GEA D 10 - Timer Function Descriptions

12 8555-9201-000 / 0109
Mechanical Separation / GEA Westfalia Separator
1.5 Timer description - T00 to T62
Tim e r Designation Ac tio n Des c riptio n
Active in
-0136-
-0196-
-91-
T00
Partial ejection Operat. water valve V3 opens. The solids space of the bowl is partially ejected by
actuating the operating water valve V3 (option).
X X X
T01
Displacement
Displacement water valve V”
opens.
The bowl content is displaced without loss by
actuating the displacement water valve V2.
If selected in the control system, the time is calcu-
lated automatically during the sensor check.
X X X
T02
Filling
Filling water valve V2 opens.
The required water seal in the bowl is created by
actuating the filling water valve V2.
If selected in the control system, the time is calcu-
lated automatically during the sensor check.
Filling water is also active during the WMS
sensor check on HFO separators.
--- X X
T03
Waiting
Product feed valve V1 closes.
Clean oil discharge pressure
drops.
Time elapses before the displacement water func-
tion when key “Process START” has been ac-
tuated.
X X X
T04
Total ejection Operat. water valve V3 opens. The solids space of the bowl is emptied by actuat-
ing the operating-water valve V3.
X X X
T05
Speed recovery after
total ejection
Time to reach operating speed after speed drop
during total ejection.
X X X
T06
Closing water im-
pulse
Operat. water valve V3 opens.
Time for safety closing water to keep the bowl
closed during separation.
X X X
T07
Alarm delay
After this time has expired, the
product feed valve i closed and
an alarm is triggered.
After this time has expired, standard alarms like
PAL1/PAH1, TAL/TAH, PAH2 etc. are triggered.
X X X
T08
Waiting after dis-
placement
Time for stabilizing the system after displacement.
X X X
T09
Waiting after filling Time for stabilizing the system after filling.
---
X
X
T10
Separator starting
Press button „Separator 1“ has
been activated,
Separator motor runs up.
Time to reach the operating speed of the separator
after pressing button “Separator 1”.
X X X
T11
Alarm bridging
Alarms not active.
Time to stabilize the process conditions.
X
X
X
T12
Waiting after 1st
ejection
Time to reach operating speed after speed drop
during the 1. total ejection.
X X X
T13
Speed recovery after
partial ejection
Time to reach operating speed after speed drop
during the partial ejection.
X X X
T14
Closing water interval Time interval between two closing water pulses.
X
X
X
T15
Circulation valve
close
Circulation valve V5 closes.
Time for which the circulation valve V5 is closed.
X --- ---
T16
Circulation valve
open
Circulation valve V5 opens.
WMS sensor is active.
Time for which the circulation valve V5 is open.
The WMS sensor monitors the feeler current.
X --- ---
T17
Water content
bridging
Warning water content.
Not active.
Time to prevent a false alarm due to too much
filling water. Time starts with T20 “Separation”.
--- X ---
T18
Sludge tank alarm
delay
After this time has expired, the
product feed valve i closed and
an alarm is triggered.
Time delay for sludge tank alarm LAHH. The prod-
uct feed valve is closed and an ejection cycle is
started.
X X X
T19
Water impulse at
start
Operat. water valve V3 opens. Time to close the bowl after reaching the operating
speed by opening the operating water valve V3.
X X X
T20
Separation
Product feed valve V1 opens.
Time to adjust the duration of the separating time.
(time interval between ejections)
X X X
T21
Min. separation time
In the case of a pressure drop
during this time, the product
feed valve V! is closed and an
alarm and an ejection are
triggered. After this time has
expired, the product feed valve
V1 is closed and an ejection is
triggered without alarm.
Time during separation in which a system pressure
drop (SMS) is evaluated as an alarm during this
time.
The time starts together with the separating time
T20. A pressure drop agter this time has expired
triggers an ejection (“self-thinker” control).
X --- ---
T22
High water content
Water discharge valve V6 is
open.
Time to trigger the alarm „WMS system error – too
much water” when the WMS sensor outputs a
water signal during the entire running time.
The SMS sensor PT2 must simultaneously output
a pressure signal.
X X ---
T23
Post-run feed pump
Feed pump is switched off
after this time has expired.
Time in which the pump continuous to run to let
the heater cool off.
X X X
T24
Post-run sludge
pump
Sludge pump is switched off
after this time has expired.
Time in which the sludge pump continues to run to
ensure that the sludge tank is emptied completely.
X X X
T25
Vibration 1 - delay
After this time has expired,
Time delay for the vibration 1 alarm which is
X
X
X