DAB PUMPS PWM 201, Инструкция по установке и обслуживанию

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6.6.13.4 Setting the system enable and fault reset
The signal that enables the system can be supplied from any input (for electrical connections, refer to paragraph 2.2.4.2) The system
enable 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 24.
When this function is active, the system is totally disabled, and F3 is displayed n the STATUS line of the main page.
When several system disable functions are configured at the same time on different inputs, the system indicates F3 when at least
one function is activated and clears the alarm when none are activated.
The input must be active for at least 1 second for the system to implement the disable function.
When the system is disabled, the input must not be active for at least 1 second for the function to be deactivated (system re-enable).
The function behaviour is summarised in Table 25.
If several disable functions are configured at the same time on different inputs, the system indicates F3 when at least one function is
activated. The alarm is cleared when no input is activated.
Response of system enable and fault reset function according to setting of INx and input
Parameter
value
INx
Input
configuration
Input status Operation Display
5
Active with high signal
on input (NO)
Absent Inverter Enabled None
Present Inverter Disabled F3
6
Active with low signal
on input (NO)
Absent Inverter Disabled F3
Present Inverter Enabled None
7
Active with high signal
on input (NO)
Absent Inverter Enabled None
Present Inverter di block reset F3
8
Active with low signal
on input (NO)
Absent Inverter di block reset F3
Present Inverter Enabled
9
Active with high signal
on input (NO)
Absent Inverter Enabled None
Present Block reset None
Table 25: System enable and fault reset
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
INx
Input configuration Input status Operation Display
10
Active with high signal
on input (NO)
Absent Normal None
Present
System block due to low pressure
on intake; aut manual
reset
F4
11
Active with low signal on
input (NC)
Absent
System block due to low pressure
on intake; aut manual
reset
F4
Present Normal None
12 Active with high signal Absent Normal None