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S8M Digital Multicircuit Protector User`s Manual

1. S8M CP04 R S8M CP04 RS The S8M Support Tool can be used with the S8M CP04 R and S8M CP04 RS The S8M CP04 is not equipped with a communications port so the Sup port Tool cannot be used with the S8M CP04 The Support Tool can be used with Microsoft Windows 2000 or Windows XP Compatible models S8M CP04 R and S8M CP04 RS Incompatible models S8M CP04 Compatible operating Microsoft Windows 2000 and Windows XP systems The S8M Support Tool can be downloaded from OMRON s website The download is free Installing the Support Tool Installing the Support Tool 1 2 3 Section 6 1 From the OMRON website download the S8M_SUPPORT_TOOL EN exe and S8M_SUPPORT_TOOL EN msi files move them to the desktop and double click the S8M SUPPORT TOOL EN exe file The installation method depends on the environment Environment other than Net Framework 1 1 Double click SSM SUPPORT TOOL EN exe Net Framework 1 1 environment Double click SEM SUPPORT TOOL EN msi When the S8M Support Tool has already been installed and you are install ing again to repair or upgrade the software use the Windows Add Remove Programs function to uninstall the existing program before installing the new program It isn t necessary to uninstall NET Framework 1 1 Welcome to the 58M support tool Setup Wizard The installer will quide you through the steps required to install S8M s
2. Return to C V display Note Ifthe branch output s current exceeds the set value the output will be cut off The current tripping type is set with the following C T cutoff type display The tripping type can be set in protection level 0 only After an output is cut off the seven segment display will alternately show error code A11 and the current and the Tripping Alarm Output TRP will be turned OFF The error can be cleared immediately but the next error cannot be cleared for another 15 s 56 Individual Branch Output Settings Section 4 6 Setting the Current Tripping Type C T Cutoff Type This parameter can be set in protection level 0 only If the S8M is in protection level 0 press the Key from the cur rent tripping value C V display to switch to the current tripping type setting display oelect the tripping type for branch output 1 Sa Go to page 58 for the overcur rent alarm value setting Press the Key to display the setting INS Instantaneous detection trips if the excessive current lasts over 10 ms The output can be cut off within 20 ms USU Standard detection trips if the excessive cur rent lasts over 80 ms The output can be cut off within 100 ms The setting can be changed by pressing the or Key The S8M will automatically return to the C T dis play if no key is pressed within 3 s When the Key is pressed the SV display will flash When the f
3. Computer K3SC 10 K3SC 10 S8M Name Pin Pin Name Name Pin RS 485 CD 1 1 PWR SG 7 RS SD 3 3 SG SDA 9 t SDAD 232C ER 4 4 PWR NC 10 inter SG 5 5 SD RDB 11 face DR 6 6 RD SDB 4 12 See rote 15 spea a f Note We recommend twisting CS 8 the RS 485 Gi 9 communications lines Termin DIP SW Hao dd W DIP SW SW1 1 OFF SW1 1 OFF Power Supply ipo d ieee Si ri Power Supply AC model SW1 3 OFF SW1 3 OFF AC model 100 to 240 VAC SW1 4 OFF SW1 4 OFF 100 to 240 VAC DC model SW1 5 OFF SW1 5 OFF DC model 24 VDC or 24 VAC SW1 6 OFF SW1 6 OFF 24 VDC or 24 VAC 50 to 60 Hz SW1 7 OFF SW1 7 OFF 50 to 60 Hz SW1 8 OFF SW1 8 OFF SW1 9 OFF SW1 9 OFF SW1 0 OFF SW1 0 OFF K3SC 10 S8M Name RS 232C See note ADAG termi SPA nals See note 1 aoa n Note We recommend twisting the RS 485 communications lines DIP SW SW1 1 OFF SW1 2 OFF SW1 3 OFF SW1 4 OFF REL DE SW1 5 OFF 100 to 240 VAC SW1 7 OFF OF SW1 8 OFF 50 to 60 Hz SW1 9 OFF SW1 0 OFF Note When connecting and communicating with multiple S8Ms in this way a unique unit number must be set on each S8M For details on setting the unit number refer to pages 67 and 87 45 RS 232C Port Wiring S8M CP04 R and S M CP04 RS Only Section 3 4 46 SECTION 4 Parameter Settings This section explains how to set S8M parameters dsl Parameter Table su oue solent Babe ee cu e o Rp e tee NA bou e c 48 4 2
4. udis current of branch Present current of branch output 1 1 IRI il T Peak output current of branch output 1 See note Present current of branch output 2 current of branch Present current of branch output 2 2 muda EE Present currentofbranchouiputs o o e o o e o o o Peak output current of branch output3 O O e o 0 OB O O mu ZZ eee ee za Peak output current of branch output O O Total current of branch outputs 1 to 4 Lk total current for branch outputs 1 to 4is Bem 9 o o o o o e o o gum __ fy ete eiate te O Not lit e Lit x Flashing Note The procedure for clearing peak output currents is given next Clearing Peak Output The peak output currents can be cleared Clearing is possible in any protec Currents tion level The procedure for clearing the peak output current for branch output 1 is given below Press the Up Key Ej or Down Key until the A unit indicator flashes Press the Mode Key NO will be displayed Clearing is not possible from this display so press the Up Key El to change the dis play to YES If no keys are pressed within 5 s the S8M will automatically return to the last display Flashing 79 Run Mode Section 5 4 SA dary Press the Mode Key Clear ing the peak time will be started and 0 0 will flash on the display Flashing When 0 0 stops flashing the c
5. USER S MANUAL S8M Digital Multicircuit Protector User s Manual Produced April 2006 TABLE OF CONTENTS SECTION 1 Features and Functions 1 2 7 t l Overview ol Features and FUNCHONS III WI AUAWA 1 2 S8M Operations and Operating Modes lo Fable or Basic UNA Ive au ee cea wed oco ee ler a re whe Bees 10 l SS N Operatins Procede a3 sans dde mex ipe e rb e lr adn dea eem debido Pri eats 11 SECTION 2 Specificationsand Functions 13 2 1 Component Names and Functions 14 2 2 imema C Ont Curation ue 4 5 iain er dine wie ER RAE ea pa Ee vote emi 16 2 9 SP CCiFIC AU ONS aie mene cease asin ase seed Hore Sei ares doh et Reo eine beta ee eae us 18 2 4 Basie Puncaon Deltlls as coo a doe ot ee e Route deo idt tea ed 22 2 9 Startup Sequetice TU LOI sas So LEE E ue REC RU ER mnia Lbs Pe o M 30 2 6 Shutdown Sequence Function 31 SECTION 3 Installation and Wiring 33 3 I Installation Environment esserne pane HG CS OOHRS AEGEAN OER HESS AMES WES MUS Edad SS 34 9 25 UnstallatiOfia soos us cone ee Sota ee AIS ae SEES REE RAS Hes qu ees 35 So WHS UA AA ye ie CUT CH T 39 3 4 RS 232C Port Wiring S8M CP04 R and S8M CP04 RS Only 43 SECTION 4 Parameter Settings
6. is pressed branch output 1 will be connected and the output 1 indicator will light The seven segment display will flash the word off to indicate that the S8M is ready to disconnect branch out put 1 If the Mode Key is pressed again branch output 1 will be disconnected If branch output 2 will be connected press the Down AE If the Down Key is pressed the display will flash the word on to indicate that the S8M is ready to con nect branch output 1 Lit when connected Flashing To connect branch output 2 press the Mode Key Use the procedure above to test each branch output s connection and con nect the branch outputs that will be used Note Be sure to connect the branch outputs that will be used If a branch output is not connected when the S8M is switched to Run Mode that branch output cannot be used Either return to Test Mode and connect the output or connect it using communications If the Down Key B is pressed a second time when connecting disconnect ing branch output 4 the indictors for all branch outputs will flash and all branch outputs can be connected and disconnected at the same time Refer to 5 3 Checking Sequence Operation 76 Checking Sequence Operation Section 5 3 5 3 Checking Sequence Operation When you want to check the operation of the startup sequence function or shutdown sequence function press the Up Key zj or Down Key SI
7. 2 hl Branch output T 3 Normal 4 Normal Internal temperature Normal Run time Mormal External tripping OFF input Branch output Current connection o o 0 Reset Reset Button status Lit red because Present values Close the output was cut off 126 Clearing Errors Section 8 3 Example Error Display in the Present Values Window Present Values Input voltage s 24 4 Outputs Current when Branch output Peak output Peak output output was cut current 4 current 4 current clea off 99 ai ear E 0 0 00 Total current CA 0 0 Internal temperature oC Run time kh 0 0 Shunt output naan DA Connect Disconnect Current connection status e o Startup sequence Shutdown Sequence Lit red because the output was cut off Reset Button 127 Clearing Errors Section 8 3 128 Appendix A Glossary The following table lists terms related to the S8M Digital Multicircuit Protector and a brief description of the terms For details see the referenced page Term abnormal current tripping enig O T Page When a branch output s current exceeds the set value that output is cut off The tripping value can be set between 0 5 and 4 0 A 0 5 to 3 8 A in the UL Class 2 output model The Tripping Alarm Output TRP is turned OFF when the output is cut off 21 57 26 abnormal voltage tripping When the input voltag
8. 47 dT Parameter Table rens terena eee ne band AI ath eh watt iei 48 2 2 Parametr Settino Raliges s Gt Sct x breed IUE Son no ded ee do ens qi aos a eM ted o iod 49 4 3 Switching the Operating Mode 49 4 4 Changing the Protection Level 44x qe EAE RE E uo o ol eec D db es 54 4 5 Switching to Setting Mode 55 4 6 Individual Branch Output Settings 56 4 7 Shared Parameter Sn sauces a wate oo hee ore oe esc p Que en aaa deis 60 4 8 Special Settings and Communications Settings 64 SECTION 5 Trial Operation to Actual Operation 73 SS EE ES III fe 2 9 eet cal oe one ene ek eh eM a eas edt er ao dave We a RG GSE pees 74 5 2 Connection Disconnection Test 76 5 9 Checkms Sequence OperaLtlott s ouo eese Eae E ORE REO esee Ra 77 SA UN AI e Arama UA AA uat a dE 78 vi TABLE OF CONTENTS SECTION 6 SUDDOFt WAIUA 6 1 Installing the Support Tool 6 2 Starting the Support Tool 0 0 0 0 cc cee 6 3 Setting and Saving Parameters 624 MONONA n2x iacdthaddanaarcaie baba rob edo Selten eroe GO JODIE DIS DBITIB ST ef oes he AA SECTION 7 Communications 7 1 CompoWay F Communications Specificat
9. Safety Functions Short circuit Protection Fuse Note Thermal Fuse Note Safety When Cycling Power from Test Mode The following example shows the alarm and tripping operation when the over current alarm value abnormal current tripping value It is also possible to set the overcurrent alarm value abnormal current tripping value Power supply E voltage Abnormal tripping current value Branch output current Branch M e voltage Alarm Output ON OFF ON ALM Tripping Alarm ON OFF ON Output TRP Reset signal ee E i 3s If an error occurs that prevents the semiconductor relay from cutting off a branch output s current the short circuit protection fuse will blow to protect the circuit If the fuse blows that branch output cannot be used If an error occurs that prevents the semiconductor relay from cutting off a branch output and the temperature of the S8M s internal resistors rises abnor mally high the S8M s thermal fuse will blow to prevent a fire hazard If the fuse blows that circuit cannot be used If the S8M is turned OFF in Test Mode all branch outputs will be disconnected when the power is turned ON again This is because the connection discon nection settings have not been completed so all outputs are disconnected to ensure safety After completing connection disconnection settings in Test Mode always change to Run Mode or Setting Mode before turning OFF the
10. Shutdown Sequence Function Section 2 6 Note a When operation is cut off due to an abnormal voltage above 28 8 V all of the branch outputs will be cut off simultaneously b The shutdown sequence function will operate on a branch output only if the external tripping input is enabled for that branch output e The shutdown sequence s operation can be verified in Test Mode For details refer to 5 8 Checking Sequence Operation he shutdown sequence s operation can also be verified from the Support Tool by clicking the Shutdown sequence Button on the Present Values Window For details refer to page 94 Note The shutdown sequence functions in the following processes Operation cut off by the external tripping input e Shutdown sequence executed by CompoWay F command Startup oequence e Simultaneous cutoff of all outputs in Test Mode e Shutdown sequence executed from the Support Tool 32 SECTION 3 Installation and Wiring This section describes how to install and wire the S8M 321 installation Environment sees ey EROR CER RU Rer e ret p AE 34 2 2 JInstalblatiOlasu a Tahoe eet ee eae Sd OA dS LR dgio 35 IA WA IA vr 39 3 4 RS 232C Port Wiring S8M CP04 R and S8M CP04 RS Only 43 33 Installation Environment Section 3 1 3 1 Installation Environment Installation and Wiring Precautions Installation Site Installation in Cabinets or Control Panels Ambient Temperature 34
11. e When an internal circuit has failed the components can generate exces sive heat As a safety precaution against this kind of failure the S8M is equipped with a function that cuts off operation using a thermal fuse Internal Configuration Section 2 2 S8M CP04 RS UL Class 2 Output Model Cutoff Current detec Current detec Cutoff circuit tion resistor tion resistor circuit Thermal fuse Fuse f saV 4 DC branch output 1 zzi EL Current lim V iting circuit Power supply C C ii 2 z bbs utoff urrent detec Current detec Cutoff Processing circuit tion resistor tion resistor circuit circuit Thermal fuse Fuse y O O O O o j V o 7 Voltage Display detection circuit DC input power supply 2 l DC branch output 2 oV iaa SD Communica IS communica be tions terminals SGo bz Cutoff Current detec Current detec Cutoff circuit tion resistor Thermal fuse resistor circuit Tripping alarm output o TRP e bz o 2 3 DC branch output 3 Alarm output t9 v JJ ALM o set L Current lim d iting circuit Over temperature output to TMP abt ER Cutoff Current detec Current detec Cutoff ipi o circuit tion resistor tion resistor circuit dd bubo ENA Thermal fuse 7 O O m O O O DC branch output 4 px a gi Current lim V iting circuit In addition to the regular cutoff circuits cutoffs for abnormal current abnormal voltage
12. 100 to 240 VAC DC model 24 VDC or 24 VAC 50 to 60 Hz K3SC 10 Pin Name Namel Pin 1 PWR SG 7 2 NC RDA 8 3 SG SDA 9 4 PWR NC 10 5 SD RDB 11 6 HD SDB 4 12 DIP SW SW1 1 OFF SW1 2 OFF SW1 3 OFF SW1 4 OFF SW1 5 OFF SW1 6 OFF SW1 7 OFF SW1 8 OFF SW1 9 OFF SW1 0 OFF 1 2 3 4 5 SG inter 6 DR face 7 8 9 D Sub 9 pin female RS 485 See note See note S8M Pin Name RS SD 232C RD termi Co n SG nals K3SC 10 Pin Name Name Pin 7 SG PWR 1 8 RDA NC 2 9 SDA Sa 3 10 NC PWR 4 11 RDB 4 SD 5 12 SDB HD 6 Note We recommend twisting the RS 485 communications lines Terminator 100 Q 1 2 W recommended DIP SW SW1 1 OFF SW1 2 OFF SW1 3 OFF SW1 4 OFF SW1 5 OFF SW1 6 OFF SW1 7 OFF SW1 8 OFF SW1 9 OFF SW1 0 OFF Power Supply AC model 100 to 240 VAC DC model 24 VDC or 24 VAC 50 to 60 Hz RS 232C Port Wiring S8M CP04 R and S8M CP04 RS Only Section 3 4 Example 1 N Connection Using K3SC Serial Adapters
13. 4800 9600 Data length hits Fo H 718 Stop bits hits R M rz Parity even nane even add Communications timeout ms 200 60 000 250 Ok Cancel 96 Other Settings Section 6 5 Set the port number to the computer s RS 232C port number Communications Settings E X Communications Settings PC Made number v 0 31 Port COMA COME Baud rate aps 4600 3500 Data length hits fe Setting the Protection Select Edit Special Settings Level File Edit Communications Monitor Help Special Settings i xj Special Settings 58M Mode number T 0 31 Baud rate bpz aso 4600 9600 Data length hits H Ff Stop bits bits 2 472 Parity even none even J add Communications timeout ms 50 0 999 Protection level m SITA Ol Cancel Refer to page 54 for details on protection levels The protection level setting will become effective after the download is com pleted just like the other parameters 97 Other Settings Section 6 5 Initializing the Support Tool s Parameters Note Initializing the S8M s Parameters Reading the Version 98 When you want to initialize the parameters in the Support Tool select Edit Initialize 3 8 Support Tool File Edit Communications Monitor Help Special Settings tialize This operation does not dir
14. At the customer s request OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product machine system or other application or use The following are some examples of applications for which particular attention must be given This is not intended to be an exhaustive list of all possible uses of the products nor is it intended to imply that the uses listed may be suitable for the products e Outdoor use uses involving potential chemical contamination or electrical interference or conditions or uses not described in this manual e Nuclear energy control systems combustion systems railroad systems aviation systems medical equipment amusement machines vehicles safety equipment and installations subject to separate industry or government regulations e Systems machines and equipment that could present a risk to life or property Please know and observe all prohibitions of use applicable to the products NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM PROGRAMMABLE PRODUCTS
15. I SN note 0 5 4 6 12 Current A Current Tripping Characteristics When Instantaneous Detection Is Selected Time ms 20 Note 0 9 Setting range Characteristics when steady Tripping region Current limiting by internal circuits See note 12 Current A The S8M contains a current restricting circuit that prevents a current above a specific value from flowing The current is thus restricted during the time required to cut off the output m S8M CP04 RS UL Class 2 Output Model In addition to the regular current tripping function that cuts off operation at the user set tripping current the Class 2 output model is equipped with a tripping circuit that cuts off operation if the branch output s current exceeds 4 0 A fixed 23 Basic Function Details Section 2 4 Current Tripping Characteristics When Standard Detection Is Selected Time ms Setting Characteristics range when steady gt Tripping region Current limiting by internal circuits i p See note aa NN 20 I esie Ja nnn gif nnn nN unnn i 0 5 3 8 6 12 Current A Current Tripping Characteristics When Instantaneous Detection Is Selected NN 3 Note The S8M contains a current restricting circuit that prevents a current above a specific value from flowing The current is thus restricted during the time required to cut off the output Time ms Setting range Ch
16. If the Down Key f amp is pressed from the PTY display the display will switch to the send wait time setting display SWT 70 Special Settings and Communications Settings Section 4 8 Send Wait Time SWT Send Wait Time The send wait time setting display SWT will be displayed if the Down Key is pressed from the parity setting display PTY This parameter sets the RS 232C port s send wait time Press the Key to display the send wait time set ting The setting can be changed by pressing the and 3 Keys see note The setting range is 0 to 999 ms Note lf the 2 or Key is pressed for more than 2 s the SV will change in 10 ms units instead of 1 ms units Switch to the run time clear operation Change the setting with the and Keys The S8M will automatically return to the SWT display if no key is pressed within 3 s When the Key is pressed the setting will flash When the flashing stops the new setting will be saved and the S8M will return to SWT display If you want to confirm the new setting press the Key again from the SWT display If the Down Key 31 is pressed from the SWT display the display will switch to the run time clear display CLH Return to SWT display Run Time Clear CLR Time Clear The run time clear display will be displayed if the Down Key is pressed from the send wait time setting display SWT This operation resets the run time to O
17. Parameter Setting Kani 9499 64 4546 2a e AERA kon goa 8 EE 49 4 3 Switching the Operating Mode 49 4 4 Changing the Protection Level 54 4 5 Switching to Setting Mode 55 4 6 Individual Branch Output Settings 56 4 7 Shared Parameter Settings 60 4 8 Special Settings and Communications Settings 64 47 Parameter Table Section 4 1 4 1 Parameter Table The S8M s operation is determined by the parameter settings Each parame ter is set to its default value but each parameter should be checked and set as required to adjust the S8M for use in the system When setting the parameters with the S8M s keys switch the operating mode to Setting Mode The following table shows the setting parameters in the order that they are displayed in Setting Mode Parameter Seven segment Access in each Access from display protection level Support Tool 2 1 0 Macher WA a aatvate Ja Jo Jo Jo Current tripping type E E NUNA pe qo Or Jor Crecen aema ew See Ja o D Overenn aam bps AE Nus Same as branch output 1 oone alam vee se a Joo Overvotage alam value 8 Seve Ja o o o Funtime vale a see i o JoJo Over iomperature oupalvaue Fa Setvatue a o oo Startup sequence Bamhowpuri ea x JOO Branch ouput
18. To increase the S8M system s reliability and take full advantage of the S8M s functions observe the following precautions when installing the 88M Avoid locations with any of the following conditions when installing the S8M Locations subject to a temperature below 10 C or over 60 C Locations subject to a humidity below 25 or over 90 no condensation icing Locations subject to direct sunlight Locations subject to exposure to liquids debris or corrosive gases Locations subject to severe shock or vibration Locations near equipment that generates strong high frequency noise or surges Always enclose or protect the S8M sufficiently in the following locations Locations subject to static electricity or other forms of noise Locations subject to strong electromagnetic fields Locations subject to possible exposure to radioactivity Locations close to power lines When the S8M is being installed in a cabinet or control panel always provide suitable ambient conditions as well as access for operation and maintenance The operating temperature range for the S8M is 10 C to 60 C Observe the following precautions Provide enough space for good air flow Do not install the S8M above equipment that generates a large amount of heat such as heaters transformers or high capacity resistors e If the ambient temperature in the cabinet may exceed 60 C install an exhaust fan or air conditioner and use the Ov
19. e Setvaue x o Jo Branch ouput Setvaue x o Jo Branch ouput S Setvate xx JOJO a Branch out l o Jo Branch ouput Seve fx o J Branch upwa 425 See xx 19 gt Siang Baraa ira a ji we i i 9 9 Data eng conmuricatons seing n ae ef Stoo bis conmucaton eink fff Paty communications seting PE E x Servat time oneni Sa fff Cearrunime t js ooo x No access The parameter cannot be set or displayed A Read only access O Full access The parameter can be set or displayed rnm rrr li X X X IT X x X x x X il Note For details on the protection levels refer to page 54 48 Parameter Setting Ranges Section 4 2 4 2 Parameter Setting Ranges Parameter LED Indicators Setting range Default value Seven segment Branch output Unit display indicator indicator Current tripping value Only relevant 0 5 to 4 0 A See 4 0 A See note 1 circuits lit note 1 Abnormal current tripping Standard or instan Standard type taneous Overcurrent alarm value 0 5 to 4 0 A See 4 0 A See note 1 note 1 Overcurrent alarm type Standard or instan Standard taneous Undervoltage alarm value fur Not lit 18 0 to 26 4 V 20 0 to 28 8 V 28 8 V 1 to 99 9 kh 0 0 kh See note 2 25 to 80 C 80 C See note 3 Startup sequence Only relevant S 0 to 99 9 s Shutdown sequence circuits lit 0to 99 9 s External Tripping Input Only rel
20. u 1 000 500 19 See note See note Note PFP 50N dimensions are given in parentheses Mount the DIN Rail with M4 screws in at least three places with a maximum separation of 210 mm 6 holes between screws The tightening torque is 1 2 N m 10 8 in lb Attachment to the DIN The S8M attaches to the DIN Rail with one snap Hang the S8M on the top of Rail the DIN Rail with the installation notch on the back of the S8M pivot the S8M downward and press until the S8M locks securely on the Rail 1 2 3 1 Lower the S8M so that the installation notch hooks onto the top of the DIN Rail Zz 37 Installation Section 3 2 2 Press the S8M firmly onto the DIN Rail to mount it Press until the locks engage securely Press firmly but carefully to avoid damaging the S8M ie L Y _ OG ees SEL OOO Yee 3 4 V A kh s Recommended End Plate PFP M M4 spring washer Removal When removing the S8M from the DIN Rail pull the lock lever down with a flat blade screwdriver and pivot the S8M upward to remove it u Beri ern 3 4 Yaa FEER 38 Wiring Section 3 3 3 3 Wiring Wiring Precautions When wiring cover the top of the S8M to prevent wire strands from enter ing After completing the wiring be sure to remove the cover to avoid overheating The power input terminals have M4 screws
