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39 

 

 

Buzzer beeps every 0.5 
seconds and  LCD 
display “output overload” 

Overload 

Remove some load 

Buzzer long beeps, LCD 
display “29”fault code 

The UPS output is in short 
circuit 

Make sure the load is not in short 
circuit, and then restart the UPS. 

The UPS only works on 
bypass mode 

The UPS is set to ECO 
mode, or the transfer 
times to bypass mode are 
limited. 

Set the UPS working mode to UPS 
type(non-parallel) or to reset the times 
of transferring to bypass or re-start the 
UPS 

Cannot Black start 

Battery switch is not 
properly closed: 
Battery fuse is not open: 
Or Battery low:   
Battery quantity set wrong; 
Power breaker in the rear 
panel not switch ON. 

Close the battery switch: 
Change the fuse: 
Recharge the battery: 
Power ON the UPS with AC to set the 
battery quantity &quantity;   
Switch on the power breaker. 

10 

Buzzer beeps 
continuously and LCD 
indicates 1,3,5,9,15, etc 
fault codes 

UPS is out of order 

Consult with your local agent for repair

Appendix 3 USB communication port definition 

Definition of port

 

 

Connection between PC USB port and UPS USB port. 

PC USB port 

UPS USB port 

Description 

Pin 1 

Pin 1 

PC : +5V 

Pin 2 

Pin 2 

PC : DPLUS signal 

Pin 3 

Pin 3 

PC :DMINUS signal 

Pin 4 

Pin 4 

Signal ground 

Available function of USB 

  Monitor UPS power status. 

  Monitor UPS alarm info. 

  Monitor UPS running parameters. 

  Timing off/on setting. 

Communication data format 

Baud rate ---------- 9600bps 
Byte length ---------- 8bit 
End bit ---------- 1bit 

Parity check ---------none 

   

CAUTION!

 

USB, RS232 and RS485 interface cannot be used at the same time, 

you can only use one of them at one time. 

Summary of Contents for YDC9300-B

Page 1: ...Uninterruptible Power Systems 10 15 20kVA Operation Manual 4256 6956 C...

Page 2: ...ut high frequency online UPS designed by our R D team who is with years of designing experiences on UPS With excellent electrical performance perfect intelligent monitoring and network functions smart...

Page 3: ...nstallation 12 3 10 Computer access 13 4 Operation 15 4 1 Operation Modes 15 4 2 Turn on off UPS 16 4 3 The LCD Display 22 4 4 Parameters setting 25 4 5 Parallel system commissioning 33 4 6 Display Me...

Page 4: ...strongly poisonous and do harmful to body 4 Please avoid short circuit between anode and cathode of battery otherwise it will cause spark or fire 5 Don t disassemble the UPS cover or there may be an...

Page 5: ...ed at 32 blocks 34 blocks 36 blocks 38 blocks or 40 blocks according to your convenience Charging Current is configurable Via setting tool the user may set the capacity of the batteries as well as rea...

Page 6: ...ring the transportation do not switch on the UPS if any damage found Please contact the dealer right away 3 Check the accessories according to the packing list and contact the dealer in case of missin...

Page 7: ...witch signal Maintenance switch cover plate 7 Maintenance switch 8 Output Switch 9 Terminal block for Input output battery Ground Dual input 10 Ground 11 Parallel port 1 12 Parallel port 2 13 Intellig...

Page 8: ...ew Dual input terminal block without cover Dual input terminal block without cover 1 LCD panel 2 RS232 port 3 Input Switch 4 USB port 5 Dry contact port 6 External maintenance switch signal Maintenanc...

Page 9: ...d load capacity should be reduced by 12 per 5 The max temperature can t be higher than 50 If the UPS is dismantled under low temperature it might be in a condensing condition The UPS can t be installe...

Page 10: ...or a set of fuses located close to the battery UPS Output Any external distribution board used for load distribution shall be fitted with protective devices that may avoid the risk of UPS overloaded O...

Page 11: ...of the UPS are open Check to see if they are electrically isolated and post any necessary warning signs to prevent their inadvertent operation Remove the cover of terminals for wiring easily Single in...

Page 12: ...cables to the copper earth screw located on the floor of the equipment below the power connections All cabinets in the UPS must be grounded properly CAUTION The earthing and neutral bonding arrangemen...

Page 13: ...battery capacity selected All related settings can be done through LCD panel or monitoring software 3 8 2 Optional model The UPS adopts positive and negative double battery framework totally 16pcs op...

Page 14: ...ries with different capacity or different brands or even mix up new and old batteries either WARNING Ensure correct polarity of string end connections to the Battery Circuit Breaker and from the Batte...

Page 15: ...that all UPS are equally utilized and comply with relevant wiring rules please follow the requirements below 1 All UPS must be of the same rating and be connected to the same bypass source 2 The outpu...

Page 16: ...f Muser4000 click the button of Append then goes to a window of Append equipment Put the UPS name into Equipment Name and UPS ID address into Equipment address Click the button Append then the connect...

Page 17: ...interruption to the critical load The UPS will automatically return to Normal Mode when AC recovers Bypass mode If the inverter is out of order or if overload occurs the static transfer switch will b...

Page 18: ...screen Maintenance mode Manual Bypass A manual bypass switch is available to ensure continuity of supply to the critical load when the UPS is out of order or in repair and this manual bypass switch b...

Page 19: ...ty failure the rectifier will turn off and the battery should feed the inverter without interruption At this time the LEDs of battery should be turned on Switch on the MAINS to simulate utility recove...

