Mitsubishi MELSEC-WS series, Руководство пользователя

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Chapter 12
110
Technical data
Safety specific characteristics
All these data are based on an ambient temperature of +40 °C.
Safety integrity level SIL3 (IEC 61508)
SIL claim limit SILCL3 (IEC 62061)
Category Category 4 (EN/ISO 13849-1)
Performance Level PL e (EN/ISO 13849-1)
PFD 1.6 × 10 -7
PFHd at I = 0.75 A, switching
frequency = h
-1
(see also Table 61)
1.2 × 10
–9
B10d value, switching frequency = h
-1
0.75 A (AC 15)/4,150,000 (see also Table 61)
SFF 99.6 %
DC 99 %
T
M
(mission time) Depending on PFHd value, ambient temperature,
load and switching operations (see Table 61)
No. of mechanical switching
operations Min. 200,000
Load
type
I[A] Switching frequency
Switching operations
per annum
B10d PFHd
AC15
0.1 1/h 8760 10,000,000 5.00 × 10
-10
0.75 1/h 8760 4,150,000 1.20 × 10 -09
3 1/h 8760 400,000 1.20 × 10
-08
5 1/h 8760 70,000 7.20 × 10 -08
DC13
1 1/h 8760 2,000,000 2.50 × 10
-09
3 1/h 8760 450,000 1.10 × 10 -08
AC1
2 1/h 8760 1,000,000 5.00 × 10
-09
4 1/h 8760 600,000 8.40 × 10 -09
In order to reach SILCL3 in accordance with IEC 62061 (see chapter 12), the
following test must be made at least every 365 days:
 The MELSEC-WS safety controller must be powered down.
 The MELSEC-WS safety controller must be powered up.
 All safety functions of the connected safety sensors must be verified.
Table 61:
PFHd values WS0-4R0
ATTENTION