21. OF FINS com The specified FINS command could not be exe 7 mand error cuted Refer to the response code for more details 10 Parity error A parity error was detected in the received data 1 because the parity bit in the data did not match the parity setting The stop bit was O 12 Overrun error Attempted to write new data to the reception regis ter when the reception register was full BCC error The received BCC did not match the calculated BCC 14 Format error There was an illegal character in the FINS mini frame character other than ASCII 0 to 9 or A to F or data other than the test data was returned in response to an Echoback Test There were no SID and FINS mini There was no FINS mini The FINS mini MRC and SRC were incorrect 16 Subaddress The subaddress was invalid unsupported error There were no subaddress SID and FINS mini The subaddress was shorter than 2 characters and there were no SID and FINS mini e An end code is returned for each received command frame addressed to the local node No response will be returned if the message is not complete through the ETX and BCC characters he error priority indicates the priority of the error notification when there were two or more errors 102 Frame Structure Section 7 2 End Code Examples The following examples show some errors and corresponding end codes Missing Subaddress SID and FINS mini Command Node No BCC se m Respon
22. are cutoff within 10 ms Set the best tripping output current characteristics e f the S8M is tripped always remove the cause first and then reset the S8M e f using a load with a fixed power operation a cutoff may occur when the power supply is turned OFF e The accuracy of the tripping current is 0 3 A XIV Bi Startup Delay To prevent cutoffs caused by large surge currents when the equipment starts the S8M has a startup delay that disables the tripping operation for 70 ms after the semiconductor relay turns ON e The startup delay will not operate when a relay or other device is used for ON OFF control on the output side of the S8M so a tripping operation may occasionally occur B Withstand Voltage Test The S8M is designed to withstand 500 VAC for 1 minute between the power input terminals and all branch output terminals between all signal output terminals and all external tripping input terminals between all signal output terminals and all communications terminals and between all external tripping input terminals and all communications terminals Note e The S8M may possibly be damaged from the impulse voltage if a testing device switch is used to abruptly apply or shut off 500 VAC Increase the applied voltage gradually using the voltage adjustment on the testing device e Always short the specified terminals so that the voltage is applied to all of the terminals at the same time e The power input terminals and branch ou
23. etc the UL Class 2 output model has a cutoff circuit that detects only overcurrents of 4 0 A or higher and cuts off the output S8M CP04 Model without Communications Current detec Cutoff tion resistor circuit Fuse V Thermal fuse nis E Voltage Display Switches Temperature DC branch output 1 detection circuit detection E icc iting circuit Power supply A Current detec Cutoff Processing tion resistor circuit DC input power supply circuit Thermal fuse erbe ae E DC branch output 2 a O M Current lim s Current detec Cutoff Th T tion resistor circuit ermal fuse o Tripping alarm TBI i pA i saN DC branch output 3 arm N o Ez Gi Current lim dad iting circuit Over temperature output o TMP at Current detec Cutoff External tripping input o tion resistor circuit TRG o HESS Thermal fuse DEP DC branch output 4 E nn urrent lim iting circuit This model has the same basic functions and configuration as the standard model but does not have an RS 232C port so it cannot connect to the Sup port Tool 17 Specifications Section 2 3 2 3 Specifications Ratings and Characteristics Item Model S8M CP04 S8M CP04 R S8M CP04 RS I O char Rated input voltage 24 VDC 19 2 to 26 4 VDC acteristics Allowable input current 17 0 A max 16 0 A max Maximum shutoff output current per 4 0A 3 8A branch Inter
24. 0072 External tripping input cutoff for branch output 3 0073 External tripping input cutoff for branch output 4 Number of Elements The number of elements is expressed in 2 byte hexadecimal There are rela tively few variables in the S8M and the setting range for the number of ele ments is O to 13 so that all of the monitored values can be accessed together List of Services Read Variable Area This service reads from variable areas Write Variable Area This service writes to variable areas EMIL Read Controller Attributes This service reads the model number and communications buffer size sp Read Controller Status This service reads the operating status Echoback Test This service performs an echoback test CN Operation Command This service performs operations such as reset Note No commands services will be accepted and no responses will be returned when a memory error RAM error has occurred 7 3 Details of Services Read Variable Area This service reads data from a variable area m Service Request PDU MRC SRC Variable Read Start Bit Number of Type Address Position Elements m Service Response PDU MRC SRC Response Code Read Data for number of elements 110 1 2 2 4 0 to 40 1 Variable Type and Read Start Address The definitions are different for each product 2 Bit Position The S8M does not support bit access Fixed to 00 109 Details of Services Section 7 3 3 Num
25. 1 Command Frame Structure 101 7 2 2 Response Frame Structure 102 75229 PUN S nl StruClure cor250pE 240922560 30532 o Sade 0 Sede E 105 3 JDetarllS OL SELVICES aros on eee Sar e on add ween a Ake un ates eet 109 7 4 Read Controller Information 112 7 3 Read Controller Attributes vae ok eae be ee eee ee E 114 To Read Controller Status 2 ss sd ad oe eee Eh ee Od ok esas mee 115 Jer wenoback I68Ls dae nee SOS dee Coat a kere eee cuca eb vdd ueni qa 116 778 Operation Command III pog RA Ree SERA eon oi vd 117 79 Response Codo bist od iw oon eee ed tte or a emo de a Sed 118 7210 ASCU ist n 5 see ie Pas beta Ros QE repa qute senec do oed end seca ied 119 99 Compo Way F Communications Specifications Section 7 1 7 1 CompoWay F Communications Specifications Connecting to the Network Communications Specifications 100 The S8M CP04 R and S8M CP04 RS are equipped with RS 232C ports which allow remote monitoring and remote operations over the network such as setting parameters supplying power from outputs cutting off outputs and resetting the run time RS 232C cable 0000 eee NE Refer to 3 4 RS 232C Port Wiring S8M CP04 R and S8M CP04 RS Only for details on assembling and connecting a RS 232C cable Connection configuration 1 1 connection 4 800 or 9 600 bps Default value 9 600 bps 7 or 8 bits D
26. 71 Special Settings and Communications Settings LC L OOOO 4 Switch to the cur rent tripping value setting for branch output 1 A kh C sS E NNNM M V A kh C s On Return to CLR display Section 4 8 Press the Key to display the run time clear setting The setting can be changed by pressing the or Key No Do not clear the run time Yes Clear the run time Change the setting with the or amp Key The S8M will automatically return to the CLR display if no key is pressed within 3 s When the cj Key is pressed the setting will flash and the setting will be read when the flashing stops If yes was selected the run time will be cleared and the S8M will return to CLR display If you want to confirm that the run time was cleared read the run time in Run Mode If the Down Key E is pressed from the CLR display the display will switch to the current tripping value setting C V for branch output 1 72 SECTION 5 Trial Operation to Actual Operation A connection test can be performed on each branch output in Test Mode After installing the S8M wiring and setting the parameters the connection test can be used to test operation before actual operation When the S8M is shipped from the factory all branch outputs are disconnected The branch outputs that are being used must be connected in Test Mode SS VOM seo oe ur Rb AU or Eod an ast india ar basado rta necs ae ono ae EEA 74 5
27. 9 and amp Keys simultaneously for 3 seconds again For details on setting parameters in Setting Mode refer to 4 6 Individual Branch Output Settings 55 Individual Branch Output Settings Section 4 6 4 6 Individual Branch Output Settings This section shows the displays and operations when setting parameters in Setting Mode in protection level 0 If the protection level is set to level 1 or 2 some parameters will not be displayed or will be read only For details see page 48 Setting the Current Tripping Value C V Cutoff Value The initial Setting Mode display C V is used to set the current tripping value for branch output 1 Go to page 57 for settings other than the current tripping value Press the Key to display the set value of the branch output 1 current tripping value The S8M will automatically return to the C V display if no key is pressed within 3 s The set value can be changed by pressing the and Zi Keys see note The setting range is 0 5 to 4 0 A 0 1 A units for the S8M CP04 CP04 R and 0 5 to 3 8 A 0 1 A units for the S8M CP04 RS Note Ifthe Or Key is pressed for more than 2 s the SV will change in 1 0 A units instead of 0 1 A units When the Key is pressed the SV display will flash When the flashing stops the new SV will be saved and the S8M will return to C V display G If you want to confirm the new setting press the Key again from the C V display
28. Alarm Output ALM will go OFF within 100 ms The error display and Alarm Output can be reset when the voltage has been below the alarm value 0 3 V for 500 ms or more Undervoltage Alarm An overvoltage alarm value can be set between 18 0 and 26 4 V Setting Default Operation Seven Conditions range value segment required to display reset 18 0 to 20 0V When the voltage is Alternately The Alarm Voltage 26 4 V lower than the alarm displays Output above the value continuously for error code _ ALM is alarm value 80 ms or more the A21 and the turned OFF 0 3 V contin alarm is output within voltage uously for at 100 ms least 500 ms B Operation e When a voltage below the alarm value is applied the seven segment dis play will show error code A21 and the Alarm Output ALM will go OFF within 100 ms The error display and Alarm Output can be reset when the voltage has been above the alarm value 0 3 V for 500 ms or more 27 Basic Function Details Section 2 4 Power supply voltage V U 0 3 V V U Undervoltage alarm value i I ME ke 4 100 ms Error display and Alarm Output ALM Reset possible Undervoltage alarm value Power supply voltage Branch output current I Branch output voltage Alarm Output ON GEF ON ALM Reset signal l 3 s min 2 4 3 Over temperature Output When the tempera
29. Names and Functions Component Names 4 Output Terminals 5 External Tripping Input Terminal 1 Power Input Terminals 6 Seven segment Display 12 RS 232C Port Terminal Block The S8M CP04 is not equipped l with an RS 232C port 7 Indicators 8 Mode Key 9 Up Key 11 Reset Key 10 Down Key 3 Status Indicators 2 Branch Output Terminals Class2OUTPUTDC24V 38A 1 Power Input Terminal Block V and V Connect to the 24 VDC input power supply The terminal screws are M4 2 Branch Output Terminal Block V and V Connect to each branch output The terminal screws are M3 5 3 Status Indicators Red or Green Indicate the connection and cutoff status for each branch output Not connected Set to OFF disconnected or forcibly cut off by com Connected normaly Flashing Not connected In the startup sequence and waiting for connection green Cut off Cut off due to an error Flashing red Cut off Cut off by the redundant protection circuit required for a UL Class 2 output S8M CP04 RS only 4 External Output Terminals and 5 External Tripping Input Terminal TRP ALM TMP TRG 4 TRP Tripping Alarm OFF to indicate when an abnor Output mal voltage or current was quom spo loose XC d Oo O0 O0 O0 O0 O0 O00 Wire hole E L E E 3EEE SE ALM Alarm Output OFF to indicate that the input volt Release button age current or run time exceeded When removing a the
30. OFF if the temperature exceeds the set value Setting Mode can be used to set the various parameters but the S8M con nects to branch outputs in Setting Mode just as it does in Run Mode When an error is detected branch outputs will be cut off and external signals will be output just as they are in Run Mode Note f an error occurs in Setting Mode the error code is not displayed and the error cannot be reset To reset the error first switch the op erating mode to Run Mode and then reset the error In Test Mode each branch output can be set to ON or OFF connected or dis connected In addition the operation of the startup sequence and shutdown sequence can be verified The output connection status does not change when the operating mode is switched from Run Mode to Test Mode e f a branch output is OFF disconnected in Test Mode it will not go ON even when the operating mode is changed to Run Mode If you want to set unused branch outputs to OFF set those outputs to OFF in Test Mode before switching to Run Mode e f the power is turned OFF while the S8M is in Test Mode the S8M will start in Test Mode the next time that the power is turned ON Note When an error occurs in Test Mode branch outputs will be cut off and external signals will be output just as they are in Run Mode On the other hand the error code will not be displayed and the error cannot be reset To reset the error first switch the operating mode to R
31. ON 77 Run Mode Section 5 4 5 4 Run Mode Switch to Run Mode after making connection settings and testing operation in Test Mode When Run Mode is entered from Test Mode the initial status of the branch outputs will be set In Run Mode the present current and peak out put current can be read out for branch outputs 1 to 4 along with the total cur rent run time and internal temperature The peak output currents can also be cleared Moving from Test Mode to Run Mode Press the Up Key 1 and Down Key JIA E2 simultaneously for at least 3 s The display will return to the Mode Selection Menu Press the Up Key amp twice to dis play RUN and then press the Mode Key to change to Run Mode If no keys are pressed within 5 s the S8M will automatically return to the last operating mode When Run Mode is entered one of the following will be displayed input voltage current run time or internal temperature 78 Run Mode Section 5 4 Operations in Run In Run Mode the input voltage the present current and peak output current Mode for branch outputs 1 to 4 the total current the run time and the internal tem perature can be monitored regardless of the protection level The peak output currents can also be cleared The display can be changed in the order shown in the following table by pressing the Up Key zj or Down Key 8 Display c 2 s 4 v A w s finputvotage o o o o e o o o o
32. Operation he startup sequence s operation can also be verified from the Support Tool by clicking the Startup Sequence Button For details refer to page 94 Note The startup sequence functions in the following processes Connecting when power is turned ON Reconnecting during a reset operation e Startup sequence executed by CompoWay F command Startup Sequence e Simultaneous connection of all outputs in Test Mode e Startup sequence executed from the Support Tool 2 6 Shutdown Sequence Function When the S8M s input power supply is turned OFF all of the branch outputs are turned OFF disconnected simultaneously On the other hand when the branch outputs are cut off by the external tripping input or communications a time delay see note 1 can be applied between the branch output disconnec tions Note 1 The time delay can be set between 0 0 and 99 9 s If the delay is set to 0 0 s the startup sequence will not operate and the branch output will be cut off immediately 2 The shutdown sequence is designed for the four branch outputs on one S8M It does not provide time synchronization between outputs on more than one S8M External tripping input YA LI Branch output 1 voltage Setting time Branch output 2 voltage l Setting time Branch output 3 voltage lt 4 Setting time Branch output 4 voltage Setting time I Within 20 ms 1 3l
33. Support Tool The download operation must be executed to write the pa rameters to the S8M 2 When the parameters are downloaded the S8M performs power ON ini tialization and starts in Run Mode Branch outputs that were connected will be reconnected according to the pattern set with the startup se quence and all of the new parameters will be effective at this time Immediately afterward the software prompts the user to connect all branch outputs If the OK Button is clicked the cut off branch outputs will be connected according to the pattern set with the startup sequence 3 To read the parameters from the S8M execute the Upload operation 2 When Download is selected the following popup window will open If a window indicating a failure appears instead of this confirmation win dow does not appear check for a problem with the connection to the 58M or incorrect communications settings Check the cable and communica tions settings For details on checking the communications settings refer to 6 5 Other Settings 58M Support Tool xj 9 The 58H will be reset when data is downloaded to it Continue 3 Click the Yes Button to start the download If the parameters were written normally the following popup window will be displayed prompting you to connect all of the branch outputs Click the Yes Button to start con necting 9 All branch outputs will be connected If a startup sequence has been Continue set the
34. alarm value Transistor OFF wire press here to me release the lock TMP Over tempera OFF to indicate that the tempera ture Output ture exceeded the over tempera ture output value Transistor OFF 5 TRG External Tripping Can be used to send an input sig Input nal from an external device to cut off a branch output Red 6 Seven segment Display Red Displays measured values or set values on a 3 digit LED display 14 Component Names and Functions Section 2 1 7 Indicators Orange 1 2 3 4 V A kh s OUUU LILIEILILI 1to 4 An indicator will light or flash when the dis play is related to the corresponding branch Ld output Ld Branch output indicators Unit indicators Lit when displaying the input voltage A Lit when displaying the output current Flashes when displaying the peak output current kh Lit when displaying the run time The seven segment display shows the time in 0 1 kh 100 h units Lit when displaying the temperature S Lit when setting the startup sequence time or shutdown sequence time Mode Key Used to set the parameter being displayed clear the peak hold current value and register settings Up Key Used to move to different setting modes or to increment a set value 10 Down Key Used to move to different setting modes or to decrement WEN 11 Reset Key Used to clear an alarm output or connect a branch out put that was cut off by an error or external trippi
35. branch outputs will be con nected according to the pattern set with the startup sequence 4 lf the outputs are connected after the download the following popup win dow will be displayed to indicate that the download was completed suc cessfully S8M Support Tool E Download completed Click the OK Button 1 Parameters can be downloaded to the S8M when it is in Run Mode or Test Mode The S8M s operating mode will not change after the down load 2 If the communications settings are changed by downloading parameters a communications error will occur when the S8M attempts to communi cate after the OK Button is clicked at the A branch outputs will be con nected Continue prompt To prevent this error click the No Button at the All branch outputs will be connected Continue prompt change the com puter COM port s settings to match the S8M s new communications set tings open the Present Value Window and click the Startup Sequence Button to connect all of the branch outputs 3 The operating mode will change to Run Mode after the download Setting and Saving Parameters Section 6 3 Uploading the Parameters 1 2 3 Note 1 This operation reads the S8M s parameters from the S8M to the Support Tool Connect the S8M and computer with the RS 232C cable Support Tool Cless2OUTPUTDC24V 38A Select Communications Upload 58M Support Tool File Edit Communica
36. connection ra Oo Monitor Status Close Monitor Status Button Window item Peak output current clear buttons Connect output buttons Disconnect output buttons Startup Sequence Button Shutdown Sequence Button Reset Button Close Button Description Input voltage V Displays the present input voltage Branch Branch output Displays the present current being supplied at the branch output current A output Peak output Displays the peak output current that was supplied at the current A branch output Total current A Displays the total current being supplied to branch out puts 1 to 4 Internal temperature C Displays the present internal temperature Monitoring Section 6 4 Window item Description Run time kh Displays the run time The run time cannot be reset from the Support Tool Current connection status Displays the connection status Connected Cut off by an operation or external signal Cut off due to an error The indicator will also be red when simultaneously cut off by an exter nal operation Peak output current clear Clears the peak output current value Connect branch output Connects the branch output An output cannot be connected while the external trip ping input is ON or there is an abnormal current or voltage Disconnect branch output Disconnects the output Startup Sequence Connects the branch outputs in the pattern set with the startup sequenc
37. dis play if no key is pressed within 3 s When the Key is pressed the setting will flash When the flashing stops the new setting will be saved and the S8M will return to UNO display If you want to confirm the new setting press the Return to UNO display Key again from the UNO display If the Down Key is pressed from the UNO display the display will switch to the baud rate setting display BPS Baud Rate BPS Bits Per Second The baud rate setting display BPS will be displayed if the Down Key is pressed from the unit number setting display UNO This parameter sets the RS 232C port s baud rate to 4 800 bps or 9 600 bps 67 Special Settings and Communications Settings Section 4 8 Switch to the Press the 2 Key to display the baud rate setting data length The setting can be changed by pressing the zi or setting Key qo OOOO 96 9 600 bps ONE A kh C S 48 4 800 bps Change the setting with the N or Key The S8M will automatically return to the BPS dis play if no key is pressed within 3 s ve mds S When the Key is pressed the setting will flash When the flashing stops the new setting will be saved and the S8M will return to the BPS display If you want to confirm the new setting press the Return to BPS display Key again from the BPS display If the Down Key amp is pressed from the BPS display the dis play will switc
38. electric shock during operation may occasionally occur Always attach the terminal cover when using the S8M e Minor fire may possibly occur Ensure that input and output terminals are wired correctly e Increases in the temperature of internal parts resulting from heating of wiring materials may result in deterioration or damage to internal parts Use wiring materials suitable to the current being used The following wiring materials torque and strip length are recommended to prevent heating and possible fires in wiring materials AI 92 05 dps Recommended Wire Types Wiring materials Teque Sthiplengh Power input terminals AWG14 2 081 mm x 2 Solid 1 08 N m 9 6 in Ib 8 to 10 mm Stranded Branch output terminals AWG16 to 20 0 8 to 1 0 N m 7 2 to 8 8 in Ib 6 to 7 mm RI Awos mni mE Other terminals AWG18 to 26 MT eniem It is conceivable that internal parts may be deteriorated or damaged Do not repeatedly perform tripping or recovery operations more than necessary e Do not apply more than 100 N force to the terminal block when tightening screws e Be sure to remove the sheet covering the Product for machining before power ON so that it does not interfere with heat dissipation e The S8M takes a DC power input Do not connect AC power to the power input terminals xii E Derating Curve The temperature range within which the S8M can be used is restricted by the maximum current that normally flows for any
39. have been elimi nated After resetting the error a large current may have flowed again The S8M continues adding to the run time The run time must be reset to O in order to clear the alarm Initializing parameters returns all settings to their default val ues To ensure safety all out puts are disconnected by default 8 2 Seven segment Error Codes Error Display List Seven segment Error display code These are S8M system errors FS Em Clear the peak output current using the operation provided Thereafter the peak output current during normal opera tion will be recorded 79 93 136 30 64 22 125 62 71 125 53 98 133 Either change the abnormal current tripping type from instantaneous to standard or increase the current tripping value Connect the devices to differ ent branch outputs and use the S8M s startup sequence to offset the connections to the devices Press the Reset Key for at least 3 s RST should be displayed and the cut off out put can be reset after 15 sec onds have passed since the cutoff Eliminate the problem that caused the cutoff and press the Reset Key for at least 3 s Clear the run time and then press the Reset Key for at least 3 s The alarm can also be cleared by increasing the run time value and then resetting The S8M will be in Setting Mode after initializing the parameters Change to Test Mode and connect the required branch
