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HE 5760 Operating Instructions
# 372449| Version 3.2
14 Glossary
Term
Definition / Explanation
Operating mode,
permanent
Permanent processing of the parameterised valve sequence.
Control of the HE 5760 via start/stop signals.
Operating mode, dp
controller
It can be regulated to a differential pressure value. The output
variable of the controller is the pause time of the valve
activation. A filter characteristic that is defined via interpolation
points can be used to shorten the pause time.
Operating mode, dp
threshold
Control of cleaning via the dp signal. Cleaning starts when the
parameterised upper threshold is exceeded and stops when
the value falls below the lower threshold.
Drain valve
The control supports drain valves on the local pressure
tanks.
Background cleaning
If no regular cleaning takes place within a parameterisable
time, background cleaning becomes active. This is often the
case with small volume flows or lower dust inputs. At the same
time, the differential pressure is monitored for a minimum
value. If the value falls below this, it is assumed that there is no
fan operation and cleaning is not continued.
Chamber sequence
A chamber offset of 1 causes chamber 1 valve 1, chamber 2
valve 1, chamber 3 valve 1 etc. to be cleaned.
A chamber offset has a higher priority than a valve offset. A
chamber offset of 0 causes all valves to be controlled
according to the valve sequence in chamber 1, then the valves
of chamber 2 to be cleaned, etc.
Post-cleaning
If the complete filter is taken out of the process, re-cleaning
may be necessary. The post-cleaning extends over the
complete filter and carries out the parameterised number of
cycles/valves etc. The post-cleaning uses 'Control time 2'.
Sub-cycle
Cleaning runs as long as the required start conditions are
present. If the start condition is missing, cleaning is interrupted.
The cleaning is then continued with the next following valve
Valve sequence
A valve offset of 2 causes control of valve 1, valve 3, valve 5,
etc.
Full cycle
If the required start condition is given, a complete cleaning
cycle is carried out over all active valves.
Forced cleaning
Setting this condition starts the cleaning process independently
of other necessary conditions (e.g. dp thresholds). Cleaning
runs as long as the condition is set or until all (full cycle) active
valves have been cleaned. In connection with the partial cycle
operating mode, the valves can be controlled individually.
