ABB FPTC-02 - Page 83

Note: The failure rate of the PTC sensor is not included in the
calculations.
1.
FPTC module + drive STO, two-channel configuration. See Wiring
example 1 (page 43).
2. FPTC module + drive STO + FSO module with STO function
request, two-channel configuration. See Wiring example
2 (page 44).
3. FPTC module + drive STO + external safety relay, two-channel
configuration. See Wiring example 3 (page 45).
4.
FPTC module + drive STO, one-channel configuration. See Wiring
example 4 (page 46).
5. FPTC module + drive STO + FSO module with STO function
request, one-channel configuration. See Wiring example
5 (page 47).
One-channel
configurations
Two-channel configurations
54321Configuration
11222SIL / SILCL
cccccPL
>60>60>90>90>90SFF (%)
8.25E-097.68E-095.48E-095.54E-095.48E-09
PFH (1/h)
T
1
= 20 a
6.71E-056.17E-054.81E-054.88E-054.81E-05
PFD
avg
T
1
= 2 a
1.69E-041.56E-041.20E-041.21E-041.20E-04
PFD
avg
T
1
= 5 a
00606060DC (%)
22222SC
11111Cat.
00000HFT
6565656565CCF
2020202020T
M
(a)
3AXD10000454332 E
The MTTF
D
value (EN ISO 13849-1) of the FPTC-02 module:
• 1708 years (two-channel connection)
• 1703 years (one-channel connection)
Technical data 83