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EML1101 Testversion

1. 15 7 7 Control Application Pont 15 7 8 Emergency mode activated at XX of total sheddable load power 15 7 9 Other settindS cartas 15 7 94 Measuring period Ee 15 7 9 2 Counter constant P_act4 ME ac nica ana 16 7 9 3 Current transf ratio Ip Is P act1 O MP acni 16 7 9 4 Voltage transf ratio Vp Vs P act1 OMP ach 16 7 9 5 Average over P act1 O M P_act2 uuuuu LIII LII IIN 16 7 9 6 Counter constant Ab 16 7 9 7 Cosphi Alarm at cosphi xx 16 7 9 8 Bus address ecce eeneg 16 7 9 9 Auto summer winter time changeover nemen 16 7 9 10 OPTIONS d EN NC UF 16 7 9 10 1 Number of Profiles Used 16 7 9 10 2 Highest EMD Address 16 7 9 10 3 Type of profile switching 17 7 9 10 4 Active Pulse Monitoring Alarm 19 7 9 10 5 L Group 19 7 9 10 6 Units 19 User Manual EML 1101 Contents Load settings 20 Load name 20 iii ep nde 20 i HEAR HYN AT AR a FC ee NY FA 21 Preference 21 Channel SIC M 21 Minimum OFF me 21 Maximum OFF me 21 Minimum ON time coooocccccccnconononcnnncnnnnnnnononnnnnnnnn conan LLY ELLYLL LL RLIY nn EE nn nn nn LL sn nen LEL LLY LLY LLD FL nene 22 RM LET e TS MEER RERO P 22 Changing load settings of group channels seen 22 OUtPUt aan ea Eo eae Mia ea bte Ada 22 FUNCUON TESTO 2c rueda putt gydd y t ia 22 Printer routines 23
2. P acc Face y P con 100 P max 0 Emergency mode A condition activated when the control characteristics can no longer be maintained under pre set conditions The following characteristics are valid during emergency mode e Minimum ON time and maximum OFF time are ignored Minimum OFF time however is still taken into account e Loads with priorities 1 to 3 are included in the control system e The emergency load shedder channel is activated if EML 1101 cannot reduce P_trend within limits during this mode 49 Annex PRELIMINARY User Manual EML 1101 Emergency load shedder channel An additional load channel which is activated last during emergency mode Correction power As difference between target maximum demand P_max and P_trend multiplied by measuring period divided by the remaining Time in the actual mesuring period It is abbreviated by P corr If P corr is positive then extra power is available to switch on loads without P trend exceeding target maximum demand If P corr is negative then loads will be switched off intelligently to prevent P trend from becoming too high The switching off of loads is performed according to priorities and other criterions T P corr P trend P max T 1 Status displays Symbols appearing at the bottom left of dot matrix display of EML 1101 It shows the statuses of channel instrument Virtual add on units These are switching channels not physically present but o
3. Hd4O UIW J9MOd dnous yotd aweu peo ueu uonejs 45 Annex PRELIMINARY User Manual EML 1101 19 5 Terminal assignments 1 FRAKO Starkstrombus channel A BE FRAKO Starkstrombus channel B SS Oooo O IIA FRAKO Starkstrombus GND Add on bus channel A Add on bus channel B Add on bus GND Active pulse input1 For connection to a potential free contact against ground 3 7 Active pulse input2 Reset input self For connection to a potential free contact adjusting target maximum demand against ground Reactive pulse input For connection to a potential free contact against ground 10 Time pulse input For connection to a potential free contact against ground 11 Profile input 1 for connection a potential free contact against ground 12 Profile input 2 For connection a potential free contact against ground 13 Ground connection for all inputs Ground 17 Load connection NO contact Load 3 with hardware version 1 3 upwards wih antea varon 3 up with hardware version 1 3 upwards Emergency load shedder power supply Pole BE lx 00 AAA Powerconection N 39 Power connection PE 46 User Manual EML1101 19 6 Connection diagram Important When working on EML 1101 ensure that the unit is disconnected from mains Although the EML 1101 is disconnected from mains the circuits leading to switch contacts may still be
4. 3 Press the reset button for ca 5 seconds see 19 1 factory settings in the contact compartment of the EML 4 After ca 30 seconds the EML should start with the old software version 3 You can now start the software update again In order to carry out a software update OPT SW disk 1 must be inserted in drive a The FRAKO bus connection contact 1 3 may not be connected Do you wish to continue Yes No After confirmation of this prompt the settings and the historical data will be saved The data transfer is carried out over the serial interface after the settings are saved The progress of data transfer is displayed in the form of a status bar If problems should arise a message will appear in the dialog window Loading progress is shown in two progress windows EHL1101 Software update Transfering bootloader and program Status Transfering bootloader 4424 bytes Progress Data transfer EML Software update Transfer from boot loader and program Status Transferring boot loader 728 bytes Progress Data transfer 1 Cancel EML1101 Software update Transfering bootloader and program Status Transfering program 13104 bytes Progress Data transfer 2296 EML Software update Transfer from boot loader and program Status Transferring program 1232 bytes 38 User Manual EML 1101 Annex Progress Data transfer 15 Stop
5. Four membrane buttons Four row illuminated LCD 7x PG cable gland entry to removable contact blocks in housing 1x sub D connector Max 2 5 mm Max 2A external as reguired 296 x 260 x 133 mm W x H x D see Figure 2 Enclosure on page 48 IP53 Approx 3 6 kg 1 Flammability UL94 HB 1 4 With screws 0 C to 45 C 20 C to 60 C 80386 40MHz CPU 4MB RAM VGA graphics card Windows 95 Windows 98 Windows NT Windows2000 1 The entry entered is a standard value which is determined by the standardized check devices The scaling concerns the raw material Variations may occur due to the effects of processing and other material thicknesses 2 Windows is a registered trademark of the Microsoft Corp 29 Troubleshooting PRELIMINARY User Manual EML1101 17 Troubleshooting 17 1 Checking programmed values 17 2 Control on the instrument First check all the settings entered The individual measuring points as with the settings are to be checked thoroughly and their values shown on the display and compared with their entries 17 3 Printout from a directly connected printer Select the Printer routines sub menu on the EML Jump to the menu item Basic settings with cursor buttons and initiate printout by pressing CR button Jump to Load settings menu item and confirm by pressing CR button This is only possible if there is a printer connected to the serial interface To check the previous measuring periods print
6. Status display Hl E a a A Station activated X Station deactivated Move between the individual stations using the cursor buttons By pressing CR button the status is changed e g deactivated or activated Pressing MENU button will revert back to the standard display Exception When the parameter highest EMD address of the EML 1101 is set to O the following message is displayed when you change to the Add on stations or Activate deactivate stations No activation possible due to highest Press the CR button to change the highest EMD EMD address set to 0 address You then access the setting for the highest EMD address in in D i A E Basic Settings Other Settings Options After setting press the MENU button repeatedly until the standard display appears If no change is desired press the MENU button The factory setting for the highest EMD address is O 10 2 Displaying stations In this menu item EMD 1101 Add on Stations and load status can be displayed Changing between the station display 1 3 to 8 10 is done with cursor buttons 2 3 DNEUNNEUNN xxxxxxxx XXXXXXXX UU Status display i Load switched on by control system Load switched off by control system X Deactivate station E Displaying a constantly on channel relay closed Displaying a constantly off channel relay open Displaying a channel that has been activated by the system timer EMT 1101 See section
7. User Manual EML 1101 Technical Data 16 Technical Data EML1101 Maximum Demand Controller Power supply Voltage Frequency Power consumption Inputs General 2 active pulse inputs one of which can be used for resetting target maximum demand 1 reactive pulse input 1 time pulse input 2 profile inputs Outputs 4 relay contacts Switching channel 1 relay contact emergency load shedder 1 operating fault contact 1 hardware fault contact 1 serial interface 1 add on interface 1 FRAKO Starkstrombus interface Operating elements Display element Connections Cable diameter Fuse Mechanical construction Dimensions Ingress protection Weight Protection class Housing Mounting Operating conditions Ambient temperature Storage temperature OPT SW Software Hardware requirements PC Software requirements Operating system 230 VAC 15 to 10 45 to 65 Hz 26 VA SO interfaces to connect to potential free contacts Voltage for open contact 24 V Max resistance 800 o Short circuit current 15 mA 0 1 to 20 Hz 0 1 to 20 Hz 10 15 30 60 minutes For selecting 4 profiles 4 changeover contacts 250V 4A 1 changeover contact 250V 4A 1 changeover contact 250V 4A 1 NC contact 250V 4A 9 pole Sub D jack RS232 for connecting a PC or printer 9600 baud 1 start bit 1 stop bit For connecting 2 4 10 EMD1101 For connecting to FRAKO Energy Management System
8. P3 P4 M Current target maximum demand Profiles kW MW 0 6500 Mi current a 1 2 3 4 with activated self adjusting P1 P2 P3 P4 target maximum demand Ml nit Initial value target maximum demand KW MW 0 6500 MI Viu and Profiles 1 2 3 4 with activated self d P4 P2 adjusting target maximum demand P3 P4 M ue Upper limit target maximum demand KW MW 0 6500 dal Profiles 1 2 3 4 with activated self demand P1 P2 adjusting target maximum demand P3 P4 5 Peak power P1 Set peak power Profile 1 2 3 4 KW MW 0 6500 P2 P3 P4 Control delay Pause between individual switchings e 160 7 Control As of how many X P of the set target 0 75 application point maximum demand control is to become fully effective active at X Other settings Measuring period Pre set time by electricity company 10 15 30 60 Counter constant Counter constant referenced to 1kWh 1 99999 P acti MP act2 Voltage transfer Voltage transformer ratio 1 9999 P act Mk act U_primary U_secondary an Current transfer Current transformer ratio 1 9999 P act Mk act2 _primary l_secondary SC Counter constant Counter constant referenced to 1kWh EE 1 99999 Q Average over Number of active pulses for mean value P act1 Only affects display a IMP act2 Q ES Cosphi lt XX EA Gen ke _ StarkstrombusO Auto Activates deactivates automatic setting of AAA No M time changeover E al 40 User Man
