Appendix: Safe torque off (STO) 427
Safety data
The safety data for the Safe torque off function is given below.
Note: The safety data is calculated for redundant use, and does not apply if both STO
channels are not used.
Type
ACS355-
Frame
size
IEC 61508 and IEC/EN 61800-5-2
SIL SC PFH
(1/h)
HFT SFF
(%)
T1
(a)
PFD
(T1=2a)
1-phase U
N
= 200…240 V (200, 208, 220, 230, 240 V)
01x-02A4-2 R0 3 3 6.20E-09 1 91 10 4.77E-08
01x-04A7-2 R1 3 3 6.20E-09 1 91 10 4.77E-08
01x-06A7-2 R1 3 3 6.20E-09 1 91 10 4.77E-08
01x-07A5-2 R2 3 3 6.16E-09 1 92 10 4.85E-08
01x-09A8-2 R2 3 3 6.16E-09 1 92 10 4.85E-08
3-phase U
N
= 200…240 V (200, 208, 220, 230, 240 V)
03x-02A4-2 R0 3 3 6.20E-09 1 91 10 4.65E-04
03x-03A5-2 R0 3 3 6.20E-09 1 91 10 4.65E-04
03x-04A7-2 R1 3 3 6.20E-09 1 91 10 4.65E-04
03x-06A7-2 R1 3 3 6.20E-09 1 91 10 4.65E-04
03x-07A5-2 R1 3 3 6.20E-09 1 91 10 4.65E-04
03x-09A8-2 R2 3 3 6.16E-09 1 92 10 4.61E-04
03x-13A3-2 R2 3 3 6.16E-09 1 92 10 4.61E-04
03x-17A6-2 R2 3 3 6.16E-09 1 92 10 4.61E-04
03x-24A4-2 R3 3 3 6.16E-09 1 92 10 4.62E-04
03x-31A0-2 R4 3 3 6.16E-09 1 93 10 4.62E-04
03x-46A2-2 R4 3 3 6.16E-09 1 93 10 4.62E-04
3-phase U
N
= 380…480 V (380, 400, 415, 440, 460, 480 V)
03x-01A2-4 R0 3 3 6.16E-09 1 92 10 4.61E-04
03x-01A9-4 R0 3 3 6.16E-09 1 92 10 4.61E-04
03x-02A4-4 R1 3 3 6.16E-09 1 92 10 4.61E-04
03x-03A3-4 R1 3 3 6.16E-09 1 92 10 4.61E-04
03x-04A1-4 R1 3 3 6.16E-09 1 92 10 4.61E-04
03x-05A6-4 R1 3 3 6.16E-09 1 92 10 4.61E-04
03x-07A3-4 R1 3 3 6.16E-09 1 92 10 4.61E-04
03x-08A8-4 R1 3 3 6.16E-09 1 92 10 4.61E-04
03x-12A5-4 R3 3 3 6.16E-09 1 92 10 4.62E-04
03x-15A6-4 R3 3 3 6.16E-09 1 92 10 4.62E-04
03x-23A1-4 R3 3 3 6.16E-09 1 92 10 4.62E-04
03x-31A0-4 R4 3 3 6.16E-09 1 93 10 4.62E-04
03x-38A0-4 R4 3 3 6.16E-09 1 93 10 4.62E-04
03x-44A0-4 R4 3 3 6.16E-09 1 93 10 4.62E-04
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