ES 2050/51
Remote control
15
When "REGENERATION INITIATION" indicated by the symbol
, is pressed, the "WAIT" signal will
be suspended for the duration of the regeneration cycle.
When using the fast program key facility, (see special functions page 16) it is possible to step
forward to the next regeneration step.
IMPORTANT
If "EURO" is selected at step 12.4 of the programming sequence the outlet (pilot) solenoid
valves will be closed in the service condition.
IMPORTANT
Any additional programme (see page 31) will be disabled.
Or: Active during service.
The service valves will open or close in response to the input.
APPLICATION: Treated water storage tank level control.
"start" Signal input.
This input signal can be used to initiate a regeneration of the plant by remote means, e.g. a push button,
or water monitoring equipment. When operating a duplex plant in standby mode the standby unit will be
brought on line. A start-up delay can be set at program step 18.2
If remote initiation is attempted during a period in which the controller has been programmed to prohibit
regeneration (section 3.1 of the programming instructions) the time at which regeneration will be initiated
will appear with the current time in the LCD display. In a duplex plant, operating in standby mode, the
stand by unit is brought into service. Regeneration is not initiated.
If a minimum interval between regeneration’s has been programmed (section 5 of the programming
instructions) if an attempt is made to initiate a regeneration during this interval the "minimum
regeneration time" warning will be displayed. Regeneration will not be initiated, manual initiation will be
required and the alarm must be manually reset. (see page 12.)
On a simplex plant the input is disabled during regeneration and only becomes available again once the
regeneration is complete and the time entered at program step 18.1 has elapsed.
In double filter systems the input is blocked after the start of regeneration for the time
entered at program step 18.1. Then if a start signal is present the report "system overloaded"
is shown, since evidently both filters are exhausted.
NOTE
The time entered at program step 18.1 is also activated after a power loss to allow for
a measuring device to take a new measurement.
NOTE
If the controller was programmed for de carbonisation (see text of program step 7),
the blockage times referred to above do not apply. Instead the time from program step 18.1
is activated as a start-up delay for the first sampling in accordance with the time from
program step 18.2. It is assumed that there is a measurement device which shows water
quality directly (pH measurement).
“duty changeover without regeneration” Signal input.
If both the "Regeneration Chemicals" and the "Wait" input are activated (36-37 open and 38-39 closed)
within a period of 1 second the plant will perform the "Duty changeover without regeneration" function.
Once the plant has changed over the contact between 36 and 37 must be restored.
IMPORTANT If this facility is used Step 16.8 and 16.12 of the program must
be set to "N".