ABB ACS880-01 - Safety Data

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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.

(a)

CCFHFTSCCat.

(%)

MTTF

(a)

PFD

avg

= 5

PFD

avg

= 2

PFH

= 20

(1/h)

SFF

(%)

SIL/

SILCL

Frame

size

= 230 V

2080133≥9010530

5.91E-

2.37E-

2.84E-

>99e3R1

2080133≥9010529

5.91E-

2.37E-

2.84E-

>99e3R2

2080133≥9010489

5.91E-

2.37E-

2.84E-

>99e3R3

2080133≥9010442

6.02E-

2.41E-

2.89E-

>99e3R4

2080133≥9010240

6.02E-

2.41E-

2.89E-

>99e3R5

2080133≥9010340

6.02E-

2.41E-

2.89E-

>99e3

= 400 V, U

= 500 V

2080133≥9010530

5.91E-

2.37E-

2.84E-

>99e3R1

2080133≥9010529

5.91E-

2.37E-

2.84E-

>99e3R2

2080133≥9010489

5.91E-

2.37E-

2.84E-

>99e3R3

2080133≥9010442

6.02E-

2.41E-

2.89E-

>99e3R4

2080133≥9010240

6.02E-

2.41E-

2.89E-

>99e3R5

2080133≥9010340

6.02E-

2.41E-

2.89E-

>99e3

2080133≥909630

6.67E-

2.67E-

3.21E-

99.1e3

= 690 V

2080133≥906221

6.69E-

2.68E-

3.24E-

98.5e3R3

2080133≥905879

6.68E-

2.67E-

3.23E-

98.5e3R5

290 The Safe torque off function

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ABB ACS880-01 - Safety Data

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