UMAX090690. Version: 1.2 Preliminary Documentation
– May Be Subject To Change
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Miscellaneous Input setpoint “Shutdown Temperature”. If no RTD is connected,
ensure the
RTD
Enable
setpoint is set to ‘Disabled’.
2.2.
Battery Charger State Diagram
A complete set of the charger modes and their relations to each other are shown on the Battery
Charger State Diagram (Figure 3).
Figure 3
. Battery Charger State Diagram
In order to avoid accidental switching of the charger from one mode to another due to noise,
transients, etc., the condition causing the transition must stay on for at least 3 seconds.
2.3.
Battery Protection
To prevent a battery from damage, the battery charger has a time-out condition of 48 hours. The
charger will return to Idle state if the charge time exceeds this value.
By default, the battery charger will not start charging a battery with a voltage less than the
Precharge Mode Start Voltage. However, some batteries may contain a safety feature which
disconnects the output when not charging. In this case, the battery may hold a charge, but the
battery charger will read no voltage from the battery terminals. For this reason, the battery charger
