DCU20
User Manual rev. 19
Page 3/29
TABLE OF CONTENTS
1
System description ........................................................................................................................................... 5
2
Features and benefits ....................................................................................................................................... 6
3
Functional description ...................................................................................................................................... 7
3.1
Remote monitoring and controlling ............................................................................................................. 7
3.1.1
USB ...................................................................................................................................................... 7
3.1.2
Digital input........................................................................................................................................... 7
3.1.3
Dry contact outputs .............................................................................................................................. 7
3.2
Backup ........................................................................................................................................................ 8
3.3
PC shutdown and automatic restart ........................................................................................................... 8
3.4
Battery health monitor............................................................................................................................... 10
3.5
Battery resistance measurement .............................................................................................................. 11
3.6
Battery charger ......................................................................................................................................... 11
3.7
Coulomb counter ...................................................................................................................................... 12
3.8
Cold start .................................................................................................................................................. 13
4
Installation ...................................................................................................................................................... 14
4.1
Connecting the input to the power supply ................................................................................................ 14
4.2
Connecting the load .................................................................................................................................. 14
4.3
Connecting the battery ............................................................................................................................. 14
4.4
Connecting the temperature sensor ......................................................................................................... 14
4.5
Connecting the INHIBIT input ................................................................................................................... 15
4.6
Dry contacts .............................................................................................................................................. 15
4.7
Battery sense connection ......................................................................................................................... 15
5
User interface ................................................................................................................................................. 16
5.1
Status ........................................................................................................................................................ 17
5.2
Settings ..................................................................................................................................................... 17
5.2.1
Input nominal voltage ......................................................................................................................... 18
5.2.2
Battery chemistry ............................................................................................................................... 18
5.2.3
Battery nominal voltage ...................................................................................................................... 18
5.2.4
Battery capacity .................................................................................................................................. 18
5.2.5
Battery charge voltage ....................................................................................................................... 18
5.2.6
Battery charge current ........................................................................................................................ 18
5.2.7
Battery deep discharge voltage ......................................................................................................... 18
5.2.8
Battery low voltage ............................................................................................................................. 19
5.2.9
Battery nominal internal resistance .................................................................................................... 19
5.2.10
Battery maximal internal resistance variation ................................................................................. 19
5.2.11
Battery maximum temperature ....................................................................................................... 19
5.2.12
Battery minimum temperature ........................................................................................................ 19
5.2.13
Battery lifetime ................................................................................................................................ 19
5.2.14
Maximum backup time .................................................................................................................... 20
5.2.15
Inhibit polarity .................................................................................................................................. 20
5.2.16
Screen contrast ............................................................................................................................... 20
5.2.17
Screen backlight ............................................................................................................................. 20
5.2.18
Screen timeout ................................................................................................................................ 20
5.2.19
Buzzer state .................................................................................................................................... 20
5.2.20
Date................................................................................................................................................. 20
5.2.21
Time ................................................................................................................................................ 21
5.2.22
PC shutdown enable ....................................................................................................................... 21
5.2.23
PC shutdown delay ......................................................................................................................... 21
5.2.24
PC shutdown time ........................................................................................................................... 21
5.2.25
PC restart minimum OFF time ........................................................................................................ 21
5.2.26
PC OFF detection current threshold ............................................................................................... 21
5.2.27
PC OFF detection timer .................................................................................................................. 21
5.2.28
Relay 1 (Ready) .............................................................................................................................. 22
5.2.29
Relay 2 (Backup) ............................................................................................................................ 22
5.3
Info ............................................................................................................................................................ 22
5.3.1
Firmware version ................................................................................................................................ 22
5.3.2
Serial .................................................................................................................................................. 22
5.3.3
Name .................................................................................................................................................. 22
3
DCU20_1680-21539-0006-E-1117