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Wieland 81.000.6230.0 User Manual Download Page 14

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Function description 

Wieland Electric GmbH | BA001052 (Rev. A) | 11/2018 

14 

The charger voltage is independent on the input voltage (power supply), and is user settable. 

Lead acid and lithium batteries share the same 3 stages charging algorithm as shown on Figure 7. 

 

Figure 7 Lead acid and Lithium charging algorithm 

For nickel batteries, during maintenance, the UPS module gives pulses of 3 s every 30 s with a maximum 
current of 1/10 of the battery charge current and maximum voltage equal to the battery charge voltage. 

 

Figure 8 Nickel charging algorithm 

For Supercapacitor after the constant current phase the algorithm goes directly to maintenance keeping 

the voltage at battery charge voltage. 

 

Figure 9 Figure 7: Supercapacitors charging algorithm 

 

Time

Current

Voltage

Constant current

Constant voltage

Maintenance

Charge current

Charge voltage

Float voltage

Time

Current

Voltage

Constant current

Constant voltage

Maintenance

Charge current

Charge voltage

Time

Current

Voltage

Constant current

Maintenance

Charge current

Charge voltage

Summary of Contents for 81.000.6230.0

Page 1: ...wipos UPS 20 960 Uninterruptable Power Supply USER MANUAL Doc No BA001052 Updated 11 2018 Rev A ...

Page 2: ...rs retain the right to modify the information This customer document describes all the hardware units and functions known at the present time Descriptions may be included for units which are not present at the customer site The exact scope of delivery is de scribed in the respective purchase contract Conformity Information For more information regarding CE marking and Declaration of Conform ity Do...

Page 3: ... 10 5 Function description 11 5 1 UPS mode 12 5 1 1 Backup battery mode 12 5 1 2 Battery health monitor 12 5 1 3 Battery charger 13 5 1 4 Coulomb counter 15 5 1 5 PC shutdown and automatic restart 15 5 1 6 Cold start 16 5 1 7 Blink output on backup 17 5 2 DC DC mode 17 5 3 Current limit 18 5 3 1 Current limit in UPS mode 18 5 3 2 Current limit in DC DC mode 18 5 4 Inhibit 18 5 5 Modbus 19 6 User i...

Page 4: ...ure 5 UPS connection example 12 Figure 6 Internal resistance measurement 13 Figure 7 Lead acid and Lithium charging algorithm 14 Figure 8 Nickel charging algorithm 14 Figure 9 Figure 7 Supercapacitors charging algorithm 14 Figure 10 Shutdown and restart chart 15 Figure 11 DC DC connection example 17 Figure 12 UPS status screen 24 Figure 13 DC DC status screen 24 Figure 14 Alarm screen 24 Figure 15...

Page 5: ...he manual at the beginning 1 3 Presentation of safety relevant information Information that warns of personal injury or property damage are emphasized by safety instructions Please read this information carefully This operating manual uses various safety notices that are assigned according to the severity of a potential hazard Danger Immediate or likely danger Personal injury or death is possible ...

Page 6: ...d in these operating instructions Where necessary safety precautions and safety devices must comply with the applicable regulations Damaged products must neither be installed nor put into operation In case of a defect please return the device to Wieland Electric The unit must not be opened Do not insert any objects into the unit Keep the unit away from fire and water Attention Ensure appropriate i...

Page 7: ... ensure that elec trical electronic products are recycled using the best available recovery techniques to minimize the impact on the environment This product contains high quality materials and components which can be recycled At the end of its life this product MUST NOT be mixed with other commercial waste for disposal Check the terms and con ditions of your supplier for disposal information ...

Page 8: ... converted to any output voltage as per the set up 3 1 Overview of the UPS module s front NOTE 1 Alarm LED indicator ON when the unit is in backup Blinks at 1 Hz rate in case of error 2 Modbus over USB Used to connect a PC with user software or custom application for remote monitoring and controlling Firmware update is also possible through USB connection 3 Temperature sensor Optional temperature ...

Page 9: ...ted to a power supply rated 12 48 V DC 13 Output connection 2 connectors are provided for output connection It must be connected to the load to be backed up 14 Battery DC DC input connection 2 connectors are provided for battery connection This must be connected to the battery in UPS mode or to the power supply in DC DC mode Although the unit is protected the correct polarity must be respected 12 ...

