HE 5750 Operating Instructions
#371627 | Version 1.1
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9.4.1 Parameter description (parameter groups 1-6)
Note!
Make sure that the number of valves have been parametrised correctly.
This means, for example, that no more valves can be distributed on the
manifolds, than are assigned to the respective slave, otherwise
malfunctions may occur.
For example, valves are not triggered correctly or alarm messages are
shifted due to inconsistent distribution and do not apply to the current
malfunction.
Note!
The assignment of manifolds is variable. For a system with two Slaves
per chamber and three manifolds, set the number of manifolds to 2 per
Slave. Depending on the number of valves in the first manifold and the
valve number on the respective Slave, the first or the second Slave on a
manifold can be reduced, if all valves are assigned to the first manifold.
Parameter
Description
1 System description
Parameter block for the description of the filter setup.
1.1 Chambers
Number of chambers in a filter.
1.2 Valves / chamber
Number of valves per chamber.
Correct value is absolutely necessary for flawless function of the control
process.
1.3 Slaves / chamber
Slave boxes per chamber
Each Slave box controls 32 valves maximum. In case of more than 32
valves per chamber, a second Slave box is necessary.
1.4 Valves on 1. Slave
If the system has two slaves per chamber, this parameter controls the
distribution of the valves on Slave 1 and Slave 2.
1.5 Manifolds / Slave
The valve controller (Slave Box) can switch off the air pressure of a local
manifold with an isolation valve, especially if 2 manifolds are used.
With the function "valve monitoring", one Slave box can monitor the
pressure in two manifolds. For this purpose, the pressure curve during
valve triggering is measured.
The pressure drop during valve triggering and the pressure increase
afterwards must reach certain values to avoid that a valve error is
recorded. The values can be adjusted with parameter 13.6 Pressure
drop.
1.6 Valves in 1. manifold
(on 1st Slave)
The number of valves for one manifold.
In case of two manifolds, the number of valves according to manifold
distribution.
If two manifolds per Slave box are used and the distribution is not even,
this parameter indicates the number of valves in the first manifold. This
information is used to select the correct pressure transmitter for valve
controlling.
The parameter has no significance without the valve controlling function.
1.7 valves 1. manifold Sl. 2
If the system has two slaves per chamber, this parameter controls the
distribution of the valves on the manifolds for the second Slave.
1.8 Dust detectors / chamber
Dust detectors monitor the filter outlet, the pure gas side.
Dust detectors can be e.g. measuring transducers with a constant output
signal of 4...20 mA or limit switches with switch contact..
The voltage supply of the dust sensor can be selected on the Slave box.
The Slave box parameter is different for analogue or switch sensors. The
first Slave box can evaluate two dust sensors. The dust sensors may be
of different types (analogue value or switch sensor). The signals are
handled int
ernally as ‘Switched OR’.
1.9 Isolation valves / Slave
A valve controller can switch two isolation valves for 2 manifolds.
