EWS ES2030 CV, Instruction Manual

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ES2030 CV Display and modification of the basic settings 13
External triggering
In external triggering, one pulse is sent to terminals 5-7 (12-14). The valve then
independently cycles through all the regeneration phases in accordance with the
times set on the valve. These times are normally set on a drum switch on the
remote control valve. The same times must additionally be entered at program step
4.1 so that the controller can follow the progress of the regeneration. An exact
synchronization of the controller display and the valve settings cannot be
guaranteed.
The following diagram shows the triggering voltage on terminals 5-6 and 5-7 (12-13
and 12-14) in a four-stage valve. The fourth stage, “Service“ or “Standby“, which
follows on at the end of regeneration, is not shown.
The number of stages is determined at program step 2.1, the length of the
triggering pulse at program step 3.1 and the length of the individual regeneration
phases at program step 4.1.
NOTE: The length of the first regeneration phases is increased by the length of the
triggering pulse.
Valve 9000
The valve 9000 is a remote control valve used to regenerate the two sides of a
double filter system alternately. In its electric triggering, voltage changes between
terminals 5-6 and 5-7 immediately the next phase is triggered. The fourth switching
phase is triggered by applying voltage to terminals 5-8.
The following diagram shows the triggering voltage on terminals 5-6 and 5-7 (12-13
and 12-14) in a four-stage valve. The fourth stage, “Service“ or “Standby“, which
follows on at the end of regeneration, is not shown.
The number of stages is automatically set at five stages when this valve is
selected. The length of the individual regeneration phases at program step 4.1.
NOTE: There are some restrictions with this valve for technical reasons:
- If “Filter change over without program initiation“ is selected, only the display
changes.
- The functions “Regeneration of standby filter”, “Regeneration of Filter 1 Only” and
“Regeneration of Filter 2 Only” are not available.
- Program step 5 cannot be selected (always double filter system).
Step no.: 1.3
External Y/N
Step no.: 1.4
Valve9000 Y/N
Yes No
1.3
2.1
Yes No
1.4
1.5
2.1
1.2
Phase1 Phase2 Phase3
Electrical signal
Stages
Adjustable pulse length
Regeneration start Regeneration end
Phase2 Phase3
2
min
Regeneration end Regeneration start
Phase4
Control voltage to terminals 5-8
Electrical signal
Stages
Phase1