Festo 1971599, Manual

Page: 138 / 150

A. Technical appendix
A-6
Festo P.BE-CPX-FVDA-P2-EN en 1209NH English
Safety characteristics
1)
Mean time to endangering failure (MTTF
d
) [Years] > 750
Probability of an endangering failure per
hour (PFH
D
)
[1/h] < 1.0 x 10
-9
Max. duration of use [Years] 20
Min. request rate for each output channel
(CH0, CH1, CH2) [1/week] 1
Measures for avoidance of common cause failures (CCF) – Maintain operating voltage limits
– Comply with temperature range
– Combine max. 2 output channels in a
shared safety-oriented control circuit
Safety protocol PROFIsafe Profile Version 2.4
2)
Product type testing The functional safety engineering of the
product has been certified by an
independent testing body, see EC-type
examination certificate
www.festo.com.
CE certification
(
declaration of conformity)
In accordance with EU Machinery Direct-
ive 2006/42/EC
Certificate issuing authority TÜV Rheinland 01/205/5294/13
1)
To guarantee the safety level, a minimum switch-on duration of 1 minute for every 8 operating
hours must be planned for each output channel used.
2)
Profile for Safety Technology on PROFIBUS DP and PROFINET IO; Version 2.4, March 2007
Tab. A/3: Safety characteristics