DWT WaCS PWM Serie Instrucciones De Instalación Y Mantenimiento página 92

With reference to the example in Figure 11 and using the factory settings of the inputs (I1 = 1; I2 = 3; I3 = 5;
I4=10) the following is obtained:

When the switch is closed on I1 the pump blocks and error code "F1" is displayed
(e.g. I1 connected to a float; see para. 6.6.13.2 External float function settings).

When the switch is closed on I2 the control pressure becomes "P2"
(see para. 6.6.13.3 Auxiliary pressure input function settings).

When the switch is closed on I3 the pump blocks and error code "F3" is displayed
(see para. 6.6.13.4 Settings for system enable and fault reset).

When the switch is closed on I4 after time T1 the pump blocks and error code F4 is displayed.(see
para. 6.6.13.5 Setting low pressure detection).
The example in Figure 11, refers to a connection with voltage-free contact, using the internal voltage to
control the inputs (obviously using only useful inputs).
If a voltage rather than a contact is available, this can still be used to control the inputs: in this case terminals
+V and GND are not used and the voltage source (complying with the specifications of Table 7) is connected
to the required input. If an external voltage is used to control the inputs, all the circuitry must be protected by
.
double insulation
CAUTION: the pairs of inputs I1/I2 and I3/I4 have a pole in common for each pair.
ENGLISH
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