Pepperl+Fuchs 6000 SERIES - Sequence of events; Turning on power to the enclosure

23
6000 Series Purge/Pressurization System
I/O Manual
T
u
r
n
p
o
w
e
r
o
n
Purge
in
progress
Purge
timer
Control
power
relay
Door
secure
Lock 2
on or
unused
Lock 1
on or
unused
Aux relay 1
energized
Aux relay 2
lock door
Aux relay 2
energized
Aux relay 1
lock door
Purge
settings
not changed
No system
fault
Good vent
communications
Vent flow
>
flow rate
Vent pressure
>
minimum overpressure
<
maximum pressure
No
overload/temp
No immediate
shutdown
No door
open
Door open
input off or
not used
Immediate
shutdown
input off or
not used
Overload/temp
input off or
not used
Enable
timer
Timer = 0
Sequence of events
Turning on power to the enclosure