Page 10: ...rge cycles and Coulomb counter User settable maximum backup time Remote inhibit input Connection for a battery thermal sensor optional Modbus over USB and RS485 interfaces for control and monitoring Auxiliary output from the battery voltage max 5 A protected against overcurrent short circuit Suitable for energy management applications Suitable for user software Embedded user interface 4 keys and 1...

Page 11: ...kup the converter keeps the output voltage regulated draining power from the battery The converter is digitally controlled Figure 4 Simplified block diagram for UPS 20 960 Input Input switch I U Input voltage and current measurement I U Output voltage and current measurement Output I U Battery voltage and current measurement I U Auxiliary voltage and current measurement Auxiliary supply Battery 30...

Page 12: ...y life and shortening the recharge time avoiding dis charging the battery when not needed See no 24 in section 6 2 for more details During backup the internal Coulomb counter is used to give an estimation of the residual charge of the battery Backup starts when the output voltage is lower than 90 of the nominal output voltage See no 20 in section 6 2 for more details 5 1 2 Battery health monitor T...

Page 13: ...y Battery type see no 5 in section 6 2 Battery charge voltage see no 6 in section 6 2 Battery charge current see no 7 in section 6 2 Battery float voltage see no 8 in section 6 2 The battery charge terminates in case at least one of the following conditions are satisfied Low current The measured battery charge current is lower than 10 of the battery charge cur rent while the measured voltage is at...

Page 14: ...ent of 1 10 of the battery charge current and maximum voltage equal to the battery charge voltage Figure 8 Nickel charging algorithm For Supercapacitor after the constant current phase the algorithm goes directly to maintenance keeping the voltage at battery charge voltage Figure 9 Figure 7 Supercapacitors charging algorithm Time Current Voltage Constant current Constant voltage Maintenance Charge...

Page 15: ...as sumes the battery is fully discharged and start with 0 Ah counter Once the battery is fully charged the system sets the counter to the nominal capacity specified by the user See no 12 in section 6 2 for more details 5 1 5 PC shutdown and automatic restart PC shutdown In case the UPS module is used to supply a PC it is possible to automatically shut down the PC after an adjustable time of backup...

Page 16: ...e Ioff PC OFF detection cur rent threshold User settable see no 39 in section 6 2 Current threshold used to detect PC OFF status This value must be lower than the minimum PC current consumption when this is ON Table 1 Shutdown and restart The parameters are settable through the UPS module user interface or using the user software The checkbox Run on startup must be checked in the user software whe...

Page 17: ...his function may be used on illumination application where is necessary to inform the person in the building that the lighting is running on batteries 5 2 DC DC mode The UPS module can be used as a high performance DC DC converter An example of DC DC connection is given on Figure 11 Any voltage between 10 V to 55 V can be converted to any voltage between 10 V to 55 V step up and step down operatio...

Page 18: ...20 A and the load needs 10 A while the maxi mum charge current is set at 12 A the controller will limit the charging current automatically to 10 A until the load will need 10 A Battery maximum discharge current see no 11 in section 6 2 default 20 A it is used to limit the maximum discharge current delivered from the battery during the backup function When the threshold is reached due to excessive ...

Page 19: ...consecutive registers in big endian order UINT32 3 16 Unsigned 32 bit value Composed of 2 consecutive registers in big endian order DATE 3 16 Time and date field Composed of 4 Modbus registers as follows Address offset Byte Description 0 MSB Reserved set to 0 LSB Year 2000 1 MSB Month 1 January LSB Day of the month 2 MSB Hour of the day 24h format LSB Minutes 3 MSB Milliseconds LSB Table 2 Modbus ...

Page 20: ...i max variation 0x1020 UINT16 R W 1 1 2 Operating mode 1 UPS 2 DC DC 0x1021 UINT16 R W 0 1 10 58 Nominal output voltage 0x1022 UINT16 R W 0 1 5 21 Max input current 0x1023 UINT16 R W 0 1 1 21 Max output current 0x1024 UINT16 R W 1 0 1 Max Backup time enable 0 Disabled 1 Enabled 0x1025 UINT16 R W 1 m 1 1440 Max backup time 0x1026 UINT16 R W 1 0 1 Buzzer enable 0 Disabled 1 Enable 0x1027 UINT16 R W ...

