B&R Industries Automation PC 620, User Manual

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Maintenance / servicing • Climate conditions
Automation PC 620 User's Manual V 1.90
6. Climate conditions
6.1 Worst case operation
6.2 Dry heat
6.3 Dry cold
Temperature / humidity Test carried out according to Limits according to
Worst case operation UL 508 UL 508: Industrial control equipment
EN 61131-2: Programmable logic controllers
Dry heat EN 60068-2-2 EN 61131-2: Programmable logic controllers
Dry cold EN 60068-2-1 EN 61131-2: Programmable logic controllers
Large temperature fluctuations EN 60068-2-14 EN 61131-2: Programmable logic controllers
Temperature fluctuations in
operation EN 60068-2-14 EN 61131-2: Programmable logic controllers
Humid heat, cyclic EN 60068-2-30 EN 61131-2: Programmable logic controllers
Humid heat, constant (storage) EN 60068-2-3 EN 61131-2: Programmable logic controllers
Table 267: Overview of limits and test guideline standards for temperature and humidity
Test carried out
according to UL 508 Limits according to
UL 508
Limits according to
EN 61131-2
Worst case operation. Operation of
the device with the max.
environmental temperature
specified in the data sheet at the
max. specified load 3 hours at max. environmental
temperature (min. +40 °C)
duration approx. 5 hours
3 hours at max. environmental
temperature (min. +40 °C)
duration approx. 5 hours
Table 268: Test requirements - worst case operation
Test carried out according to
EN 60068-2-2 Limits according to
EN 61131-2
Dry heat 16 hours at +70 °C for 1 cycle,
then 1 hour acclimatization and
function testing, duration
approximately 17 hours
Table 269: Test requirements - dry heat
Test carried out according to
EN 60068-2-1 Limits according to
EN 61131-2
Dry cold 16 hours at -40° C for 1 cycle,
then 1 hour acclimatization and
function testing, duration
approximately 17 hours
Table 270: Test requirements - dry cold