PEDROLLO E1 MONO, Original Instructions For Use

Page: 44 / 164

44 | ENGLISH
MODE 1 – EMPTYING AND PRESSURISING (default mode)
IN1 IN2
G1
G2
P1 P2
G2/P2
G1/P1
Factory configuration
Parameter
to be configured
Value
IN1 ON
IN2 ON
LOGIC ALTERN.
DRY LOGIC COS
COSFI REC ON
COSFI REC 2 min
MAX REC T 60 min
Float
Pressure switch
Water detection via cosφ (dry running)
If
IN1
is closed with a NO voltage-free contact, either one pump or the other (if there are two) starts running according to
the alternating logic. The control panel then checks the cosφ.
If the following control logic has been selected:
– DRY LOGIC=COS (default) and
cosφ (read)> cosφ (set min)
or
– DRY LOGIC=CURR and
CURR (read current)> CURR MIN (set minimum current)
it means that the pump is operating with water in the system, so the control panel lets it run, otherwise it is stopped due
to dry running.
If
IN2
is also closed with a NO voltage-free contact, the other pump starts running (if there are two). The control panel then
checks the cosφ for the second pump, using the same logic as for the first one.
If, instead,
IN1 is not used, when IN2 is closed with a NO voltage-free contact, either one pump or the other (if there are two)
starts running according to the alternating logic, and the pump that was off starts running few seconds later. When both
pumps are on, the control panel checks the cosφ using the same logic as explained above.
If inputs
IN1
and
IN2
are enabled at any time by opening a NO voltage-free contact, one or both pumps (if there are two)
are switched off.
Pressing the
ESC button shows the input states ( IN1 - IN2 ) on the alphanumeric part of the display .