DC Controller
UPC4 Master
User Manual
Page 24/100
©2010. ELTEK VALERE DEUTSCHLAND GmbH. UM_UPC4_V2.00_E_R1.1_2011-01-04
(For details please see section 6.4.4 Service/Enable
).
During equalize charge the charge voltage is increased compared to the trickle charge voltage.
Further
more this charging mode is current-limited by a settable value.
After the end-of-charge voltage is reached for a period of 40 minutes or a settable max. time value is
re
ached, equalize charging is finished.
(For details please see section 5.4.3 Equalize charge
).
4.3.10 Boost charge
For rapid recharge of the battery (only ventilated batteries) a boost charge mode is available. Boost
charge can be started in different ways:
manually at the display (an external remote display RDD, RDP is required)
at under-run of a settable voltage value
at battery operation or mains failure
automatically by date and time
automatic repetition at selectable days
externally via MMT software, SNMP, Modbus or Profibus (planned) alternatively
via digital input
via different parameters depending of the capacity calculator
Furthermore it is possible to suppress boost char
ge via digital input.
(For details please see section 6.4.4 Service/Enable
).
During boost charge mode is running the battery voltage is incr
eased to a greater value than the trickle
charge voltage. Furthermore a considerably greater battery charge current is defined for the duration
of the boost charge mode. If the defined charge voltage value is reached, a follow up charge duration
starts. After the expiration the boost charge voltage is automatically decreased to the value of the
trickle charge voltage.
Boost charge is not temperature-compensated.
(For details please see section 5.4.2 Boost charge
).
4.4 Isolation monitoring
Each BU is able to enable isolation monitoring. The resistance value (or several resistance values) is
transmitted to the UPC4. The UPC4 detects "Isolation failure" according to the set threshold values.
Isolation monitoring can be suppressed via digital input. Due to this further systems are coupleable
(Master/Slave).
(For details please see section 6.4.4 Service/Enable
).
4.5 Monitoring of general measured values
Voltage, current and temperature values can be monitored within a particular range by configuring the
respective threshold values. If the measuring value leaves the range which is defined by thresholds, an
event is generated by the the UPC4. By allocating the event to an alarm output (configuration), e.g.
over and under voltage alarms can be realized.
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