12
This screen is displayed in the following cases:
In case of 220Vac, users are warned that the quality of
the power is lower than the 10% oscillation allowed by
electricity companies.
In case of battery supply, the message warns that the
current voltage is lower than recommended for the good
performance of the controller.
In these cases, while the warning message is displayed,
the controller is paused. If the voltage level is recovered,
the screen message will disappear and the controller will
continue the operation that was paused.
This function is particularly interesting in those cases
where latch solenoids are used, since it prevents valves
from being open.
If there is a MODEM available, the controller will com-
municate this fact.
Power supply 220 Vac
Lower than 198 Vac
Power supply 12-9 Vdc
Lower than 8.2 Vdc
220 Vac power supply:
We supply 220 Vac to the controller at the terminals mar-
ked on the diagram.
Electrical
fuse220
Vac.
Output fuse 24 Vac.
220 V
ac.
220 V
ac.
Internal transformer
It is of great importance that the connection to earth of
the controller is properly connected so that the incorpora-
ted (varistors, static filter and fuse) act when necessary.
The 220Vac controllers have an internal transformer that
generates the output voltage (24Vac).
There are two 24Vac outputs that can be used for:
• Checking if the system works correctly by testing if
there is 24Vac voltage in the these terminal blocks.
• In exceptional cases, conditioned by the power con-
sumption of solenoids connected to the Filtmaster fil-
ter cleaning controller or by the number of solenoids
connected to the same output, it is possible to install
an external transformer to get required power.
The controller can also be used for extracting the phase to
install an external switch for automatic-stop-manual ope-
ration of any external device (only for 220Vac models).
Precautionary, if we need to take the 220Vac from a three
phase power source, we recommend taking it from a di-
fferent device other than the following problematic ones
current, we will extract the220 Vac phase from a diffe-
rent one that acts on often problematic devices such as:
• Cold storage rooms.
• Frequency converters.
• Fertilizer pumps.
• Control panel contactors.
Other
devices
Earth
Operation and maintenance manual
24 V
ac.
24 V
ac.
1,6 Amp
