WEG CFW500 Series, Руководство по безопасности

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8 | CFW500
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Safety
NOTE!
According to IEC/EN 61800-5-2, the deceleration ramp of the SS1-t safety
function may fail undetectably. Therefore, this function must not be used if this
failure could cause a dangerous situation in the final application.
1.3 SAFETY DATA
The safety data for the CFW500 frequency inverter equipped with the CFW500-SFY2 is
presented in
Table 1.1 on page 8 .
Table 1.1: Safety data
Safety functions
Safe torque off (STO), as per IEC 61800-5-2
Stop category 0, as per IEC 60204-1
Safe stop 1 time controlled (SS1-t), as per IEC 61800-5-2
Stop category 1, as per IEC 60204-1
Safety category
SIL 3, as per IEC 61508 / IEC 62061 / IEC 61800-5-2
PL e, category 4, as per EN ISO 13849-1
PFD
avg
< 2.74 . 10
-4
PFH (1/h) < 3.13 . 10
-9
MTTF
d
(y) > 1600 years
DC
avg
> 93 %
Proof test interval 20 years
(*)
Response/reaction time < 100 ms
OSSD test pulses
Pulse duration: < 1 ms
Interval between pulses on the same channel: > 8 ms
Interval between pulses on different channels: > 4 ms
Safety input signals
ON: 15 Vdc … < 30 Vdc
OFF: < 2 V
Maximum discrepancy time between
safety input signals
1 s
Safety power supply
+ 24 Vdc ± 15 %,
SELV type according to IEC 60950-1
or PELV type according to IEC 60204-1
(*) This means that the lifetime, or mission time, of the product is limited to 20 years, i.e. the product shall be replaced after
20 years.
NOTE!
The control accessories of the CFW500 frequency inverter provide a + 24 Vdc
power supply (150 mA, PELV type), which can be used to supply the CFW500-SFY2.
NOTE!
General data about the CFW500 frequency inverter can be found in the user’s
manual, available for download on the website:
www.weg.net .