ADV200 WA • Functions description and parameters list
159
26.10 – PROCESS/PUMP CLEAN
The pump cleaning function is used to remove any residual solid matter that may have got caught in the rotor. During
the cleaning cycle the pump is made to turn alternately forwards and backwards for a set number of turns.
Each single cleaning cycle consists of the following steps:
• The pump is stopped
• The pump is restarted to turn forwards and the speed is brought to the value set in
Clean fwd speed
in the time set in
Clean acc time
.
• The speed set in
Clean fwd speed
is then maintained for the time set in
Clean fwd time
.
• The pump is stopped in the time set in
Clean dec time
.
• The pump remains inactive for the time set in
Clean stop time
.
• The pump is restarted to turn backwards and the speed is brought to the value set in
Clean rev speed
in the time set in
Clean acc time
.
• The speed set in
Clean rev speed
is then maintained for the time set in
Clean rev time.
• The pump is stopped in the time set in
Clean dec time
.
• The pump remains inactive for the time set in
Clean stop time
.
This cleaning cycle is repeated for the number of times set in
Clean num cycles
.
If
Clean fwd time
= 0, the entire forward rotation phase is bypassed (including the relative acceleration and decelera-
tion).
If
Clean rev time
= 0, the entire backward rotation phase is bypassed (including the relative acceleration and decel-
eration).
Cleaning cycle startup
There are several conditions that start a cleaning cycle sequence:
At startup:
a cleaning cycle is run each time the pump is started.
Timed:
cleaning is started periodically after a programmable length of time.
External event:
cleaning starts if an external digital signal is enabled.
Analog measurement: cleaning is started if an analog value exceeds a threshold for a given time.
All the above conditions are independent and can be programmed separately. In case of timed startup, the time
counter is reset if a cleaning cycle is started during the interval between one cycle and the next due to another source
(startup, external event, analog measurement).
Содержание ADV200 WA
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