Schaefer Series C/B 1300 - Manual (Page 8)

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Options & Accessories Options & Accessories
TC 01 Control function
analogue or micro-processor-controlled supervision:
■ input voltage
■ output voltage
■ battery circuit
■ ground insulation failure
■ over temperature
UC 03 Inhanced controller function
The „UC 03“ unit controls and supervises the optimum charging
of a battery, up to an entire UPS system. A battery charging in a
basic way, with a switch mode AC / DC or DC / DC Charger, is
shown in the following figure.
The charger output voltage is regulated inside the charger accor-
ding to the input “Vref” signal. The gain factor between Vref and
Vo/p is defined in the Specification of the Charger. The charger
current limitation is also a function of the charger. The reference
values, limitations and monitoring levels for charging a battery
(ies) are configurable in the UC 03. The charging of the battery
occurs according to the current / voltage characteristics, i.e. the
battery is loaded in current limitation, until the appropriate vol-
tage is reached. The following working conditions are processed
by the UC 03:
a.
Float Charge conforms to the recommended permanent voltage
to hold the battery within a completely charged state.
b.
Equalize or Automatic Boost Charge: To charge the battery after a
partial or deep discharge as quickly as possible, an increased vol-
tage is provided. This mode is activated automatically via different
functions, or manually via the front panel button.
c.
Manual Boost Charge: independently adjustable voltage, to rege-
nerate an aged battery. In all three working conditions the maxi-
mum battery charge current is limited.
Control & Monitoring
for Switch Mode & Thyristor-Controlled Systems
Mains Power
UC 03-xx Charger
V ref
0...10V
Battery current
Battery voltage
Battery
V o/p
=