40. in the following table Applicableuser Access System administrator All parameters can be read and changed Level 1 Supervisor Only operational settings related to voltage and current can be read and changed Level 2 General staff A limited number of parameters can be read No parameters can be changed The default protection level is level 1 When the parameters are initialized the protection level is set to level 1 The factory default protection level is level 1 so the protection level must be changed in order to switch to level 0 Use the following procedure to change the protection level Display the Mode Selection Menu and press the Up Key zj or Down Key until the protection level display PRT appears Press the Mode Key The S8M will automatically return to Setting Mode or Run Mode see note if no key is pressed within 5 s LV1 will be displayed The present protection level is level 1 the default value so press the Down Key B to change to level 0 If the Mode Key is pressed the LVO display will flash When the dis play stops flashing the protection level will be switched to level O and the S8M will return to Setting Mode Note Ifthe S8M has been turned ON for the first time it will return to Set ting Mode If the S8M has been in Run Mode before it will return to Run Mode Switching to Setting Mode Section 4 5 4 5 Switching to Setting Mode A newly
41. not cut off mechanically in the S8M Each branch output is 2 connected cut off by a high capacity FET transistor Setting Mode This operating mode is used to set the parameters A new S8M automatically 9 51 starts in Setting Mode when it is turned ON for the first time shutdown sequence When outputs are cut off by the external tripping signal the shutdown 31 65 sequence can set a separate delay for cutting off each branch output standard detection alarm Each branch output s tripping current and abnormal current can be detected type and tripping type with standard detection tripping within 100 ms or instantaneous detection tripping within 20 ms With standard detection the output will be cut off or the alarm will be output within 100 ms if the current is higher than the set value continuously for 80 ms or longer startup delay Tripping operation can be disabled for 70 ms when the power is turned ON in order to prevent the inrush current from being detected as an abnormal current and cutting off operation The peak output current value will still be updated during the startup delay startup sequence The startup sequence can set a separate delay for the connection of power to each branch output This function can reduce the inrush current and voltage drop that occur when the power is turned ON Support Tool The Support Tool can be used to set save the S8M s various parameters mon itor operation and force outputs ON and OFF Th
42. of elements specified in the service request the error is processed as a number of elements data mismatch error If the Write Start Address is outside of the variable area the write operation will not be performed but the processing will end in normal completion The same thing will happen if the Write End Address is outside of the variable area See the following examples e n this case the number of elements 2 is within the specified range but the Write Start Address setting is incorrect Address Variable area Write Start Address gt lt Last address Write End Address gt 111 Read Controller Information Section 7 4 n this case the Write Start Address setting is correct but the number of elements 3 exceeds the specified range Address Variable area Write Start Address gt lt Last address Write End Address gt Note The system checks whether the number of elements is within the specified range when it performs the number of elements data mis match check See the following examples Number of Elements Data A number of elements data mismatch error will occur in the following situa Mismatch tions The data will not be written when this error occurs In this case the Write Start Address setting is correct and the amount of write data 2 is within the specified range but the number of elements 4 exceeds the specified range Address Variab
43. outputs Probable cause and remedy E97 ET EEPROM read error When one of these error codes is displayed contact an OMRON rep E95 E96 EEPROM write error resentative regarding the error rr pm J Li a E94 A D conversion error 123 Seven segment Error Codes Section 8 2 Seven segment Error Probable cause and remedy display code There is an error in the parameter Press the Mode Key to switch to settings the parameter initialization dis play After initializing the parame ters set them again E10 Data other than com munications data is corrupted A10 Abnormal voltage trip The power supply voltage Check the power supply voltage ping exceeded 28 8 V Abnormal current trip The branch output s current ping exceeded the current tripping value alil cad alarm The input voltage exceeded the Check the power supply voltage overvoltage alarm value and the set value ee alarm The input voltage dropped below the undervoltage alarm value Overcurrent alarm The branch output s current Check whether an excessive load Check whether the connected device is correct and check whether the set value is appropri ate exceeded the overcurrent alarm is connected and check whether value the set value is appropriate Run time alarm The run time exceeded the run Reset the run time If the run time time value alarm is not needed set the alarm value to 0 0 Over temperature out
44. power supply 2 4 2 Overvoltage Undervoltage Protection Function Abnormal Voltage Trippin Note 26 When the input power supply voltage exceeds 28 8 V see note all of the branch outputs will be cut off and the seven segment display will indicate error code A10 It is not necessary for the user to set any parameters for this func tion Tripping Seven segment Conditions required operation display to reset 28 8 V min Alternately displays The Tripping Alarm Voltage below 28 5 V 20 ms max error code A10 and Output TRP is and 15 s elapsed the voltage turned OFF after output is cut off The voltage is measured at the power input terminals Basic Function Details Section 2 4 Overvoltage Alarm An overvoltage alarm value can be set between 20 0 and 28 8 V Setting Default Operation Seven Conditions range value segment required to display reset 20 0to 28 8V When the voltage is Alternately The Alarm Voltage below 28 8 V higher than the alarm displays Output the alarm value continuously error code ALM is value 0 3 V for 80 ms or more A20 and the turned continuously the alarm is output voltage OFF for at least within 100 ms 900 ms B Operation V O Overvoltage alarm value V O 0 3 V Power supply voltage 500 ms Error display and Alarm Output ALM e When a voltage exceeding the alarm value is applied the seven segment display will show error code A20 and the
45. protection level 1 or 2 136 Revision History A manual revision code appears as a suffix to the catalog number on the front cover of the manual Cat No Z241 E1 01 Revision code The following table outlines the changes made to the manual during each revision Page numbers refer to the previous version Revision code Date Revised content April 2006 Original production 137 Revision History 138 OMRON Corporation Control Devices Division H Q Shiokoji Horikawa Shimogyo ku Kyoto 600 8530 Japan Tel 81 75 344 7109 Fax 81 75 344 7149 Regional Headquarters OMRON EUROPE B V Wegalaan 67 69 NL 2132 JD Hoofddorp The Netherlands Tel 31 2356 81 300 Fax 31 2356 81 388 OMRON ELECTRONICS LLC 1 East Commerce Drive Schaumburg IL 60173 U S A Tel 1 847 843 7900 Fax 1 847 843 8568 OMRON ASIA PACIFIC PTE LTD 83 Clemenceau Avenue 1111 01 UE Square Singapore 239920 Tel 65 6835 301 1 Fax 65 6835 2711 OMRON CHINA CO LTD Room 2211 Bank of China Tower 200 Yin Cheng Zhong Road PuDong New Area Shanghai 200120 China Tel 86 21 5037 2222 Fax 86 21 5037 2200 Authorized Distributor Cat No Z241 E1 01 Note Specifications subject to change without notice Printed in Japan This manual is printed on 10096 recycled paper
46. the control panel For details refer to page 28 63 Special Settings and Communications Settings Section 4 8 4 8 Special Settings and Communications Settings The startup sequence setting display UPS will appear if the S8M is in protec tion level 0 and the Down Key is pressed from the over temperature out put value setting display TMP which was described at the end of 4 7 Shared Parameter Settings Setting the Startup Sequence UPS Startup Sequence The startup sequence sets the startup sequence time for each branch output The startup sequence time is the time the S8M waits before connecting each branch output Switch to the startup seguence set ting for branch output 2 Press the Key to display the startup seguence time set value SV for branch output 1 The SV can be changed by pressing the and Keys see note The setting range is 0 0 to 99 9 s 0 1 s units Note If the Gor Key is pressed for more than 2 s the SV will change in 1 0 s units instead of 0 1 s units Change the SV with the 3 and 9 Keys The S8M will automatically return to the UPS display if no key is pressed within 3 s When the Key is pressed the SV display will flash When the flashing stops the new setting will be saved and the S8M will return to UPS display If you want to confirm the new setting press the Key again from the UPS display Press the Key to switch to the startup sequence Return to UPS dis
47. time when using a backup device B Terminal Block Plating The tripping alarm output alarm output over temperature output and external tripping input terminals as well as the connecting sections of the communications terminals are gold plated If connection failures occur we recommend making connections with the wires made from the same material XVI Using this Manual B Notation in this Manual There are three models of S8M Digital Multicircuit Protectors covered in this manual the S8M CP04 model without an RS 232C port S8M CP04 R and S8M CP04 RS UL Class 2 output model These are collec tively referred to as the S8M The functions and specifications described in this manual are shared by all three models unless differences are mentioned specifically E Notation of Setting Data Setting data codes and contents are displayed in seven segment display characters as shown in the following diagram xvii xviii SECTION 1 Features and Functions This section describes the features and functions of the S8M 1 1 Overview of Features and Functions 1 2 S8M Operations and Operating Modes 7 ly Table ot Basic PUHCHOllss um erar ES aeons LE P Rs EE WE ees 10 l 4 S8M Operating Procedure 11 Overview of Features and Functions Section 1 1 1 1 Overview of Features and Functions Connection and Tripping Operations Using Semiconductor Relays T
48. until all of the branch output indicators are flashing Press the Up Key R or Down Key until branch DNS T output indicators 1 to 4 are flashing Press the Down Key until branch output indicators 1 to 4 are flashing which indicates that the S8M is Flashing ready to simultaneously cut off all of the branch outputs Lit In this example all of the branch outputs are connected If the Mode Key is pressed the S8M starts cutting off the outputs simultaneously and the outputs will be cut off in the pattern specified in the shutdown sequence if the shutdown sequence has been set Flashing All of the status indicators are OFF When checking the startup sequence s operation press i the Down Key to switch to the flashing on display If the Mode Key is pressed the S8M starts con necting the outputs simultaneously and the outputs will be connected in the pattern specified in the startup sequence if the startup sequence has been set All of the status indicators are OFF When the S8M returns to Run Mode after completing the test press the Up Key A and Down Key simultaneously for at least 3 s The display will return to the Mode Selection Menu s TST display If no keys are pressed for 5 s the S8M will automatically return to the last operating mode If the S8M is turned OFF in Test Mode it will restart in Test Mode the next time that the power is turned
49. value setting display TMP This parameter sets the over temperature output value E Switch to the startup sequence set ting Press the 2 Key to display the over temperature output value SV The SV can be changed by pressing the z and amp Keys see note The setting range is 25 C to 80 C Change the SV with the amp and B Keys see note The S8M will automatically return to the TMP dis play if no key is pressed within 3 s Note lf the 5 or Key is pressed for more than 2 s the SV will change in 10 C units instead of 1 C units When the Key is pressed the SV display will flash When the flashing stops the new setting will be saved and the S8M will return to TMP display If you want to confirm the new setting press the Return to TMP display Key again from the TMP display Note 1 If the temperature exceeds the SV for more than 1 s the over tempera ture output TMP will be turned OFF and the seven segment display will alternate between error code A30 and the measured temperature 2 The error display and over temperature output are reset automatically af ter the temperature falls and remains below the set value 3 C for more than 5 s 3 The over temperature output TMP operates independently of the other external outputs This output can be received as a normally closed output and used to start an exhaust fan or air conditioner to reduce the temper ature in
50. 1 S8M Relationship between The internal temperature of the S8M is displayed This is not necessarily the Control Panel same as the ambient temperature of the S8M or the temperature inside the ind deeds control panel The difference between the internal temperature of the S8M and the ambient temperature depends on the current flowing through the 58M Consider this difference in the application The following graph provides reference information on the displayed internal temperature and the ambient temperature Conditions The same current was output from all branch outputs in a con stant temperature bath held at a constant temperature At 0 5 A uaaa ALO 5 A Ambient temperature C O1 eo Displayed temperature C 29 Startup Sequence Function Section 2 5 2 4 4 Run Time Alarm An alarm can be output when the run time exceeds the alarm value Setting Default Operation Seven Conditions range value segment required to display reset An alarm is out Alternately dis The Alarm Either set a 99 9 kh See put when the run plays error Output higher alarm time exceeds the code A23 and ALM is value or clear alarm value the run time turned OFF the run time Note An alarm will not be output when the alarm value is set to 0 0 kh Set the alarm value to 0 0 kh default value when the run time alarm is not needed Refer to page 71 for details on clearing the run time 2 5 Startup Sequ
51. 1 to 4 Shutdown sequence Overvoltage alarm value Applies to l LI Hn branch Run time value h af outputs 1 to 4 External tripping input Applies to branch outputs 1 to 4 Over temperature output value Baud rate Clear run time See note Data length fhe y LE L oL P Stop bits Lh 2 UE LE Ln LX Parity Send wait time 134 Appendix B Power ON after being in Run Mode Mode Selection Menu Select Run Mode Run Mode Restart after Power OFF in Test Mode Test Mode ALIS Press for 3 s gt Select Test Mode See note 1 Protection level protection level Initialize parameters See note 2 Initialize parameters See note 2 Note 1 The TST display does not appear in protection level 2 Note 2 The INI display does not appear in protection level 1 or 2 n Setting the Parameters Display set value By change set value Save set value The display flashes the setting is saved and the original display returns Key Key Key Transition when S8M is in protection level 0 y O Key Press for 3 s ELLEELLE 4 No keys pressed for 5 s When the S8M is in protection level 0 all of the settable items will be displayed in Setting Mode When the S8M is in protection level 1 or 2 only the items in the will be displayed The CLR
52. 2 Connection Disconnection Test 76 3 9 Checking Sequence Operation 4 ino ove hee ee C EER E RR e 77 Ssd AU Aaaa 78 73 Test Mode 5 1 Test Mode Precautions when Checking Operation Setting the Branch Outputs That Will Be Used Errors Occurring During the Connection Test Switching to Test Mode Note 74 Section 5 1 Each branch output s connection status can be checked and the outputs can be connected manually in Test Mode before starting actual operation of the equipment The S8M must be set to protection level O or 1 in order to switch to Test Mode It is not possible to switch to Test Mode when the S8M is set to protection level 2 Before checking operation in Test Mode always verify that it is safe to do so and will not adversely affect the system When the S8M is shipped from the factory all branch outputs are discon nected so the outputs will not start connecting when the power is first turned ON After setting the parameters in Setting Mode switch to Test Mode connect the branch outputs that will be used and then switch to Run Mode The settings will not be saved if the power is turned OFF while the S8M is still in Test Mode The S8M will restart in Test Mode and all branch out puts will be disconnected e f any branch outputs are disconnected when the S8M is switched from Test Mode to Run Mode those outputs will remain disconnected When an error o
53. INS Take the alarm signal from the Alarm Out Detect a drop in In Setting Mode set the undervoltage alarm value V U Take the alarm signal 61 40 power supply volt from the Alarm Output ALM terminal When an overvoltage is detected the age seven segment display will show error code A21 and the ALM output will go OFF Apply a separate In Setting Mode set the startup sequence UPS 64 30 time lag when con necting each branch output Apply a separate In Setting Mode set the shutdown sequence DWS and enable the External Trip 65 66 31 time lag when cutting ping Input TRG off each branch out put Perform a system In Setting Mode set the desired run time TIM Take the alarm signal from the 71 30 41 inspection after a Alarm Output ALM terminal When the preset run time is reached the seven seg fixed run time ment display will show error code A23 and the ALM output will go OFF Reset the run time In Setting Mode select the Clear Run Time command CLR Monitor temperature In Setting Mode set the over temperature output value TMP Take the signal from 61 28 41 rise in control panel the Over temperature Output TMP terminal and use that signal to operate a fan or and prevent over air conditioner heating Select the protection level setting PRT from the Mode Selection Menu and set the 54 desired protection level Restrict read write access of parame To achieve this extra current capa
54. M is set to stan dard detection and within 20 ms when it is set to instantaneous detection 3 The alarm is output within 100 ms when the S8M is set to standard de tection and within 20 ms when it is set to instantaneous detection 4 Run time alarms are disabled when the time parameter is set to 0 0 kh 5 The TRG signal applies only to the branch outputs for which the external tripping input is enabled For details refer to page 67 10 S8M Operating Procedure Section 1 4 1 4 S8M Operating Procedure Using the S8M Typical Startup Procedure Using the S8M s Keys See Section 3 Installation and Wiring See Section 4 Initial Settings mE n Een E that will be used and then switch to Run Mode Verify operation Verify proper operation while monitoring status in Run Mode Note When turning ON the power setting parameters and testing operation in a new S8M the parameter Actual operation settings will be saved only when the S8M is switched to Run Mode Typical Startup Procedure Using the Support Tool Installation and wiring F See Section 3 Installation and Wiring Connect Support Tool Set parameters Always connect the branch outputs that will be used Verify operation Verify proper operation while monitoring status Actual operation See Section 6 Support Tool 11 S8M Operating Procedure Section 1 4 Summary of Application Objectives and Settings Desired object
55. Note Section 4 3 The procedure for initializing parameters is as follows Press the Mode Key from the ini tialize display INI The S8M will switch to the parameter initialization display NO will be displayed Initialization cannot be performed from this display The S8M will automatically return to Run Mode if no key is pressed within 5 S Press the Up Key A The display will change to YES The parameters will be initialized if the Mode Key is pressed from this display The S8M will automatically return to Run Mode if no key is pressed within 5 S Press the Mode Key to start ini tializing parameters INI will flash on the display while parameters are being initialized When the display stops flashing all parameters will have been initialized The operating mode will change to Setting Mode and the abnormal volt age tripping value will be displayed for branch output 1 After the parameters have been initialized the default settings will be in effect and the initial power ON status will be used The operating mode will be Setting Mode All branch outputs will be disconnected e Protection level 1 will be used 53 Changing the Protection Level Section 4 4 4 4 Changing the Protection Level Operations Restricted in the Protection Levels Procedure 54 The protection level function can restrict parameter read write access to one of three levels as shown
56. OMRON shall not be responsible for the user s programming of a programmable product or any consequence thereof 1X Disclaimers CHANGE IN SPECIFICATIONS Product specifications and accessories may be changed at any time based on improvements and other reasons It is our practice to change model numbers when published ratings or features are changed or when significant construction changes are made However some specifications of the products may be changed without any notice When in doubt special model numbers may be assigned to fix or establish key specifications for your application on your request Please consult with your OMRON representative at any time to confirm actual specifications of purchased products DIMENSIONS AND WEIGHTS Dimensions and weights are nominal and are not to be used for manufacturing purposes even when tolerances are shown PERFORMANCE DATA Performance data given in this manual is provided as a guide for the user in determining suitability and does not constitute a warranty It may represent the result of OMRON s test conditions and the users must correlate it to actual application requirements Actual performance is subject to the OMRON Warranty and Limitations of Liability ERRORS AND OMISSIONS The information in this document has been carefully checked and is believed to be accurate however no responsibility is assumed for clerical typographical or proofreading errors or omissions Safety Pr
57. Output Settings Tab Page Parameter Setings Reference Setting range Default value page Undervoltage alarm value 18 0t026 4V 20 0V Overvoltage alarm value 20 0 to 28 8V 28 8V Over temperature output value 25 to 80 C Runtimevalue___ _ 0 0 9 99 9Kh_ 0 0kh See note Set the parameter under each heading If a setting is outside of the allowed setting range a warning message will be displayed and the setting will not be accepted Note The alarm will not be output when the alarm value is set to 0 0 kh 87 Setting and Saving Parameters Section 6 3 Branch Output Settings Tab Page Individual Branch Output Settings WAZAMA Tool 5 XN File Edit Communications Monitor Help Comment Branch 1 Branch 2 Branch 3 Branch 4 ABER Nene pde Standard Standard Standard Standard Standard f Instant Abnormal current tripping value A saw CPO4 R 0 5 4 0 SBM CPD4 RS 0 5 3 8 Etrenstantenti eani wee Standard Standard standard Standard Standardinstant Overcurrent alarm value CA Sa CPDA R 0 5 4 0 saM CPOAJ RS 0 5 3 5 Startup sequence 51 n 0 0 0 0 c00 99 9 Shutdown sequence x og 0 0 0 0 0 0 O 0 99 9 External tripping input Enable Enable Enable Enable Enable Disable Click here to switch to the Basic Settings Tab Page Parameter Settings Reference Setting range Default value page Abnormal
58. P output A10 tripping 28 8 VDC for more than 10 ms OFF Short circuit cur 9 0 A for more than 10 ms None Individual branch TRP output A11 rent tripping output OFF S8M CP04 RS only Trips within 0 5 None Individual branch TRP output A11 Current S for current over 4 0 A See note 1 output OFF alternating Abnormal current S8M CP04 R and S8M CP04 0 5 to 4 0 A Individual branch TRP output A11 Current tripping in 0 1 A units output OFF alternating See note 2 S8M CP04 RS 0 5 to 3 8 A in 0 1 A units Overvoltage alarm 20 0 to 28 8 VDC in 0 1 V units None ALM output A20 Voltage OFF alternating Undervoltage alarm 18 0 to 26 4 VDC in 0 1 V units None A21 Voltage alternating Overcurrent alarm S8M CP04 R and S8M CP04 0 5 to 4 0 A None ALM output A22 Current See note 3 in 0 1 A units OFF alternating S8M CP04 RS 0 5 to 3 8 A in 0 1 A units Run time 0 0 to 99 9 kh None ALM output A23 Time 99 900 hours 211 4 years see note 4 OFF alternating Over temperature 25 to 80 C None TMP output A30 Temper output Set value 1 C for 1 s continuously OFF ature alter a External tripping External input signal TRG ON Specified output See note 5 E e input Support Tool Click the Connect Output Buttons for the desired outputs in the Present Values Window Note There are redundant overcurrent protection functions in the S8M CP04 HS 2 The tripping function operates within 100 ms when the S8
