Burkert 0287 Руководство по эксплуатации - Страница 7
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Electrical operating conditions
With high-performance elec-
tronics AC/DC
Ambient temper-
max. +70 °C
ature (intermittent
duty „Fig. 2")
Operating mode
Long-term operation Intermittent
(according to DIN
duty (Determination of the per-
VDE 0580)
mitted operating parameters see
„Fig. 1" und „Fig. 2")
Temperature pro-
Device has a resettable tem-
tection switch
perature protection switch which
switches the device off if unac-
ceptable heating occurs during
intermittent duty. Switches on
again only after cooling down and
after a new switching request.
Tab. 1:
Electrical operating conditions
Intermittent operation for version with high-performance electronics
AC/DC
Without electronics
Characteristic values (according to DIN VDE 0580)
50 Hz, 60 Hz
max. +55 °C
t
– Cycle time
SD
t
– Duty cycle
ED
t
– De-energized pause
SP
ED – Relative duty cycle
Long-term
SH – Switching frequency
operation
Intermittent duty
without
Fig. 1:
t
ED
t
SP
t
SD
Characteristic values intermittent operation for version with highper-
formance electronics AC/DC
english
60
t
[s] =
1
SD
SH
min
ED[%]
t
[s]
t
[s] =
x
SD
ED
100
t
[s] = t
[s] – t
[s]
SP
SD
ED
7