Unicont SPb CH-105 Technical Documentation Manual
                   | |
Unicont SPb Ltd Technical Documentation CH-105Page 116. ABC protectionABC has a number of electronic circuits and elements ensuring protection of the deviceand accumulator battery:1. Protection of ABC against excessive voltage in power supply network – ensured bymeans of electromechanical disconnection of ABC from power network. When protectionoperates, the alarm signalling is enabled (sound signal is enabled, light-emitting diode Failure ofred colour lights up and the relay contacts open). Protection operates at supply voltage levelexceeding 36 V. When supply network voltage becomes normal again, ABC will automaticallybe started and will continue charging the battery in standard mode.2. Protection of ABC from transient processes in power supply circuit – ensured byinductance-capacitance filter in-built in ABC. The filter suppresses the interference appearing inpower supply circuits without interruption of ABC operation process.3. Protection of ABC from current overload or short-circuit in AB circuit is ensured bymeans of electronic blocking of power output. In case of overload or short-circuit in AB circuit,ABC identifies build-up of output current and instantly disconnects all power from power outputwith further enabling of alarm signal (sound signal is enabled, light-emitting diode Failure of redcolour lights up and relay contacts open). The power output will continue to remain disableduntil the cause of overload (or short circuit) is eliminated. After eliminating the cause ofoverload or short circuit the power output will automatically be unblocked, ABC willautomatically be started and will continue charging the battery in standard mode.4. Protection of ABC from connection of AB with reverse polarity is ensured by meansof electromechanical disconnection of ABC charging circuit from AB followed by alarm signal(sound signal is enabled, light-emitting diode Failure of red colour lights up and relay contactsopen). When AB with appropriate polarity is connected, ABC will automatically be connected toAB and will continue charging AB in standard mode.5. Protection of AB from overheating is ensured by selection of ABC with the requiredcharging rate. To activate this protection use the external thermal sensor TDS-135 which isdirectly attached to AB wall. The sensor transfers present temperature of accumulator battery toABC via communication cable. As the temperature increases, ABC automatically reducesvoltage and charging current to prevent overheating of AB. When this protection operates, thesignalling is not activated since charging parameters change in dynamic mode.6. This paragraph is applicable only to battery chargers with direct current powersupply (refer to Table 1). Protection of ABC from connection of power supply with reversepolarity is ensured by means of electromechanical disconnection of ABC from power supplynetwork. When protection operates, the alarm signalling is enabled (sound signal is enabled,light-emitting diode Failure of red colour lights up and the relay contacts open). When supplynetwork with correct polarity is connected, ABC will automatically be started and will continuecharging the battery in standard mode.7. This paragraph is applicable only to battery chargers with alternating currentpower supply (refer to Table 1). ABC is not sensitive to the sequence of connection of powernetwork phase and with any sequence it will operate with the same functionality. This protectionis not followed by signalling. |
This manual is suitable for:
manualsdatabase
Your AI-powered manual search engine