Danfoss VLT HVAC Drive FC 102 Operating Instructions Manual - Page 13

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Danfoss VLT HVAC Drive FC 102 Operating Instructions Manual
Safe Torque Off Technical D...

5 Safe Torque Off Technical Data

NOTICE
For technical specifications and operating conditions for
the frequency converter, refer to the relevant Operating
Instructions of the frequency converter.
NOTICE
The STO signal must be SELV or PELV supplied.
The following values are associated with each safety level:
Reaction time for T37
•
Maximum reaction time: 20 ms
Reaction time = delay between de-energising the STO
input and switching off the output bridge.
Data for EN ISO 13849-1
•
Performance Level "d"
•
MTTF
: 14000 years
d
•
DC: 90%
•
Category 3
•
Lifetime 20 years
Data for EN IEC 62061, EN IEC 61508, EN IEC 61800-5-2
•
SIL 2, SILCL 2
•
PFH < 1E-10/h
•
Component type: Type A
•
HFT (Hardware Fault Tolerance) = 1 (1oo2
architecture)
•
Lifetime 20 years
Data for EN IEC 61508 low demand
•
PFDavg for 1 year proof test: 1E-10
•
PFDavg for 3 year proof test: 1E-10
•
PFDavg for 5 year proof test: 1E-10
SISTEMA Data
Functional safety data are available from a data library for
use with the SISTEMA calculation tool from the IFA
(Institute for Occupational Safety and Health of the
German Social Accident Insurance), and data for manual
calculation. SISTEMA is available for download at
www.danfoss.com/BusinessAreas/DrivesSolutions/SISTEMA/.
®
VLT
Frequency Converters - Safe Torque Off Operating Instructions
MG37D102 - Rev. 2013-11-15
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