9. The display does not change on the EML during the update The LCD display does not change until the data has been copied into the FLASH EPROM Please wait The EML is ready when the normal power display is shown After the EML is initialised the settings and historical data are automatically written back to the EML The end of this process is confirmed by the following message Information X 1 e The EML is now ready for operation Click OK to complete update The EML is now ready Click OK to conclude the update OK Program update error Check if the FRAKO bus is disconnected and that the instrument is switched on Should one of these be the case remedy it and restart the update Upgrade to Mlor L An upgrade to a higher FRAKO system option can only be carried out with EML software version 1 70 or higher If this is not the case a software update is necessary The upgrade is started over the same menu item Settings EML software update as a software update The activation code tells OPT SW to which version or system option the EML is to be updated upgraded No data is lost in the case of an upgrade to a higher FRAKO system option 39 Annex PRELIMINARY User Manual EML 1101 19 2 Table of settings Item Designation_____ Description_______________ jUnits__ Value range Basic settings S O Basic settings Target maximum Set target maximum demand Profiles 1 2 KW MW 0 6500 demand P1 P2 3 4
10. Accepting values and settings 6 2 Programming mode 6 2 1 Selecting program items Use one of the two cursor buttons to call up the settings menu 6 2 2 Activating programming mode A prompt is given for the ID number when the appropriate item is seen in the display The last 4 digits of serial number are to be entered If the ID number has already been prompted from a previous entry then it will not be prompted again for the next hour 6 2 3 Setting parameters If a cursor appears in the display then the individual numbers can be adjusted by pressing the cursor buttons Pressing CR button moves the cursor to the next position 6 2 4 Accepting settings The setting are accepted by pressing MENU button If an invalid entry e g time date has been entered the old settings will appear In this case repeat the entry 12 User Manual EML1101 6 3 Menu Structure Basic settings Target maximum demand P1 P2 P3 and P4 M current target maximum demand P1 P2 P3 and P4 Mi Initial value target maximum demand P1 P2 P3 and P4 MI Upper limit target maximum demand P1 P2 P3 and P4 Peak power Control delay Control application point at XX of target maximum demand Emergency mode activated at XX of total sheddable load power Other settings Measuring period Counter constant P_act1 O M P_act2 Current transf ratio Ip ls P_act1 O M P_act2 Voltage transf ratio Vp Vs P_act1 Q M P_act2 Average over P
11. 3 Connecting Load Channels EML 1101 load channels consist of switching contacts which consist of a normally open NO and normally closed NC contact The NC part of the switching contacts takes on the following states in the listed operation conditions of EML Load on NC of the relay is closed Load off NC of the relay is open No power supply NC of the relay is closed Every channel of the add on stations of the EMD1101 have only NC contacts These can be used either as NO or NC contact in the load settings The position of the relay in emergency power off can be set with a DIP switch row on the EMD 3 2 4 Alarm Contact for Hardware Error The alarm contact for hardware error is a potential free contact The relay is open in normal operation and energises if the processor of EML 1101 fails Important The switching and alarm contacts may only have a maximum rating of 250 V 4 A 3 2 5 Alarm contact The contact is a potential free switching contact The relay reacts when one of the following errors occur Target maximum demand exceeded Peak power exceeded Cosphi exceeded too small Commissioning PRELIMINARY User Manual EML1101 EMD error add on bus error FRAKO Starkstrombus6 defect No time pulse No pulse in input 1 only with activated active pulse control No pulse in input 2 only with activated active pulse control No pulse in input 3 only with activated active pulse control Mains power off Error in cl
12. M ao EML 1101 PC Correct connections of cable 18 Application instructions 18 1 Bus cable longer than 1 km To extend the bus cable length a Starkstrombus repeater EMB1101 can be used for the FRAKO Starkstrombus and the add on bus 18 2 Shielding The shieldings of FRAKO Starkstrombus and extension bus have to be isolated galvanically from each other If a bus cable is used in which both bus cores are laid and the shielding on EMIS 1500 or EMG 1500 PN is grounded then the shielding at EML 1101 is not to be grounded Do not connect the shielding to the metal cable gland it should only be connected to the GND terminal 3 If this is not done then errors can occur in FRAKO Starkstrombus and result in EML 1101 not being recognised on the bus 18 3 Target Maximum Demand This entry is limited to 6 500 MW or 6500 kW depending on the setting of unit Changing unit on the EML from kW to MW Can be done unsing OPT SW software or with the front fascia buttons of the EML 1101 as follows Basic settings Other settings Option Units 33 Application instructions PRELIMINARY User Manual EML1101 18 4 Operating OPT SW via modem The EML modem is configured via a terminal program Important Be sure that the baud rate of the terminal program is set to 9600 baud The baud rate set in the terminal program is adopted by the modem If the wrong baud rate is set no connection can be made Command Meaning
13. Printing basic Settlligs cce utere eder aa 23 Printing load SEIS eiii arae nine a Na ad el 23 aes 23 rs 23 ie Mi R O o M 24 Resetting error ei CEET 24 Printing present day s power CUme eene eene nnne ener enne 24 Printing previous day s power CUVE eene 24 Power maxima of the last 50 days 25 Power maxima of the last 48 months 25 Event TE ES 25 Deleting printer qUele ecrire cete tee nne ione nne he FL eor ren aged o recrea 26 Add on stations 26 Activating deactivating stations sssssseeeeeenn enm ene ennemis 26 Displaying Staton RETE 26 Virtual add OM UNITS 27 Activating virtual EMD recessies decere etai ee etie e E direi C Eae ied iun 27 External synchronisation 27 Setting time 28 Counters 28 Write protect 28 Info device 28 Technical Data 29 Troubleshooting 30 Checking programmed Values melee eddies 30 Gontrol on the E Dn 30 Printout from a directly connected printer enne 30 Checking the system when running 30 Standard display vitesse rie eere EE EEE or e an iti ade 30 Display of Switching channels ceret cree eden ie LWYDD AY ee dne dae n ta FN SYDD FYN E 30 Sources Of CMON EET 31 Application instructions 33 Bus cable longer tham 1 Km oir iia SEENEN ENEE gedd 33 sn 33 Target Maximum Demand sss n enne nnne nnn 33 Opera
14. act1 O M P_act2 Cosphi alarm at cosphi lt XX Bus address Auto summer winter time changeover Options Number of profiles used Highest EMD address Type of profile switching Time pulse edge Mi Self adjusting target maximum demand _ Active non active _ Resetting via external signal resetting via internal date _ Active pulse monitoring alarm Ll Allow grouping Units Load settings Profile 1 4 Depends on the number of profiles used Enter station and channel no EML 1 4 EMD1 EMD10 1 8 Name Priority Channel status Output L Group Minimum OFF time Maximum OFF time Minimum ON time Preference Power Printer routines Printing basic settings Printing load settings Power failures Errors Error list Resetting error counters Present day s power curve Operation section 7 1 7 2 section 7 3 section 7 4 section 7 5 section 7 6 section 7 7 section 7 8 section 7 9 section 7 9 1 section 7 9 2 7 9 6 section 7 9 3 section 7 9 4 section 7 9 5 section 7 9 7 section 7 9 8 section 7 9 9 section 7 9 10 section 7 9 10 1 section 7 9 10 2 section 7 9 10 3 section 7 9 10 3 1 section 7 9 10 3 2 section 7 9 10 3 3 section 7 9 10 3 4 section 7 9 10 4 section 7 9 10 5 section 7 9 10 6 section 8 section 8 section 8 section 8 1 section 8 2 section
15. advisable to sink the target maximum demand step by step until you have an optimal compromise between load availability and cost saving Do not forget to take seasonal variations into consideration e g additional costs for heating cooling etc 7 2 m Current target maximum demand P1 P2 P3 and P4 If under basic settings other settings options the self adjusting target maximum demand is activated the current target maximum demand will be displayed instead of the menu item target maximum demand This is the momentary target maximum demand for the appropriate profile If the target maximum demand is exceeded it is automatically set to the new value as long as this is not higher than the set upper limit If a value greater than the upper limit is set the upper limit is automatically set as the current target maximum demand In this case there is no further target maximum demand correction as the upper limit has been reached 7 3 Wilnitial value target maximum demand P1 P2 P3 and P4 If under basic settings other settings options the self adjusting target maximum demand is activated the initial value of the self adjusting target maximum demand must be entered here This is set at the beginning of an electricity company calculation period The number of initial values depends on the number of profiles used If a value is greater than the upper limit see section 7 4 is set the upper limit is automatically set as the initial value of the targ
16. and the range is from O to 7590 Smaller values mean more sensitive control 7 8 Emergency mode activated at XX of total sheddable load power If loads switched on reached a specified size then the EML 1101 can no longer maintain the condition stated and activates the emergency mode In the emergency mode channels with priorities 1 3 are normally included see section 8 2 As a last conseguence the emergency channel will be activated The emergency mode is activated when P_corr is higher than the percentage X of the nominal power of all loads included in the regulation Factory default setting is 45 the possible settings range from 10 to 80 Smaller values lead to more sensitive control Emergency mode is activated more readily 7 9 Other settings You can change to the next menu level with this menu item Change with the CR button 7 9 1 Measuring period The measuring period used by electricity company is set here Possible settings are 10 15 30 and 60 minutes 15 Basic Settings PRELIMINARY User Manual EML1101 7 9 2 Counter constant P act1 MP_act2 Here the number of pulses emitted per KWh by the energy meter is entered The parameter P_ act2 of the 2nd active pulse input can be set for EML 1101 M and L 7 9 3 Current transf ratio Ip Is P act1 O mj P_act2 Enter the ratio of the current transformer CT in use here This is printed on the CT If there is no CT 1 is entered 7 9 4 Voltage transf ratio Vp V