Page 21: ...0x1100 DATE R W 1 0 1 Battery installation date 0x1104 UINT16 R W 1 0 65535 Battery charge cycles Metering 0x2000 SINT16 R 0 1 V 0 60 Input voltage 0x2001 SINT16 R 0 1 A 0 40 Input current 0x2002 SINT16 R 0 1 V 0 60 Output voltage 0x2003 SINT16 R 0 1 A 0 40 Output current 0x2004 SINT16 R 0 1 V 0 60 Battery voltage 0x2005 SINT16 R 0 1 A 25 25 Battery current 0x2006 SINT16 R 0 1 V 0 60 Auxiliary vol...

Page 22: ... 1 Cold start 0x4022 BIT R 1 0 1 PC shutdown 0x4023 BIT R 1 0 1 PC power off 0x4024 BIT R 1 0 1 External temperature sensor presence 0x4025 BIT R 1 0 1 Inhibit 0x4026 BIT R 1 0 1 Output disabled 0x4027 BIT R 1 0 1 Auxiliary output disabled 0x4030 BIT R 1 0 1 Backup 0x4031 BIT R 1 0 1 Input undervoltage 0x4032 BIT R 1 0 1 Input overvoltage 0x4033 BIT R 1 0 1 Output undervoltage 0x4034 BIT R 1 0 1 O...

Page 23: ...avigate through the parameters Press the OK key to enter exit the editing mode In editing mode use the UP DOWN key to change the highlighted value Info Device information such as firmware version serial number and device name is visible from this menu Logs All the alarms and event are logged in a circular buffer and visible from this screen Use the UP DOWN key to navigate through the logs Wizard T...

Page 24: ...or each section the icon background color reflects its status green on healthy state or red orange oth erwise Furthermore in case of alarm a message appears on the screen after 60 s of inactivity no key pressed 6 2 Settings The setting menu contains all the configurable parameters available to the user Use the UP DOWN key to navigate through the menu items Press the OK key to enter and exit the ed...

Page 25: ...type 0x1010 6 Battery charge voltage The maximum voltage applied to the battery while charging See section 5 1 3 for details about the use of this parameter on the different charging algorithms Default Value Range Resolution 10 V 10 58 V 0 1 V Unit LCD name Modbus address Volts Bat charge U 0x1011 7 Battery charge current The maximum current sourced to the battery while charging See section 5 1 3 ...

Page 26: ...1 A Unit LCD name Modbus address Amperes Bat max disch I 0x1016 12 Battery capacity Supercap capacitance Nominal capacity Ah of the installed battery or capacitance F in case a Supercapacitor is installed This parameter is used to calculate the battery State of Charge SoC during charge and discharge Default Value Range Resolution 1 Ah or 1 F 1 200 Ah or F 0 1 Ah or F Unit LCD name Modbus address A...

Page 27: ...m Unit LCD name Modbus address Milli Ohm Ri nominal 0x101C 18 Ri max variation Used for the threshold calculation of the Battery Ri too high alarm see no 2 in section 6 4 2 Default Value Range Resolution 300 50 300 1 Unit LCD name Modbus address Percent Ri max variation 0x101D 19 Operating mode Defines the UPS module s operating mode See section 5 1 and 5 2 for details of each mode Default Value V...

Page 28: ...ary Default Value Range Resolution 20 A 5 21 A 0 1 A Unit LCD name Modbus address Amperes Max output I 0x1023 23 Max Backup time enable If enabled the UPS module shuts down if the backup last more than the Max backup time value see no 24 in section 6 2 Default Value Values Modbus value Disabled Disabled 0 Enabled 1 Unit LCD name Modbus address N A Backup time enable 0x1024 24 Max backup time If Ma...

Page 29: ...ue Flags bit Normally open Backup Normally open 0 Backup 1 Soc 25 2 Bat life time 3 Bat Ri too high 4 Bat Low 5 Bat Disconnected 6 Bat charge fail ure 7 Backup left 25 8 Unit LCD name Modbus address N A Relay 2 0x1028 28 Inhibit polarity Selects the active polarity of the inhibit input See section 5 4 for more information about the inhibit function Default Value Values Modbus value High Low 1 High...

Page 30: ... start on battery connection See section 5 1 6 for more details Default Value Values Modbus value Disabled Disabled 0 Enabled 1 Unit LCD name Modbus address N A CS on battery 0x102E 34 PC shutdown enable See section 5 1 5 for more details Default Value Values Modbus value Disabled Disabled 0 Enabled 1 Unit LCD name Modbus address N A PC shutdown enable 0x1030 35 PC automatic restart enable See sec...