59. S mini command text BCC BCC calculation range This code 02 hex indicates the beginning of a communica tions frame text This code must always be set as the first byte When another STX code is received during reception the reception starts again from the point where the STX was received Node No The node address identifies the destination node Node address The node address can be set to 00 to 32 There will be no response to a transmission with an invalid node address Subaddress The subaddress is not used in the S8M Always set the subad dress to 00 SID Service ID The SID is not used in the S8M Always set the SID to 0 Command text The command and required text are placed here Refer to 7 2 3 FINS mini Structure for details This code 03 hex indicates the end of text CC B This is the block check character The BCC is calculated by taking the exclusive OR of all bytes from the node number to the ETX 101 Frame Structure Section 7 2 7 2 2 Response Frame Structure m Normal Response Node No Subaddress Endcode FINS mini command text BCC jm 1 pol ag d a a2 1 d 1 2 2 2 1 1 m Response if Specified FINS Command was not Executed Node No Subaddress Endcode FINS mini command text BCC m Response for Command Frame Error Node No Subaddress End code BCC priority Normal end The command frame was processed normally with None out any of the following errors
60. The S8M s internal temperature Check for a high ambient temper put exceeded the over temperature ature and check the setting of the output value over temperature output value Take steps to reduce the temper ature in the control panel e When two or more errors occur simultaneously the higher priority error higher in the table above will be displayed e The A11 and A22 errors may occur simultaneously in two or more branch outputs In this case the corresponding branch output indicators will not be lit Clearing Errors Section 8 3 8 3 Clearing Errors Clearing Errors with the Reset Key Reset Key Lit red Clearing the Error Note When an error has occurred the error code will be displayed on the seven segment display Eliminate the cause of the error and clear the error It is possible to clear an error immediately after it occurs but once an error has been reset another reset operation cannot be performed for at least 15 seconds to protect the S8M s internal circuits Errors can be cleared reset by pressing the Reset Key on the S8M or executing a Support Tool operation The Reset Key ks can be pressed for 3 s or longer to clear an error and sup ply power to an output that was cut off The following example shows the display when branch output 1 was cut off because an abnormal current was detected If an error occurs first determine the cause of the error and eliminate the cause e Th
61. Use the following crimp termi nals on the power input wires and tighten the terminal screws to a torque of 1 08 N m 9 6 in Ib 8 mm nx Oo 8 mm max gt gt The branch output terminals have M3 5 screws Use the following crimp terminals on the branch output wires and tighten the terminal screws to a torque of 0 8 to 1 0 N m 7 2 to 8 8 in lb mm max On mm mx DT Recommended Power The following OMRON Power Supply Units are recommended as the DC Supply Units power supply for the S8M Output Selecting the Wire tional area tion UL1007 UL1015 mm wires mm 300 V 80 C 600 V 105 C 0 051 7 0 102 0 081 7 0 127 0205 110 16 0326 170 16 0517 26016 43 0 16 1309 54018 os 41026 3309 65020 leo 10 5 262 1040020 3 8 0 129 7 0 16 Cross sec Configura 30 28 26 24 22 20 18 16 14 12 10 39 Wiring Section 3 3 Voltage Drop per Meter UL1015 Heat resistant PVC Wire Wiring the Power Supply and Branch Outputs 40 Maximum Recommended Current The values listed in the table above are for bundles of up to 4 wires If 5 or more wires are bundled together reduce the max current to 80 of the listed current The following chart shows only the relationship between the voltage drop per meter and the current and wire length Be sure that the current actually being used does not exceed the max recommended current Volt
62. aces 2 Version The version is returned in 20 bytes of ASCII data If the data is less than 20 bytes long the remaining bytes will be padded with spaces 20 hex Example V1 00 The remaining 15 bytes are all spaces 3 Response Code Response code Error name Cause Error prioriy 1001 Command too long The command is too long m Normal completion No error 113 Read Controller Attributes Section 7 5 7 5 Read Controller Attributes This service reads the model number and communications buffer size m Service Request PDU MRC SRC 1 Model The first 10 bytes of ASCII data from the Read Controller Information com mand are returned A specifications code follows the model number The following table shows the model number format Model Code 4 bytes Same in all models Input voltage Code 1 byte Number of ne outputs DET 1 byte Code 1 byte RS 2320 TC i 00 YO NEWS 1 fixed UL S 2 ae Code 1 byte Code Tye Gode byte 2 Buffer Size The communications buffer size is expressed in 2 byte hexadecimal and is converted to 4 byte ASCII before being displayed 0040 Indicates 64 bytes 3 Response Code Response Cause Error priority code 1001 Command too long The command is too long 000 Normal completion No eror JO 114 Read Controller Status Section 7 6 7 6 Read Controller Status This service reads the operating status and error st
63. age drop mV in S The current shown is the al n lowed current A LA Ay air aol In actual appli cations use a 70 AI TZ Sra ae LLA AALALA ihemnaximim am AA T recommended MAY wy ALS Af E LIZA ZY AA ALLA TIZI MAA LA UL LL 0 1 0 3 05 OT 1 5 50 70 100 Current A Use a DC power supply with sufficient capacity and little voltage fluctuation i e 24 VDC 10 2096 Wiring Section 3 3 Wiring the External Outputs and External Tripping Input 24 VDC Power Supply 10 20 4 Terminal Terminal Branch output 1 Branch outpu Branch output 3 Branch output The TRP ALM and TMP outputs operate as normally closed outputs which are OFF when the power is OFF ON during normal operation and OFF when an error has occurred If you want to use these external outputs as normally open outputs invert the signals through auxiliary relays The branch output is cut off when the External Tripping Input TRG is ON connected 41 Wiring Section 3 3 42 Note External Tripping Input 24 VDC S8M Power Suppl Time delay relay PEY Slil DIULERATIS Joooo0o0000 E TIE 3 p E E 3ECECECE Press the Release Button all of the way in and insert the wire See Tripping Alarm Output internal transistor OFF when the TRP Output branch
64. al voltage exceeds the corre sponding set value UL Class 2 output An output that complies with the UL Class 2 rating undervoltage alarm When the input voltage is below the preset alarm value the alarm output ALM 27 61 is turned OFF The alarm value can be set between 18 0 and 26 4 V 131 Glossary Appendix A 132 Appendix B List of Operations Mode Selection Menu Operations Select Run Mode S8M was in Run Mode at one time Run Mode Select Setting Mode S8M was never switched to Run Mode n omi lemma Setting Mode nnnnuunuuuuuanuuuuuuuuuuunuuuum Select Test Mode See note 1 W Temm 7 H Initialize parameters See note 2 AAA No keys pressed for 5 s See note 3 See note 3 EEHEEHEEHENHEHEHEHEEHNEHEHHEEHHEHHERHRHERHENEHEHERHEEHEHEEHEEHEEEHEHEREEEEEHEHRHEEEEEHENNE S Note 1 The TST display does not appear in protection level 2 Note 2 The INI display does not appear in q Press for 3 s protection level 1 or 2 i Note 3 The display will also change if the Mode Key is not pressed to save the setting and no other key is pressed for 5 s or longer 133 List of Operations Setting Mode Setting Mode First Power ON after Purchase Settings apply to branch outputs 1 to 4 Current tripping type Overcurrent alarm value Overcurrent alarm type poc seem v Startup sequence Applies to 4 branch outputs
65. anch Output Settings Tab Pages which can be selected by clicking the corresponding tab at the bottom of the page The operations in the Parameter Setting Window can be selected from the Menu Bar E 58M Support Tool File Edit Communications Monitor Help Comment Undervottage alarm value s 20 0 18 0 25 4 Overvottage alarm value YI 90 5 20 0 28 8 Owver temperature output value oc Bu 25 80 Run time value kh 0 0 0 0 99 9 i Branch Output Settings Menu Bar Items The Support Tool settings and operations can be selected by opening the pull down menus from the Menu Bar Menu Bar p S8M Support Tool File Edit Communications Monitor Help Open File Pulldown menu DE Save Mew File Exit 85 Starting the Support Tool Section 6 2 Menu item Pulldown menu Description item Open File Opens a saved parameter file Writes the parameters in a saved file Overwrites the file Save New File Saves the parameters in a file with a different file name Exits the Support Tool Unit number Sets the communications settings for the S8M s Baud rate RS 232C port Data length Stop bits Parity Send wait time Edit Special Settings Sets the protection level Initialize Returns all of the Support Tool parameters to their default values This operation initializes the parameters in the computer but does not change the S8M s parame ter settings Communica tions COM Por
66. aracteristics when steady Current limiting by internal circuits See note 900 0 90 00000000000909 AA 20 12 Current A 0 5 3 Startup Delay Normally a large inrush current may run through the system when eguipment starts Tripping operation can be disabled for a short time after the semicon ductor relay goes ON in order to prevent this inrush current from being detected as an abnormal current and cutting off operation This temporary disabling of the tripping function is called the startup delay Power supply voltage Branch output voltage l No cutoff during startup delay even if set value is exceeded PEE E OE EA E L Tripping current Branch output value current lt Startup delay 70 ms 100 ms max standard detection Tripping Alarm Output TRP ON closed OFF open OFF open Note The startup delay disables the tripping operation for the specified period of time The inrush current during this time can be displayed as the peak output current The S8M however contains a current restricting circuit so the peak 24 Basic Function Details Section 2 4 value is not necessarily an accurate measure of the peak inrush current of the connected device Overcurrent Alarm Each branch output s current tripping value can be set between 0 5 and 4 0 A Function 0 5 to 3 8 A in the S8M CP04 RS in 0 1 A units In addition the overcurrent alarm type can be set to sta
67. arm value Switch to the run time value setting Press the Key to display the overvoltage alarm s set value SV The SV can be changed by pressing the z and amp Keys see note The setting range is 20 0 to 28 8 V 0 1 V units Note If the or Key is pressed for more than 2 s the SV will change in 1 0 V units instead of 0 1 V units Change the SV with the amp and amp Keys The S8M will automatically return to the V O dis play if no key is pressed within 3 s When the Key is pressed the SV display will flash When the flashing stops the new setting will G be saved and the S8M will return to V O display If you want to confirm the new setting press the Return to V O display Key again from the V O display Note f the voltage exceeds the SV for 80 ms the Alarm Output ALM will be turned OFF and the seven segment display will alternate between error code A20 and the measured voltage The alarm output can be cleared after the voltage falls below the SV 0 3 V for more than 500 ms 61 Shared Parameter Settings Section 4 7 Setting the Run Time Value TIM Time If the Down Key is pressed from the overvoltage alarm value setting dis play V O the display will switch to the run time value setting display TIM This parameter sets the run time value Switch to the over tempera ture output value setting Press the Key to display the run tim
68. ature and run time parameters The default setting is protection level 1 S8M Support Tool is available and can be connected to the S8M CP04 R and S8M CP04 RS The Support Tool simplifies system startup and maintenance because it allows the user to set the various parameters monitor operation save settings data and copy parameters to other S8M Multicircuit Protectors The Support Tool can be downloaded from OMRON s home page free of charge For details on the Support Tool refer to SECTION 6 Support Tool RS 232C Port FOS Sy F555 SESS aaa Wa Aaa LI y RS 232C cable User assembled S8M Support Tool kuigua SIS III S8M CP04 R S8M CP04 RS Overview of Features and Functions Section 1 1 Connecting to a The RS 232C port on the S8M CP04 R and S8M CP04 RS can be connected Network to a host computer via CompoWay F see note 1 FINS commands see note 2 can be used to perform operations over the net work such as reading settings data sending operating commands and switching setting levels Note 1 CompoWay F is one of OMRON s general purpose FA networks 2 FINS is OMRON s general purpose FA protocol RS 232C cable 1 2 SSM Operations and Operating Modes Section 1 2 1 2 S8M Operations and Operating Modes The S8M has 3 operating modes Run Mode Setting Mode and Test Mode Run Mode Branch outputs are connected while monitoring the input vol
69. atus m Service Request PDU Status 4 1 Operating Status Related Information 0 Connected 1 Cut off The connection status is shown for each output regardless of the cause of the cutoff Branch output 1 Branch output 2 Branch output 3 Branch output 4 Not used Not used Not used Not used 00 or shows the connection disconnection status listed below 2 Related Information Leading 2 bytes 0 Event occurred 1 Event did not occur Abnormal voltage trip Overvoltage alarm Undervoltage alarm Run time alarm Over temperature output Output cut off by external tripping input Not used Hardware error Last 2 bytes for the 4 branch outputs 0 Event did not occur 1 Event occurred Cutoff by hardware Abnormal current trip cutoff by software Not used Not used Overcurrent alarm Not used Not used Cutoff by HMI or communications 115 Echoback Test Section 7 7 3 Response Codes Response Cause Error code priority Command too long The command is too long i Normal completion No error 7 7 Echoback Test This service performs an echoback test m Service Request PDU 2 2 0 to 47 Test Data 2 2 4 0 to 47 1 Test Data oet values for the test data within the ranges shown below depending on the communications data length setting Data length ASCII data 20 to 7E or A1 to FE ASCII data 20 to 7E 2 Response Codes Response Cause Error code priori
70. ber of Elements Number of Processing elements 0000 The read operation is not performed read data is not appended to the service response PDU and processing ends in normal completion 0001 to 000A The read operation is performed and processing ends in nor mal completion hexadecimal display Note 1 If the Read Start Address is outside of the variable area the returned read data will all be 0 but the specified number of elements will be re turned and the processing will end in normal completion 2 If the Read Start Address is within the variable area and the Read End Address Read Start Address Number of Elements is beyond the last variable area address the read operation will be performed as long as the amount of data up to the last variable area address is within the specified range of the number of elements The read data beyond the end of the variable area will all be set to 0 See the following example Reading Two Elements and Exceeding the Last Variable Area Address In this case the second element does not exist so the read data will be AAAAOOOO Address Variable area Read Start Address gt AAAA Last address Read End Address gt m Response Codes Response Cause Error code priority 1001 Command too long The command is too long 1002 Command too short The command is too short 1101 Area type error The variable type is incorrect 110B Response too lon
71. ccurs in Test Mode or the external tripping input is turned ON the tripping operation will be executed and the appropriate external output will be turned OFF but the error code will not be displayed The errors cannot be cleared with the Reset Key When the S8M is switched to Run Mode the error code will be displayed and it will be possible to clear the error with the Reset Key After setting the parameters in Setting Mode press the Up Key A and Down Key E together for at least 3 s to switch to the Mode Selection Menu and select Test Mode Once the S8M has been switched to Run Mode it will start in either Run Mode or Test Mode see note 1 the next time that the power is turned ON so press the Up and Down Keys together for 3 s to switch to the Mode Selection Menu see note 2 1 When the S8M is turned OFF in Test Mode it will restart in Test Mode 2 If no keys are pressed for 5 s while the Mode Selection Menu is displayed the S8M will automatically switch to Run Mode Setting Mode if the S8M is being used for the first time Test Mode Section 5 1 Operations and Displavs in the Mode Selection Menu In a newly purchased S8M no branch outputs are connected so none of the status indicators is lit Flashing N All OFF not lit If the S8M is switched to the Mode Selection Menu from Run Mode RUN will be displayed on the seven seg ment display If the S8M is switched to the Mode Selec tion Menu from Se
72. city is required in the Power Supply Unit con 39 79 nected to the S8M Select a Power Supply Unit with a current capacity that is 10 to 12 A higher than the maximum current supply to the connected devices Use the total current display in Run Mode to confirm if the selected Power Supply Unit satis fies this condition ters to prevent mis taken operations Ensure normal oper ation for other devices connected to a power supply to which a device with a short circuit is con nected Prevent voltage drops due to short circuits 12 SECTION 2 Specifications and Functions This section provides the specifications of the S8M and describes special S8M functions 2 Component Names and Functions 14 2 2 Inteimal ConDHpuration esc a4 5 0 00 06 4 45 h othe kwh eo eee Bea PES 16 D3 SS PCCIICAU ONG oae cent cube ie hd oo ee eR ee eRe 18 24 Basic PunetiondDetatls q s 2er o ipto acres ate eo E Sas rtascadear eret 22 2 4 1 Current Protection Functions 22 2 4 2 Overvoltage Undervoltage Protection Function 26 2 4 3 Oversteniperature Output 28 2424 Run Tinie aile eer vauackx ete eee ni mwee tie eae ete 30 2 5 StaAMUp Sege Nee FUNCH ON us iras Rr dab dee hat ee DEAE hee aus 30 2 6 Shutdown Sequence Function 31 13 Component Names and Functions Section 2 1 2 1 Component
73. current tripping type Standard or Standard 22 instantaneous Abnormal current S8M CP04 R 0 5to4 0A tripping value S8M CP04 RS 0 5 to 3 8 A Overcurrent alarm type Standard or Standard 25 instantaneous wae Startup sequence See note 0109998 oos J Shutdown a See 2 010999s 00s 31 Note 1 The startup sequence can set delays from the point that the S8M s power is turned ON until power is supplied at each branch output 2 The shutdown sequence set delays from the point that the external trip ping input goes ON until each branch output is cut off 3 The external signal input s tripping operation can be enabled or disabled independently for each branch output 4 The setting ranges for the abnormal current tripping value and overcur rent alarm value are slightly different in the 58M models If a value that is 88 Setting and Saving Parameters Section 6 3 Saving the Parameters Note Downloading the Parameters 1 2 3 Note out of range is set it will be checked and rejected when the settings are downloaded 5 If the parameters in the S8M CP04 RS are initialized by selecting Com munication Initialize Parameters the abnormal current tripping value and overcurrent alarm value will be set to 3 8 A The same values on the computer are always set to 4 0 A when the parameters are initialized by selecting Edit Initialize with the Support Tool because the Support Tool does not di
74. display does not appear in protection level 2 List of Operations Appendix B Test Mode Select Run Mode l Q Select Setting Mode 2 3 IAIA Select Test Mode See note 1 SEE Press for 3 s Protection level Initialize parameters See note 2 FES LESE Note 1 The TST display does not appear in protection level 2 Note 2 The INI display does not appear in protection level 1 or 2 The ON OFF display and the branch output number will flash in Test Mode When ON is flashing the S8M is waiting to connect the output Press the amp Key to connect the output When OFF is flashing the S8M is waiting to disconnect the output 3 4 ta A Press the Key to disconnect the output Connecting Disconnecting All Branch Outputs Press the 2 Key to when ON is flashing to connect all outputs and check the operation of the startup sequence Press the Key to when OFF is flashing to disconnect all outputs and check the operation of the shutdown sequence VA e 135 List of Operations Appendix B Run Mode Run Mode Power ON after being in Run Mode Mode Selection Menu Select Setting iunmuumuumumuuu Mode Select Test Mode See note 1 Mr level usn ict Note 1 The TST display does not appear in protection level 2 Note 2 The INI display does not appear in
75. e Support Tool can be downloaded to a computer Windows 2000 or XP Support from OMRON s home page free of charge Tool Test Mode Each branch output can be set to ON or OFF connected or disconnected 9 74 Also the operation of the startup sequence and shutdown sequence can be verified thermal fuse If current is not cut off by the semiconductor relay alone the built in thermal 16 26 fuse will blow to protect the circuit TMP TMP is an abbreviation for the over temperature output terminal 14 41 The ALM output is turned OFF when the temperature exceeds the over tem perature output value The TMP output is independent of the alarm output so it can be used to control cooling equipment to reduce the temperature in the con trol panel TRG TRG is an abbreviation for trigger and represents the external tripping input 14 41 Power at selected branch outputs can be forcibly cut off by an external input signal The shutdown sequence function will operate in this case tripping alarm output When the S8M detected an abnormal voltage or current the branch output is 3 cut off and the Tripping Alarm Output TRP is turned OFF tripping type A branch output s tripping current can be detected with standard detection trip 57 ping within 100 ms or instantaneous detection tripping within 20 ms Glossary Appendix A TRP is an abbreviation for the tripping alarm output terminal This output is turned OFF when an abnormal current or abnorm
76. e alarm s set value SV The SV can be changed by pressing the and Keys see note The setting range is 0 0 to 99 9 kh 99 900 h set in 100 hour units Note lf the G or amp Key is pressed for more than 2 s the SV will change in 1 0 kh units instead of 0 1 kh units The run time alarm won t be output if the SV is set to 0 0 kh Change the SV with the N and amp Keys The S8M will automatically return to the TIM display if no key is pressed within 3 s When the Key is pressed the SV display will flash When the flashing stops the new setting will be saved and the S8M will return to TIM dis play If you want to confirm the new setting press the Return to TIM display Key again from the TIM display Note When the run time exceeds the SV the Alarm Output ALM will be turned OFF and the seven segment display will alternate between error code A23 and the measured run time set the run time value to 0 0 kh when run time alarms are not required The run time PV can be cleared to reset the timer For details refer to page 71 When an alarm is being output because the run time exceeds the alarm value SV the alarm output can be cleared by clearing the run time PV 62 Shared Parameter Settings Section 4 7 Setting the Over temperature Output Value TMP Temperature If the Down Key is pressed from the run time value setting display TIM the display will switch to the over temperature output
77. e cut off when the S8M detects an abnormal current or 26 voltage At this point the error code will be displayed on the seven segment display and the Tripping Alarm Output TRP will be turned OFF DIN Rail Used to install the S8M external tripping input Branch outputs can be forcibly cut off with an input to the External Tripping Inout TRG terminal The shutdown sequence function will operate in this case The Support Tool and communications can also be used to cut off branch out puts in addition to the External Tripping Input TRG terminal instantaneous detection Each branch output s tripping current and abnormal current can be detected alarm type and tripping type with standard detection tripping within 100 ms or instantaneous detection tripping within 20 ms With instantaneous detection the output will be cut off or the alarm will be output within 20 ms if the current is higher than the set value continuously for 10 ms or longer monitoring The S8M s operating status can be seen at a glance by connecting the Support 93 Tool The Present Values Window or Status Window can be selected operating mode There are three operating modes in the S8M Run Mode Setting Mode and 7 49 Test Mode overcurrent alarm When the branch output s current exceeds the preset alarm value the Alarm 25 58 Output ALM is turned OFF The alarm value can be set between 0 5 and 4 0 A 0 5 to 3 8 A in the UL Class 2 output model over temp
