Rockwell Automation 284D ArmorStart - Safety Version - User Manual - Manual (Page 294)

E-6 Safety I/O Module and TÜV Requirements
Safety-Related Specifications Component Response Time
Probability of Dangerous Failure per hour and MTTF
d
for
Uncontrolled Stop
Maintenance and Internal Part
Replacement The ArmorStart Safety controllers do not have any internal
maintenance procedures or internal replacement parts. Refer to the
1732DS-IB8XOBV4 safety module documentation for maintenance
requirements pertaining to it. It is recommended that the operation of
the 1732DS-IB8XOBV4 safety module and the ArmorStart output
contactor circuits be verified once per year by performing the
contactor circuit verification procedure. The contactor circuit
verification procedure must be performed on an ArmorStart Safety
controller that has experienced an output short-circuit fault prior to
placing the controller back into service.
Contactor Circuit Verification Procedure
Initiate a stop from the safety PLC to the 1732DS-IB8XOBV4
• Verify that the ArmorStart controller output motor voltage is
removed.
• Verify that the SM feedback to the safety PLC transitions to the
open state.
Component Response Time (ms)
1732DS-IB8XOBV4 See Publication 1732DS-IN001*
Bulletin 280 20…40
Bulletin 281 20…40
Bulletin 284 8…12
ArmorStart Safety Controller used in
Combination of ArmorStart Safety-
Related Parts
MTTFd
(years)
Average probability of
dangerous failure per hour
(1/h)
Bulletin 280… 100 5.7E-9
Bulletin 281… 100 6.0E-9
Bulletin 284… 100 6.0E-9