17. connected to power voltage Figure 1 Connection diagram If a load is switched off the relay opens If the EML is switched off or in the case of a power failure the relays are closed Annex FRAKO Power Bus Channel A ee ower Bus Channel B NIS FRAKO FN Power Bus 7 loo GND looz OW 10 ejqeondde you Extension Bu ra Channel A E O Extension Bus kcal Channel B Extension Bus GND IK 7W3 ut pep Load input Load output NC 7IW3 U y joueu Load output NO Ajddns samog uejBeig uojoouuo2 enuew uomnejedo pes oseojd Bulijosuuos e10jog Load Hardware Alarm Contact Vt I A0SZ s32e3u02 Uu 47 Annex PRELIMINARY User Manual EML 1101 19 7 Dimensions 133 260 296 All Dimensions are in millimeter Units Figure 2 Enclosure MENU Up cursor button Down cursor button CR button MENU button Figure 3 Buttons 48 User Manual EML1101 Annex 20 Appendix 20 1 Glossary of Terms Maximum demand The maximum amount of power drawn measured in kW during a measuring period Measuring period The time period which EML 1101 limits maximum demand to target maximum demand for different profiles Normally electricity companies provide time pulses that indicate the start and end of a measuring period An internal reset for measuring period will occur if the EML 1101 does not receive a time pulse that indic
18. is lower than the set target maximum demand deactivated channels with appropriate power demand can be switched on again Time pulserate 1 per measuring period KWh pulse rate dependent on counter constants current and voltage transformer ratios Example 15 Imp KWh bd al W max P max T W max PE Be Prognosis at t t4 No need of action d m Prognosis at t t Need of action Loads are switched off until the A uer trend falls below W max Installation PRELIMINARY User Manual EML 1101 2 1 FRAKO System options S M and L The EML 1101 is available in the following system options Bus prepared max 2 EMD 4 2e8 20 channels Output inversion EML 1101 M Additionally FRAKO Starkstrombus6 available 2 EMD Max 4 3 Active pulse inputs with summation Target maximum demand adjustment EML 1101 L Additionally 6 EMD Max 10 Grouping Upgrades to higher system options are carried out with a PC is not necessarily require the assistance of a service technician For ease of understanding the FRAKO system options are differentiated in the text as follows Function as of FRAKO system option M Function as of FRAKO system option L 3 Installation 3 1 Mounting The EML 1101 is vertically screw mounted 3 2 Electrical Connections All cable connections are connected with plug in terminal blocks Connections are as shown in Figure 1 Connection diagram page 47 Stoppers shoul
19. the OPT SW are not shut off The peak alarm is not shut off until P_act has dropped lower than 959e of the peak power Loads are turned back on according to the following rules Loads remain off at least as long as their set minimum OFF time Loads where the minimum OFF time expires first are turned back on first If a number of loads minimum OFF times have expired the loads with the highest priority are turned on first The individual switching follows according to the set control delay time Before the loads are switched on a check takes place to ensure that this will not cause a new peak power excess This function prevents overloading of transformers and generators blowing of main fuse or tripping of main circuit breaker All of these may become very costly for e g a manufacturing plant 7 6 Control delay The control delay serves to force pauses between the ON OFF switching of loads This avoids over reaction of the controller in form of unnecessary switching of loads If a large number of switching channels are used the control delay time should be set low 1 10 seconds in order to avoid long periods of inactivity Control delay is not taken into consideration in emergency mode and in the last 2 minutes of a measuring period as an especially fast reaction time here is absolutely necessary Factory default setting is 10 seconds it can be set from 1 to 60 seconds 7 7 Control Application Point Factory default setting is 3596
20. the inputs are functioning correctly Active pulse input The status display for Active pulse blinks Time pulse input The remaining time is reset and the next measuring period starts when a time pulse is received No time pulse should not appear in the third line at the end of a measuring period e Carry out the settings procedure This means programming of basic settings and load settings using buttons on the front fascia or over a PC using OPT SW software supplied The second option makes the configuration easier to understand For this reason it is recommended to use the PC software when installing for the first time Refer to online help in OPT SW if you require further information Installation Start the program OPT SW under Windows e g Win 95 with the Start button and the menu item run then enter gt A setup exe lt AASETUP in the dialog box 1 1 Programming via Front Fascia 1 Fascia keys Use arrow keys to choose menu items Numbers CR key confirms menu item choice Changes to next digit Menu key changes one menu level back Accept choices 2 Choose the menu item Basic settings 3 The sub menu item Target maximum demand P1 is displayed Select this by pressing CR button To prevent unauthorised use or accidental changes to Eas Ed Zen s the instrument a prompt is given for ID number This is shown only if no data has been entered for more IDDEEEE than 1 hour The last f
21. the switching times are kept Time preference to in emergency mode Power preference Time Date Current date TT MM YY II 41 o Annex PRELIMINARY 19 3 Form for Basic Settings Customer User Manual EML 1101 Date Plant Station ID Target maximum demand P1 Self adjusting target maximum demand inactive M Current target maximum demand P1 M initial value target maximum demand P1 IM upper limit target maximum demand P1 Peak power P1 Target maximum demand P2 self adjusting target maximum demand inactive M Current target maximum demand P2 Initial value target maximum demand P2 Upper limit target maximum demand P2 Peak power P2 Target maximum demand P3 Self adjusting target maximum demand inactive M Current target maximum demand P3 IM Initial value target maximum demand P3 Upper limit target maximum demand P3 Peak power P3 Target maximum demand P4 self adjusting target maximum demand inactive M Current target maximum demand P4 M Initial value target maximum demand P4 IM Upper limit target maximum demand P4 Peak power P4 42 Remarks Target maximum demand for profile 1 Current Target maximum demand for Profile 1 Initial value Target maximum demand for Profile1 Upper limit self adjusting target maximum demand for Profile 1 Peak power for profile 1 Target maximum demand for profile 2 Current target maximum
22. 1 5 kW 00 45 P3 00 50 P4 00 53 P3 00 57 P1 01 00 1120 6kW Pl 01 09 Target power 1300 0kW gt 100 01 15 4 1250 0kW Pl 9 6 Printing previous day s power curve The power curve of the previous day between 0 and 24 hours is printed out under this menu item Tuesday 26 07 99 0 50 100 gt Pset 00 00 Target power 2600 0kW gt 100 00 00 d i 1160 2kW Pl 00 151j i 1010 0kW 00 25 P2 00 301 d 1080 6kW P2 00 45 y 1250 5kW 00 45 P3 00 50 P4 00 53 P3 00 57 P1 01 00 940 6kW Pl 01 09 Target power 1300 0kW gt 100 01 15 4 1250 0kW Pl 24 User Manual EML 1101 Printer routines 9 7 Power maxima of the last 50 days Maximum demand values for the previous 50 days is printed out In this printout are no indications of highest values The times of the day s maximum values are only given by the printer when OPT SW configuration software is used 100 gt Pset 470kW at 09 45 for P1 600kW i 502kW at 10 00 for P1 600kW 170kW at 11 30 for P2 300kW 142kW at 10 00 for P2 300kW i 602kW at 11 30 for P1 600kW 578kW at 11 00 for P1 600kW 582kW at 13 15 for P1 600kW Do 03 04 581kW at 11 15 for P1 600kW Printout from Friday 04 04 99 9 8 Power maxima of the last 48 months The month s
23. 18 5 technical terms glossary T Displaying a channel that has been deactivated by the system timer EMT 1101 See section 18 5 technical terms glossary 26 User Manual EML1101 External synchronisation Exception When the parameter highest EMD address of the EML 1101 is set to O the following message is then displayed when you change to Add on stations Display stations No display possible due to highest EMD address set to 0 Factory setting for the parameter highest END bt IT address is 0 10 3 Virtual add on units Add on units can be defined as virtual channels when the EML 1101 operates in connection with a PLC or BMS Virtual add on units are used for switching channels that are not physically present at the FRAKO devices The information is accessible to a PLC or BMS with the help of the Communication Processor EMP1100 18 5 Technical terms glossary The switching is then carried out by the PLC or BMS as suggested by the EML 1101 Caution The configuration of virtual add on stations can only be carried out using the OPT SW software supplied 10 4 Activating virtual EMD Activation can only be done using the OPT SW software The item Configure Add on Stations can be selected in the menu EML configuration It is possible to give the individual EMD its own name and to activate it according to your reguirements Only that number of add on units are shown under this menu item as for under Basic
24. 8 5 section 8 11 section 8 9 section 8 6 section 8 7 section 8 8 section 8 4 section 8 3 section 9 section 9 1 section 9 2 section 9 3 section 9 4 section 9 4 1 section 9 4 2 section 9 5 13 Basic Settings PRELIMINARY User Manual EML1101 e Previous day s power curve section 9 6 e Power maxima of the last 50 days section 9 7 e Power maxima of the last 48 months section 9 8 e Eventlist section 9 9 e Delete printer jobs section 9 10 Add on stations section 10 e Activate deactivate stations section 10 1 e Display stations section 10 2 External synchronisation section 11 Clock section 12 Counters section 13 Write protect section 14 Instrument info section 15 7 Basic Settings Basic settings Select Basic settings menu item by using cursor buttons and program this by using CR button to enter the setting mode or the next menu level uut LEE 7 1 Target maximum demand P1 P2 P3 and P4 Target maximum demands for profiles 1 to 4 is entered here There is an individual menu item for each profile e g Target maximum demand P3 Depending on the profile activated one of the four target maximum demand settings is valid The target maximum demand is the more cost savings is going to be However there is danger of loads connected may be switched off too often or for too long due to emergency mode being activated Therefore an optimal compromise should be found It is
