3
CONTENTS
NX-series Safety Control Unit User’s Manual (Z930)
1-3 Support Software................................................................................................................... 1-9
1-3-1 Applicable Support Software ...................................................................................................... 1-9
1-3-2 Connection Method and Procedures for EtherCAT Coupler Units.............................................. 1-9
1-3-3 Connection Method and Procedures for EtherNet/IP Coupler Units..........................................1-11
1-4 Exchanging Signals between Units ................................................................................... 1-12
1-4-1 Relationship between Units and Types of Communications..................................................... 1-12
1-4-2 I/O System for Safety I/O Units................................................................................................. 1-15
1-5 Commissioning Procedures............................................................................................... 1-17
1-5-1 Overall Procedure..................................................................................................................... 1-17
1-5-2 Detailed Procedures ................................................................................................................. 1-18
Section 2 Specifications
2-1 General Specifications.......................................................................................................... 2-2
2-2 Specifications of Individual Units ........................................................................................ 2-3
2-2-1 Models ........................................................................................................................................ 2-3
2-2-2 Safety CPU Unit.......................................................................................................................... 2-4
2-2-3 Safety Input Units ....................................................................................................................... 2-6
2-2-4 Safety Output Units....................................................................................................................2-11
2-3 PFH Values ........................................................................................................................... 2-16
2-3-1 Safety CPU Unit........................................................................................................................ 2-16
2-3-2 Safety Input Units ..................................................................................................................... 2-16
2-3-3 Safety Output Units................................................................................................................... 2-16
Section 3 Part Names and Functions
3-1 Safety CPU Unit ..................................................................................................................... 3-2
3-1-1 Parts and Names ........................................................................................................................ 3-2
3-1-2 Indicators .................................................................................................................................... 3-3
3-2 Safety I/O Units ...................................................................................................................... 3-6
3-2-1 Parts and Names ........................................................................................................................ 3-6
3-2-2 Indicators .................................................................................................................................... 3-9
3-3 Safety I/O Functions............................................................................................................ 3-11
3-3-1 Safety Input Functions...............................................................................................................3-11
3-3-2 Safety Output Functions ........................................................................................................... 3-35
Section 4 Calculating Safety Reaction Times
4-1 Safety Reaction Times .......................................................................................................... 4-2
4-1-1 Safety Reaction Times................................................................................................................ 4-2
4-1-2 Calculating Safety Reaction Times............................................................................................. 4-2
4-1-3 Verifying Safety Reaction Times................................................................................................. 4-4
4-2 Safety Task............................................................................................................................. 4-5
4-2-1 Safety Task ................................................................................................................................. 4-5
4-2-2 Operation of Safety Task ............................................................................................................ 4-5
4-2-3 Calculating the Minimum Safety Task Period ............................................................................. 4-6
4-2-4 Setting the Safety Task Period.................................................................................................... 4-7
4-3 FSoE Watchdog Timers ........................................................................................................4-9
4-3-1 FSoE Watchdog Timers.............................................................................................................. 4-9
4-3-2 Checking FSoE Watchdog Timers.............................................................................................. 4-9
4-3-3 Settings for FSoE Watchdog Timers.........................................................................................4-10
4-3-4 Changing FSoE Watchdog Timers ............................................................................................4-11