
B-63494EN/02 TABLE OF CONTENTS
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TABLE OF CONTENTS
DEFINITION OF WARNING, CAUTION, AND NOTE .................................s-1
1 OVERVIEW .............................................................................................1
1.1 DIRECTIVE AND STANDARDS .................................................................... 2
1.1.1 Directives..................................................................................................................2
1.1.2 Related Safety Standards..........................................................................................2
1.1.3 Risk Analysis and Evaluation...................................................................................2
1.2 DEFINITION OF TERMS............................................................................... 3
1.2.1 General Definition of Terms ....................................................................................3
1.2.2 Definition of Terms Related to the Safety Function ................................................3
1.3 BASIC PRINCIPLE OF DUAL CHECK SAFETY ........................................... 4
1.3.1 Features of Dual Check Safety .................................................................................4
1.3.2 Compliance with the Safety Standard (EN954-1, Category 3) ................................5
1.3.2.1 Latent error detection and cross-check ................................................................ 6
1.3.2.2 Safety monitoring cycle and cross-check cycle................................................... 6
1.3.2.3 MCC off Test....................................................................................................... 7
1.3.2.4 Error analysis....................................................................................................... 7
1.3.2.5 Remaining risks ................................................................................................... 8
1.4 GENERAL INFORMATION ......................................................................... 10
2 SYSTEM CONFIGURATION................................................................. 12
3 SAFETY FUNCTIONS...........................................................................14
3.1 APPLICATION RANGE ............................................................................... 15
3.2 BEFORE USING THE SAFETY FUNCTION ............................................... 19
3.2.1 Important Items to Check Before Using the Safety Function ................................19
3.2.2 MCC off Test of the Safe Stop Function................................................................19
3.3 STOP........................................................................................................... 20
3.3.1 Stopping the Spindle Motor ...................................................................................20
3.3.2 Stopping the Servo Motor ......................................................................................21
3.3.3 Stop States ..............................................................................................................21
3.4 SAFE-RELATED I/O SIGNAL MONITORING ............................................. 23
3.5 EMERGENCY STOP................................................................................... 29
3.6 SAFE SPEED MONITORING...................................................................... 30
3.7 SAFE MACHINE POSITION MONITORING ............................................... 32
3.8 MCC OFF TEST .......................................................................................... 34
3.9 PROGRAMMABLE SAFE-RELATED I/O SIGNALS.................................... 36