25. 964R RK512 34 User Manual EML1101 Annex Term Meaning Correction power P_corr P corr P max P trend T4 Control detects the necessary switching on the basis of the correction power Negative value means switching off Emergency load shedder channel This channel is switched off last Emergency mode When P corr gt set 96 of total sheddable load the emergency mode is activated The priorities 1 3 are included in control and channels with power preference can be switched off longer than their max OFF times and switched on for less then their ON times Load groups A group of channels that are switched strictly according to the priorities of the channels within the group Measuring period The length of the measuring period is dictated per time pulse provided by the electricity company It s duration typically is 15 min Normally close NC Channel off Contact opens Normally open NO Channel OFF Contact closed Peak power Peak power is the maximum active power allowed When exceeded loads are shedded very quickly by EML This function however is suplementary Priority Switching order when all temporal conditions e g min ON time are met Profile 4 profiles are possible that can be changed per input or EMT 1101 via FRAKO Starkstrombus Remaining time Time to the end of the measuring period Self adjusting target maximum Automatic adjustment of the target maximu
26. ATEO Switch off echo Caution All commands will no longer be shown if the terminal program local echo is switched off AT amp WO Saving the configuration as configuration profile O The following settings must be set on the PC modem in this order Command meaning o AT amp F Reset modem to manufacturers configuration AT amp DO Modem ignores DTR Signal ATX3 Turn off dialing tone recognition AT amp WO Save the configuration as configuration profile O The maximum baud rate of the modem must be at least 14400 baud Only use a modem cable to connect the modem to the PC or the EMIS 1500 The modem configuration can be carried out over any common terminal program In OPT SW the following settings must be carried out when connected Protokoll options Instrument connection N A 9 M Interface COM 1 M Modem NO M Fossil driver z inactive Hayes commands The instrument to which the modem is connected must be selected under the item instrument connection The prompt above configures access from OPT SW software via a modem connected to EML EMP or EMIS 1500 18 5 Technical terms Glossary Term Meaning Accumulated power P_acc Amount of energy measured since the beginning of current measuring period divided by the duration of measuring period Communication processor EMP Interface module which enables data exchange with a PLC or 1100 BMS according to the Protocol 3
27. EML1101 Load settings Choose reset via date when the electricity company carries out the counter reading e g at an exact time given every month on the 27 day at 4am The reset day and time are set with the front fascia buttons 7 9 10 4 Active Pulse Monitoring Alarm The maximum time that may elapse between two active pulses before an alarm is triggered can be entered here If a number of inputs are used as of FRAKO system option M a time must be entered that is distinctly higher than the maximum time between two pulses The input with the lowest pulse rate dictates this value If one of the 3 inputs exceeds this time an alarm is activated and it is entered in the event list The factory default setting is O This setting disables this monitoring function 7 9 10 5 L Group Grouping means that groups can be formed with related loads An example for grouping in a sheet metal work In this case it should be switched as follows Turn off Turn on 1 Stop material supply 1 Turn on cooler 2 Turn off heat 2 Start roller 3 Stop roller 3 Turn on heat 4 Stop cooler 4 Start material supply 14 40 10 14 40 20 14 40 30 14 40 40 14 40 50 14 41 00 14 41 10 14 41 20 14 41 30 Load 1 priority 10 Load 2 priority 8 Load 3 priority 6 Load 4 priority 4 If the minimal off time is not fulfilled in the above example the load will not be switched on Loads that do not belong to a group can be switched between the individual swi
28. Safety Instructions Important Read Before Commissioning The user must ensure that all operators are familiar with this operating manual and follow it at all times The operating manual must be read carefully before the instrument is mounted installed and commissioned All actions taken must follow the operating manual Installation and commissioning may only be carried out by appropriately gualified personnel with due regard for all rules and regulations that are in force When the instrument is connected to mains voltage it must not be opened If the instrument is visibly damaged it must not be installed wired up or commissioned If the instrument does not work after commissioning it must be disconnected from the mains Any further laws standards guidelines etc relevant to this product must be complied with Additional information on EML 1101 Maximum Demand Controller Loads which may cause damage or danger when disconnected by EML1101 must not be connected to the load channels The responsibility for correct load settings such that proper operation is guaranteed and no damage or danger arises remains 100 with the customer Contents PRELIMINARY User Manual EML 1101 Contents Section Page 1 Quick Start 5 1 1 Programming via Front Fascha non n cnn nan nc rc CLLH LEE L LLARY nennen nennen 5 2 Description 7 2 1 FRAKO System options S M and 8 3 Installation 8 3 1 hs ert auTou 8 3 2 Electrical Conne
29. You must not confirm anything inside a particular period 19 1 2 Update preparation Save all settings of the EML 1101 with the old version of the OPT SW by choosing Read from EML under the menu item EML configuration Now choose Save as under EML configuration and name the file e g with the current date 090799 EML Please note that saved data from instruments with a software version lower than 1 20 cannot be opened in the new version In this case you should make a printout of the basic settings and load settings in order to enter them manually later Use the old configuration software EML SW for this Deinstall the old OPT SW or EML SW from your PC Install the newest OPT SW version before the update This is on the update disk set For this start the file manager Windows explorer insert disk 1 in the drive change to drive A and click on Setup exe After this follow the prompts of the installation program You must start the update manually For this choose EML software update in the menu item Settings Important Carry out the update only with the software delivered Do not switch the instrument off during the transfer Do not interrupt the connection to the PC during the procedure All of the items described above can cause a loss of programming in unfavourable conditions so that the instrument can only be put in order by FRAKO service personnel For this reason please take great care and follow the instructions exactly T
30. asuring period is divided by 74 of an hour and thus becomes the mean power drawn during that particular measuring period There are various methods of charging maximum demand but they all use a monthly basis of calculation In a 30 day month there are 96 x 30 2880 maximums the highest of these mean power values is charged by the utility At the end of each month maximum demand in kW is charged at a certain rate of x kW Example Monthly maximum demand 110 KW Rate 8 00 per kW per month Maximum demand charge 880 00 A very freguent example for charging maximum demand on a yearly basis The 3 highest values over a 12 month period are determined These 3 values are then averaged and the result is charged with for example 102 00 kW year The relay outputs of the EML 1101 can be used to switch loads off The EML 1101 has 4 switching channels and an emergency channel for shedding loads Extension stations with 8 switching channels each can be connected over a 2 wire bus connection There are further outputs on the EML 1101 which will however not be dealt with in this introductory chapter The EML 1101 is supplied with all relevant data for automatic maximum demand control over the inputs A trend is calculated with the current power used and the remaining time in the measuring period If this trend is higher than the set target maximum demand channels are switched off in as much as their min max times are maintained If a trend
31. ates the end of a measuring period Also time pulse edge determines which edge of the time pulse is used to indicate the start of a new measuring period Remaining time Time required to reach the end of current measuring period Target maximum demand an arbitrary limit used by EML 1101 control system so that average powers do not exceed this limit Accumulated power Amount of energy measured since the beginning of current measuring period divided by the duration of measuring period It is abbreviated by P acc Trend power The extrapolated accumulated power based on energy consumption trends when end of current measuring period is reached It is abbreviated by P trend Profiles This feature enables different settings to be used by EML 1101 to cater for the following conditions e Tariff switching triggered by electricity companies e Different production requirements e Time dependent loads Control application point Sets P_acc level for EML 1101 to start limiting P_trend to target maximum demand Monitoring and control is immediately active at the start of a measuring period see figure below P trend is allowed up to twice the target maximum demand value initially Then it is reduced linearly with P_acc until control application point P_trend is limited to target maximum demand after control application point P_trend P_max target maximum demand 2P isis SE P_con control application point P max4
32. available to the control system and is continually switched on Controlled If the channel is defined as controlled then it is available for the control system 8 6 Minimum OFF time This is the length of time the load must be isolated from the power supply after being switched off For example with refrigeration devices it is necessary to keep the compressor isolated from the mains for suction purposes This parameter has been included for load protection purposes 8 7 Maximum OFF time This is the maximum time for which a particular load may remain in off condition If this time has elapsed then the load has to be switched back on by the maximum demand controller This usually means other loads must be switched off In the case of power preference this time can be exceeded in emergency mode See 8 4 Preference 21 Printer routines PRELIMINARY User Manual EML 1101 8 8 Minimum ON time This is the minimum time a particular load must remain on before the maximum demand controller can switch it off again In the case of power preference this time can be exceeded in emergency mode See 8 4 Preference 8 9 1 Group As of the FRAKO system option L it is possible to group channels This means that the individual channels of a group are switched strictly according to their priority see section 7 9 10 5 L Group The setting Group only appears when power preference is set 8 10 Changing load settings of group channels Impo
