Instruction manual V 2.3
34
PWM 230 - PWM 400 - PWM 400/7.5
Instruction manual
i2 = 02: 2 set point system (NC)
IN2: 0 (not energized input)
active set point is P1. In normal display mode “Go” or
“Sb” is displayed; the read-only GS parameter values
“P1” (provided that no anti-freeze/anti-block procedure is
being performed)
IN2: 1 (energized input)
active set point is SP. In normal display mode “Go” or
“Sb” is displayed; the read-only GS parameter value is
“SP” (provided that no anti-freeze/anti-block procedure is
being performed)
Note: In order make the system work with P1 as its active set-point, the input must be at 0 (not
energized) for at least 1 sec. Conversely, if the active set-point is P1, the input must be at 1
(energized) for at least 1 sec, before SP returns to be the active set-point.
5.1.3.9.3 I3: Setting function of input 3 (general system enabling)
i3 = 00: Input disabled.
Irrespective of the input status, the system remains enabled and the possible pressures are
only SP and P1 (see: i2). “F3” never appears on the display.
i3 = 01: General enable
(NO)
IN3: 0 (not energized input)
System enabled, “GO” or “Sb” is displayed.
IN3: 1 (energized input)
System enabled, “F3” is displayed.
i3 = 02: General enable
(NC)
IN3: 0 (not energized input)
System disabled, “F3” is displayed.
IN3: 1 (energized input)
System disabled, “GO” or “Sb” is displayed.
i3 = 03: General enable
(NO)
This case is identical to that with i3 = 1 except that each time the system switches from
disabled to enabled state all recoverable blocks are cancelled.
i3 = 04: General enable
(NC)
This case is identical to that with i3 = 2 except that each time the system switches from
disabled to enabled state all recoverable blocks are cancelled.
i3 = 05: Block Reset
In this case each time the input IN3 goes from state 0 (not energized) to state 1 (energized)
all recoverable blocks are cancelled
Table summarising the configuration of the digital inputs IN1, IN2, IN3
Value
Parameter
i1
i2
i3
00
Input is ignored,
“F1” never appears
Input is ignored. SP is the
only set-point
Input is ignored,
“F3” never appears
01
Water lack from external float
connected to IN1 (NO)
Set-point: SP or P1,
depending on IN2 (NO)
IN3 acts as general enable
signal (NO)
02
Water lack from external float
connected to IN1 (NC)
Set-point: SP or P1
depending on IN2 (NC)
IN3 acts as general enable
signal (NC)
03
IN3 acts as general enable
signal (NO) + recoverable
blocks are cancelled
04
IN3 acts as general enable
signal (NC) + recoverable
blocks are cancelled
05
Recoverable
blocks
are
cancelled
Table 10: inputs configuration