78. e exceeds 28 8 V all of the branch outputs will be cut off immediately The Tripping Alarm Output TRP is turned OFF when the outputs are cut off It is not necessary to set parameters for this function alarm output The Alarm Output ALM is turned OFF when the S8M detects an overcurrent 26 40 overvoltage undervoltage or excessive run time alarm type A branch output s overcurrent alarm can be detected with standard detection tripping within 100 ms or instantaneous detection tripping within 20 ms ALM ALM is an abbreviation for the Alarm Output Terminal The ALM output is turned OFF when an overcurrent overvoltage undervolt age or excessive run time is detected branch output A branch output is one of the S8M s output circuits The S8M has four branch 2 40 outputs communications The standard model S8M CP04 R and UL Class 2 output model S8M CP04 6 41 RS are equipped with an RS 232C port The S8M can be connected to a com puter running the Support Tool or a network such as a CompoWay F network communications settings The RS 232C port settings must be set when connecting to the Support Tool or 67 to 71 a host computer CompoWay F CompoWay F is one of OMRON s general purpose FA networks current fuse When a branch output could not be cut off by the semiconductor relay a current 16 26 fuse will blow to protect the circuit If the fuse blows that branch output will become unusable cut off A branch output will b
79. e processed Not moved to system search mode e A non volatile memory error occurred Executed within 15 seconds after the last reset operation 118 ASCII List Section 7 10 7 10 ASCII List Los or ve us na vo ve o HAAPANEN afefeti ifalofala 2 s aa n o 4 ferfoce s a fol rele js ool s e ulus eem altel v v jejel 7felw o w pe fesfowl feat x n x pottery fofily i fy pale foe fs fzti e BOB BOGnNHERNSEEN po fewfes m itm eje im gt ufaln e ful fol ole Even parity T 119 ASCII List Section 7 10 120 SECTION 8 Error Processing This section explains how to troubleshoot errors that may occur when using the S8M Sl TrOUDIeSHOOUNG gt 55er ee Rent EA e ROI eee Eo d par dal 122 0 2 Seven segment Error Codes unu SL he eww eho Oe QURE Ed 123 5 9 Clean BEFOES eo eto E cue aciem adit e AR Cubase urea Suede etui ue 125 121 Troubleshooting Section 8 1 8 1 Troubleshooting If the S8M is not operating properly check the items listed in the following table before requesting repairs If the problem cannot be remedied contact your OMRON sales representative Installation Parameter settings Reference page The S8M was installed on a DIN Rail but the bottom of The S8M s bottom latch is not Check that the S8M has been 37 mounted properly pressed until the bottom latch the S8M is not attached c
80. e settings Shutdown Sequence Disconnects the branch outputs in the pattern set with the shutdown sequence settings Reset Clears the output cutoff triggered by an abnormality or external tripping input and reconnects the output If the output was cut off by a Support Tool operation shutdown sequence or output trip the error will be reset but the output will not be connected Monitor Status Switches to the Status Window Closes the Present Values Window 94 Monitoring Section 6 4 Status Monitor Displays the status of the input voltage current internal temperature and run time x Input voltage Normal 1 Active abnormal current trip 7 5 A Displays the current when the output was cut off 2 M Branch output Mc 3 Normal 4 Normal Internal temperature Normal Run time Normal External tripping input ore lt Displays the external tripping input status Branch output Current connection olo lolo Reset Reset Button status Present values Close Close Button Displays the output connection owitches to the Present Values Window status using color coding Input voltage The present values and set values are compared and Branch output the display indicates whether the present values are normal Internal temperature Pa If the value is abnormal the display indicates the error Run time Runtime See note note Runtime See note and measured value Exter
81. e seven segment display alternately shows error code A11 and the measured current e The branch output 1 indicator and unit indicator A will flash along with the measured current e Status Indicator 1 will be lit red Press the Reset Key for at least 3 s to clear the error Power will be supplied at the output again Even if an error such as an overcurrent occurs in Setting Mode or Test Mode the error code will not be displayed and the error cannot be reset with the Reset Key When the S8M is switched to Run Mode the error code will be displayed and the error can be reset with the Reset Key When the Reset Key is pressed for 3 s RST will be displayed on the seven segment display Identifying and Correcting the Cause of the Error Correcting Abnormal Current Tripping A11 Errors When an error code is displayed on the seven segment display determine whether an error actually occurred or there is a problem with the parameter setting When error code A11 abnormal current tripping and the current are dis played alternately on the seven segment display there are two possible causes Check whether the load connected to the output is too large or the current setting is too low e f there are too many loads connected split up the loads e f the current setting is too low increase the setting 125 Clearing Errors Section 8 3 e f the overcurrent is occurring momentarily check the abnormal current tripping
82. ecautions B Precaution Classifications The following conventions are used to indicate and classify precautions in this manual Always heed the information provided with them Failure to heed precautions can result in injury to people or damage to property Indicates a potentially hazardous situation which if not ANTE avoided may result in minor or moderate injury or in property damage B Cautions A CAUTION Minor electric shock fire or Product failure may occasionally occur Do not disassemble modify or repair the Product or touch interior of the Product Minor burns may occasionally occur Do not touch the Product during power is being supplied or immediately after power is turned OFF Fire may occasionally occur Tighten terminal screws to the specified torque Power input terminals M4 1 08 N m 9 6 in Ib Branch output terminals M3 5 0 8 to 1 0 N m 7 2 to 8 8 in Ib Minor electric shock fire or Product failure may occasionally occur Do not allow any pieces of metal or conductors or any clippings or cuttings resulting from installation work to enter the Product The Product will be damaged Do not incorrectly connect the polarity of power input terminals xi Precautions for Safe Use E Operating the S8M Unlike ordinary mechanical circuit protectors the S8M does not have contacts for switching The S8M uses semiconductor relays to switch the circuits ON OFF and cut off the outputs Read a
83. ectly initialize the S8M s parameters it just initial izes the parameters in the display windows 1 When you want to initialize the parameters in the S8M select Communi cations Initialize Parameters t S8M Support Tool File Edit Communications Monitor Help CO Port Settings Comment Upload Download Initialize Parameters 2 This operation writes the default values to the S8M s parameters If the S8M s parameters were initialized properly the following message will be displayed S3M Support Tool x Network communications completed 3 The following operations are performed when the S8M s parameters are initialized The operating mode is changed to Setting Mode Each parameter is changed to its default value e Each branch output is disconnected The protection level is changed to level 1 1 The S8M Support Tool s version number can be read Select Help Version E 48M Support Tool File Edit Communications Monitor Help Comment 2 The Support Tool s version number will be displayed OMRON S8M Support Tool SM supparttanl exe 1 01 Build 20570 c Copright OMRON CORPORATION 2006 e All Rights Reserved Version number SECTION 7 Communications This section describes the communications provided by the S8M 7 1 CompoWay F Communications Specifications 100 dod Drame SUUNCIINCs 0o 84 cee eee ae eees qEERU PERSE TASSE URN UR ex 101 7 2
84. ed the power is turned ON the output will be reset e A current over the overcurrent alarm value was detected The run time exceeded the run time value Over tempera A temperature exceeding the over tem The output is reset auto ture Output perature output value was detected matically when the tem TMP perature falls to 3 C below the over temperature out put value Branch outputs can be forcibly cut off by turning ON the External Tripping Input TRG e Tripping using the External Tripping Input can be enabled or disabled independently for each branch output A branch output will be cut off only when this function is enabled e The External Tripping Input directly cuts off a branch output s DC circuit so it acts even faster than cutting off the output by turning OFF the normal AC power supply e When a shutdown sequence has been set this function can be used to set a time lag for the branch output cutoff For details refer to 2 6 Shut down Sequence Function A delay can be set for the connection of the four branch outputs When you want to apply a startup delay to the branch output it is not necessary to con struct an external sequence circuit The inrush current can be suppressed by applying a delay and the Power Supply Unit s capacity can be reduced For details refer to 2 5 Startup Sequence Function When an external input is used to cut off an output the four branch outputs cutoff can be delayed Whe
85. ed cut off 117 Response Code List Section 7 9 2 Response Codes Response Cause Error code priority Command too long The command is too long ir 1002 Command too short The command is too short E Parameter error Command code and related information are wrong Bit is ON for a non existent branch output 2203 Operation error Processing could not be per 4 formed See note 0000 Normal completion Noemr 0 Note Includes execution within 15 seconds after the last reset switch request 7 9 Response Code List Response Cause Error code p 0000 Normal completion 0401 Unsupported com The service function for the mand specified command is not sup ported 1001 Command too long The command is too long 1002 Command too short The command is too short 1101 Area type error The variable type is incorrect 1003 Number of elements The amount of data does not 5 data mismatch match the number of elements 100B Response too long The response exceeds the com munications buffer size 1100 Parameter error The bit position is not OO A fixed 00 value was not set to 00 Incorrect command code or related information in the oper ation command Incorrect operating mode or related information in a change operating mode command The write data is out of the set ting range 3003 Read only error Attempted to write a read only variable 2203 Operation error The operation command could not b
86. efault value 7 bits Stop bits 1 or 2 bits Default value 2 bits Error detection Vertical parity None even or odd Default value Even BCC block check character Flow contra Retry function Communications buffer 64 bytes Frame Structure Section 7 2 Communications Control Method Note Programs are created in the host computer to set or monitor parameters in the 58M so the descriptions in this section are from the standpoint of the host computer CompoWay F is OMRON s unified communications protocol for general pur pose serial communications This unified format has a proven track record with OMRON Programmable Controllers has FINS compliant commands see note and simplifies communications between the host computer and components FINS Factory Interface Network service is a messaging protocol for commu nications between Controllers in OMRON FA networks The S8M has the following communications functions e Reading settings and data Executing operation commands Switching setting levels The following restriction applies to the communications functions Settings data can be written only when writing is allowed through commu nications 7 2 Frame Structure 7 2 1 Command Frame Structure MIIZRZZGZGEGIUIGIGIGSGGRGIAIGIIGISIZIIZIRSZIGIIUIGIZIIGIIZZZGIUIIZIRIUIIZIGIGIIZIGIZIGIGGEGIZIGIURIZIGSIURIZIGIZISUIGIZIGIGGEIZIGIUISGIGZIUIIZIGIGIGUZIGIZEGUREIZIGURZGIGGGUGiGGGIGRGUG Node No Subaddress SID FIN
87. ence Function The inrush current may cause a voltage drop if all of the branch outputs are connected simultaneously and there is little spare capacity in the power sup ply or the loads connected to the branch outputs are capacitive loads A signif icant voltage drop may cause an output to be cut off In this case a time delay see note can be applied between the connections of the branch outputs to minimize the voltage drop Note 1 The time delay can be set between 0 0 and 99 9 s If the delay is set to 0 0 s the startup sequence will not operate and the branch output will be connected immediately 2 The startup sequence is designed for the four branch outputs on one S8M It does not provide time synchronization between outputs on more than one S8M After the power supply is turned ON and the self diagnostics are performed the S8M will start connecting the branch output according to their preset star tup sequence times Power supply voltage Branch output 1 voltage Branch output 2 voltage ENIM t Branch output 3 voltage Branch output 4 voltage l Setting time Self diagnostics 0 5 s min gt 30 Shutdown Sequence Function Section 2 6 e The branch output s status indicator will flash green during the startup sequence time until it is connected The startup sequence s operation can be verified in Test Mode For details refer to 5 8 Checking Sequence
88. er temperature Output to operate the cooling equipment Vent Mount the S8M at least 20 mm away from heat sources e The S8M can be installed side by side Installation Section 3 2 Wiring duct 75 mm min 20 mm min Wiring duct 3 2 Installation When mounting the S8M in a panel use DIN Rail Surface installation cannot be used Mounting in a Panel e The S8M must be installed in the orientation shown below to ensure ade quate cooling ERR LI EES EE SS P 35 Installation Section 3 2 Do not install the S8M in any of the following orientations Incorrect Incorrect Jr dg 8888888890880 Incorrect Incorrect 80000 aono IU 9 ow VON ee ey External Dimensions omron S8M DIGITAL MULTI CIRCUIT PROTECTOR 36 Installation Section 3 2 DIN Rail Installation Always install the S8M on DIN Rail Recommended DIN Rail PFP 50N 50 cm PFP 100N 100 cm or PFP 100N2 100 cm PFP 100N2 16 28 25 x 4 5 oblong holes r 30 0 3 27 24 29 2 4 5 25 1 be 25 115 itis 10 7 3 0 15 SS 3510 3 2710 15 15 5 etit
89. erature output The S8M has a built in temperature sensor that monitors the internal tempera 28 63 ture The Over temperature Output TMP will be turned OFF when the internal temperature exceeds the set value C1 co O 14 41 oO N 40 31 97 59 12 Glossary Appendix A Term OOO Meg O Page overvoltage alarm When the input voltage exceeds the preset alarm value the Alarm Output 26 61 ALM is turned OFF The alarm value can be set between 20 0 and 28 8 V peak output current The peak output currents for branch outputs 1 to 4 can be read in Run Mode The peak output currents can be cleared using S8M key operations or from the Support Tool protection level The protection level can be set to one of three levels to restrict read write 54 54 access to the parameters This function can be used to prevent parameters 97 from being changed or deleted inadvertently RS 232C port The standard model S8M CP04 R and UL Class 2 output model S8M CP04 14 41 RS are equipped with an RS 232C port The RS 232C port can be connected to a computer running the Support Tool or a host computer Run Mode Each branch output is connected and the input voltage current internal tem 8 78 perature and run time are monitored continuously Tracks the run time and outputs an alarm when the run time exceeds the alarm 30 71 value run time clearing The run time can be cleared semiconductor relay Branch outputs are
90. essing the AQ and zi Key The S8M will automatically return to the A T dis play if no key is pressed within 3 s HOU DLIEIEIELILI CSS TN hn Ie When the Key is pressed the SV display will flash When the flashing stops the new setting will be saved and the S8M will return to A T dis play If you want to confirm the new setting press the Key again from the A T display Return to A T display Standard USU When the current exceeds the alarm value for more than 80 ms the Alarm Output ALM is turned OFF within 100 ms Instantaneous INS When the current exceeds the alarm value for more than 10 ms the Alarm Output ALM is turned OFF within 20 ms When necessary refer to the procedures on pages 56 to 59 and set the parameters for branch outputs 2 to 4 If the Down Key amp is pressed from the overcurrent alarm type setting dis play A T for branch output 4 the display will switch to the undervoltage alarm value setting display V U described in 4 7 Shared Parameter Settings 59 Shared Parameter Settings 4 7 Shared Parameter Settings Section 4 7 Setting the Undervoltage Alarm Value V U Voltage Under Switch to the overvoltage alarm value setting 60 Setting the overcurrent alarm type A T for branch output 4 is the last step of the current tripping function and overcurrent alarm function settings for branch outputs 1 to 4 If the Down Key is pressed fr
91. etween Displays in the Mode Selection Menu When the S8M is switched to the Mode Selection Menu from Run Mode the display will show RUN At this point the S8M will automatically enter Run Mode if the Mode Key is pressed or the Up Key R or Down Key isn t pressed within 5 s If the Key is pressed INI will be displayed If the Down Key is pressed SET will be displayed If the Mode Key is pressed at this point the S8M will enter Set ting Mode Refer to 4 4 Changing the Protection Level to 4 6 Individual Branch Output Settings for details on setting parameters If the Down Key is pressed TST will be displayed If the Mode Key is pressed at this point the S8M will enter Test Mode See SECTION 5 Trial Operation to Actual Operation for details on Test Mode If the Down Key is pressed PRT protect will be dis played If the Mode Key is pressed at this point the 58M will switch to the protection level display If the protection level is set to level 0 INI will be displayed when the Down Key B is pressed If the Mode Key is pressed at this point the S8M will switch to the parameter ini tialization display Note The default protection level is level 1 and the INI option will not be displayed in protection level 1 If the Down Key K is pressed the S8M will return to the RUN display 52 Switching the Operating Mode
92. evant Valid Invalid Valid Enabled circuits lit Overvoltage alarm value Run time value Over temperature output Unit number Not lit None Baud rate Data length Stop bits Parity Send wait time 0t999ms fom Clear run time Nme S S Note 1 In the S8M CPO04 RS the setting range is 0 5 to 3 8 A and the default val ue is 3 8 A 2 If the run time value is set to 0 0 kh no alarm will be output 3 The default setting for the over temperature output value is 80 C i e the over temperature output is essentially disabled lt m C illl Seven segment display t Unit indicators Branch output indicators 4 3 Switching the Operating Mode The S8M s parameters are set in Setting Mode A newly purchased S8M auto matically starts in Setting Mode but it may be necessary to switch to Setting Mode if the S8M has been operated before 49 Switching the Operating Mode Section 4 3 Turning ON a New S8M for the First Time Mode Selection Menu Select Setting Mode 5 SET f a AHEJ Press for 3 s Aa The Initialize Parameters command is displayed in protection level 0 only F 7 A newly purchased S8M will start in Setting Mode when it is turned ON for the first time Normal Power ON Procedure S8M was not in Test Mode s ede when power went OFF ian aa went OFF Run Mode AI SHE Press for 3
93. ff tion resistor Thermal fuse Wir Fuse O O o O O V gt DC branch output 4 a l Current lim iting circuit tj lr e The S8M continuously converts the measured input voltage current internal temperature and run time from analog to digital and compares these measured values to the preset parameters These values can be read on the S8M s seven segment display or monitored remotely from the Support Tool connected via the RS 232C port e When an error is detected the branch output will be cut off or an alarm will be output The error code and PV will be displayed alternately on the seven segment display The information can also be read from the Sup port Tool When an abnormal voltage or current is detected the semiconductor relay will cut off the branch output In the unlikely event that the semicon ductor relay cannot cut off an abnormal current or short circuit current the short circuit protection fuse 8 0 A minimum will blow to protect the sys tem e The S8M has a built in temperature sensor which can detect a tempera ture rise inside the S8M When the internal temperature exceeds the alarm value the Over temperature Output TMP will be turned OFF The TMP output is independent of the alarm output so it can be used to con trol cooling equipment to reduce the temperature in the control panel e The equipment s run time can be monitored in 0 1 kh 100 hour units by measuring the S8M s run time
94. g The number of elements is i Boo than 000A 1100 The bit position is not 00 So a Normal completion Write Variable Area This service writes data to a variable area m Service Request PDU MRC SRC Variable Write Start Number of Write Data Type Address iti Elements 0 1 0 4 2 2 2 2 4 0 to 40 110 Details of Services Section 7 3 m Service Response PDU MRC SRC Response Code 1 02 2 2 4 1 Variable Type and Write Start Address The definitions are different for each product 2 Bit Position The S8M does not support bit access Fixed to 00 3 Number of Elements Number of Processing elements 0000 The write operation is not performed does not append write data to the service request PDU and processing ends in nor mal completion 0001 to 000A The write operation is performed and processing ends in nor mal completion hexadecimal display 3 Response Codes Response Cause Error code priority Command too short The command is too short 1101 Area type error The variable type is incorrect 1003 Number of ele The amount of data does not match ments data mis the number of elements match 1100 Parameter error The bit position is not 00 The data is out of the setting range 0000 Normal completion No error EN Note The command too long error does not occur with the Write Variable Area command If data is written up to the number
95. h to the data length setting display LEN Data Length LEN Bit Length The data length setting display LEN will be displayed if the Down Key B is pressed from the baud rate setting display BPS This parameter sets the data length to 7 or 8 bits Switch to the stop bits set ting Press the Key to display the data length set ting The setting can be changed by pressing the Or Key 7 7 bits 8 8 bits Change the setting with the zj or amp Key The S8M will automatically return to the LEN dis play if no key is pressed within 3 s 68 Special Settings and Communications Settings Section 4 8 flashing stops the new setting will be saved and the S8M will O When the Key is pressed the setting will flash When the 2 return to the LEN display If you want to confirm the new set Return to LEN display ting press the 9 Key again from the LEN display If the Down Key is pressed from the LEN display the dis play will switch to the stop bit setting display BIT Stop Bit Setting BIT Stop Bits The stop bit setting display BIT will be displayed if the Down Key is pressed from the data length setting display LEN This parameter sets the number of stop bits to 1 bit or 2 bits Switch to the parity setting Press the Key to display the stop bit setting The setting can be changed by pressing the a or Key 1 1 bit 2 2 bits C
96. hange the setting with the N or amp Key The S8M will automatically return to the BIT dis play if no key is pressed within 3 s When the Key is pressed the setting will flash When the flashing stops the new setting will be saved and the S8M will return to the BIT display l If you want to confirm the new setting press the Return to BIT display Key again from the BIT display If the Down Key is pressed from the BIT display the display will switch to the parity setting display PTY 69 Special Settings and Communications Settings Section 4 8 Parity Setting PTY Parity Bit The parity setting display PTY will be displayed if the Down Key is pressed from the stop bit setting display BIT This parameter sets the parity to none even or odd Switch to the send wait time setting Press the Key to display the parity setting The setting can be changed by pressing the and Keys non None Evn Even odd Odd Change the setting with the amp or amp Key The S8M will automatically return to the PTY dis play if no key is pressed within 3 s Change the setting with the amp or amp Key When the Key is pressed the setting will flash When the flashing stops the new setting will be saved and the S8M will return to the PTY display If you want to confirm the new setting press the Return to PTY display Key again from the PTY display
