Cf: Carrier Frequency; Ac: Acceleration; Ay: Anti Cycling; Ae: Enabling The Anti-Blocking Function - DAB ACTIVE DRIVER PLUS M/T 1.0 Instrucciones De Instalación Y Mantenimiento

6.6.10 CF: Carrier frequency

This sets the carrier frequency of the inverter modulation. The value set as default, is the correct value in most cases,
and therefore modifications are not recommended unless fully aware of the changes made.

6.6.11 AC: Acceleration

This sets the speed of variation with which the inverter varies frequency. This acts both on the start-up phase and
during control. The pre-set value is generally optimum. If there are problems in starting or HP errors, the value of AC
can be reduced. Each time this parameter is modified, it is advisable to check that system control is still efficient. In
the event of problems of oscillation, lower the GI and GP gain values; see paragraphs 6.6.5 and 6.6.4. A reduction to
AC will slow down the inverter.

6.6.12 AY: Anti cycling

This function avoids frequent switching on and off in the case of leaks in the system. The function can be enabled in 2
different modes: normal and smart.
In normal mode the electronic control blocks the motor after N identical start/stop cycles. In smart mode it acts on the
parameter RP to reduce the negative effects due to leaks. If set on "Disable", the function does not intervene.

6.6.13 AE: Enabling the anti-blocking function

This function serves to avoid mechanical blockages in the event of prolonged disuses; it acts by periodically activating
the pump in rotation.
When this function is enabled, every 23 hours the pump complete an unblocking cycle lasting 1 minute.
WARNING: Only for type M/M inverters: since to ensure starting of a single-phase pump a starting frequency close to
the rated value is necessary for a certain time (see par. 6.6.17 and 6.6.18), whenever the anti-blocking function is
activated with utilities closed there may be an increase in pressure in the system.
Valid only in case of inverter type M/M. Please check your pump can face the system prevalence.
Otherwise it is advisable to deactivate the anti-blocking function.

6.6.14 AF: Anti freeze

If this function is enabled the pump is automatically rotated when the temperature reaches values close to freezing
point, in order to avoid breakages of the pump.
WARNING: Valid only in case of inverter type M/M. There could be some pressure increasing in the system, thus the
starting frequency must be close to the rated one for a while, in a single-phase pump, to enable its turn on (see
sections 6.6.17 and 6.6.18) each time that comes on the antifreeze to utilities closed conditions can increase the
pressure in the system.
Valido solo in caso di inverter di tipo M/M. Please check your pump can face the system
prevalence. If not, its better not to enable the anti-frost function.

6.6.15 Setup of auxiliary digital inputs IN1, IN2, IN3, IN4

This section shows the functions and possible configurations of the inputs by means of parameters I1, I2, I3. Inputs I2
and I3 are available only on type M/T and T/T inverters.
For electrical connections, see section 2.3.3.
The inputs are all the same and all functions can be associated with each. The parameter IN1..IN 3 enables the user
to associate the required function with the input of the same name.
Each function associated with the inputs is explained in more detail further in this section. Table 23 summarises the
functions and various configurations.
The default settings are those in Table 22.
ENGLISH
Default settings of inputs
IN1, IN2, IN3
Input
1 1 (float NO)
2 3 (P aux NO)
3 5 (enable NO)

Table 22: Default settings of inputs

86
Value