ES 2050/51
Alarms / warnings
9
Alarms / warnings.
When the equipment is operating, various messages may appear in the display, this facility can be used
to drive relay outputs or to give alarms or warnings. The relay positions are indicated by red control
lamps bearing symbols for "Attention" for messages and "Stop" for alarms. The programming of these
functions is described in sections 5, 10,15 and 18 of the programming instructions.
Descriptive text appears in the LCD display, in addition to the fault or warning light indication.
Programmed capacity exceeded.
This message can only be displayed when controlling a duplex plant and appears if the working unit
requires regeneration whilst the off line unit is in regeneration.
Possible causes when the plant is water meter controlled:
Wrongly programmed capacity.
Wrongly programmed incoming hardness.
The water meter is faulty or of the incorrect type.
Excessive demand for water e.g.. a large tank being filled very rapidly.
Possible causes when regeneration is remotely initiated by water analysis equipment signal:
Faulty analytical equipment.
Incorrect operation of analysis unit.
Water analysis equipment too sensitive or giving spurious readings.
Inadequate regeneration of the unit leading to shortfall in capacity.
IMPORTANT! In this condition if regeneration initiation is volume dependent, i.e.. by water meter, the
on-line unit will begin to regenerate as soon as the other unit has finished it's regeneration.
If a salt saturator is being used and there is insufficient brine available for the second regeneration the
second regeneration cycle must be prevented either by switching off the control or by giving a "wait"
input. Once sufficient brine is available the second unit can be allowed to regenerate.
Press the "UNLOCK" key indicated by the symbol
, in order to reset the warning or alarm relay. If the
key is pressed a second time, the LCD display will also be reset, providing that the initiation signal is
also no longer present. Then the regeneration of the second unit will not take place.
Installation
exceeded