ES 2050/51
Setting and changing of initial values
30
Electrical
control,
Pulse
timing
Remote Control.
With the remote control facility, the central control valve only requires a starting
pulse on the connections 5-7 to perform the complete regeneration cycle. The
times for the different regeneration steps are, generally speaking, catered for by
the switching arrangements of
the central control valve. The
same times must also be entered
in at step 14 of the programming
in order for the control to follow the regeneration cycle. An exact
synchronisation of the central control valve and the indication on the display is
however not possible
EURO Control
The EURO valve is controlled by
two electric valves. These are
utilised to changeover the
columns during regeneration
initiation. The terminals are
numbered 5,7 and 3,8. 12,4 and 3,15 respectively for the duplex column.
With duplex installations in exchange mode (Program step 1.2 = YES) it is
possible to flush the standby
stream before entering service.
This is achieved by opening a
valve, connected across 3,8 and
3,15. The length of the flush can
be programmed between 1 and 99 minutes. Should the step be programmed at
value 0 (Zero) then no flush will occur.
13. Pulse timing.
If the pulse control in remote control mode is selected, the pulse time for each
period must also be entered. Values in the range of 1 to 999 seconds can be
programmed.
IMPORTANT. When using pulse
control the pulse duration must
not be longer than the shortest
time step (see section 14,
regeneration times).
IMPORTANT. Select the pulse to be programmed using the "#" key. Then use "
" key to select the digit to be changed and use the "#" to change the value.
Step nr: 12.3
External Y/N
Example 5 stage valve with external signal
Step nr: 12.4
EURO Y/N
Step nr: 12.5
Flush time 2m
Example 4 stage EURO valve
Step nr: 13.0
Pulse per.1 50s