33. ctions ooooococococcccnncccnconononnccnnnnnnnnnnonnnnnnnnn LL ARR nn rn enne nr eren n LL HEFY FL nnn 8 3 2 1 Power Supply Voltage oooooioccccnonoccconnnococnnonanncncnnnnro cnn nano nara rra nn 8 3 2 2 Connecting INDUtS 0 eect eect eee cnn no nc nc nano nc nc canon rra 9 3 2 3 Connecting Load Channels onnccccinncccccnnnoccccnononcncnononccc nan ncncnn nan n cnc canon nr rra nn emere nnne 9 3 2 4 Alarm Contact for Hardware Eor nnn 9 3 2 5 NES mn 9 3 3 Installing the OPT SW software 10 3 3 1 Hardware requirements sssssssssssssssesseeseneen eene RHI LL FYR nennen 10 3 3 2 Software redulrementse nennen eren nennen nnne nnn nnne 10 3 3 3 IS 10 4 Commissioning 11 5 Response in exceptional conditions 11 5 1 Self onere TEE 11 5 2 aine m H 11 5 3 io HS 11 6 Operation 12 6 1 aee m 12 6 2 Programming Mode Dm 12 6 2 1 Selecting program E 12 6 2 2 Activating programming mode 12 6 2 3 Selling parameters teo ier dd 12 6 2 4 ACCEDING SENOS iii ute eee ees 12 6 3 Menu StU IT 13 7 Basic Settings 14 7 1 Target maximum demand P1 P2 P3 and P4 ooooccincocococcccncconanonononnnnnnnnannn non LLY YL LL LLun neon 14 7 2 Mi Current target maximum demand P1 P2 P3 and bi 14 7 3 MI Initial value target maximum demand P1 P2 P3 and P4 14 7 4 M Upper limit target maximum demand P1 P2 P3 and PA 14 7 5 Peak power P1 P2 P3 and PA sess III I N 15 7 6 Control del coi
34. d be left in PG cable glands which are not in use 3 2 1 Power Supply Voltage Power supply voltage should be 230 VAC 50 60 Hz The device is protected by an internal fine wire fuse 250 mA slow blow Important The connections for power supply must be externally protected by a 2 A semi time lag fuse When working on EML 1101 the unit must be switched off If the alarm contact is also used to signify power failures then the alarm circuit must be protected separately otherwise any failure of the 2 A fuse cannot be monitored User Manual EML1101 Installation 3 2 2 Connecting Inputs The inputs for active pulse time pulse and profile switching complies to SO definition The power supply required is provided by the inputs Both potential free contacts and electronic contacts can be connected There are two inputs for profile switching thus allowing 4 profiles to be selected Status of profile input 1 Status of profile input 2 Selected profile As can be seen from the table above one of the 2 counters is chosen simultaneously with profile input 1 Profile input 2 does not influence the counter Caution No external voltages are to be applied to contacts 7 to 14 as this can destroy the input circuit Important When working on EML 1101 ensure that the unit is disconnected from mains Although the EML 1101 is disconnected from mains the circuits leading to switch contacts may still be connected to power voltage 3 2
35. demand for profile 2 Initial value target maximum demand for profile 2 Upper limit self adjusting target maximum demand for profile 2 Peak power for profile 2 Target maximum demand for profile 3 Current Target maximum demand for profile 3 Initial value target maximum demand for Profile 3 Upper limit self adjusting target maximum demand for Profile 3 Peak power for Profile 3 Target maximum demand for Profile 4 Current target maximum demand for Profile 4 Initial value target maximum demand for Profile 4 Upper limit self adjusting target maximum demand for Profile 4 Peak power for Profile 4 User Manual EML1101 Annex Counter and transformer data Counter constant P_act1 Voltage transformer P_act1 Current transformer P_act1 L Imp kWh Printed on counter C Imp Wh Ratio Up Us Printed on U transformer Ratio Ip ls Printed on l transformer Average over P_act1 Number of Standard settings 1 Pulses Ratio Up Us Printed on U transformer Ratio Ip ls Printed on l transformer LI Imp kWh Printed on counter L Imp Wh Number of Standard setting 1 pulses Voltage transformer O Ratio Up Us Printed on U transformer Voltage transformer P_act2 Current transformer P_act2 Counter constant P_act2 P_act2 Current transformer O Ratio Ip Is Printed on l transformer Counter label O L Imp kVarh Printed on counter Average over O Number of Standard setting 1 pulses Calculating Co
36. e pulse1 blinks at the same frequency as the active pulse Time pulse input the display of time remaining jumps to the pre set measuring period as soon as the time pulse is given If then Time pulse missing is not shown the function of time pulse input is correct Profile switching The profile identified on the contacts 11 and 12 is shown in the second line e g P1 for profile 1 5 Response in exceptional conditions 5 1 Self Monitoring The EML 1101 has an integrated self monitoring system It identifies power failures and system errors These events are then entered in a power failure table that can be printed out A power failure is then only registered if power supply is disconnected for more than 2 seconds 5 2 Restarting The EML 1101 automatically begins to operate after power supply is restored 5 3 Memory Data programmed is retained for approximately 10 years in the event of a power failure Note The programmed values should be rechecked if the unit is isolated from power supply for a long period 11 Operation PRELIMINARY User Manual EMIL 1101 6 Operation 6 1 Keyboard Cursor buttons Navigating in menu structure Changing values and settings Setting numbers Carriage Return button Selecting a menu Moves cursor to next position Activating stations Printing MENU button MENU Ascend to the next higher menu level Proceed to display mode after reset
37. ediate switching Immediately after a profile switch the new settings for the new profile take effect Immediate switching P_acc O Immediately after a profile switch the new settings for the new profile take effect The accumulated value is reset to 0 Switching at the begin of measuring period Regulation runs with the last set values The new values take effect at the beginning of the new measuring period The factory default setting is Immediate switching 7 9 10 3 1 Time Pulse Edge This setting tells the EML 1101 which time pulse edge is used for it to respond This setting is used to optimise target maximum demand and relays for inverting time pulses are not required The type of edge used by electricity company counter resulting in an end of a measuring period and the start of the next can be either positive or negative The four possibilities are shown in diagram below HI Contact open LO Contact closed HI LO 11 OJO Opener 1 4 positive edge 2 3 negative edge Shutter 7 9 10 3 2 M Self adjusting target maximum demand If the EML 1101 cannot keep to the set target maximum demand e g because the basic load is too high an excess occurs In this case it is sensible to adjust the target maximum demand to the level of the excess as the electricity company will use the registered value for the current billing period In the case of electricity contracts where only the ma
38. et maximum demand In this case there is no further target maximum demand correction as the upper limit has been reached 7 4 Upper limit target maximum demand P1 P2 P3 and P4 If under basic settings other settings options the self adjusting target maximum demand is activated the upper limit of the target maximum demand can be entered here Every time there is a power excess it is checked if this limit has been exceeded If this is the case there is no further target maximum demand correction above this limit Upper limit reached is then entered in the event list 14 User Manual EML1101 Basic Settings If the upper limit is set too low and the initial value and the current target maximum demand are set higher these values will be set automatically to the set upper limit 7 5 Peak power P1 P2 P3 and P4 The absolute limits for actual power P act is set here for every profile This function is an extra function provided by EML1101 not to be confused with the control of maximum demand Depending on the profile activated one of four peak powers is valid As soon as P_act exceeds this peak power limit an alarm is activated and loads are shut off one after the other until P act falls below this limit Loads are shut off according to the following rules Loads with low priority are shut off first The minimal on times and maximum off times are not taken into consideration Loads with priority O and loads that are set to ON in
39. he master EMIS 1500 and EML grounded The screening should be grounded at one point only No modem connection possible a EML Modem has not been configured with a terminal program with baud rate set to 9600 b Incorrect command order during the configuration Individual bus faults a Are the FRAKO Starkstrombus and the Add on bus connected Contacts 1 3 and 4 6 Solution Disconnect buses There should be no connection between the two EMD X not active a EMD set to wrong bus address b Channel A B confused c No power on EMD Display is difficult to read There is an adjustment screw for the display contrast in the contact compartment Turn this until the display can be read reactance To printer E Adjustment screw Contact 1 3 Channels are not switched by control a Always OFF Always ON instead of controlled b They are switched time controlled by the EMT1101 All channels are OFF a Peak power set too low Solution Enter a value that is so high that the present peak does not lead to deactivation see 18 5 Technical terms Glossary b Peak power and target maximum demand confused during setting See 18 5 Technical terms Glossary Time gaps in the days power curve Was the clock changed in the time period in guestion Check Printout of the event list see section 9 9 It is not possible to
