MA-5191A
21-10-2021
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-If the battery is connected to the equipment, it will be connected to output 1 as fast
as possible (via the solid state relay), to assist the rectifier in the starting process.
The rectifier goes into overload when it remains in current and/or power limiting for an
excessive time without output 1 being able to reach a sufficient voltage value. If this situation
occurs, the equipment is overloaded:
-
Disconnect the battery and cut the output voltage, stopping the rectifier (output 2
and output 3 remain stopped).
-
Wait a sufficient time before a start-up attempt is made. This allows the charge to
be de-energised and a start from 0V of output 1 can occur.
-
The equipment is restarted, performing a new Power-up sequence.
-
If the overload situation persists, the equipment performs a limited number of
retries. Once this number of retries has been reached, the equipment definitively
stops the output, keeping its machine statuses, digital signals, light signals and
Ethernet communications functions enabled.
To restart the equipment after an overload situation (where the retry limit has been reached),
it is necessary to:
-
Disconnect the equipment completely (AC input and batteries) and wait for the
equipment to stop completely. Then reapply the input voltage.
-
Reset it from the web page.
13.1.1.3
VARIATION OF FLOAT VOLTAGE WITH TEMPERATURE:
The EDT-150-5191 charger varies the output voltage according to battery temperature to
maximise battery life.
This procedure ensures that:
-
The battery float voltage varies according to the temperature measured by the
battery temperature sensor.
-
The battery float voltage does not vary due to the internal temperature of the
equipment, but only due to the battery sensor temperature.
-
The battery float voltage varies according to the formula:
V
BAT
=V_flot-(T
BAT
-25)*(Comp_flot/1000) [V] figure XX
Where:
V
BAT
:
is the desired float voltage for the temperature of T
BAT
batteries
[V]
V_flot:
is the float voltage indicated by the manufacturer for
25ºC [V]
T
BAT
:
is the temperature of the batteries [ºC]
Comp_flot: is the float voltage setting as a function of battery temperature
[mV/ºC]
-
The sensor used has an accuracy of 1ºC over the entire operating temperature
range.
-
The error introduced by the sensor plus the charger in the float voltage is less than
that generated by an error in the temperature measurement of 3ºC.