How To Set The Parameters Listed In Table 8.2.5 In The Kl1Control Unit; Parameters To Be Read In The Inverter Gf1; Set Operation With Pressure Switches; Remote Alarms Connections - EBARA 2SP EFC 1,5T-1 Instrucciones Para La Instalación Y El Mantenimiento

8.3 HOW TO SET THE PARAMETERS LISTED IN TABLE 8.2.5 IN THE KL1CONTROL UNIT


REFERENCE P.: reference pressure to be kept constant in the system.

Const.KP: conventional value representing the capacity of reducing the error between the Reference P. and the
Instantaneous System P. during normal operation. Warning! If the set value is too high, it will cause oscillations. If
the set value is 0 no error correction is made, if the set value is 255 the error will be corrected instantaneously.

Const. KI.: conventional value representing the rapidity with which the error between the Reference P. and the
Instantaneous System P. is annulled. Warning! If the set value is too high it will cause oscillations. If the set value is 0
no error
the error will be corrected instantaneously.

P.Incr.Delay: time delay before start-up or stopping of the pumps after the first; value to be set at 0-:-20 seconds;the
recommended value is max 2 sec.

Danger P. : maximum pressure setting allowed in the system, above which the control unit immediately disconnects all the
pumps. The pressure setting must be 15% higher than the sum of Reference P. + Flow Res. Comp. Warning!
control unit will signal an overpressure error if the set value is incorrect.

Flow Res. Comp.: value to be set at 0-:-1 bar in order to increase the system pressure so as to compensate for
increased flow resistence.

When the programming has been completed, set the SA4 selector switch to SYSTEM-CONTROLLER mode, the
following parameters should appear on the display:
a. P00.0 : reference pressure,
b. p00.0 : instantaneous system pressure,
c.
NP0 : number of powered pumps,
d. f00.0 : speed % of the max speed of the pump powered by the inverter,
e. INV0: pump powered by the inverter

8.4 PARAMETERS TO BE READ IN THE INVERTER GF1

The inverter is provided with a control panel for programming and with a LED display.
All the motor operation, control and protection parameters are set by DAB.
As standard, the parameter indicated on the display is the frequency at which the motor is fed. Any alarms
signalled through the HL2 red indicator light and on the KL1 control unit alarm 16 can be read on the
inverter's display and be identified by referring to Chap. 9 point B.
WARNING: the inverter, faulty sensor, control unit malfunction alarms cause the automatic starting
of the system with the pressure switches.
The operation of reading the display to see what type of alarm has tripped must be carried out with the door open
(THIS OPERATION MUST BE CARRIED OUT ONLY BE EXPERT PERSONNEL).
ATTENTION: The reading of the reference number of the type of alarm that has tripped remains on the display for
only 10 seconds from the moment in which the insulating switch QS1 moves to position 0; after 10 seconds the
inverter automatically restarts the motor and the indication of the type of alarm is removed.
The inverter is programmed to restart automatically every 10 seconds three times, restoring the pre-alarm situation;
the fourth time it trips, the inverter blocks the power supply to the motor and indicates the type of alarm on the
display.
For any interventions or modifications, apply to the EBARA SERVICE.

8.5 SET OPERATION WITH PRESSURE SWITCHES

Electronic control unit KL1 fed only to display the pressure (selectors SA4 in PRESSURE SWITCH position, SA1,
SA2 and/or SA3 in Aut. position.
The control prepares set operation as follows:
Control and command (by the pressure switches) of the pumps P1,P2, P3 and/or P4 by means of the remote
-
control switches and/or star-delta starters by the supply mains;
- Indication and blocking of the pumps in the event of tripping.
 Indication and blocking of the pumps in the event of minimum pressure or lack of water.

8.6 REMOTE ALARMS CONNECTIONS

The control panel provides for the possibility of remotizing the alarms triggered as a result of inverter failure,
motor overload, water failure, overpressure.
Two additional terminals signal any motor maintenance requirements.
The optional software to be installed on the PC can be supplied on request, and the system can be controlled through
the RS 485 connection supplied as standard.
ENGLISH
correction is made,
28
if the set value is 255
The