40. list see chapter 9 9 Event list on page 25 At the beginning of the adjustment it can occur that the instrument operates in emergency mode for a longer period because the initial value is set too low The initial value must then be set higher If you wish to retain the low initial value and some channels should retain their switching times choose Time preference in the load settings 8 4 Preference on page 21 Programming 1 Enter upper limit for the individual profiles 2 Enter initial value target maximum demand for the individual profiles Choose a lower value than the one that has been set until now Initial value target maximum demand must be set lower than the upper limit Initial value target maximum demand is first adopted as the current target maximum demand when a reset via contact or date has taken place The current target maximum demand should be set to initial value target maximum demand during the first configuration 7 9 10 3 3 Active inactive You can choose to activate deactivate the self adjusting target maximum demand with the cursor buttons 7 9 10 3 4 Resetting via external signal resetting via internal date Choose reset via contact if your electricity company gives you a potential free contact for synchronisation of the billing period Set the type of the reset edge with the front fascia buttons Positive contact opens negative contact closes both closing and opening EIE e JA Edge Edge 18 User Manual
41. m demand after an demand current target demand has been exceeded see section 7 9 10 5 Status display Symbols in the 4th Line of the EML display The same symbols are used under the menu item Show add on stations for the condition of the individual channels of the add on stations System Timer The System Timer carry out time switching of individual EMT1101 channels of the EML 1101 or the EMD1101 In this way channels can be cut out of control for an certain time period and during which time switching can be applied Target maximum demand Maximum allowed average power at the end of a measuring period Trend power P trend Forecast average power for the current measuring period 35 Annex PRELIMINARY User Manual EML 1101 19 Annex 19 1 Instrument software 19 1 1 EML software update The program update can be carried out over the serial interface of the EML 1101 To update the EML 1101 to a new software version you must first order an update You will be sent two 3 5 disks Install the software OPT SW on your PC see section 3 3 3Installation page 10 You can carry out the update over the serial interface with the help of the OPT SW configuration software Carry out an instrument upgrade to the FRAKO system option M or L in the same order First read this section carefully If a prompt in the PC software or the instrument is not understandable first consult the handbook before you confirm anything
42. maximum values for the past 48 months is printed out here 100 gt Pset 13 May 470kW at 09 45 for P1 600kW 28 Jun 502kW at 10 00 for P1 600kW 31 Jul H 170kW at 11 30 for P2 300kW 07 Aug i 142kW at 10 00 for P2 300kW 02 Sep gt 602kW at 11 30 for P1 600kW 30 Oct i 578kW at 11 00 for P1 600kW 18 Nov H 582kW at 13 15 for P1 600kW 02 Jun 98 581kW at 11 15 for P1 600kW Printout for Friday 04 12 99 9 9 Eventlist All events are stored here with date and time Example ASS AS SSS EVENT LIST SaaS Sala Sai 17 03 99 16 45 30 Time pulse detected 17 03 99 17 00 00 No time pulse 18 03 99 09 37 34 Target power excess ended 18 03 99 09 40 20 Target power exceeded Event fEventrelease Target power changed via keyboard No message o No message No message OO Error writing to EEPROM No message 25 Add on stations PRELIMINARY User Manual EML 1101 9 10 Deleting printer queue This option allows the cancellation of printing For example it may be used to delete unprinted data due to paper jam or other printer errors 10 Add on stations In this menu item EMD 1101 Add on Station can be switched on for the control system and displayed 10 1 Activating deactivating stations In this menu item the status of EMD 1101 Add on Station is shown The first EMD 1101 activated is shown in the first line of the display Others stations are deactivated
43. n on a bus ignore this setting After reset the bus address is set to 0 Be sure when setting the bus address that no other instrument connected to the bus has the same bus address 7 9 9 Auto summer winter time changeover Automatic daylight saving time changeover can be activated in this menu item The changeover occurs on the last Sunday in March at 2 am and the last Sunday in October at 2 am 7 9 10 Options This menu item allows access to the next menu level This is done by pressing CR button 7 9 10 1 Number of Profiles Used This setting enables the number of profiles to be used according to requirements The number of profiles used determines how many sets of basic and load settings are to be used A maximum of 4 profiles is possible 7 9 10 2 Highest EMD Address The highest possible EMD address enables the number of add on stations activated to be limited Consequently only data for the corresponding number of EMD 1101 can be displayed and changed 16 User Manual EML1101 Basic Settings System option Max number of add on stations Corresponds with EML EMD S 2 4 2 e 8 20 Channels M 4 4 4 e 8 36 Channels L 10 4 10 8 84 Channels The factory default setting is 0 7 9 10 3 Type of profile switching Please clarify with your electricity company how invoicing with tariff switching is carried out There are three settings which can be chosen Setting Description Imm
44. nd the time can be set here Date time setting 29 04 99 14 05 12 Monday DDDEEEN there are breaks in the data listed Important If the time or date is incorrectly set then Set the digits with the cursor buttons Change from places with the CR button Accept the settings with the MENU button If a value is set outside the limits e g 31 02 99 12 14 26 the new setting will be dropped The day is automatically calculated and set by the instrument after the set values have been adopted 13 Counters This menu item shows the counter status P1 for 0000000000 0 0000000000 0 profiles 1 3 and P2 for profiles 2 4 To reset the counter status the CR button must be pressed but DDDEEEN Caution the cumulative counter values up to this time point are permanently deleted when CR button is pressed If profile 1 or 3 is active then this is counted on counter P1 active profile 2 or 4 is counted on counter P2 A reactive work counter is not available 14 Write protect If this menu item is activated then a data entry with identification numbers only is possible Independent of this entry the EML 1101 Maximum Demand Controller automatically switches to write protect if no button is pressed within 1 hour The last 4 numbers of the serial number are used as the ID number to be entered 15 Info device All data relating to the EML 1101 can be accessed under this menu item No changes are possible here 28
45. nly to provide information using an EMP 1100 of a PLC control system The switching procedures are then carried out by the PLC according to settings of EML 1101 Stations Refers to either EML 1101 or EMD 1101 Add on Station Channels Individual load channels that can switch on or off loads On the hardware side there is one relay for each channel 20 2 Preference With software version 1 52 of EML 1101 and software version 2 21 of Opt SW it is possible to set the value preference in load settings This setting is only possible by means of the configuration software Opt SW 20 2 1 Power preference In case of power preference the maximum demand is more important than the time settings of the single loads If the emergency mode is active the loads will be switched off even if the minimum on time is not reached For the loads which are already switched off it is possible to extend the off time against the setting of maximum off time 20 2 2 Time preference If the time settings are more important than the maximum demand set this load to time preference In this case the time settings are sure in any working condition of EML1101 For example in the emergency mode this load would be switched on even if there is an exceeding power demand If the emergency mode occurs and the minimum on time is not reached the load would not be switched off 50
46. o avoid mistakes please read the prompts carefully and follow the instructions After choosing the menu item Settings EML software update the authorisation code is prompted This can be found on the product activation certificate 36 User Manual EML1101 Annex OPTSw Authenticate instrument update LL FL OPTSW Authorisation of an instrument update Authorisation code Run update After the authorisation code has been entered the following warning appears EML1101 software update Attention Please read the following instructions completely If the instructions are not followed correctly the instrument may require service Vos S mn MATTENTION Control does not function during the update process _ All recorded data will be lost Do you still wish to continue Yes No 37 Annex PRELIMINARY User Manual EML 1101 __ For a software upload disk 1 of 2 OPT SW disks must be inserted in drive A 2 FRAKO Power Bus terminals 1 3 must be disconnected from instrument Zei Do you wish to continue Important Disconnect the instrument from the FRAKO Starkstrombus by pulling the left connection contact 1 3 in the contact compartment If this is not disconnected the update will be interrupted after the transfer of the boot loader If this should have happened follow the following instructions de Disconnect the EML from the mains for ca 10 seconds 2 Turn the EML on again The display remains empty
47. o be switched back on after switching off Hereby each OFF load is controlled if the trend would remain under the target maximum demand after switching If this is the case the load can be switched ON see 7 5 Peak power P1 P2 P3 and P4 and 7 1 Target maximum demand P1 P2 P3 and P4 8 4 Preference With the setting preference you can choose whether the set target maximum demand or the channel switching times should be in the forefront for the regulation of this channel Preference Description Power preference Max OFF time Min ON time Min OFF time Are not observed in emergency mode Emergency mode activation see section 7 8 Time preference The settings max OFF time min OFF time min ON time are observed in emergency mode It is not possible to set a min ON time and a max OFF time for the priorities 1 3 with power preference This menu item is not available for group channels group set unequal 0 8 5 Channel Status Consumer EME 1 This setting can be used to bring the individual channel constantly OFF channels to a defined status Using this setting one E i i H of three of the following status modes can be allocated to status modes Channel Status Description Constantly OFF If a channel is assigned this status then the consumer is not available to the control system and is continually switched off Constantly ON With this setting the channel is also not
