9 supplementary data, 1 service life graph of output relays, 2 categories – Pilz PNOZ s30 24-240VACDC 2 n/o 2 n/c User Manual
Page 72: 1 safety level, Section 9, Supplementary data, Service life graph of output relays, Categories, Safety level
Supplementary data
Operating Manual PNOZ s30
1001715-EN-13
72
Supplementary data
Service life graph of output relays
The service life graphs indicate the number of cycles from which failures due to wear must
be expected. The wear is mainly caused by the electrical load; the mechanical load is negli-
gible.
Example
}
Inductive load: 0,2 A
}
Utilisation category: AC15
}
Contact service life: 1,000,000 cycles
Provided the application requires fewer than 1,000,000 cycles, the PFH value (see techni-
cal details) can be used in the calculation.
To increase the service life, sufficient spark suppression must be provided on all output
contacts. With capacitive loads, any power surges that occur must be noted. With contac-
tors, use freewheel diodes for spark suppression.
Categories
Safety level
The maximum achievable safety level depends on the encoder, the wiring and the operat-
ing mode of the PNOZ s30.
9
9.1
9.2
9.2.1