10
TOBI® PI OPERATION
The control has the ability to communicate with a Tobi® PI battery module. For communication to occur, it
must be enabled in the control. This is accomplished by setting the ‘BC’ parameter.
Setting the BC parameter to 0 disables communication.
Setting the BC parameter to 1 enables normal communication. While the battery is connected to the
charger, information is transferred between the charger and the Tobi® PI on the battery including the battery
temperature. For the charger to utilize the temperature, the temperature sensor must also be enabled.
Temperature compensation is enabled by setting the OK to charge temperature (OT) to a non-zero value.
This value indicates the maximum temperature that allows the charge to start. If the battery is above this
temperature when it is connected, the control displays the temperature and waits for the battery to cool
down before starting the charge.
If the thermal sensor is enabled and is missing or damaged, the control displays an F11 indication when the
battery is connected.
The ‘Low charge temp’ (LT) parameter indicates the temperature at which the charge current is reduced to
limit the temperature rise of the battery. The current is reduced proportional to the amount the battery
temperature exceeds the limit.
The ‘No charge temp’ (NT) parameter indicates the temperature at which the charge is terminated. If this
temperature is reached during charge, the charger shuts down and displays an F2 indication.
Refer to the battery manufacturers recommendations before setting these parameters.
If the thermal sensor is enabled, the battery voltage milestones on charge (trip point, cutoff, etc.) are
compensated by 2.5mV/C per degree F (1.5mV/C per degree F for NiCad) above or below 77 degrees F. If
the temperature is below 77 degrees, the voltage is adjusted up and if the temperature is above 77 degrees,
the voltage is adjusted down.
Setting the BC parameter to 2 enables normal communication as well as algorithm upload. In addition to
the information transferred during normal mode, the charger also uploads and utilizes a charge algorithm
from the Tobi® PI on the battery. This can be useful if multiple battery types or AH sizes are used on the
same charger. Refer to the Tobi® PI manual for instructions on setting the charge algorithm. Note: If the
communication between the charger and Tobi® PI fails, the charger utilizes its own algorithm settings to
charge the battery.
Summary of Contents for HIGH FREQUENCY Series
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