Table 26: Low Pressure Signal Detection (Kiwa); Table 27: Default Output Settings - DWT WaCS PWM Serie Instrucciones De Instalación Y Mantenimiento

6.6.13.5 Setting low pressure detection (KIWA)
The minimum pressure switch that detects low pressure can be connected to any input (for electrical
connections, refer to paragraph 2.2.4.2) The low pressure detection function is obtained by setting the
parameter INx, associated with the input where the enable signal is connected, to one of the values in Table
26.
Activation of the low pressure detection function generate a system block after time T1 (see T1: Tempo di
spegnimento dopo il segnale bassa pressione par. 6.6.2). This function is envisaged to connect the input to
a signal from a pressure switch that indicates excessively low pressure on pump intake.
When this function is enabled, the symbol F4 is shown on the STATUS line of the main page.
When in the F4 error condition, the input must be deactivated for at least 2 seconds before the system
unblocks. The function behaviour is summarised in Table 26.
When several low pressure detection functions are configured at the same time on different inputs, the
system indicates F4 when at least one function is activated and clears the alarm when none are activated.
Response of system enable and fault reset function according to setting of INx and input
Parameter
value
configuration
INx
Active with high
signal on input
10
Active with low
11 signal on input
Active with high
signal on input
12
Active with low
13 signal on input
6.6.14 Setup of outputs OUT1, OUT2
This section illustrates the functions and possible configurations of the outputs OUT1 and OUT2 via
parameters O1 and O2.
For electrical connections, see section 2.2.4.
The default settings are those in Table 27.
Input
Input status
Absent
Present
(NO)
Absent
(NO)
Present
Absent
(NO) Present
Absent
(NO)
Present

Table 26: Low pressure signal detection (KIWA)

Default output settings
Output
OUT 1
OUT 2

Table 27: Default output settings

ENGLISH
Operation
Normal
System block due to low
pressure on intake;
automatic + manual reset
System block due to low
pressure on intake;
automatic + manual reset
Normal
Normal
System block due to low
pressure on intake.
Manual reset
System block due to low
pressure on intake.
Manual reset
Normal
Value
2 (fault NO closes)
2 (Pump running NO closes)
123
Display
None
F4
F4
None
None
F4
F4
None