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105
Safety Outputs
Section 5-4
Error Latch Time Setting
The time to latch the error state when an error occurs in a safety output circuit
can be set. The error state will continue until the error latch time passes even
if the cause of the error is momentarily removed. When monitoring errors from
a monitoring system, take the monitoring interval into account when setting
the error latch time.
The error latch time can be set in increments of 10 ms between 0 and 65,530
ms. The default is 1,000 ms.
Resetting Errors
All conditions below are necessary to recover from an error that has occurred
in a safety output.
• The cause of the error must be removed.
• Error latch time must have passed.
• The output signals to the output I/O tags from the user application that
correspond to the safety output terminals must go inactive.
Note
If the Dual Channel Mode is set for two outputs to implement redundant cir-
cuits and an error is detected for one of the outputs, the other output can be
made to go inactive without relying on the user program. If the redundant cir-
cuits are implemented using two outputs in Single Channel Mode, the user
program must be used to detect the error (using the External Device Monitor-
ing function block).
Summary of Contents for NE1A-SCPU01 - 07-2009
Page 3: ...iv...
Page 9: ...x TABLE OF CONTENTS...
Page 11: ...xii...
Page 15: ...xvi...
Page 70: ...35 Installation Section 3 1 Top Top Bottom Bottom...
Page 72: ...37 Installation Section 3 1 3 1 3 Dimensions and Weight Dimensions NE1A SCPU01 V1...
Page 85: ...50 Wiring Section 3 2...
Page 123: ...88 Explicit Message Communications Section 4 7...
Page 141: ...106 Safety Outputs Section 5 4...
Page 257: ...222 Connection Status Tables Section 10 8...
Page 261: ...226 NE1A series Controller Replacement Section 11 2...
Page 264: ...229 Appendix A Local Input and Test Output Setting Example Local Output Setting Example...
Page 266: ...231 Appendix A Programming Example Local Input and Test Output Setting Example...
Page 267: ...232 Appendix A Local Output Setting Example...
Page 269: ...234 Appendix A Programming Example Local Input and Test Output Setting Example...
Page 270: ...235 Appendix A Local Output Setting Example...
Page 273: ...238 Appendix A Local Input and Test Output Setting Example Local Output Setting Example...
Page 275: ...240 Appendix A Programming Example Local Input and Test Output Setting Example...
Page 276: ...241 Appendix A Local Output Setting Example...
Page 289: ...254...
Page 293: ...258 Index...