positape
®
Combined displacement and inclination sensors - WBT Series
Version 2.1.0
www.asm-sensor.com
19
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Reliability Characteristics
Models with magnetic
encoder
WBT61, WBT85, WBT21
Output
single-channel
MCANOP
CAN-BUS (CANopen)
dual-channel
MCANOPR
CAN-BUS, redundant (CANopen)
Characteristics
Device type
B
Life period (electronics) MTTF
d
320 years / channel
*)
Probability of failure PFH (
λ
DU
)
350 Fit / channel
Life period (mechanics) B
10
5*10
6
cycles (draft)
Probability of failure (mechanics)
λ
MECH
0,1 * C
h
/ B
10
C
h
= cycles per hour
Working life
10 years
Calibration intervall
annually
Operating conditions
Pull-out speed (max)
1 m/s
Pull-in speed (max)
1 m/s
Assembly
No deflection
Standards
Failure rate of electronic components
(Siemens)
SN 29500
*)
= Reference Conditions: Reference Supply Voltage UB
REF
= 24 V, Reference Temperature
ϑ
REF
= 60 °C
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