DAB PUMPS PWM 201, Instruction For Installation And Maintenance

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6.6.13.1 Disabling functions associated with input
If an input is configured at 0, each function associated with this input will be disabled, regardless of the signal on the terminals of the
input itself.
6.6.13.2 Setting the external float function
The external float can be connected to any input, for all electrical connections, refer to paragraph 2.2.4.2. The float function is
implemented by setting the parameter INx associated with the input where the float is connected, with one of the values of Table 23.
Activation of the external float function generates a system block. The function is envisaged to connect the input to a signal from a
float that indicates a water supply failure.
When this function is enabled, the symbol F1 is shown on the STATUS line of the main page.
The input must be activated for at least one second for the system to block and indicate the error F1.
When in the F1 error condition, the input must be deactivated for at least 30 seconds before the system unblocks. The function
behaviour is summarised in Table 23.
When several float functions are configured at the same time on different inputs, the system indicates F1 when at least one function
is activated and clears the alarm when none are activated.
Response of external float function according to setting of INx and input
Parameter
value
INx
Input
configuration
Input status Operation Display
1 Active with high signal
on input (NO)
Absent Normal None
Present
System block due to lack of
water from external float
F1
2 Active with low signal
on input (NO)
Absent
System block due to lack of
water from external float
F1
Present Normal None
Table 23: External float function
6.6.13.3 Setting the auxiliary pressure input function
The auxiliary set points are disabled if the flow sensor is not used (FI=0) and when FZ is used in minimum frequency
mode (FZ ≠ 0).
The signal that enables an auxiliary set point can be supplied on any one of the 4 inputs, (for electrical connections, refer to
paragraph 2.2.4.2). The auxiliary set point function is obtained by setting parameter INx, associated with the input on which the
connection is made, in accordance with Table 24. The auxiliary pressure function modifies the system setpoint from pressure SP
(see section 6.3) to pressure Pi . For electrical connections, see paragraph 2.2.4.2) where i represents the input used. In this way,
as well as SP there are four additional pressures available: P1, P2, P3, and P4.
When this function is enabled, the symbol Pi is shown on the STATUS line of the main page.
The input must be active for at least 1 second for the system to operate with the auxiliary setpoint. When operating with the auxiliary
setpoint, the input must not be active for at least 1 second to return to operation with setpoint SP. The function behaviour is
summarised in Table 24. If several auxiliary pressure values are configured at the same time on different inputs, the system indicates
Pi when at least one function is activated. For simultaneous activations, the pressure reached will be the lowest from those with the
input active. The alarm is cleared when no input is activated.
Response of auxiliary pressure function according to setting of INx and input
Parameter
value
INx
Input
configuration
Input status Operation Display
3
Active with high signal
on input (NO)
Absent
Auxiliary set point of same
name not active
None
Present
Auxiliary set point of same
name active
Px
4
Active with low signal
on input (NO)
Absent
Auxiliary set point of same
name active
Px
Present
Auxiliary set point of same
name not active
None
Table 24: Auxiliary setpoints