MicroPower MTM - Main Circuit; Basic Setting; General; Procedure

19 (30)
Document no.
99-99-111
Version
6
Date
2003-10-16
Sign.
ToNo
4.4 Main circuit
Incoming power is connected to terminals L1, L2 and L3. The voltage is fed through the
main contactor K1 and chokes L1 – L3 to the primary side of transformers T1 – T3.
Contactor K2 activates immediately before K1 and feeds the voltage through resistors
R1 – R3 to the transformers which are magnetized. This switching limits the connection
impulse.
The secondary side of the transformer is connected to a rectifier with diodes and
thyristors. The component type depends on the charger’s rated current.
The rectifier bridge is connected to the charger’s plus output through a knife or truck
fuse and to the minus output through a shunt.
4.5 Basic setting
4.5.1 General
If a new computer card is fitted to the charger, this is normally unprogrammed. The
“default program” function can be used to keep to a minimum the number of values
which have to be input. Here are some step-by-step instructions on how to do this.
Firstly, read through section 3.5 and 3.6.
4.5.2 Procedure
 Remove any protective paper from the real-time clock battery.
 Install the card in the unit.
 Start the charger without connecting the battery.
 When the first screen is displayed, enter the security code 2451 (digits entered will
not be displayed). A signal is emitted by way of acknowledgement.
 Press * until you see “service”. Press # until you see “default program”. Enter 2451.
 The display shows “set charging algorithm”. Select a charge curve suitable for the
battery (e.g. 10-05) followed by #. A charge curve should be selected in consultation
with the supplier of the battery or charger.
 The display shows “set time”. Set the time, date, day of week and year, each followed
by #.
 Press # until you see “clear all statistics”. Press “2451”. The menu system returns to
“set time”.
 Press # until you see “clear all IDB data”. Press “2451”. The menu system returns to
“Service”.
 Press # until you see “Hardware code”. Programme values in accordance with the
table in section 5.1.2.
 Press * until you see “Charging algorithm”.
 The display shows information on the active curve. Press # and program the correct
value for battery capacity and the number of cells. Other parameters should only be
changed in consultation with the supplier of the battery or charger. Finish by pressing
# followed by *.