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186
Behavior for Power Supply Interruptions
Section 8-2
8-2
Behavior for Power Supply Interruptions
8-2-1
Behavior in Voltage Drop
Low Power Supply Voltage for the Internal Circuits
If the power supply voltage for the internal circuit drops to 85% of the rated
voltage or lower, the NE1A-series Controller will turn OFF the outputs.
Low Power Supply Voltage for I/O Circuits
If the power supply voltage for input drops to 85% of the rated voltage or lower
when the power supply voltage for the internal circuit is normal, the NE1A-
series Controller will continue operation but will stop refreshing inputs. Simi-
larly, if the power supply voltage for output drops to 85% of the rated voltage
or lower, the Controller will continue operation but will stop refreshing outputs.
The I/O power supply monitor function of the NE1A-series Controller can be
used to monitor the I/O power supply voltage to confirm if it is normal.
8-2-2
Automatic Recovery from Voltage Drops
Power Supply Voltage for the Internal Circuits
If the power supply is recovered (to 85% of the rated voltage or more)
because of a fluctuation in the power supply voltage, the following might
occur:
1. Operation will automatically restart or
2. A critical error will occur, which will require cycling the power supply to re-
start operation.
These operations occur because the NE1A-series Controller’s operation
becomes unstable and it detects a self-diagnosis error. Operation (1) occurs if
the power supply to the Controller is completely stopped because the power
supply voltage is 85% of the rated voltage or lower, and operation (2) occurs if
the power supply fluctuates around the lower operation limit of the internal
power/voltage detection circuit.
Power Supply Voltage for the I/O Circuits
I/O refreshing is automatically restarted when the power supply is recovered
(to 85% of the rated voltage or more). The I/O power monitor error is also
automatically canceled.
Содержание NE1A-SCPU01 - 07-2009
Страница 2: ...NE1A Series Safety Network Controller NE1A SCPU01 V1 SCPU02 Operation Manual Revised September 2006...
Страница 3: ...iv...
Страница 9: ...x TABLE OF CONTENTS...
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Страница 15: ...xvi...
Страница 33: ...xxxiv Unit Versions of NE1A series Controllers 7 Click the OK Button This completes the procedure...
Страница 70: ...35 Installation Section 3 1 Top Top Bottom Bottom...
Страница 72: ...37 Installation Section 3 1 3 1 3 Dimensions and Weight Dimensions NE1A SCPU01 V1...
Страница 73: ...38 Installation Section 3 1 NE1A SCPU02 Weight Model Weight NE1A SCPU01 V1 460 g max NE1A SCPU02 690 g max...
Страница 85: ...50 Wiring Section 3 2...
Страница 123: ...88 Explicit Message Communications Section 4 7...
Страница 141: ...106 Safety Outputs Section 5 4...
Страница 257: ...222 Connection Status Tables Section 10 8...
Страница 258: ...223 SECTION 11 Maintenance and Inspection 11 1 Inspection 224 11 2 NE1A series Controller Replacement 225...
Страница 261: ...226 NE1A series Controller Replacement Section 11 2...
Страница 264: ...229 Appendix A Local Input and Test Output Setting Example Local Output Setting Example...
Страница 266: ...231 Appendix A Programming Example Local Input and Test Output Setting Example...
Страница 267: ...232 Appendix A Local Output Setting Example...
Страница 269: ...234 Appendix A Programming Example Local Input and Test Output Setting Example...
Страница 270: ...235 Appendix A Local Output Setting Example...
Страница 273: ...238 Appendix A Local Input and Test Output Setting Example Local Output Setting Example...
Страница 275: ...240 Appendix A Programming Example Local Input and Test Output Setting Example...
Страница 276: ...241 Appendix A Local Output Setting Example...
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Страница 293: ...258 Index...