32Service Manual – SC900 24 - Electrical System
Maintenance and Adjustment
Setting Onboard Charger Battery Prole
The machine may be equipped with the optional onboard battery charger. If the charger is just being
installed, or the batteries have been replaced with a different type, it will be necessary to program the
charger to properly charge the batteries according to their type.
Batteries operate on chemical reactions that produce an electrical charge. Charging a battery reverses these
chemical reactions so they can produce power again. Because these chemical reactions are complex, their
reversal is also complex, at least from the standpoint of maintaining good health of the battery. This process
is referred to as a charging algorithm. During the charging algorithm, various stages of the charging process
are handled differently, depending on the chemical makeup of the battery.
Battery charging occurs in various phases, such as an initial charge, to a bulk charge, to an equalization or
gassing phase. During each of these phases, the method and rate of charge is varied to optimize the reverse
chemical reaction. Some may be constant-current, some constant-voltage, and some may be other methods.
The Delta-Q charger is an intelligent charger that incorporates these various charging algorithms for
multiple battery types.
Charging Proles
The Delta-Q charger contains many charging proles,
which are identied by number. The table to the right
lists those proles that are applicable to SC900 battery
system options.
The Delta-Q instruction manual explains how to set
these proles. There are two options for programming
this information into the charger.
One option uses a laptop, QuiQ software, and a special USB interface connector kit. This method is the
easiest, but it does require obtaining the QuiQ Program Kit (Pn 56315732). The QuiQ Program kit will
contain instructions for use.
The second option, although more complex, doesn’t require any special tools. It communicates to the charger
by disconnecting the battery terminal and “tapping” the terminal back to the battery to signify which
numerical algorithm code to use. These instructions are included with the charger.
Fault Indicator (Red Light)
Charger error.
If solid: AC power is present.
If ashing: Low AC voltage. Check electrical source and cord length.
AC Indicator
Bulk Charge Indicator
If solid: Bulk charge phase complete (80% charged); in absorption phase.
If ashing: Displays charge prole number if no battery is connected.
Displays charge proles 7 and above.
Charge Completion Indicator (Green Light)
If solid: Charging complete and maintenance mode is active.
If ashing: Absorption phase complete, in nishing phase.
If solid: Displays
scale of output
during bulk phase.
If ashing: Output
has been reduced
due to high internal
charger temperature.
Displays charge
proles 1-6 for 11
seconds if no battery
is connected.
Ammeter
Nilsk
Part No.
Model Charge
Prole
Voltage
56206079 WET 6V 242AH
11 6
56391391 WET 6V 310AH
72 6
56112545 AGM 6V 255AH
43 6
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