Operating modes/charging mode (permanent settings)
2280073 Rev.1
Page 21
Operating modes/charging mode (permanent settings)
6.1 Setting of operating modes
Setting operating mode is only possible if the MC1500 is ready for use, i.e. if it has been
switched on via button 1 (On/Off). However, there shall no activated charging procedure and no
battery connected to the charger's output. After the charger unit has been switched on, the
current software version is displayed for ca. 2 seconds before the charger unit switches to the
set operating mode.
Pressing control button 3 (Enter) results in a prompt on the LCD to enter a password. The
password is made up of four numerical characters and is explained in more detail in section 10.
After correctly entering the password, you get to the MC1500
’s service menu. The navigation in
this menu is also done by using buttons 3, 4 and 5 (see section 10).
Setting of operating mode is done under the menu item "Set mode". Here, the following
described operating modes
„
Charging PB
“, „
Charging LIO
“, „
EPS 12V mode
“, „
EPS 24V mode
“
a
nd „
Auto. start EPS
“ can be selected.
The operating mode for the operation at 24V must be separately enabled under the menu item
"
Activate 24V mode
" to make it activatable and to facilitate the recognition of 24V batteries.
The MC1500 in its delivery condition is preset to the battery charging mode 12V Pb ("12V Pb
charge").
6.2 Charging mode for lead-acid batteries (Charging Pb)
This operating mode is for charging lead-acid batteries. The MC1500 is ready to use after it has
been switched on by pressing control button 1 (on/off). This means that the output voltage of the
charger unit remains 0V until a battery has been connected to the charger's output.
When connecting a battery, its voltage is measured first. From this, the nominal voltage of the
battery is determined (12V/24V). The charger unit selects the corresponding output voltage and
charges the battery.
If the voltage of the connected battery is not within the permissible range (see "
Overview of
applicable voltage ranges
" in section 6.7), the MC1500 does not switch on and the output
voltage remains at 0V, and the LCD displays an error message "
Faulty battery
".
If the battery is within an applicable voltage range, the MC1500 switches on the corresponding
output voltage and charges the battery. The LCD displays the message "
CHRG 12V on
" and,
after energization of output relays, the message "
12V Pb charge
".
After recognition of a 24V battery, it is charged with the corresponding IV characteristic (see
table in section 6.7), and the LCD displays the message "
Charge 24V on
".
Charging continues until the charging current falls below the limit of 2.5A. Then, the MC1500
remains in a secondary charging (post-charging) mode for an adjustable time (default setting
5min) after which it switches over to trickle charging.
The charger unit will switch on again if, during post-charging time or trickle charging, the current
increases and exceeds 2.5A. Hence, the charging cycle starts again.
If, during an adjustable time (default setting 12h), the charging current doesn't fall below 2.5A,
the MC1500 is switched over to trickle charging and status message "
Max. CHRG time
" is
shown on the display.
