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Command Reference: Function Blocks
Section 6-5
Function Tests
For some safety gate applications, safeguarding devices require physical veri-
fication that the device continues to operate properly (e.g., required for Cate-
gory 2 safety gate applications).
If the function test is enabled for the Safety Gate Monitoring function block, a
safety gate test in which the safety gate must be opened and then closed
again can be added as a condition for turning ON the Output Enable signal.
If enabled, the safety gate test must be executed under the following condi-
tions.
1. Startup
The safety gate test must be executed when the NE1A-series Controller is
started (i.e., when the Controller’s operating mode changes from IDLE
Mode to RUN Mode). If the test ends normally, the Output Enable signal
will turn ON.
2. Function Test Request from the Machine
The safety gate test must be executed after the NE1A-series Controller de-
tects the Function Test Signal from the machine turn ON and before the
Function Test Signal turns ON again. If the Function Test Signal turns ON
a second time before the safety gate test is completed normally, a function
test error will occur, the Output Enable signal will turn OFF, and the Func-
tion Test Error signal will turn ON.
3. Error Detected in Safety Gate Monitoring Function Block
The safety gate test must be executed if a function test error, discrepancy
error, or other function block error occurs (after removing the cause of the
error).
The Function Test Required Signal from the Safety Gate Monitoring function
block will turn ON when a safety gate test is required and it will remain ON
until the safety gate test has been completed normally.
Set Parameters
The discrepancy time and synchronization time must be equal to or greater
than the NE1A-series Controller’s cycle time.
Parameter
Setting range
Default setting
Input Type
Single Channel
Dual Channel Equivalent (1 pair)
Dual Channel Complementary (1 pair)
Two Dual Channel Equivalent (2 pairs)
Two Dual Channel Complementary (2 pairs)
Dual Channel
Equivalent
(1 pair)
Function Test
No Function Test/Function Test Required
No function test
Discrepancy Time
Pair 1
0 to 30 s in 10-ms increments
A discrepancy time check will not be performed if 0 is
set.
30 ms
Discrepancy Time
Pair 2
Synchronization
Time
0 to 30 s in 10-ms increments
A synchronization time check will not be performed if 0
is set.
300 ms
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...