97. hanged by pressing the A and Keys The setting range is 0 0 to 99 9 s 0 1 s units Change the SV with the amp and 8 Keys see note The S8M will automatically return to the DWS dis play if no key is pressed within 3 s Note lf the a or Key is pressed for more than 2 s the SV will change in 1 0 s units instead of 0 1 s units LI LILILILTME WOR ine When the Key is pressed the SV display will flash When the flashing stops the new setting will be saved and the S8M will return to DWS display If you want to confirm the new setting press the Return to DWS display Key again from the DWS display Press the amp Key to switch to the shutdown sequence time settings for branch outputs 2 3 and 4 Set those shutdown sequence times when required If the Down Key is pressed from the shutdown sequence setting display DWS for branch output 4 the display will switch to the external tripping input setting display TRG Note The shutdown sequence function sets the time that the S8M waits before cut ting off each branch output when the branch outputs are cut off by the external tripping input or communications For details on the startup sequence refer to 2 6 Shutdown Sequence Function 65 Special Settings and Communications Settings Section 4 8 External Tripping Input TRG Trigger The external tripping input setting TRG will be displayed when the Down Key is pressed from the shutdo
98. have RS 232C port terminals for com munications with the Support Tool Creating the There is not an accessory connecting cable available to connect the S8M with Connecting Cable personal computer Assemble an RS 232C connecting cable as shown below Host computer connection S8M RS 232C port connection Signal name KA 8 Ro o Reewedda OO B e o o maoo 43 RS 232C Port Wiring SSM CP04 R and S8M CP04 RS Only Section 3 4 Wiring the RS 232C Port Terminals Example Connection to a Host Computer Example 1 1 Connection Using the RS 232C Port m Connection to a Windows Computer S8M RS 232C sp D Sub 9 pin male e Strip 10 mm from the ends of the RS 232C cable s wires e Press the terminal s release button all the way in and insert the wire into the round wire hole When the wire inserted be sure that the wire conduc tor is not exposed IS Release the release button to lock the wire in place After wiring verify that the wires are securely locked in the terminals Press the Release Button all of the way in and insert the wire Windows computer Example 1 1 Connection Using K3SC Serial Adapters The K3SC Serial Adapters are required when the distance is over 15 m 44 Computer Name Pin CD HD RS SD 232C ER inter SG DR face RS CS 00 O O1 B G Po C1 Power Supply AC model
99. he Alarm Transistor output and Over temperature Outputs Over temperature E From internal power supply circuit Output TMP Ro WAPA Signal from CPU External Tripping Input circuit 19 2 to 30 0 VDC Input TRG Minimum signal width 10 ms Internal Circuit Configuration of the External Tripping Input Mr a Note When a branch output is cut off with the External Tripping Input it cuts off power to the branch output even faster than turning OFF the S8M s power supply Example Operation of the This example shows the ALM output operation when an undervoltage alarm Alarm Output ALM OCCUIS Undervoltage alarm value Power supply voltage Branch output current do ET SI i Branch output voltage do E ON OFF l ON Alarm Output ALM conducting not conducting conducting Reset signal o ils 20 Specifications Section 2 3 Example Operation of the This example shows the TRP output operation when an overcurrent alarm or TRE 9 Alarm Output abnormal current tripping occurs Power supply voltage Tripping cutoff current value Overcurrent alarm value Branch output current I I p Branch output wem p d i ON AE Li ON Alarm Output ALM conducting not conducting conducting I Tripping Alarm ON OFF ON Output ALM conducting not conducting conducting Reset signa
100. ic Operation When a 24 VDC power supply is connected to the input terminal block the after Power ON S8M performs self diagnostics If no errors are detected the S8M immedi ately starts connecting the branch outputs Branch outputs will not be connected ON if they were not set to ON in Test Mode Furthermore if the startup sequence function see 2 5 Startup Sequence Function has been set the outputs will be connected in order according to their corresponding set times Operation in Run In Run Mode the S8M continuously converts the input voltage current run Mode time and internal temperature from analog to digital and compares these present values to the set values both user set parameters and system set values These values can be read on the S8M s seven segment display and the displayed value can be switched with the Up Key jf and Down Key 9 Tripping Operation When the voltage or current is abnormal the branch output is cut off and the Tripping Alarm Output TRP is turned OFF SSM Operations and Operating Modes Section 1 2 Alarm Operation Operation in Setting Mode Operation in Test Mode Operation with Support Tool Connected Note When the converted input voltage current internal temperature or run time exceeds the set value the output will be cut off or an alarm will be output and the error indicated on the Alarm Output ALM will be turned OFF The Over temperature Output TMP will also be turned
101. in the next time that the power is turned ON In this case all branch outputs will be OFF not connected Mode Selection Menu The Initialize Parameters Y command is displayed in protection level 0 only S6M Operations and Operating Modes Section 1 2 Normal Power ON If the S8M has been turned ON already it will enter Run Mode or Test Mode Procedure the next time that power is turned ON If the S8M was in Test Mode when the power went OFF it will start in Test Mode If it was in a mode other than Test Mode when the power went OFF it will start in Run Mode S8M was not in Test Mode Su as ee Mode Selection Menu jolt post are Press for 3 s Select Run Mode rtin RUN e Sica bash iL SHS Press for 3 s Test Mode cannot be selected in protection level 2 i The Initialize Parameters i sit n osi aci e ae I command is displayed in protection level 0 only a In addition to selecting the operating mode the Mode Selection Menu can be used to select the protection level See note 1 and initialize the parameters see note 2 Note 1 The Protection Level function can restrict parameter read write access to one of three levels For details refer to 4 4 Changing the Protection Level 2 The Initialize Parameters function restores all of the S8M s parameter set tings to their default values For details on default values refer to 4 2 Pa rameter Setting Ranges Automat
102. ions Js2 Brame Suet AUAWA 723 Details OL Services 44 04 aus doo das dere a oboe pr s eda 7 4 Read Controller Information 7 5 Read Controller Attributes 726 Read Controller SOCIUS ces orae FA u SW EeaUREASPRE AA EAS up Jut J BOhoDdcKk IeStusoeg x anche Acad ace ae den X api bis edel Et d Abe d 7 8 Operation Command sssi serier ty am 5 bud ipw eo 79 Response Code Lists s s ni ed ere eee RS TWA E en ornrocdt arenes duin decr d are tha duties SECTION 81 82 85 87 92 96 99 100 101 109 112 114 115 116 117 118 119 BEEOEFPEOGRSSIDS 22 v uoebvetweeaw cv carienes ireren IZ Sl ZroubleshOOUlie sooo eoe ses ale ECRIRE A ICE bus 8 2 Seven segment Error Codes So Elearnmb EOS IIIA KA ewe Meh we ees Appendices WES c uM B Cisto Operations 5s omes 8 SES 204 RR VP UA Revision History 122 123 125 129 133 137 About this Manual This manual describes the installation and operation of the S8M Digital Multicircuit Protector and includes the sections described below Please read this manual carefully and be sure you understand the information provided before attempting to install or operate the S8M Digital Multicircuit Protector Be sure to read the precautions provided in the following section Precautions provides general precautions for using the S8M Digital Multicircuit Pr
103. ive Details usage Use as a circuit In Setting Mode set the tripping current value C V for the branch output being 56 58 breaker with overcur used and set the abnormal current tripping detection setting C T to standard rent tripping detection USU Use as a circuit In Setting Mode set the tripping current value C V for the branch output being breaker for short cir used and set the abnormal current tripping detection setting C T to instantaneous cuit current protec detection INS Output an alarm Take the alarm signal from the Tripping Alarm Output TRP terminal When an out 56 58 40 when output is cut off put is cut off the seven segment display will show error code A11 and the TRP out due to overcurrent put will go OFF Output an alarm In Setting Mode set the overcurrent alarm value A V for the branch output being 58 59 40 before output is cut used and set the overcurrent alarm detection setting A T to standard detection rent put ALM terminal When an overcurrent is detected the seven segment display will show error code A22 and the ALM output will go OFF Detect power supply In Setting Mode set the overvoltage alarm value V O Take the alarm signal from 61 overvoltage the Alarm Output ALM terminal When an overvoltage is detected the seven seg ment display will show error code A20 and the ALM output will go OFF tion off due to overcur USU or instantaneous detection
104. l n Aa 3 s min Example Operation of the The Over temperature Output is reset automatically when the temperature Mp perature Output falls to 3 C below the over temperature output value For details refer to page 28 21 Basic Function Details Section 2 4 2 4 Basic Function Details 2 4 1 Current Protection Functions Abnormal Current Trippin 22 Note A different current tripping value can be set for each branch output Set the current tripping values between 0 5 and 4 0 A in 0 1 A units with the S8M CP04 and S8M CP04 R or between 0 5 and 3 8 A in 0 1 A units with the S8M CP04 RS The abnormal current tripping type can be set to standard detection tripping within 100 ms or instantaneous detection tripping within 20 ms When the S8M detects an abnormal current that branch output is cut off by its semiconductor relay When the output is cut off the error code A11 and present current are displayed alternately on the seven segment display and the Tripping Alarm Output TRP is turned OFF To reset the alarm press the Reset Key 15 s after the alarm occurred Setting Default Tripping Operation Error code and Conditions range value type alarm output required to reset Standard When a current The error code The Reset Key higher than the A11 and cur can be used to set value is n are dis reset the alarm detected the played once 15 s have branch output is alternately on elap
105. l be connected according to the pattern set with the startup sequence If branch outputs are already connected they will be reconnected immedi ately after the download 3 The Comment Field below the Menu Bar is used to enter a memo for file management in the Support Tool The comment is not transferred to the 58M as a parameter so the comment cannot be read when the parame ters are uploaded Setting and Saving Parameters Section 6 3 6 3 Setting and Saving Parameters Setting the Parameters Basic Settings Tab Page Window Displayed at Startup The Parameter Setting Window appears when the Support Tool starts The parameters can be set in this Window and the various functions can also be selected from the Menu Bar There are two tab pages in the Parameter Setting Window the Basic Settings Tab Page and Branch Output Settings Tab Page Switch between these tab pages by clicking the corresponding tab at the bottom of the page and set the parameters in each tab page The parameters set in this window are just set in the Support Tool The edited parameters must be downloaded to the S8M to change the S8M s parame ters 4 58M Support Tool DS xj File Edit Communications Monitor Help Comment Undervottage alarm value Cy 20 0 18 D 25 4 Overvottage alarm value YI 90 5 20 0 28 8 Owver temperature output value oc Bu 25 80 Run time value kh 55 0 0 99 9 Click here to switch to the Branch
106. lashing stops the new setting will be saved and the S8M will return to C T display Return to C T display If you want to confirm the new setting press the Key again from the C T display Standard A54 When the current exceeds the tripping value for more than 80 ms the branch output is cut off and the Tripping Alarm Output TRP is turned OFF The output will be cut off within 100 ms Instantaneous c5 When the current exceeds the tripping value for more than 10 ms the branch output is cut off and the Tripping Alarm Output TRP is turned OFF The output will be cut off within 20 ms 57 Individual Branch Output Settings Section 4 6 Setting the Overcurrent Alarm Value A V Alarm Value When the Key is pressed from the current tripping type C T display the display will switch to the overcurrent alarm value setting display A V This parameter sets the overcurrent alarm value for branch output 1 e Go to page 59 for the overcur rent alarm type setting Press the Key to display the overcurrent alarm s set value SV The SV can be changed by pressing the z and amp Keys see note The setting range is 0 5 to 4 0 A 0 1 A units for L a LL H the S8M CP04 CP04 R and 0 5 to 3 8 A 0 1 A units for the S8M CPO04 RS Note If the Or Key is pressed for more than 2 s the SV will change in 1 0 A units instead of 0 1 A units The S8M will automatically return to the A V dis play if no ke
107. le area Write Start Address lt Write data Write data Write End Address gt lt Last address e In this case the number of elements 2 and the amount of write data 1 are both within the specified range but the two values do not match Address Variable area Write Start Address Write End Address gt Write data lt Last address When the number of elements is 2 and the amount of write data is 2 but sec ond value amount of write data is outside of the setting range the data will be written from the Start Write Address and a parameter error will occur when the system attempts to write the parameter that is outside of the setting range 7 4 Read Controller Information This service reads the Controller s model and version m Service Request PDU MRC SRC m Service Response PDU ui 0 5 0 1 2 2 4 20 20 112 Read Controller Information Section 7 4 1 Model The S8M s model number is returned in 20 bytes of ASCII data If the data is less than 20 bytes long the remaining bytes will be padded with spaces 20 hex The following table shows the model number format Code 4 bytes Same in all models S8M Input voltage Code 1 byte 5V 12V 1 24 V 2 Number of branch outputs Code 1 byte 1 2 3 4 Communications specification Code 1 byte RS 232C NEWS 1 fixed UL c 2 OMS Code 1 byte Gods gi Code 1 byte Remaining bytes 10 bytes Ce All sp
108. lear process has been completed and the present current will be dis played as the peak output current Note 1 The S8M however contains a current restricting circuit so the peak val ue is not necessarily an accurate measure of the peak inrush current of the connected device 2 Due to the startup delay page 24 the peak output current display value may be greater than the abnormal current tripping value 80 SECTION 6 Support Tool This section explains how to use the S8M Digital Multicircuit Protector s Support Tool 6 L Installing the Suppor Iool ucc ex deers aban ERE E 82 6 2 Starine the Support TOOL ssis 08644 244546 doa Se bees lees CENE Ida 85 6 3 Setting and Saving Parameters 87 OF IMONILOLING anis pod eek oa een hoes cae is bao eke eee ened 92 6 5 SOUR SELUDSS s ca os d arespdutey aano e dus E con dos aA Ee dede paces andes 96 81 Installing the Support Tool Section 6 1 6 1 Installing the Support Tool Compatible Models Downloading the Support Tool 82 The S8M Support Tool can be used to set parameters monitor operating con ditions and manage parameter files in the S8M Digital Multicircuit Protector RS 232C port ge E ee B y et ar RS 232C cable JAL User assembled Support Tool A IASG Y FSS SOS EBS 2 Zt YS
109. licks The desired alarm value is not The setting is not allowed in Change the protection level being displayed the present protection level setting The set value was changed The new setting was not After pressing the Up and but the change wasn t saved Down Keys to change the set accepted value press the Mode Key and verify that the setting flashes and the setting is saved The branch outputs are not All branch outputs are discon Switch to Test Mode and con 74 working nected in the default settings nect the desired branch out to ensure safety puts When the S8M was switched to Run Mode after setting the overvoltage alarm and under voltage alarm the alarm out put went OFF and cannot be cleared The display is flashing ON in Test Mode but power is not being supplied by the outputs The undervoltage and over voltage settings may have been reversed Switch to Setting Mode from the Mode Selection Menu and check the settings 49 60 61 Equipment setup A flashing ON display indi cates that the S8M is waiting to turn ON the outputs If the Mode Key is pressed the output will be connected and power will be supplied When power is being sup plied OFF will flash on the display to indicate the S8M is waiting to turn OFF the out put The S8M was turned OFF in Test Mode and there was no power from the outputs when the S8M was turned ON again When the output is con
110. ltage and internal tempera ture measurements are continuously converted from analog to digital and these values as well as the run time are compared to preset parameters If a value exceeds the corresponding set value the output will be cut off or an alarm will be output and the error will be indicated on the seven segment dis play These functions increase the device s added value while also providing important maintenance information The S8M continuously converts the input voltage current and internal tem perature from analog to digital These values as well as the run time can be checked easily on the S8M s seven segment display Overview of Features and Functions Section 1 1 Error Display and Tripping Functions Three S8M Models Available Basic Functions Tripping Functions Note When the input voltage current internal temperature or run time exceeds the set value the error code will be displayed on the seven segment display and the branch output will be cut off or an alarm will be output and the branch out put will remain connected Error codes are displaying in order of their severity so the source of the error can be isolated quickly There are three models of the S8M Digital Multicircuit Protector available as shown in the following table The models share the same performance and basic functions such as tripping and alarms but differ in the internal circuit configuration see note 2 and communication
111. lusive warranty is that the products are free from defects in materials and workmanship for a period of one year or other period if specified from date of sale by OMRON OMRON MAKES NO WARRANTY OR REPRESENTATION EXPRESS OR IMPLIED REGARDING NON INFRINGEMENT MERCHANTABILITY OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE OMRON DISCLAIMS ALL OTHER WARRANTIES EXPRESS OR IMPLIED LIMITATIONS OF LIABILITY OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS WHETHER SUCH CLAIM IS BASED ON CONTRACT WARRANTY NEGLIGENCE OR STRICT LIABILITY In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY REPAIR OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED STORED INSTALLED AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION ABUSE MISUSE OR INAPPROPRIATE MODIFICATION OR REPAIR Application Considerations SUITABILITY FOR USE OMRON shall not be responsible for conformity with any standards codes or regulations that apply to the combination of products in the customer s application or use of the products
112. n you want to apply a shutdown delay to the branch output it is not necessary to construct an external sequence circuit For details refer to 2 6 Shutdown Sequence Function Overview of Features and Functions Section 1 1 Monitoring Temperature Rise TMP Output Monitoring the Run Time Protecting Parameter Settings Support Tool Available The S8M has a built in temperature sensor and the Over temperature Output TMP will be turned OFF when the internal temperature exceeds the set value This output can also be used to start a cooling fan or air conditioner to reduce the temperature in the control panel For details refer to 2 4 3 Over temperature Output A Run Time Value can be set and used for periodic maintenance of the equip ment The default setting is 0 0 kh which disables the alarm output For details refer to 2 4 4 Run Time Alarm The Protection Level can be set to restrict access to the parameters Three levels levels 0 1 and 2 are available This function can be used to prevent parameters from being changed or deleted inadvertently For details refer to 4 4 Changing the Protection Level Protection level 0 There are no restrictions on reading and changing the param eter settings Protection level 1 Permits only reading and changing of the input voltage cur rent internal temperature and run time parameters Protection level 2 Permits only reading of the input voltage current internal temper
113. nal tripping input Indicates whether or not the external trigger input TRG is ON Current connection status Displays the connection status Green Connected White Cut off by an operation or external signal Hed Cut off due to an error The indicator will also be red when simultaneously cut off by an exter nal operation 95 Other Settings Section 6 5 Note The run time cannot be reset from the Support Tool Reset Clears the error and supplies power at the branch output that was cut off Present Values Switches to the Present Values Window Closes the Status Window 6 5 Other Settings Communications These parameters set the communications settings for the computer s RS Settings 232C port If an error message like the one below is displayed when you attempt to upload parameters download parameters or monitor operation verify that the COM port settings match the S8M s communications settings 58M Support Tool E x Download Failed Please check network communications settings and connections to the 58M Select Communications COM Port Settings File Edit Communications Monitor Help COM Port Settings Upload Download Comment Initialize Parameters The Communication Settings Window will be displayed Set each parameter as needed Communications Settings X Communications Settings PC Mode number YA 0 31 Pan eomz ECOM AME Baud rate bps S600
114. nal voltage drop 0 5 VDC max at 4 0 A 0 7 VDC max at 3 8 A Power con 4 branches output 10 W max at 4 0 A 15 W max sumption normal operation 4 branches output 3 W max outputs cut off Functions Tripping func Abnormal voltage 28 8 V fixed Tripping Alarm Output TRP OFF tions tripping Abnormal current Setting range 0 5 to 4 0 A in 0 1 A units Tripping Setting range 0 5 to 3 8 A tripping Alarm Output OFF in 0 1 A units Tripping Alarm Output OFF Tripping Alarm Output Transistor output TRP 30 VDC max and 50 mA max Leakage current 0 1 mA max Residual voltage 2 V max Alarm func Overvoltage alarm Setting range 20 0 to 28 8 V in 0 1 V units Alarm Output ALM OFF tions Undervoltage alarm Setting range 18 0 to 26 4 V in 0 1 V units Alarm Output ALM OFF Overcurrent alarm Setting range 0 5 to 4 0 A in 0 1 A units Alarm Out Setting range 0 5 to 3 8 A put ALM OFF in 0 1 A units Alarm Out put ALM OFF Run time alarm Setting range 0 0 to 99 9 kh in 0 1 kh units Alarm Output ALM OFF The alarm output is disabled if the time is set to 0 0 kh Alarm Output ALM Transistor output 30 VDC max and 50 mA max Leakage current 0 1 mA max Residual voltage 2 V max Over temper Over temperature Setting range 25 to 80 C Over temperature Output ature function over temperature Transistor output Output TMP 30 VDC max and 50 mA max Leakage current 0 1 mA ma
115. nch output 1 0005 to 0028 0 5 to 4 0 A 0021 Current tripping value for branch output 2 UL Class 2 output model 0021 Cv BP ZIP 10005 to 0026 0 5 to 3 8 A 0022 Current tripping value for branch output 3 0023 Current tripping value for branch output 4 Address Name Datarmge 0030 Overcurrent alarm type for branch output 1 0000 or 0001 0 Standard 1 0031 Overcurrent alarm type for branch output 2 stantaneous 0032 Overcurrent alarm type for branch output 3 0033 Overcurrent alarm type for branch output 4 Addess Name Datarange 0040 Overcurrent alarm value for branch output 0005 to 0028 0 5 to 4 0 A 1 UL Class 2 output model 0041 Overcurrent alarm value for branch output 0005 to 0026 0 5 to 3 8 A 2 0042 Overcurrent alarm value for branch output 3 Overcurrent alarm value for branch output 4 Addess Name Bata range Startup sequence for branch output 1 0000 to 03E7 0 Disabled or 0 1 to 99 9 s Address Name Datarmge 0060 Shutdown sequence for branch output 1 0000 to OSE7 0 Disabled or 0061 Shutdown sequence for branch output 2 9 1 to 99 9 s 0062 Shutdown sequence for branch output 3 0063 Shutdown sequence for branch output 4 108 Details of Services Section 7 3 Address Name J Data range 0070 ae tripping input cutoff for branch 0000 or 0001 output 1 0 Enabled 1 Disabled 0071 External tripping input cutoff for branch output 2
