EBARA Press-o-Matic Instrucciones Para El Uso página 32

INSTALLER P ARAME TERS:
These parameters can be found on hidden pages and usually they should only be changed in the
instal lat ion phase. To access these pages switch the device to Stand-by and keep the "+" and "-" buttons
pressed down together for 5 seconds. Once you have entered the hidden menu, use the "<<" and ">>"
buttons to scroll the pages and the "+ " and "-" buttons to change the parameters. To return to the main
page press the button in the centre.
checked by the installer.
consequent changes in the speed of the motor) it is ad visab le to set the lower PID values. On the other
hand, when the system's reaction to pressure variations is too s low we recommend increasing the PID
value (max. 50). The default value set by the manufacturer is 25. Use the "+" and "-" buttons to change
the values of the PID parameter.
recommended, for pumps submersed over 10 metres the parameter should be set at 70%. In any case, it is
useful to increase this parameter when the start-up of the motor pump is too slow and there is a significant
loss of pressure in the system during this phase. Use the "+" and "-" buttons to change the minimum
frequency values.
The intervention time of the protection in case of excessive absorption is inversely proportional to the
overload, therefore a slight overload shall trigger longer intervention times while a great o verload wi ll
lead to a rapid interruption. The par ameter can be set at a value between 0.5 a 9.7 A. When the device is
switched on if the Im ax parameter is set at 0.5 A (manufacturer's default setting), the page from which to
Language: The language used for the menus and the alarm mess ages can
be selected by the user. Use the + and – buttons to alter the parameter
setting.
Rotation di rection: The direction of rotation of the motor pump can be
inverted from this page without having to change the wiring of the electric
motor. To change the direction of rotation of the motor use the "+" and "-
" buttons; the direction shown by the arrow is merely indicative and does
not represent the actual direction of rotation which must in any case be
PID Control : This parameter is used to set the speed of reaction of the
system to changes in pressure (accelerations and decelerations). Low PID
values represent a slow but more accurate reaction (more gradual st art and
stop) while the higher values of this parameter can be used for a higher
reaction speed. When the system is unstable (pressure oscillations with
Minimum frequency: Use this parameter to set the minimum frequency of
the motor pump power supply (i.e. the number of rotations). The value is
expressed as percentage of the maximum frequency value. The parameter
can be set at the following values: 50, 60 or 70%. For surface pumps a 50%
minimum frequency is recommended as set by the manufacturer, for
pumps submersed up to a depth of 8-10 metres a 60% value is
Imax: this parameter is used to set the maximum current that must be
absorbed by the motor pump in ordinary conditions, so that the motor will
stop in case of excessive absorption. The motor sh all stop also if the
current measured during operation is lower than 0.5 A following the
interruption of the connection between the motor and the Press•o•Matic.
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