Page 20: ...tead of the maintenance bypass then the bypass LED will light up Switch OFF the maintenance bypass breaker then the output is supplied by the static bypass of the UPS Put on the maintenance switch cov...

Page 21: ...witch for standard UPS Switch OFF the input breaker Switch OFF the bypass breaker Dual input version Switch OFF the OUTPUT breaker The UPS shuts down To completely isolate the UPS from AC Mains all in...

Page 22: ...er4000 software after connecting with the UPS successfully click System User Set Click Set at User Set window At the window of Data Set click Work Mode choose Parallel for the value then click Set as...

Page 23: ...as 1 then click Set as shown in below picture If the UPS sounds a beep that means the setting is correct CAUTION After changing the parallel system ID the connection between Muser4000 and equipment m...

Page 24: ...tions than those described in this manual There are 12 interfaces available in the LCD display Item Interface Description Content Displayed 01 CODE Operational status and mode 02 Input A Input L1 Volt...

Page 25: ...rational Status and mode When the UPS at single mode it shows NOR or ECO but If the UPS at parallel mode it shows PAL instead 2 Press scroll button the UPS goes to next page as shown below 2 Phase A L...

Page 26: ...24 6 Bat Negative 7 Backup time 8 Output Voltage Frequency 9 Load Capacity 10 Temperature battery Internal and ambient temperature 11 Software version model...

Page 27: ...e to the last one then returns back to the first one and vice versa 4 All alarm codes are present when abnormal behavior s occur s 4 4 Parameters setting The setting function is controlled by 3 button...

Page 28: ...ty setting 4 4 2 Output voltage setting Output voltage setting Note Inside the broken line is the flashing part In the mode setting press ON or in frequency setting press Off it goes to the output vol...

Page 29: ...UTION When powered by inverter it is necessary to turn off the inverter before setting voltage and frequency level 4 4 4 Battery capacity setting Battery capacity setting Note Inside the broken line i...

Page 30: ...nd goes to battery capacity setting 4 4 6 Bypass voltage upper limit setting Bypass voltage upper limit setting Note Inside the broken line is the flashing part In the battery quantity setting press O...

Page 31: ...d save the bypass voltage lower limit setting value and goes to buzzer mute setting Press OFF to exit the bypass voltage lower limit setting and goes to bypass upper limit setting 4 4 8 Buzzer Mute Se...

Page 32: ...ting and save the setting value and goes to battery temperature compensation sensor switch setting Press OFF to exit Periodically Self test setting and goes to buzzer setting 4 4 10 Battery temperatur...

Page 33: ...setting value and parallel ID setting Note Under single UPS mode until this device address setting save and exit single UPS setting is done Press OFF to exit the device address setting and transfer t...

Page 34: ...nd goes to parallel redundancy quantity setting Press OFF to exit the parallel quantity setting and goes to parallel ID setting 4 4 14 Parallel redundancy quantity setting Parallel redundancy quantity...

Page 35: ...eaker of Unit 1 and make sure the UPS is off Turn on the input breaker of Unit 2 access the LCD setting interface setting the parallel working mode ID NO 2 parallel 4 units redundant number The other...

Page 36: ...NGUISH X EXTINGUISH 11 Maintenance Bypass Mode EXTINGUISH EXTINGUISH EXTINGUISH EXTINGUISH 12 Fault Mode LIGHT X X X CAUTION X means it is determined by other conditions Alarm Information Fault code E...

Page 37: ...LED blinking 31 Bypass over current Once per second BPS LED blinking 32 Overload Once per second INV or BPS LED blinking 33 No battery Once per second Battery LED blinking 34 Battery under voltage On...

Page 38: ...web based auto language detection Typical topology of the UPS Network Management Relay card A 10 pin terminal is supported to offer the signals of Bypass Utility Failure Inverter On Battery Low UPS f...

Page 39: ...Up to 94 5 Battery Voltage Standard unit 120Vdc 20pcs9AH 20pcs7AH 2x20pcs 7 9AH optional 120Vdc 2x20pcs 9AH 2x20pcs 7AH optional Long run unit 96 108 120Vdc 16 20 pcs 16 pcs define Standard unit and 2...

Page 40: ...tatus etc Read the user manual carefully it can help a lot for using this UPS in the right way Some FAQ frequently asked questions may help you to troubleshoot your problem easily No Problem Possible...

Page 41: ...attery switch Change the fuse Recharge the battery Power ON the UPS with AC to set the battery quantity quantity Switch on the power breaker 10 Buzzer beeps continuously and LCD indicates 1 3 5 9 15 e...

Page 42: ...in 3 Pin 3 PC send UPS receive Pin 5 Pin 5 ground Available function of RS232 Monitor UPS power status Monitor UPS alarm info Monitor UPS running parameters Timing off on setting RS 232 communication...

Page 43: ...nction of RS485 Monitor UPS power status Monitor UPS alarm info Monitor UPS running parameters Timing off on setting Battery environment temperature monitoring Charging voltage modulation depending on...

Page 44: ...Battery environment temperature monitoring Charging voltage modulation depending on batteries temperature Appendix 7 Optional port definition Definition of Male port Instruction Relay Dry Contact Port...

Page 45: ...iption Pin 1 Pin 1 EPO Pin 2 Pin 2 GND A remote emergency stop switch Dry contact signal and normally open not provided can be installed in a remote location and connection through simple wires to the...

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