48. ock component Error writing to EEPROM The relay remains in this condition until the error has been corrected If there is an error contact 29 30 is closed 3 3 Installing the OPT SW software 3 3 1 Hardware reguirements e e oO 60 60 EU S 0 CO IBM compatible computer with CPU 80386 33MHz or higher 4 MB RAM 372 1 44 MB floppy disk drive Hard disk with at least 40 MB Serial communication ports COM1 and COM2 or COM 1 and PS2 VGA graphics card and mouse Modem optional 3 2 Software requirements Windows 98 NT 2000 XP Basic knowledge of Windows 3 3 Installation Select File Run in Program Manager indows 95 98 NT Press Start button on the bottom left of the screen Select Run Enter A SETUP to start installation 10 User Manual EML1101 Commissioning 4 Commissioning a Fill in all data in the basic settings form and the load settings form b Remove the PG covers from the necessary openings and connect the EML 1101 as in Figure 1 Connection diagram on page 47 EML1101 MAXIMUM DEMAND CONTROLLER c Switch on the power supply The EML 1101 Version 2 11 L then carries out a self test The following is dependant on program version and the FRAKO E E a H system option d The standard display is then shown P_act cosphi P_acc Time rem 0 0kW 1 0 0 0kW 15 00 P1 UL LLL Check that all inputs are functioning correctly Input pulse the status display Activ
49. ough a built in RS232 interface The printer must be configured as follows EPSON LX300 Character interval 10cpi Zero with without obligue line O not critical Ignore Page perforation Off not critical Symbol table PC437 Auto line forward Off not critical Page length 12 inch depending on paper Automatic separation Off not critical Tractor Individual Interface Auto selection 10 sec Baud rate 9600bps Parity None Word length 8 bit ETX ACK Off Assigning the printer cable Sub D 3 pin Sub D 25 pin f a printer is connected to EML 1101 then the previous day s power curve is printed out daily just after midnight see section 9 6 If during this time a PC is connected to the serial interface and the program OPT SW is active the data will be sent to Windows standard printer If EML 1101 cannot detect a printer or the printer is not online then the message Printer off line or no printer is displayed when menu item Printer routines is selected EML 1101 SE H a printer is connected the menu items described in sections 9 1 to 9 710 are shown here 9 1 Printing basic settings All set values for the menu item Basic settings are given over the printer 9 2 Printing load settings The load settings for each profile are printed out on the printer one after the other Due to the large amount of data there may be a long delay from the time CR button is pressed and
50. our characters of the serial number are to be entered as ID number These are given on the label on the top face of the terminal compartment Use the arrow keys to choose numbers Change to next number with the CR key When ID is entered e g 0631 press Menu key If the ID is correct an underscore appears in the display 1 Enter values for target maximum demand and peak power according to Form for Basic Settings 2 Peak power is the maximum permissible active power Enter a peak power value that is high enough to prevent short high active power from causing a shut off 3 To set measuring period select menu item Basic settings Other settings Measuring period Measuring periods of 10 15 30 or 60 minutes can be chosen using cursor buttons 4 List of settings in this sub menu Measuring period Maximum target demand P1 P2 P3 and P4 M current target maximum demand P1 P2 P3 and P4 Current transf ratio Ip Is P_act1 O M P_act2 Voltage transf ratio Vp Vs P act1 O M P_act2 Counter constant P_act1 M P_act2 Description PRELIMINARY _ Counter constant O User Manual EML1101 Average over P act1 O M P_act2 Cosphi alarm when cosphi lt XX Bus address Auto summer winter time changeover Note Settings made are immediately adopted by control system Please note that when a new Target maximum is selected this value comes in effect immediately Load settings listed belo
51. out the event protocol as well as the daily power curves and the maximum curves under Printer routines 17 4 Checking the system when running The EML 1101 Maximum Demand Controller can be checked during operation To do this the EML 1101 has power displays to enable the actual status to be determined and observed 17 4 1 Standard display P act cosphi P acc Time rem 0 0kW 1 0 0 0kW 15 00 P1 UN LEE Pact Current value of active power cosphi Current power factor value P acc Total accumulated power Time rem Time remaining in current measuring period P1 Current active profile 17 4 2 Display of switching channels The current status of the switching channels is shown in the bottom line of the display i Channel is switched on by the control system Channel is switched off by the control system X Station deaktiviert Channel is constantly switched on NC contact is closed Channel is constantly switched off NC contact is opened Channel is switched on by system timer EMT 1101 NC contact is closed T Channel is switched off by system timer EMT 1101 NC contact is opened Note In the emergency mode loads with constantly ON OFF status and switches ON OFF by EMT1101 are not included in the control system 30 User Manual EML 1101 Troubleshooting 17 5 Sources of error Error Possible causes No bus access possible a Correct bus setting b Channel A B interchanged c Screening on t
52. previous display and repeat the steps again Parameters to be set Power Entry as four figure number in kW Define channel status Minimum ON time Up to 999 59 minutes seconds Maximum OFF time Up to 999 59 minutes seconds Minimum OFF time Up to 999 59 minutes seconds Output Opener closer Define channel status On off controlled Priority two figure number L Group 8 1 Load name This can only be changed using the configuration tool OPT SW supplied As factory settings load names are set as in the following example Channel 3 in EMD 2 Please note that when overwriting the entry with the OPT SW a unique name must be assigned for every consumer The name can have a maximum of 20 characters 8 2 Priority Priority Description 0 Always on in this profile 1 Most important channel 1 3 Channels that are only switched off in emergency mode It is not possible to set a min ON time and a max OFF time for priorities 1 3 under POWER preference as they are only switched in emergency mode The set time are also observed in emergency mode under TIME preference 4 98 These priorities are switched in normal mode and in emergency mode 98 Least important channel 20 User Manual EML1101 Load settings 99 Always OFF in this profile 8 3 Power This parameter is used by the EML 1101 to determine whether if a particular load is suitable t
53. rtant If group channels are defined the load e g conveyor belt and roller which are in the group channels must be disconnected from the mains It is not guaranteed that the group priority will be maintained in the setting phase In the case of changes of the priority or group the new setting will be adopted for all profiles All further settings are not relevant for the switching order and can show various values in the individual profiles Turn off load assigned to group If however changes are attempted per front fascia Kee pA anero buttons in group settings a message is displayed A A Turn off load assigned to group Ifthe load is disconnected from the mains and you gt Accept new parameter wish to accept the changed settings choose with the E d i cursor buttons and confirm with the CR button 8 11 Output Every channel can be configured as normally open or normally close with the output inversion 8 12 Function testing After the programmed values have been checked a function check should also be carried out The switching response for individual channels can be checked by reducing target maximum demand temporarily so that the controller is forced to switch off channels A check of each individual load can be carried out by changing ist channel status see 8 5 Channel Status 22 User Manual EML 1101 Printer routines 9 Printer routines Either a PC or a serial printer can be connected to EML 1101 thr
54. s P act1 O m P act2 With medium voltage measurement the transformer ratio of the voltage transformer VT must be entered Enter the ratio of the VT in use here This is printed on the VT If there is no voltage transformer used i e for low voltage measurements e g 400 V the value 1 is entered 7 9 5 Average over P act1 O m P act2 This setting serves to calculate an average of the registered number of pulses in nets with high transient power variations If this function is used transient power variations are smoothed and unnecessary load switchings can be avoided 7 9 6 Counter constant Q Enter the pulse values of the pulse counter here 7 9 7 Cosphi Alarm at cosphi XX This setting sets the threshold value for triggering power factor alarm If a value of O is set the power factor alarm function is disabled and the standard display shows the correction value P corr instead of the cosphi value If the limit is exceeded the error message cos q error is displayed and the alarm is activated The error is deleted when the lower limit is exceeded 7 9 8 Bus address This setting assigns an individual address for EML1101 so that the central unit EMIS 1500 the EMG 1500 PN the communication processor EMP 1100 or the system timer EMT1101 can identify the EML 1101 at the FRAKO Starkstrombus Both bus systems the FRAKO Starkstrombus and the add on bus apply to the field bus standard EN 50170 If the EML is not to be ru
55. set the min Off time max OFF times lt desired setting Solution First enlarge max OFF time A group does not appear in load settings Preference must be set to power Solution First set power preference Preference does not appear in load settings Group of this load must be entered as 0 Solution First set group 0 31 Troubleshooting PRELIMINARY User Manual EML1101 Error Possible causes 32 User Manual EML1101 Application instructions Error Possible causes Self adjusting target maximum a Self adjusting target maximum demand is not active under demand does not work Basic settings Other settings Options Changed initial value self adjusting a Upper limit self adjusting target maximum demand has maximum demand been changed on the front fascia buttons on the EML 1101 to a value lower than the initial value self adjusting target maximum demand Changed current target maximum a Target maximum demand was exceeded in a previous demand measuring period Upper limit target maximum demand has been changed on the front fascia buttons of the EML 1101 or via OPT SW to a value lower than the current target maximum demand o No access possible via serial interface Mo o n Correct COM port selected under menu item Connections Max length of 15m exceeded Wrong cable ubD 9pol Bu SubD 9pol Bu CH Bb 2 Oo o N o Ww ao FA O0 o N o
