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Safe Torque Off
4-6
AC890PX AC Drive
EN61800-5-2:2007 and EN61508
(Adjustable speed electrical power drive systems) and
(Functional safety of electrical/electronic/programmable electronic safety-related systems)
STO aligns to the following aspects of this standard:
Safety Integrity Level 3
Probability of dangerous random hardware failures per hour (PFH) must be ≤ 10
-7
Subsystems type A according to EN61508-2:2001 para 7.4.3.1.2
Hardware Fault Tolerance (HFT) = 1
Safe Failure Fraction (SFF) must be ≥ 90%
Summary of Contents for AC890PX Series
Page 17: ...2 5 Product Overview AC890PX AC Drive 890PX bottom wire entry ...
Page 144: ...The Keypad 7 9 AC890PX AC Drive The Menu System Map ...
Page 145: ...7 10 The Keypad AC890PX AC Drive The Menu System Map continued ...
Page 328: ...Programming D 88 AC890PX AC Drive Functional Description ...
Page 386: ...Programming D 146 AC890PX AC Drive Setpoint Drive Frequency Frequency 1 Frequency 2 ...