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DCU20

User Manual rev. 21

Page 4/29

Name .................................................................................................................................................. 22

Power ON cycles counter ................................................................................................................... 22

Operating time .................................................................................................................................... 23

Battery installation date ...................................................................................................................... 23

Battery operating time ........................................................................................................................ 23

Logs .......................................................................................................................................................... 23

Wizard ....................................................................................................................................................... 23

Events and Alarms ......................................................................................................................................... 24

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Содержание DCU20

Страница 1: ...DCU20 User Manual rev 21 Page 1 29 DCU20 12 24V 20A High Performance DC UPS User Manual...

Страница 2: ...ication in which the failure of the NEXTYS product could create a situation where personal injury or death may occur Should Buyer purchase or use NEXTYS products for any such unintended or unauthorize...

Страница 3: ...ge 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...

Страница 4: ...Manual rev 21 Page 4 29 5 3 3 Name 22 5 3 4 Power ON cycles counter 22 5 3 5 Operating time 23 5 3 6 Battery installation date 23 5 3 7 Battery operating time 23 5 4 Logs 23 5 5 Wizard 23 6 Events and...

Страница 5: ...ays are present for remote monitoring See 3 1 for more details 5 Inhibit input A signal between 5VDC and 30VDC applied to this input inhibits the backup function this input is programmable to be activ...

Страница 6: ...time Remote input to inhibit the UPS function Connection of a battery thermal sensor optional Integrated data logger with time stamp all events errors are logged in the internal memory and downloadabl...

Страница 7: ...onitored by the microprocessor In case of a power outage the battery is connected to the load instantaneously through an active switch reducing the power loss to a minimum The product offers additiona...

Страница 8: ...the recharge time avoiding discharging the battery when not needed During backup the internal Coulomb counter is used to give an estimation of the residual charge of the battery this information is g...

Страница 9: ...FF signal PC status Output voltage Output current Input voltage T1 T2 T3 T4 T3 E3 E1 E2 E4 Ioff Figure 5 Shutdown and restart chart Parameter Name Description E1 Backup Power failure on the line happe...

Страница 10: ...below the Ioff current threshold to trigger the automatic PC restart PC supply ON OFF ON cycle Ioff PC OFF detection current threshold User settable 5 2 27 Current threshold used to detect PC OFF sta...

Страница 11: ...inals on the DCU20 The measured resistance will be in this case Rmeasured Ri Rcables When high Ah batteries and or small and long cables are used Rcables can be Ri Anyhow a connection problem as for e...

Страница 12: ...rmined amount of time The value is automatically calculated by the device For Nickel batteries only the following conditions are also checked Temperature Cutoff TCO The battery temperature if higher t...

Страница 13: ...procedure is used to turn ON the UPS to operate during a power interruption or to determine if the UPS will not turn ON due to a bad input power This practice is also a method to see if the battery co...

Страница 14: ...the wiring polarity Please check the load and the power supply are rating compliant 4 3 Connecting the battery The DCU20 must be connected to a battery with nominal voltage between 12VDC and 28VDC wit...

Страница 15: ...input fails with no battery backup The polarity of this input can be changed as explained in 5 2 15 4 6 Dry contacts 2 relays dry contacts are provided on the DCU20 Connect the 2 relays dry contact u...

Страница 16: ...ce settings are configurable from this menu Use the UP DOWN KEY to navigate through the parameters Press the OK KEY to enter exit the editing mode In editing mode use the UP DOWN KEY to change the hig...

Страница 17: ...nges from green to red and a message with the cause appears Battery The battery voltage current temperature resistance and charge are shown in this section In case of problems with the battery the bac...

Страница 18: ...Battery capacity Used to set the nominal battery capacity of the battery The internal Coulomb counter uses this value to indicate the state of charge of the battery Default 2Ah Range 1 2Ah 150Ah Resol...

Страница 19: ...0 Resolution 1 5 2 11 Battery maximum temperature An optional external temperature sensor P N WNTC 2MT is required Used to set the maximum temperature at which the battery can operate safely If the me...

Страница 20: ...backlight Used to set the LCD screen backlight Default 2 Range 1 10 Resolution 1 5 2 18 Screen timeout To save the LCD backlight the system dims the LCD after the defined timeout value Default 5min Ra...

Страница 21: ...backup and PC shutdown command sent by POWERMASTER see 3 3 for details Default 0s Range 0s 60min Resolution 1s 5 2 25 PC shutdown time Delay between start of PC shutdown and output power OFF see 3 3...

Страница 22: ...arity and event associated with the relay See 3 1 3 for more details 5 3 Info While in the info menu use the UP DOWN KEY to navigate through the menu items 5 3 1 Firmware version Shows the current fir...

Страница 23: ...Use the UP DOWN KEYS to navigate between logs For each event the following information is given Timestamp The time and date at which the event happened Event name The name identifying the event see 6...

Страница 24: ...click next to confirm See 5 2 11 for more details 11 Insert the battery expected lifetime and click next to confirm See 5 2 13 for more details 12 Insert the battery installation date and click next t...

Страница 25: ...START IUVS Threshold voltage triggering the alarm Description The measured input voltage is lower than the alarm threshold The threshold is calculated taking the lowest value between the input nominal...

Страница 26: ...alarm Description The measured output current returns below the alarm threshold Name Short name Value ALARM_BATTERY_UNDERVOLT_START BUVS Threshold voltage triggering the alarm Description The measure...

Страница 27: ...reached during the alarm Description The measured battery temperature returns below the alarm threshold Name Short name Value ALARM_BATTERY_UNDERTEMP_START BUTS Threshold temperature triggering the a...

Страница 28: ...me Short name Value ALARM_SHORT_CIRCUIT Short circ None Description A short circuit has been detected on the output Name Short name Value ALARM_BATTERY_ERROR Batt error None Description The DCU20 was...

Страница 29: ...DCU20 User Manual rev 21 Page 29 29 Physical dimensions...

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