendix H...
Page 806: ...772 Index W Work Area 165 work bits 165 work words 165 write protection 379...
Page 808: ...774 Revision History...
Page 809: ......