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Installation Manual LOGS50 EN_MI_090221
1.1.4 EXTERNAL POWER SUPPLY
Apart from the internal power supply, the logger also accepts powering from
both a suitable commercial external power supply and or / an external battery kit
available on catalogue.
Note
: Always respect the terminal polarities shown in each type of electrical power supply available to feed
the equipment.
1.1.5 LOCAL INPUTS & OUTPUTS
Local digital inputs:
There are up to 8 digital inputs with two possible
group configurations. There is a common terminal to all inputs used for
reference, GND.
Local analog inputs:
There are up to 4 analog inputs divided in two
groups. By default, they work as 4-20 milliamp current loop. They can also
be configured in voltage mode (0-10 V). Each group of analog inputs has a
common terminal called GND. The working mode selection is done via
microswitches. The software type of analog input must much the hardware
selection.
Local digital outputs:
There are 2 potential free outputs (dry contact)
associated to the contacts of two relays or 2 solenoid outputs (12 VDC & 2-
wire solenoids)
Each analog input has its microswitch.
Note
: Panel connectors DI1-AI1 and DI2-AI2 carry the electrical signals to and from the logger. Through
each connector circulate up to 4 digital signals and 2 analog signals and a 24-Volts power supply. The
GND signal of each connector is shared by both digital and analogical signals. i.e., both DI1-AI1 and DI2-
AI2 only have a GND wire shared by all the signals of the same group.