116. nd understand the following features before operating the S8M B installation and Storage Environment 1 Store the Product at an ambient temperature of 25 to 65 C and relative humidity of 25 to 90 2 Poor heat dissipation resulting from improper installation conditions may occasionally deteriorate or damage internal parts Do not use any mounting method other than a standard one 3 Internal parts may occasionally be deteriorated or broken Do not use the Product in conditions exceeding the derating in portion 1 of the derating curve The surrounding air temperature for UL 508 listing and UL 60950 1 recognition is 50 C Use the Product where the relative humidity is 2596 to 8596 Do not use the Product where it would be subjected to direct sunlight Do not use the Product where it would be subjected to the possibility of penetration of liquid foreign substance or corrosive gas 8 Do not use the Product where it would be subjected to shock or vibration A device such as a contact breaker may be a vibration source Install the Product as far as possible from external devices Additionally install a PFP M End Plate on each side of the Product 9 If the Product is used in an area with excessive electronic noise be sure to separate the Product as far as possible from the noise sources 10 Tripping performance depends on the ambient operating temperature Use the Product within the derating curve page xiii B Wiring e Minor
117. ndard detection or instantaneous detection Setting Default Alarm Operation Error code and Conditions range value type alarm output required to reset 0 5 to Standard When the cur The error code The Reset Key 4 0 A rent is higher A22 and cur can be used to 0 5 to than the set dm are dis reset the alarm 38Ain value continu played once the cur the ously for 80 ms alternately on rent is 0 3 A or S8M or more the the seven seg more below the CP04 alarm is output ment display set value RS within 100 ms and the Alarm Instanta Whenthe cur Output ALM is neous rentis higher turned OFF than the set value continu ously for 10 ms or more the alarm is output within 20 ms m Operation Overcurrent alarm value Alarm value 0 3 A Current lt gt 100 ms or 20 ms 500 ms Error code display and Alarm Output ALM Reset possible The Alarm Output ALM will be turned OFF if the branch output s current exceeds the alarm value continuously for 80 ms or more standard detec tion or 10 ms instantaneous detection In this case the seven segment display will alternately display the error code A22 and present current The error display and Alarm Output can be cleared when the current has been below the alarm value continuously for 500 ms or more 25 Basic Function Details Section 2 4 Alarm and Tripping Operation When Overcurrent Abnormal Current Occurs
118. nected in Test Mode it is cut off immediately and can t be con nected again Operation The displayed temperature is clearly different from the ambient temperature An alarm was output and the cause of the alarm was elimi nated but the alarm display was not cleared 122 Connect the desired branch outputs in Test Mode and then switch to Run Mode or Setting Mode before turning OFF the power Check for problems such as output wiring and load con nection problems If no prob lems are found press the Reset Key for at least 3 s If the over temperature out put is being used to control a fan or cooling equipment set the over temperature output value based on the graph on page 29 The alarm can be cleared by pressing the Reset Key for at least 3 s If the power goes OFF in Test Mode all of the branch out puts are cut off for safety rea sons Check whether the status indicator is lit red The current may be higher than the abnor mal current tripping value The S8M detects the S8M s internal temperature which can be 10 to 20 C higher than the ambient temperature The S8M doesn t disregard temporary errors so the dis play and output are main tained even after the cause of the alarm is cleared Seven segment Error Codes Section 8 2 Reference page L 1 Operation The peak output current is not The current may have d the peak output current 18 79 displayed and the displa
119. ng input The Reset Key cannot connect an output that was set to OFF not connected in Test Mode or cut off by a com mand via RS 232C communications 12 RS 232C Port Terminal Block RD SD and SG Connect to the communications lines RS 232C The terminal block has screwless terminals The S8M CP04 model without communications does not have these RS 232C terminals SD RD SG 8 to 11 Operation Keys Release button When removing a wire press here to release the lock 15 Internal Configuration 2 2 16 Section 2 2 Internal Configuration S8M CP04 R V o DC input power supply Voltage Display Switches Temperature detection circuit detection Power supply circuit RS 232C SDo communica RD tions terminals 399 Tripping alarm output TRP o Alarm output ALM Over temperature output 0 TMP External tripping input o TRG o je Pai at at ESA Current detec Cutoff tion resistor circuit Thermal fuse Fuse O O kd O O O V amh AE DC branch output 1 m Current lim iting circuit Processing Current detec Cutoff a Kr a T i j tion resistor circuit che Thermal fuse I Fuse O O O O O V 1 DC branch output 2 n Current lim iting circuit Communica ESA las tions circuit Current detec Cutoff tion resistor circuit T E DC branch output 3 4 l B Current lim iting circuit Current detec Cuto
120. ode address is missing one character m Response None There is no response because the return node address is unknown Missing Subaddress Invalid BCC Command Node No BCC m Response Node No Subaddress End code BCC ae IA e e The subaddress is 00 and the end code is 13 BCC error 104 Frame Structure Section 7 2 Invalid Subaddress and BCC Command Node No Subaddress BCC aia m Response Node No Subaddress End code BCC TS TIU sTewqp The end code is 13 BCC error There was a subaddress error but the BCC error has a higher error priority 7 2 3 FINS mini Structure PDU Structure The MRC Main Request Code SRC Sub Request Code and any required data are transmitted in the command frame m Service Request PDU MRC SRC Daa The MRC and SRC shown above MRES Main Response Code SRES Sub Response Code and the response data are transmitted in the response frame m Service Response PDU Normal Response MRES sRES Data m If the specified FINS mini command could not be executed service response PDU will contain only the MRC SRC and MRES SRES m Service Response PDU Specified FINS mini Command Not Executed The MRES and SRES become the response code when the command was not completed normally Type Code The following table shows the variable area type codes Variable Type Variabletype aw Swe Contents Word Monitored values Alarm status Unpublished information Se
121. om the A T display for branch output 4 the display will switch to the undervoltage alarm value setting display V U Return to V U display This parameter sets the undervoltage alarm value Press the Key to display the undervoltage alarm s set value SV The SV can be changed by pressing the amp and Keys see note The setting range is 18 0 to 26 4 V 0 1 V units Note Ifthe or Key is pressed for more than 2 s the SV will change in 1 0 V units instead of 0 1 V units Change the SV with the and amp Keys The S8M will automatically return to the V U display if no key is pressed within 3 s When the Key is pressed the SV display will flash When the flashing stops the new setting will be saved and the S8M will return to V U display If you want to confirm the new setting press the Key again from the V U display Note Ifthe voltage is below the SV for 80 ms the Alarm Output ALM will be turned OFF and the seven segment display will alternate between error code A21 and the measured voltage The alarm output can be cleared after the voltage rises above the SV 0 3 V for more than 500 ms Shared Parameter Settings Section 4 7 Setting the Overvoltage Alarm Value V O Voltage Over If the Down Key GJ is pressed from the undervoltage alarm value setting dis play V U the display will switch to the overvoltage alarm value setting dis play V O This parameter sets the overvoltage al
122. one branch output This restriction is given as a derating curve Use the S8M within the derating curve If necessary use forced cooling S8M CP04 or S8M CP04 R Maximum output current of 4 0 A Maximum output current of 3 8 A S8M CP04 RS coeoeoclboeooooo 1 p Q d l l l b jo IEEE l l l l l l l a ass 100 80 EE 60 40 EE 0 95 Indino uoueJuq euo Aue JO juauno perjdde wnwxe 0 0 E Ambient operating temperature C xiii Precautions for Correct Use B installation e Mounting Direction Always install the S8M on a DIN Rail For details refer to 3 2 Installation Standard horizontal mounting OK Upward facing mounting Other mounting directions e Mounting Space The long term reliability of the S8M can be increased by installing it properly and sufficiently considering heat dissipation Install the S8M so that the air flow circulates around it because the S8M is designed to radiate heat by means of natural air circulation Although two or more S8M Multicircuit Protectors can be installed side by side they must be separated from sources of heat such as the switching power supply installed to the input side by the distances given in 3 1 Installation Environment B input Voltage Input voltage range 19 2 to 26 4 VDC e The S8M provides abnormal voltage protection All branch outputs
123. otector and related devices Section 1 introduces the features and functions of the S8M Digital Multicircuit Protector and concepts related to its operation Section 2 identifies the S8M Digital Multicircuit Protectors components provides specifications and describes the basic functions Section 3 describes how to install and wire the S8M Digital Multicircuit Protector Section 4 describes how to set the S8M s various parameters Section 5 describes how to connect the branch outputs and test operation Section 6 describes how to install and operate the S8M Support Tool Section 7 describes how to use 58M communications Section 8 provides information on troubleshooting problems that may occur with the S8M Digital Multi circuit Protector The appendices provide a glossary of terms related to the S8M and flowcharts of S8M key operations NWARNING Failure to read and understand the information provided in this manual may result in per sonal injury or death damage to the Product or Product failure Please read each section in its entirety and be sure you understand the information provided in the section and related sections before attempting any of the procedures or operations given vii Read and Understand this Manual Please read and understand this manual before using the product Please consult your OMRON representative if you have any questions or comments Warranty and Limitations of Liability WARRANTY OMRON s exc
124. output is cut off due to an abnormal Lu voltage or abnormal current 3 AM 4 Alarm Output Turned OFF when the input voltage current 2 AMO or run time exceeded the corresponding set ies Over temperature Turned OFF when the S8M s internal temper TUE Output ature exceeded the over temperature output value s External Tripping Branch outputs can be cut off from an exter TRG Input nal operation The shutdown sequence is s neci applied in this case 1 Strip 10 mm from the ends of the I O signal wires 2 Press the terminal s release button all the way in and insert the wire into the round wire hole 3 When the wire is inserted be sure that the wire conductor is not exposed 4 Release the release button to lock the wire in place 5b After wiring verify that the wires are securely locked in the terminals TRP TRP ALM 4 ALM TMP TMP TRG TRG value RS 232C Port Wiring S8M CP04 R and S8M CP04 RS Only Section 3 4 m Internal Circuits pecurssenp wa s Output 30 VDC 50 mA max circuits Transistor outputs Tripping Alarm Output circuit Input 19 2 to 30 0 VDC Minimum signal widih 10 ms Over tempera ture Output cir cult Note The three alarm output circuits are configured as independent circuits so they can be used for either sinking or sourcing applications 3 4 RS 232C Port Wiring S8M CP04 R and S8M CP04 RS Only The S8M CP04 R and S8M CP04 RS
125. play time settings for branch outputs 2 3 and 4 The other startup sequence times are set just like the branch output 1 startup sequence time Press the amp Key to switch to the startup sequence time settings for branch outputs 2 3 and 4 Set those startup sequence times when required If the Down Key is pressed from the startup sequence setting display UPS for branch output 4 the display will switch to the shutdown sequence setting display DWS Note The startup sequence sets a delay before the S8M connects the branch out put after the power is turned ON Connecting the branch outputs in sequence instead of simultaneously can reduce the inrush current and reduce the load on the power supply For details on the startup sequence refer to 2 5 Startup Sequence Function 64 Special Settings and Communications Settings Section 4 8 Setting the Shutdown Sequence DWS Shutdown Sequence The shutdown sequence setting display DWS will be displayed when the Down Key K is pressed from the startup sequence setting display UPS for branch output 4 The shutdown sequence sets the shutdown sequence time for each branch output the time that the S8M waits before discon necting each branch output when the power is turned OFF Switch to the shutdown sequence set ting for branch output 2 Press the Key to display the shutdown sequence time set value SV for branch output 1 The SV can be c
126. purchased S8M will start in Setting Mode when it is turned ON for the first time In this case the seven segment display will show the current trip ping value for branch output 1 C V For details see page 56 If the S8M was previously turned ON and turned OFF in any mode other than Test Mode it will start in Run Mode the next time that the power is turned ON If the S8M was turned OFF in Test Mode it will start in Test Mode the next time that the power is turned ON To switch to Setting Mode from Run Mode or Test Mode select Setting Mode from the Mode Selection Menu as shown below The Mode Selection Menu can be displayed by pressing both the Up Key zj and Down Key amp simul taneously for 3 seconds Selecting the Operating Mode from the Mode Selection Menu If the S8M is switched to the Mode Selection Menu from Run Mode RUN select Run Mode will be displayed Press the Down Key B When the Down Key is pressed SET select Setting Mode will be displayed If the Mode Key is pressed the S8M will switch to Setting Mode The initial display for Setting Mode will be dis played The A unit indicator will be lit when a current is displayed Branch output number 1 is lit The initial Setting Mode display is the current tripping value for branch output 1 C V Once the S8M is switched to Setting Mode it will not return to Run Mode automatically To return to Run Mode press the
127. r the S8M CP04 RS only Current when abnormal current trip ping occurred in branch output 4 Redundant abnormal current tripping for the S8M CP04 RS only 106 Frame Structure Section 7 2 Address Name Data range 1020 Current when abnormal current trip 0000 to 0064 0 0 to 10 0 A ping occurred in branch output 1 1021 Current when abnormal current trip ping occurred in branch output 2 1022 Current when abnormal current trip ping occurred in branch output 3 1023 Current when abnormal current trip ping occurred in branch output 4 Address Name Dataran 1030 Current when overcurrent alarm 0000 to 0064 0 0 to 10 0 A occurred in branch output 1 1031 Current when overcurrent alarm occurred in branch output 2 1032 Current when overcurrent alarm occurred in branch output 3 1033 Current when overcurrent alarm occurred in branch output 4 Note Ifthe upper limit of the displayable range is exceeded the upper limit will be displayed If the lower limit is exceeded the lower limit will be displayed 107 Frame Structure Section 7 2 Parameters m Variable Type 81 Aadress Name Daarn 0079 to 0050 25 t0 80 C 0001 to O3E7 1 to 99 9 k 0004 Protection level 0000 to 0002 0 R W allowed 1 Limited R W 2 Limited read only Addess Name PDatrage Current tripping type for branch output 1 0000 or 0001 e apnd Velen Addess Name Datarangg 0020 Current tripping value for bra
128. ripping Output Current Can Be Set in 0 1 A Units Voltage Temperature and Run Time Can Also Be Monitored Monitoring Operation with the Seven segment Display The S8M Digital Multicircuit Protector incorporates four circuit protectors in one package The four 24 VDC semiconductor relay circuit protectors can be set digitally p u A BES S gt Unlike mechanical circuit protectors the S8M is equipped with the following functions that use digital processing and provide a variety of advantages The four branch outputs are independent of each other and are connected cut off by semiconductor relays In comparison to traditional mechanical circuit protectors the semiconductor relays are not consumable parts so they have a long lifetime Normal contact style S8M Digital Multicircuit circuit protector Protector e 6 S4 32 e mn Overcurrent tripping device Overcurrent detection circuit The S8M is a digital device so each branch output s tripping current can be set freely between 0 5 and 4 0 A 0 5 to 3 8 A for the S8M CP04 RS The abnormal current tripping value and overcurrent alarm value can be set as the circuit protector s rated currents In addition the tripping type can be set to standard detection tripping within 100 ms or instantaneous detection trip ping within 20 ms The S8M monitors the input voltage internal temperature and run time along with the input current The input current input vo
129. rrent 20 mA Insulation resistance 100 MQ min at 500 VDC between all charged sections and all non charged sec tions 100 MQ min at 500 VDC between all I O and I O signals communications 100 MQ min at 500 VDC between all I O signals and communications Vibration resistance No abnormality after 10 to 55 Hz at 0 375 mm single amplitude for 2 h each in 3 directions Shock resistance No abnormality after 150 m s 3 times each in 6 directions Conducted EMI Conforms to EN 61204 3 Class B Radiated EMI Conforms to EN 61204 3 Class B Safety standards UL UL 508 Listing UL 60950 1 UL UL 508 Listing Class cUL CSA C22 2 No 107 1 Tus Ets oor cUR CSA No 60950 1 EN VDE EN 50178 VDE0160 cUL CSA C22 2 No 107 1 EN 60950 1 VDE0805 Teil 1 cUR CSA No 60950 1 EN VDE EN 50178 VDE0160 EN 60950 1 VDE0805 Teil 1 External Output and The S8M has 3 external outputs the Tripping Alarm Output TRP Alarm Out External Tripping out ALM and Over temperature Output TMP as well as an External Trip Input Specifications ping Input TRG Each of these I O circuits is independent Tripping Alarm Output circuit Alarm Output circuit Over temperature Output circuit External Tripping Input circuit 19 Specifications Section 2 3 I O Circuit Configuration Circuit configuration I O specifications Tripping Alarm Out Output circuit 30 VDC and 50 mA max AFF Internal Circuit Configuration of t
130. s Test Mode nja a AHI Press for 3 s Test Mode cannot be selected in protection level 2 Y The Initialize Parameters command is displayed in S protection level 0 only If the S8M was previously turned ON and turned OFF in any mode other than Test Mode it will start in Run Mode the next time that the power is turned ON If the S8M was turned OFF in Test Mode it will start in Test Mode the next time that the power is turned ON The Mode Selection Menu can also be used to select the protection level or initialize the parameters see note Note The Initialize Parameters function restores all of the S8M s parameter settings to their default values For details on default values refer to 4 2 Parameter Setting Ranges 50 Switching the Operating Mode Section 4 3 Switching to the Mode Selection Menu A newly purchased S8M will start in Setting Mode when it is turned ON for the first time If the power is turned OFF with the S8M in Test Mode it will start in Test Mode the next time it is turned ON Otherwise once the S8M has been switched to RUN Mode it will start in Run Mode when power is turned ON Press both the Up Key amp and Down Key simultaneously for 3 seconds to display the Mode Selection Menu If no keys are pressed for 5 seconds while the Mode Selection Menu is displayed the S8M will automatically return to Run Mode 51 Switching the Operating Mode Section 4 3 Switching b
131. s ports Select the appropriate model for your application Modil RS 232C port Redundant tripping circuits SMOOR w o NG SEN CPOL RS SeN CPO4 1 The Support Tool cannot be used with the S8M CP04 which is not equipped with a communications port 2 Refer to 2 2 Internal Configuration for internal circuit block diagrams S8M Digital Multicircuit Protector AC DC Power Supply coe S8M Support Tool The S8M CP04 R RS can be connected REQ AiG a WM NM W Branch outputs 1 to 4 Elo Z gt HIE Brig HA The branch output is cut off when an abnormal voltage or abnormal current is detected In this case the tripping alarm output will be turned OFF and the corresponding error code will be shown on the seven segment display For details refer to 2 4 Basic Function Details Abnormal voltage When the power supply voltage exceeds 28 8 V all of the tripping branch outputs will be cut off by the semiconductor relays The S8M system monitors the voltage so it is not necessary to set parameters Abnormal current When a branch output s current exceeds the set value that tripping output is cut off by its semiconductor relay The tripping type for abnormal current detection can be set to standard detec tion tripping within 100 ms or instantaneous detection trip ping within 20 ms Overvie
132. se Node No Subaddress End code BCC T ry The subaddress is 00 and the end code is 16 subaddress error Subaddress Less than 2 Characters Missing SID and FINS mini Command Node No BCC a KA AKA The subaddress is missing one character m Response Node No Subaddress End code BCC ULP IPLE ROPA The subaddress is 00 and the end code is 16 subaddress error Subaddress Normal Missing SID and FINS mini Command Node No Subaddress BCC ae KA e m Response Node No Subaddress End code BCC 9 9 Jr Im The end code is 14 format error STX O i Subaddress Invalid Missing SID and FINS mini Command Node No Subaddress BCC ae e ee m Response Node No Subaddress End code BCC Xo o es E The end code is 16 subaddress error The subaddress error code is returned because the subaddress was received and the subaddress error has a higher error priority than the format error 103 Frame Structure Section 7 2 Missing FINS mini Command Node No Subaddress SID BCC Sm 9 19 9 Jem m Response Node No Subaddress End code BCC KAUNI The end code is 14 format error Incomplete MRC and SRC Codes in FINS mini Command Node No Subaddress SID FINS mini BCC EM E ILLLtU SIT MEAG The SRC is missing one character m Response Node No Subaddress End code BCC sp 9 119 9 1 0 The end code is 14 format error Incomplete Node Address gm Command BCC SITETI The n
133. sed after cut off within the seven seg the alarm 100 ms ment display Instanta When a current and the Tripping neous higher than the Alarm Output set value is TRP is turned detected the OFF branch output is cut off within 20 ms Abnormal current value Current 9 4 Standard detection 100 ms 15 s min Instantaneous detection 20 ms Tripping Alarm gt Output TRP Reset possible After sampling and converting each branch output s current every 1 ms the S8M processes the values in the CPU and controls the branch output cutoffs This method achieves high speed high accuracy tripping In addition to mini mize the effects of excessive currents caused by short circuits the S8M is equipped with built in current limiting circuits Consequently there is a region in which the current is limited as shown in the current tripping characteristics graphs Basic Function Details Section 2 4 Current value Current Tripping Characteristics Current actually flowing E Converted digital value Example sampling chart Time The current tripping characteristics vary slightly in different S8M models S8M CP04 R and S8M CP04 Model without RS 232C Port Current Tripping Characteristics When Standard Detection Is Selected Time ms 100 Characteristics when steady Setting range SS Tripping region Current limiting by internal circuits 9006000000000 eeeeeee0 08
134. stinguish between S8M models This operation saves the edited parameters in a file Select File Save New File to save the file 3 S8M Support Tool File Edit Communications Monitor Help Open File Save Save New File When a file is saved a note such as the output s name can be entered in the Comment Field The comment is not transferred to the S8M so it is just used as a comment in the Support Tool itself The file name is displayed as a title 88M Support Tool File Edit Communications Monitor Help Comment OMRON S8M CPO4 R Circuit 06319 0502 If a file comment was entered the comment will be displayed when the file is read This operation writes the edited parameters from the Support Tool to the S8M Connect to the computer with the RS 232C cable pu nds l al d Write parameters trtitr ALM TMP TRG Support Tool 1 Select Communications Download E 48M Support Tool File Edit Communications Monitor Help COM Pork Settings Comment Upload Download Initialize Parameters m 1 Setting parameters in the Parameter Setting Window does not directly set or change the S8M parameters online it sets the parameters offline in the 89 Setting and Saving Parameters Section 6 3 90 Note