56. settings Other settings Option Highest EMD Mame EMD Address 1 EMD Aar 1 address see section 7 9 10 2 Activating stations In order to configure an EMD as a virtual device the llas i ce item EMD must be active and activated by mouse idau or ND click to be virtual In order to make the settings active El E in this window the Write button must then be pressed VEML EMD Adr 1 in order to inform EML 1101 When this is done then the status values can be read Yon Lowe Xe out via EMP 1100 and processed with a PLC OR BMS Important For virtual stations no error message is given with poor communication of PLC with EML 1101 11 External synchronisation If the CR button is pressed then a new measuring period starts Normally the start begins with the External synchronisation time pulse of the electricity company Press ENTER for period begin DO DEBE Caution A peak power value may occur after a forced time synchronisation If synchronisation is executed towards the end of measuring period and loads are in off condition then load channels are activated due to new start of measuring period As the measuring period of electricity company has not ended a peak value may occur If a temporary profile switching should take place immediately that is usually carried out with the electricity company pulse a forced synchronisation can occur 27 Setting time PRELIMINARY User Manual EML1101 12 Setting time The date a
57. tching of the group Up to 8 groups are possible The group numbers serve to differentiate the individual groups The switching order of the groups themselves is determined alone by the priority of the individual channels See section 8 9 L Group 7 9 10 6 Units This menu item enables a changeover from kW to MW The highest adjustable maximum demand is 6500kW or 6500MW 19 Load settings PRELIMINARY User Manual EML1101 8 Load settings Programming load settings can be done through the front fascia of EML 1101 or through OPT SW software see section 3 3 3 Installation Program the load characteristics for every load channel used Programming via the front fascia Select menu item Load settings with cursor buttons Load settings and press CR button A Load settings Profile 1 Select the profile for which the load settings are to be changed with cursor buttons and press CR button Ut LLL Load settings The EML 1101 prompts for an entry of the station Enter station and channel no EML 1 whereby station means EML 1101 or EMD 1101 Add on Station connected Using cursor buttons first H a E A select the station Then press CR button Then select the channel in the station After the CR button is pressed the channel name is shown and can only be changed with the OPT SW software From this menu item use cursor buttons to proceed to other load settings If an incorrect value is entered press MENU button to return to
58. the time printing begins 9 3 Power failures The last 10 power failures are printed 9 4 Errors After selecting this menu item you can choose to print or delete the errors in another menu 23 Printer routines PRELIMINARY User Manual EML 1101 9 4 1 Error list Press CR button when the display shows Print Error when a printout is required The print out lists the number of errors since last deleted The following errors are identified No time pulse Error at extension bus Error at FRAKO Starkstrombus Power failure _ Target maximum demand exceeded Peak power exceeded Cosphi exceeded 9 4 2 Resetting error counters To reset the error counter press the CR button On deletion all error counters are reset to 0 and the date and time is stored in an internal memory The date and time of the deleting is then printed out at the next print out under the error list 9 5 Printing present day s power curve The power curve of the current day until the current time point is printed out The maximum value of the power maximum is marked with a If this is higher than the set target maximum demand this is marked with a Every time the target maximum demand is exceeded it is marked with a gt P1 P2 P3 and P4 marks the active profile of the time Tuesday 25 07 99 0 50 100 gt Pset 00 00 Target power 2600 0kW gt 100 00 1260 2kW P1 1200 0kW 00 23 P2 1120 6kW P2 H 112
59. ting OPT SW via modem nennen enne nennen enne enne 34 Technical terms Glossary sessi andoian EEEE EAA ARETE NEENA AAS 34 Annex 36 Instrument software 36 EML software update 36 Update preparation ooooooconococccnncoccnnnnononnnnnnnncnnnnnnnnnncnnnnnnnnnn nn eren nnn nene ennt nennen nennen nns 36 Table of SCttiNgS eee tr nn ene ee eee ene nemine nnne nenne DER EE nennen nnn 40 Form for Basic Gettings eene nennen nnns 42 Form for load settings ooooonnncccnnnnnicinnnncccccnnnnnccnnn nono tuunattu nn nan nr 45 Quick Start PRELIMINARY User Manual EM 1101 19 5 Terminal assiGhMents A a a 46 19 6 Connection dagr aM i a aiu iy RP Y I aad 47 19 7 DIMENSIONS A LT ER LE 48 20 Appendix 49 20 1 Glossary GE Tee certet cte Ain fe dt ee t e e de etu ee eo ee ane pedo e utat 49 20 2 Preference ade e ea e eee tee ba iade depo c ARES FC E ERR T ERE RE ERR Ae RY esae ei aua 50 20 2 1 Power preference ui uu desta sae eo e aka ende READ ss e ARE ERSTER RR DIO 50 20 2 2 ddmeprefereniC amp acc Ems 50 User Manual EML1101 Quick Start 1 Quick Start The instrument is commissioned as follows a Copy and fill out Form for Basic Settings page 42 and Form for Load Settings page 45 before commissioning b Remove stoppers from the PG cable glands and connect the EML 1101 as shown in Figure 1 on page 47 Please observe the directions in chapter 3 page 8 c Switch on power supply The EML 1101 then performs a self test d Check if
60. ual EML1101 Annex Pos Designation Descripion Units Valuerange CTA ple O O a cal used basic and load settings 2 Highest add on Limits the add on stations to the set value 0 2 M 0 4 L 0 10 UH ul a eee el 3 2 Type of profile Determines how the profile switching 1 Immediate switching affects the control system switching 2 Immediate switching P_acc 0 3 Switching at beginning of next measuring period 4 Reset pulse edge_ Determines the edge of the reset pulse 1 positivemegative 5_ M seif adjusting Meran me self adjusting target LU target maximum demand Maa Geessen maximum demand is to be carried out Hour 0 24 Minute 0 59 MI Reset by Reset takes place over contact 8 positive negative contact Grouping function both S Wu on on o o Di 6 Active pulse Monitors if this time period between 2 monitoring active pulses is exceeded 7 L Grouping A deactivates the grouping function i Units Determines whether the power settings are in kW or MW Load related programming 1 Priority Importance of load Cyclic switching equal importance Determines the switching polarity NC NO contact 1 H m L Group Identifies to which group the load is 0 8 assigned 0 No groups assigned KW Maximum power drawn by load kW 0 6500 Minimum ON time 0 999 59 Max OFF Maximum OFF time 0 999 59 Min OFF Minimum OFF time 0 999 59 Preference Determines if
61. unter and Transformer Constants If the counter print out is given in Wh then the counter constant evaluated must be multiplied by 1000 Transformer secondary Note that both values are in the same units Other settings Measuring period min 10 15 30 or 60 min Average over P act pulses Counter compatibility standard setting 1 IMP act2 O Cosphi Alarm at Only when the pulse output of a reactive work Cosphi lt xXxX counter is connected Setting according to profile usually 0 9 ind Bus Address od Winter Sommer time L Yes Yes automatic changeover Changeover Ll No Options Number of profiles used _ Number of profiles actually necessary en Ta NSCHALNL Highest EMD address Type of profile switching C Switch over immediately L Switch over immediately Pacc 0 L Switch over at beginning of next measuring period Time pulse edge L positive TT negative 43 Annex PRELIMINARY User Manual EML 1101 Ll active inactive L over external signal L positive negative L both L over internal date M Self adjusting target maximum demand Active pulse monitoring Mn Br Ae NN Units Ll kw Determines units of power entries Ll MW 44 Annex User Manual EML1101 19 4 Form for load settings 99U9 19J914 jndino snjejs 2es uiuJ NO UIIN oos uiui 3JO XP IN oos uiu
62. w can be set individually for every load channel and for every profile Load settings Values Description Power 0 6500 0 Value in kW or MW 0 Load is always switched on 1 3 Load is only included in control system during Priority emergency mode 4 98 Load is included in control system 99 Load is always switched off Channel status Always ON Selected state for all profiles Always OFF Controlled Output status NC Inverting of the contact state ON OFF NO Minimum OFF time 0 999 59 Value in minutes seconds Maximum OFF time 0 999 59 Value in minutes seconds Minimum ON time 0 999 59 Value in minutes seconds User Manual EML1101 Description 2 Description Customers with a power consumption above typical values of about 30 kW are charged not only according to their consumption for energy but also according to the maximum power they draw In this context the term consumption refers to an average that is determined over a measuring period Usually the average is determined over a period of 10 15 30 or 60 minutes The beginning and the end of a measuring period are sent to the EML1101 by the energy supplier via pulse output on the counter If a measuring period of 15 minutes is defined the energy supplier subdivides every day into 24 x 4 96 measuring periods At the beginning of each measuring period an energy meter is set to zero The amount of consumed energy at the end of each me
63. ximum value reached is billed it is sensible to set the initial value under the lowest annual maximum In this way it is possible to take advantage of the seasonal variations The most important channels should be set to Time preference in order to retain their switching times in emergency mode 17 Basic Settings PRELIMINARY User Manual EML1101 If the current target maximum demand is exceeded the registered value is adopted as the new target maximum demand The settings for the self adjusting target maximum demand can be set under this menu item A 700kW NEE EE 600kW A A cow 400kW 300kW 200kW 100kW OKW 16 40 00 16 50 00 Term Description Initial value target Target maximum demand that is to be set as current target maximum demand maximum demand at the beginning of a new billing period Upper limit target Determines up to which limit self adjusting target maximum demand maximum demand can be carried out Current target maximum This is the value to which regulation will be carried out Changes of demand this value will be immediately included in regulation The self adjusting target maximum demand resets the target maximum demand after an excess to the level of the excess The upper level target maximum demand determines the highest level to which target maximum demand can be adjusted If this is exceeded there will be no adjustment All adjustment or excesses will be entered in the event

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