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204 Appendix: Safe Torque Off (STO)
Technical data
STO safety relay type
General requirements
EN 61508 and/or EN 61511 and/or
EN ISO 13849-1
Output requirements
No. of current paths
2 independent paths (one for each STO path)
Switching voltage capability
30 V DC per contact
Switching current capability
10 mA per contact per drive
Maximum switching delay
between contacts
<200 ms
Internal supply/multiple
units
Maximum length of safety
circuit from operating contact
to most distant drive
30 m (98.4 ft)
Maximum number of drives in
circuit
16
External supply/multiple
units
External power supply
24 V DC +10% SELV
Current requirement
20 mA per connected drive
Example 1
Simple SIL3 approved safety relay
Type and manufacturer
PSR-SCP- 24UC/ESP4/2X1/1X2 by Phoenix
Contacts
Approvals
EN 954-1, cat 4; EN 61508, SIL3
Example 2
Programmable safety logic
Type and manufacturer
PNOZ Multi M1p by Pilz
Approvals
EN 954-1, cat 4; EN 61508, SIL3; and
EN ISO 13849-1, PL e
Summary of Contents for MicroFlex e190
Page 1: ...ABB motion control User s manual MicroFlex e190 servo drive ...
Page 4: ......
Page 12: ...12 Table of contents ...
Page 26: ...26 Introduction to the manual ...
Page 90: ...90 Electrical installation input output ...
Page 146: ...146 Maintenance ...
Page 178: ...178 Resistor braking ...
Page 186: ...186 Accessories ...
Page 208: ...208 Appendix Safe Torque Off STO ...