Page 31: ...section 5 1 5 for more details Default Value Range Resolution 0 A 0 20 A 0 1 A Unit LCD name Modbus address Amperes PC OFF I 0x1035 40 PC off detection timer See section 5 1 5 for more details Default Value Range Resolution 1 s 1 60 s 1 s Unit LCD name Modbus address Seconds PC OFF time 0x1036 41 Blink output on backup enable See section 5 1 7 for more details Default Value Values Disabled Disable...

Page 32: ...D name Modbus address Volts Out SC detection th 0x1044 46 High inrush load enable When enabled and the output is switched on the unit sends a higher current pulse to withstand loads with a high start up inrush current Default Value Values Disabled Disabled 0 Enabled 1 Unit LCD name Modbus address N A High inrush enable 0x1045 47 Battery installation date This field is used to compute the battery l...

Page 33: ...LCD name Modbus FW subversion Device Identification Object Id 0x80 3 Build date Firmware build date LCD name Modbus Build date Device Identification Object Id 0x82 4 Build time Firmware build time LCD name Modbus Build time Device Identification Object Id 0x83 5 Serial number Device serial number LCD name Modbus S N Device Identification Object Id 0x81 6 Boot cycles Counter of power ON cycles Unit...

Page 34: ...d representing the current status 0 if inactive or 1 if active For info and alarms a log is generated at each status transaction In case of active alarm the front LED and the buzzer turn ON 6 4 1 Info 1 Battery charging Active when the battery is charging LCD name Modbus address Bat charging 0x4000 Value 1 Value 2 Inactive 0 Active 1 Not used 2 Battery floating Active when the battery is fully cha...

Page 35: ...5 the UPS module s output switches OFF LCD name Modbus address PC power OFF 0x4023 Value 1 Value 2 Inactive 0 Active 1 Not used 8 External temperature sensor presence Active if the optional external temperature sensor is connected LCD name Modbus address Ext T sensor presence 0x4024 Value 1 Value 2 Inactive 0 Active 1 Not used 9 Inhibit Active if the inhibit input signal is asserted see section 5 ...

Page 36: ...1 Offending threshold Status 1 0 Max measured value 3 Battery undertemperature Active when the battery measured temperature using the optional external sensor is under the threshold specified in Battery min temperature field see no 13 in section 6 2 If active the battery charged is disabled LCD name Modbus address Bat under temperature 0x4012 Value 1 Value 2 Inactive 0 Active 1 Status 0 1 Offendin...

Page 37: ...t SoC 25 0x4016 Value 1 Value 2 Inactive 0 Active 1 Not used 8 Battery over discharge current Active when the measured battery discharge current reaches the threshold specified in Battery max discharge current field see no 11 in section 6 2 LCD name Modbus address Bat over discharge I 0x4017 Value 1 Value 2 Inactive 0 Active 1 Status 0 1 Offending threshold Status 1 0 Max measured value 9 Battery ...

Page 38: ...ue 2 Inactive 0 Active 1 Status 0 1 Offending threshold Status 1 0 Max measured value 14 Output undervoltage Active when the measured output voltage is under 90 of the Nominal output voltage field see no 20 in section 6 2 LCD name Modbus address Output under voltage 0x4033 Value 1 Value 2 Inactive 0 Active 1 Status 0 1 Offending threshold Status 1 0 Min measured value 15 Output overvoltage Active ...

Page 39: ...ike in NiMh battery charging LCD name Modbus address Ext T sensor error 0x4038 Value 1 Value 2 Inactive 0 Active 1 Not used 20 Backup time left 25 Active when the system is in backup and the maximal backup time is less than the Max backup time field see no 24 in section 6 2 LCD name Modbus address Backup time left 25 0x4039 Value 1 Value 2 Inactive 0 Active 1 Not used 21 Warning overtemperature Ac...

Page 40: ...er ON count Not used 2 Shutdown event Generated at every time when the UPS module is turned OFF LCD name Modbus address Shutdown 0xE001 Value 1 Value 2 Shutdown count Shutdown reason 1 Deep discharge 2 Max backup time elapsed 3 Shutdown command 4 Reset command 5 Inhibit signal 6 5 Wizard system configuration The wizard assists the user during the UPS module configuration It should be run once at c...

Page 41: ...mbH BA001052 Rev A 11 2018 Wieland Electric GmbH Brennerstraße 10 14 D 96052 Bamberg Tel 49 0 951 9324 0 Fax49 0 951 9324 128 Email info wieland electric com http eshop wieland electric com http www wieland electric com ...

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