135. t age current internal temperature and run time The moni tored PV is displayed on the seven segment display and can be read with key operations Setting Mode This mode is used to set parameters Branch output connec tions are the same as in Run Mode The S8M automatically starts in Setting Mode when the S8M is used for the first time Test Mode This mode is used to test operation The factory default set ting for all outputs is OFF so the branch outputs being used must be turned ON in Test Mode Note When the Support Tool is connected the S8M can be operated and parame ters can be set changed regardless of the S8M s operating mode Changing the The operating mode can be changed from the Mode Selection Menu using Operating Mode the Up and Down Keys Turning the Power ON for A newly purchased S8M will automatically enter Setting Mode when it is the First Time turned ON for the first time Refer to SECTION 4 Parameter Settings for details on setting parameters in Setting Mode e When starting operation or setting branch output connections after setting the parameters return to the Mode Selection Menu and switch to Test Mode Refer to SECTION 5 Trial Operation to Actual Operation for details on the operations in Test Mode e When changing to Run Mode after completing the trial run return to the Mode Selection Menu and switch to Run Mode If the power is turned OFF while the S8M is in Test Mode the S8M will enter Test Mode aga
136. t Settings Unit number Baud rate Data length Stop bits Sets the communications settings for the com puter s RS 232C port Parity Communications time out Upload Reads the S8M s parameters to the Support Tool Download Transfers the edited parameters from the computer to the S8M See note 2 Initialize Parame Initializes the S8M s parameters to their default values See note 1 ters Monitor Present Values Reads the input voltage each branch output s current and peak output current the total current internal temperature and run time Connection disconnection and reset operations can be executed Status Reads the input voltage each branch output s current peak output current total current internal temperature run time external signal trips and each branch out put s power ON OFF status Reset operations can be executed Displays the Support Tool s version number Note 1 If the Initialize menu item is selected all of the S8M s parameters will be reset to their default values The operating mode will be switched to Set ting Mode and all branch outputs will be disconnected 2 Initial power ON processing is performed when the parameters are down loaded and the S8M will start in Run Mode The edited parameters will be effective when the S8M restarts Immediately afterward the software prompts the user to connect all branch outputs If the OK Button is clicked the cut off branch outputs wil
137. t is ON for more than 10 ms 2 The shutdown delays specified by the shutdown sequence times will be applied before disconnecting each output 3 When the TRG input goes ON the seven segment display will indicate TRG 4 Once the TRG input goes OFF the cut off branch outputs can be recon nected by pressing the Reset Key for 3 s or longer 5 When all outputs are cut off simultaneously in Test mode or the shutdown sequence operation is executed via communications the branch outputs will be cut off regardless of the external tripping input setting 66 Special Settings and Communications Settings Section 4 8 Unit Number Setting UNO Unit Number The unit number setting display UNO will be displayed when the Down Key B is pressed from the external tripping input display TRG for branch out put 4 Set the S8M s unit number when using 1 N communications with the host computer The unit number can be left at its default value 0 when communicating 1 1 with the computer Switch to the baud rate set ting Press the Key to display the unit number setting The setting can be changed by pressing the and Keys see note Note If the N or amp Key is pressed for more than 2 s the SV will change by 10s instead of 1s The setting range is 0 to 31 The unit number can be left at O when communicating 1 1 with the computer Change the SV with the zj and Keys The S8M will automatically return to the UNO
138. tions Monitor Help COM Pork Settings Comment TT NNI Download Initialize Parameters Du e L 2 When Upload is selected the following popup window will open 58M Support Tool X ae P Data will be uploaded From the 58M Continue 3 Click the Yes Button to start the upload If the parameters were read nor mally the following popup window will be displayed S8M Support E Upload completed Click the OK Button The parameters can be uploaded regardless of the S8M s operating mode 91 Monitoring Section 6 4 6 4 Monitoring 92 Use the Monitor operations to monitor the S8M s operating status Select Monitor Present Values or Monitor Status 3 58M Support Tool File Edit Communications Monitor Help Comment The following Monitor Update Interval Window will be opened when either monitor operation is selected Set the sampling time in the Update interval s field Monitor Update Interval xj Update intervalla 1 60 Ol Cancel 3 Enter the sampling time and click the OK Button to switch to the monitor window Monitoring Section 6 4 Monitoring Present Values Present Values Input voltage s Outputs Branch output Peak output current A3 current A Peak output ELI ES Branch output Total current A 0 0 Internal temperature aC Run time kh 0 0 Shunt output Current
139. tput terminals are not isolated Do not perform dielectric strength tests between the input and output terminals B Voltage Display The voltage detection function monitors the voltage at the power input terminals Measure the voltage at the branch outputs to confirm that the output voltage is correct B Series Connections An S8M cannot be connected in series to another S8M s output and branch outputs cannot be connected in series e Do not connect S8Ms in series Incorrect AC DC power supply e Do not connect S8M branch outputs in series Incorrect AC DC power supply Incorrect AC DC power supply XV B Parallel Connections An S8M cannot be connected in parallel with another S8M s output and branch outputs cannot be connected in parallel e Do not connect branch outputs in parallel Incorrect AC DC power supply Incorrect E Backup Device Connections Observe the following precautions when using a backup device such as one from OMRON s S8T Series e f a backup device is connected to an S8M branch output the backup current will be supplied to other branches through internal circuits and internal parts may also be deteriorated or damaged When using a backup device with the S8M connect the backup device to the power input side e When connecting a backup device to the S8M input side the backup time will be shorter than normal due to internal power consumption Always confirm the backup
140. tting Mode SET will be displayed on the seven segment display The S8M will enter Run Mode from this display if the Mode Key is pressed Also the S8M will enter Run Mode automatically if neither the Up Key zj nor Down Key B is pressed within 5 s If the Down Key B is pressed SET will be displayed At this point the S8M will switch to Setting Mode if the Mode Key 5 is pressed If no keys are pressed within 5 s the S8M will automati cally return to the last operating mode Setting Mode if the S8M is new For details on parameter settings refer to SECTION 4 Parameter Settings If the Down Key SI is pressed TST will be displayed At this point the S8M will switch to Test Mode if the Mode Key is pressed If no keys are pressed within 5 s the S8M will automati cally return to the last operating mode Setting Mode if the S8M is new Press the Mode Key amp to change to Test Mode The flashing on display indicates that the S8M is ready to connect branch output 1 75 Connection Disconnection Test Section 5 2 5 2 Connection Disconnection Test Before performing the connection disconnection test in Test Mode always verify that it is safe to do so and will not adversely affect the system The flashing on display indicates that the S8M is ready to connect branch output 1 To connect branch output 1 press the Mode Key o Flashing Not lit If the Mode Key
141. tting and checking set values 105 Frame Structure Section 7 2 Addresses Monitored Values m Variable Type 80 Address Name sra FFEC to 0064 20 to 100 Address Name Betrange 0010 Present current branch output 1 0000 to 0064 0 0 to 10 0 A Peak output current branch output 1 0000 to 0064 0 0 to 10 0 A Note Ifthe upper limit of the displayable range is exceeded the upper limit will be displayed If the lower limit is exceeded the lower limit will be displayed Alarm Status The alarm status is used to read the controller status Alarm Cause m Variable Type 80 Address Name Daarn 1000 Voltage when abnormal voltage trip 00A3 to 012C 16 3 to 30 0 V ping occurred 1001 Maximum voltage after overvoltage O0A3 to 012C 16 3 to 30 0 V alarm occurred 1002 Minimum voltage after undervoltage 00A3 to 012C 16 3 to 30 0 V alarm occurred Note The run time and temperature are represented by variables 0002 and 0003 respectively Address Name Datarage Current when abnormal current trip 0000 to 0064 0 0 to 10 0 A ping occurred in branch output 1 Redundant abnormal current tripping for the S8M CP04 RS only Current when abnormal current trip ping occurred in branch output 2 Redundant abnormal current tripping for the S8M CP04 RS only Current when abnormal current trip ping occurred in branch output 3 Redundant abnormal current tripping fo
142. ture exceeds the set value continuously for more than 1 s the seven segment display will show error code A30 and the Over tempera ture Output TMP will go OFF The error display and Over temperature Output are reset automatically when the temperature has been below the set value 3 C for more than 5 s Setting Default Operation Seven Conditions range value segment required to display reset 25 to 80 C The output is Alternately The Over Reset automati 80 C turned OFF when displays temperature cally when the the temperature is error code Output temperature falls higher than the A30 and the TMP is below the set set value continu temperature turned OFF value 3 C ously for more C than 1 s 28 Basic Function Details Section 2 4 B Operation t Over temperature output value t 3 C Temperature C 5s Error display and Over temperature Automatic reset Output TMP The Over temperature Output TMP operates independently of the other external outputs This output can be used to start an exhaust fan or air condi tioner to reduce the temperature in the control panel Example Application The output is normally closed ON and goes OFF when there is an error so receive the TMP output through an auxiliary relay In addition the output will go ON momentarily when the power is turned ON so receive the output through a time delay relay For details refer to page 4
143. ty Command too long The command is too long Normal completion No error 116 Operation Command Section 7 8 7 8 Operation Command This service performs operation command processing m Service Request PDU MRC SRC Command Related Code Info 9 1 DO 1 5 2 2 2 2 m Service Response PDU MRC SRC j Response Code 1 Command Codes and Related Information Command content Related Information code Connect Each bit corresponds to a branch output Multiple branch outputs can be specified 01 Branch output 1 02 Branch output 2 04 Branch output 3 08 Branch output 4 Disconnect Cut off Each bit corresponds to a branch output Multiple branch outputs can be specified 01 Branch output 1 02 Branch output 2 04 Branch output 3 08 Branch output 4 Startup sequence Always set to 00 03 Shutdown sequence Always set to 00 CE Reset switch Always set to 00 Clear peak output Each bit corresponds to a branch output current Multiple branch outputs can be specified 01 Branch output 1 02 Branch output 2 04 Branch output 3 08 Branch output 4 Always set to 00 Note When a command is executed for all of the outputs but the processing could not be performed on one or more outputs the processing will still be per formed on the other outputs In this case a normal response will be returned so read the controller status to check whether or not the outputs were actually connect
144. type setting on page 58 The detection of short lived abnormal currents can be prevented by changing the setting from instantaneous detection detection after 10 ms to standard detection detection after 80 ms Over temperature Output When error code A30 over temperature and the temperature are displayed A30 Displayed alternately on the seven segment display there are two possible causes Check whether the S8M s internal temperature is too high or the setting of the over temperature output value is too low Run Time Alarm A23 When error code A23 run time alarm is displayed on the seven segment dis Displayed play check whether some component in the system requires maintenance or there is a problem with the setting of the run time value e f outputting run time alarms is not required set the alarm value to 0 0 kh e When you want to clear the run time execute the clear run time operation in Setting Mode see page 71 The run time cannot be cleared from the Support Tool Reading and Clearing Errors from the Support Tool Select Monitor Status or Monitor Present Values to display the Status Window or Present Values Window Errors can be checked and cleared from these windows First identify and eliminate the cause of the error and then click the Reset Button Example Error Display in the Status Window WWW x Message Input voltage Morrmal 1 Active abnormal current trip T F A Current when output was cut off
145. un Mode and then reset the error 1 When the S8M is shipped from the factory all branch outputs are set to OFF disconnected A newly purchased S8M will automatically enter Setting Mode when it is turned ON for the first time After setting the pa rameters switch to Test Mode connect the branch outputs that will be used and then switch to Run Mode 2 If a branch output is OFF disconnected when the mode is changed from Test Mode to Run Mode it will not be connected ON in Run Mode 3 If the power is turned OFF while the S8M is in Test Mode the S8M will start in Test Mode the next time that the power is turned ON but all branch outputs will be OFF The S8M will be operational even when parameters are being set with the Support Tool If data is downloaded from the Support Tool parameters transferred from the Support Tool to the S8M the parameters in the 88M will be updated immedi ately Table of Basic Functions Section 1 3 1 3 Table of Basic Functions There are three ways for the S8M s tripping function to operate tripping by user set parameters tripping by the S8M s system monitor and tripping by external operation There are three outputs the Tripping Alarm Output Alarm Output and Over temperature Output Tripping Alarm Functions Operating range Parameter Outputs cut off External Error code settings output displayed Abnormal voltage Automatically trips for voltage over None All branch outputs TR
146. upport tool on your computer WARNING This computer program is protected by copyright law and international treaties Unauthorized duplication ar distribution of this program ar any portion of it may result in severe civil ar criminal penalties and will be prosecuted to the maximum extent possible under the law Cancel Click the OK Button to start the installation 2 Follow the menu directions and click the Next Button to complete the in stallation 83 Installing the Support Tool Section 6 1 3 The following nstallation Complete message will be displayed if the instal lation was completed normally Click the Close Button T 58M support tool ici xl Installation Complete 58M support tool has been successtully installed Click Close to exit Please use Windows Update ta check for any critical updates ta the WET Framework ance 4 Ifthe installation was completed normally there will be an OMRON direc tory in the Programs Menu and an S8M Support Tool program in the OMRON directory 84 Starting the Support Tool Section 6 2 6 2 Starting the Support Tool To start the S8M Support Tool select Programs OMRON S8M Support Tool S8M Support Tool from the Start Menu Lm OMA OM J Sa 5 JFE 00 E SaM Support Tool Programs When the Support Tool starts it opens the Parameter Setting Window s Basic Settings Tab Page The Parameter Setting Window is made up of the Basic Settings and Br
147. w of Features and Functions Section 1 1 Safety Functions External Outputs Tripping Functions Using External Signals Additional Functions Startup Sequence Function Shutdown Sequence Function The S8M CP04 RS UL Class 2 output model has redundant tripping circuits In addition to the regular abnormal current tripping function 0 5 to 3 8 A that is set with a parameter there is a built in system tripping circuit that detects currents over 4 0 A All 58M models are equipped with a short circuit protection fuse and thermal fuse to provide protection The S8M has 3 external outputs the Tripping Alarm Output TRP Alarm Out put ALM and Over temperature Output TMP The Tripping Alarm Output is output when an abnormal current or abnormal voltage is detected The Alarm Output is output when there is an overcurrent overvoltage undervoltage or excessive run time The Over temperature Out put is output when the temperature exceeds the rated temperature Tripping Alarm An abnormal voltage over 28 8 V was The output status is Output TRP detected retained when power is A current exceeding the abnormal cur interrupted but can reset rent tripping value was detected with the reset operation Alarm Output A voltage below the undervoltage This output can be reset ALM alarm value was detected with the reset operation If A voltage over the overvoltage alarm the alarm is cleared when value was detect
148. will be cut off if the input voltage exceeds 28 8 VDC This function however does not protect loads and internal parts from high voltages in all cases Be sure the input voltage is within the rated range e Outputs may be cut off by the abnormal voltage protection with loads that generate reverse peak electro motive force e A voltage drop occurs within the S8M Be sure to consider the effect of the voltage drop on the output voltage B input Power Supply Selection e When selecting a power supply be sure to add the S8M s internal power consumption about 10 W to the power consumption of the loads e The overcurrent protection characteristics of the power supply connected to the input side can cause a voltage drop possibly resulting in a cutoff e f the capacity of the input power supply is too small compared with the load the overcurrent protection characteristics of the power supply can prevent the S8M from starting or can cause a voltage drop possibly resulting in a cutoff e f secondary voltage of the power supply rises or falls too slowly the overcurrent protection characteristics of the power supply can prevent the S8M from starting or can cause a voltage drop possibly resulting in a cutoff B Tripping Performance There are two tripping types that can be used to detect output current characteristics Standard detection overcurrents lasting 80 ms are cutoff within 100 ms and Instantaneous detection overcurrents lasting 20 ms
149. wn sequence setting display DWS for branch output 4 The external tripping input TRG can be enabled and disabled independently for each branch output Switch to the external trip ping input set ting for branch output 2 Press the Key to display the external tripping input setting The setting can be changed by press ing the S or B Key ON enabled valid The corresponding branch out put will be cut off when the TRG input is ON OFF disabled invalid The TRG input has no effect on the corresponding branch output Change the setting with the amp or amp Key The S8M will automatically return to the TRG dis play if no key is pressed within 3 s O NN M V A kh C s When the Key is pressed the SV display will flash When the flashing stops the new setting will be saved and the S8M will return to TRG display If you want to confirm the new setting press the Return to TRG display Key again from the TRG display Press the Key to switch to the external tripping input settings for branch outputs 2 3 and 4 Enable disable the external tripping input for those branch outputs as required If the Down Key B is pressed from the external tripping input setting display TRG for branch output 4 the display will switch to the unit number setting display UNO Note 1 If the External Tripping Input TRG is enabled for any branch outputs those outputs will be cut off within 20 ms when the TRG inpu
150. x Residual voltage 2 V max Display func Input voltage display Display range 17 0 to 30 0 V tions detection Display accuracy 296 rdg 1 digit max Output current display Branch output display range 0 0 to 10 0 A detection Peak output current display range 0 0 to 10 0 A Total current display range 0 0 to 40 0 A Display accuracy 5 FS 4 A 1 digit max Run time Display range 0 0 to 99 9 kh Display accuracy 296 rdg 1 digit max Temperature display Display range 10 to 100 C detection Display accuracy 2 C 1 digit max External Tripping Input TRG 19 2 to 30 VDC minimum signal width 20 ms tripping after input within 10 ms the shutdown sequence set time Startup sequence A delay can be enabled disabled for each branch output setting range 0 0 to 99 9 s in 0 1 s units Shutdown sequence A delay can be enabled disabled for each branch output setting range 0 0 to 99 9 s in 0 1 s units Supported RS 2326 18 Specifications Section 2 3 iem Moda SEM CPO4 RS Other 25 to 85 storage 25 to 90 Withstand voltage 1 0 KVAC for 1 min between all charged sections and all non charged sections detection current 20 mA 500 VAC for 1 min between all I O and I O signals communications detection cur rent 20 mA 500 VAC for 1 min between all I O signals and communications detection current 20 mA 500 VAC for 1 min between input signals and all output signals detection cu
151. y exceeded the measurable in Run Mode shows range The peak SU current is higher than the abnormal cur rent tripping value but the output has not been cut off The output was not designed for a current that high but the output is cut off as soon as power is supplied The connection cannot be reset immediately after it is cut off RST is displayed Branch out put cutoff The output was reset but it was immediately cut off again The run time alarm was out put so the equipment was Saving or maintenance checked and other parts were replaced but the alarm could not be cleared All of the outputs were discon nected when the parameters were initialized The S8M provides a startup delay so that inrush currents do not cause tripping at star tup The output will thus not be cut off at startup but the maximum current will be recorded as the peak output current The abnormal current trip ping type may be set to instantaneous With instan taneous detection an abnor mal current is detected very quickly and the output may be cut off due to excessive cur rent during equipment opera tion There may be a large number of devices connected to the output The more devices that are connected the higher the operating current To protect the S8M s internal circuits at least 15 seconds must pass before a cut off output can be reset The original cause of the cut off may not
152. y is pressed within 3 s IST NUT DL LI 4 VA mes When the Key is pressed the SV display will flash When the flashing stops the new setting will be saved and the S8M will return to A V display If you want to confirm the new setting press the Key again from the A V display Return to A V display Note Ifthe current exceeds the SV for 80 ms or 10 ms the Alarm Output ALM will be turned OFF and the seven segment display will alternate between error code A22 and the measured current The alarm output can be cleared after the current falls and remains below the SV for more than 500 ms The overcurrent alarm type is set with the following A T alarm type display The alarm type can be set in protection level 0 only 58 Individual Branch Output Settings Section 4 6 Setting the Overcurrent Alarm Type A T Alarm Type If the S8M is in protection level 0 press the amp Key from the overcurrent alarm value A V display to switch to the overcurrent alarm type setting A T dis play Select the overcurrent alarm type for branch output 1 ar Go to page 60 for the branch Press the Key to display the setting INS Instantaneous detection operates if the output 2 current excessive current lasts over 10 ms tripping value USU Standard detection operates if the excessive setting E a A L m E a current lasts over 80 ms i The setting can be changed by pr

S8M Digital Multicircuit Protector User`s Manual

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