Error Messages And Warnings - GRAUPNER ULTRA TRIO PLUS 16 Operating Manual

The ULTRAMAT 16 incorporates a wide range of protective and monitoring systems designed to
check the charger's functions and monitor the state of its electronics. If any of the unit's limit values
are exceeded, the charger responds accordingly: in some cases the unit's settings are automatically
reduced (e.g. charge current / discharge current); in others the charge process is switched off (e.g. car
battery almost fl at).
The liquid crystal screen displays the cause of the error. Most error messages are self-explanatory, but
you may fi nd the following list useful when fault-fi nding. The warning message and the audible warning
signal can be switched off by pressing the „ENTER" button.
* * * * E R R O R * * * * [ 1 ]
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
c a r b a t t .
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
* * * * E R R O R * * * * [ 1 ]
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
w r o n g p o l a r i t y
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
* * * * E R R O R * * * * [ 1 ]
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
c o n t a c t b r e a k
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
* * * * E R R O R * * * * [ 1 ]
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
t i m e l i m i t
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
* * * * E R R O R * * * * [ 1 ]
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
b a t . v o l t t o o
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
* * * * E R R O R * * * * [ 1 ]
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
b a t . v o l t t o o
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
48

17. Error messages and warnings

This warning message is displayed if the voltage of the car
battery falls below the value set in the „Low voltage cut-off"
e m p t y
section of the user settings (11.0 V).
This warning message is displayed if a battery is connected to
the unit's charge outputs with incorrect polarity.
If the charger detects an interruption of the connection between
battery and charger during a charge process, the screen dis-
plays this error message. If you see this error message when
the charger is in use, it may indicate an intermittent contact.
Note: the same error message also appears if you deliberately
interrupt the charge process, e.g. by discon-necting the charge
lead.
If the internal charge safety timer has elapsed, the current
process is terminated for safety's sake. The safety timer is
set permanently to 180 minutes for Ni-Cd / Ni-MH batt-eries.
o v e r
For Lithium batteries the set period is 180 minutes. The timer
is disabled when a lead-acid battery is being charged. These
settings are fi xed, and cannot be altered. Possible causes:
charge current too low: battery cannot be fully charged; charge
leads too thin and / or too long - charge current cannot rise high
enough: battery capacity too high.
If the charger detects an excessive voltage, e.g. incorrect setting
of the cell count with a Lithium or lead-acid battery, this error
message is displayed.
The same error message may also appear if the cells connected
h i .
to the charger are overcharged.
If the charger detects too low a voltage, e.g. incorrect setting
of the cell count with a Lithium or lead-acid battery, this error
message is displayed.
The purpose of this error message is to avoid the cells becoming
l o w
deep-discharged due to an incorrect setting.