GM420 - Bender
Contents
1. 5 06 1 digit Operating error voltage in the range 50 60 7 2 9 1 digit Operating error voltage in the range 42 460 7 10 96 1 digit History memory for the first alarm value data record measured values 38 TGH1413en 09 2007 TechnicaldataGM420 off 0 999 off Fault memory M alarm on off on Switching elements Number of changeover contacts u 2 1 K1 K2 Operating principle nee N C operation operation Kl Err gt R OL gt U tES device error loop resistance measuring current disconnection N O operation n o MERE K2 Err gt OL gt U 1 5 overvoltage N O operation n o Electrical service life under rated operating conditions MUON IT NR EO E 10000 Contact data acc to IEC 60947 5 1 Utilization Category OS AC 13 AC 14 DC 12 DC 12 DC 12 Rated operational voltage anne aa 230 V 230 V 24 V 110 V 220 V Rated operational current Especie 5A3A1A02A0 1A Minimum contact load ee ee 1 mA at AC DC 2 10V Environment EMC2. 2x with mounting dip 0268 V1 0x lt 1504 Factory setting 6 1 Standards approvals and certifications s Cueto guinem 150 9001 6 2 Ordering information Measuring Measuring Device range range Supply type Loop extraneous voltage U resistance voltage 0 DC9 6 V 94 V GM420 D 1 0 100 Q AC 0 50 V AC 15 460 Hz 16 72 V 9308 2001 DC 70 300 V GM420 D 2 0 100 Q AC 0 50 V AC 15 460 Hz 70 300 V 9308 2002 Mounting clip for screw fixing 1 piece per device accessories b 9806 0008 40 TGH1413en 09 2007 INDEX A Adjustable parameters list 19 Automatic self test 12 C currently measured values Extraneous voltage 21 Loop resistance 21 D Delay on release toff 13 Deleting the fault alarms 18 Device features 9 Display elements in use 17 Display in menu mode 22 Display in standard mode 21 E ENTER key 18 Example of parameter setting 24 F factory 35 factory setting 13 35 Fast commissioning 6 Fault memory 12 Function 9 Functional faults 12 PZ BENDER Installation and connection 15 K Kl assignment alarm category 19 K2 assignment alarm category 19 L LED Alarm 1lights 18 LED Alarm 2 lights 18 M Manual self test 12 Manual target group 5 Menu AL response values 19 HiS history memory for the first alarm value 20 InF hard an
3. 12 928 Time delays b Cos Doer 12 2298 Clay sentem 13 3210 Response delay 13 3211 Delay on release oia toit etre iiis en 13 3 2 12 Password protection on OFF 13 3 2 13 Factory selling 13 3 2 14 Erasable history memory eese reete reete 13 4 Installation and connection seen 15 5 Operation and Setting 17 TGH1413en 09 2007 3 P BENDER Table of Contents 5 1 Display elements in use oi anto ie PO OO HER Im Opes 17 5 2 Function of the operating elements 18 33 Men SICUCLUFE siones notieren eo PED PEDES E o k 19 54 Display in standard mode esee ee teeten tentant 21 5 5 Display in menu mode ssesssssssssssessecsssessssecsesscsesscsesscsesecsesscsesscsecseseees 22 5 5 1 Parameter query and setting Overview sse 22 5 5 2 Setting the response values for loop resistance and the associated hysteresis 2 4 44 44140 4 20 0 0 010 2 4 0 8 4 44 25 5 5 3 Setting the response values for extraneous voltage ON seiner 26 5 5 4 Setting the fault memory and operating mode BI the alarm Elda tei 27 5 5 5 Assigning alarm categories
4. TGH1413en 09 2007 27 PE BENDER __ Operationand setting 5 5 5 Assigning alarm categories to the alarm relays Loop resistance extraneous voltage and device related errors can be as signed to the alarm relays K1 r1 1 and K2 12 2 By default K1 sig nals an alarm in case of too high loop resistance K2 signals an alarm in case of too high extraneous voltage Uy A few assignment examples for alarm relay K1 are illustrated below Alarm relay K1 Deactivating the category device error 28 TGH1413en 09 2007 Operationandsetting BENDER Alarm relay 1 Deactivating the category measuring current dis connection d gt 1 55 TGH1413en 09 2007 29 W BENDER eration and setting Alarm relay 1 Activating the category manual self test When analarm relay K1 K2 has been deactivated in the menu an alarm will not be signalled by the respective changeover contact An alarm will only be indicated by the respective alarm LED AL1 AL2 30 TGH1413en 09 2007 Operationandsetting 5 5 6 Setting time delays Use this segment to set a response delay t 0 99 s for K1 ton2 0 99 s for K2 a starting delay t 0 99 s when starting the device as well as a common release delay torr 0 99 s for K1 K2 This setting is only relevant when the fault memory M is deactivated The operating steps for the setting of the response delay t and the start up delay t are illus
5. ESKE EMAIL M 2 21 kV A1 A2 11 12 14 21 22 24 2 21 kV Supply voltage GM420 D 1 SUP I cus ee Y AC 16 72 V DC 9 6 94 V as 15 460 Hz GM420 D 2 cg E AC DC 70 300 V eM Tr 15 460 Hz lt 3 5 V Measuring circuit Loop resistance MESSUNG LINGEN P 0 100 Q I SUITING C ale DC 20 mA LISSE PIU GU ann nn lt DC24V Extraneous voltage U Measuring ee AC 0 50 V UNS E er 42 460 Hz Diseommection Ot the measuring einen gt 12 Reclbsiporthe deas UE ITIO nennen lt 10V tod lt 440 V Permissible extraneous DC voltage without influence on the measurement DCOV TGH1413en 09 2007 37 PE BENDER Technicaldata GM420 Response values Loop resistance gt R Alarm 1 m 0 1 100 Q Resolution orseting R 0 Le UL EE 010 Resolution orseting R mii E ER 1Q Preset function Loop resistance gt P R 0 5 2 x 1 5 Relative percentage error 0 1 20 96 1 digit Relative percentage error Las 10 u 5 96 1 digit Relative percentage error 1
6. oop resist in Q Alarm 1 response E de LSU UHys Hysteresis extran voltage Fault memory on off Operating mode K1 n o 2 Operating mode K2 n o Loop resistance at K1 too assian assig Measuring current discon mentalarm 1 OL ON out nection at K1 category output Extran voltage at K1 control Manual device test at K1 resistance at K2 too high 99 Measuring current discon mentalarm 2 OL off category nection at K2 Extraneous voltage K2 Manual device test at K2 TGH1413en 09 2007 19 Operation and setting Response delay K1 n ton2 Response delay K2 timing check Start up delay 2 Delay on release K1 K2 Parameter setting via pass Set word device gt Restore factory settings sys Function blocked Display hard software ver sion History memory for the first 20 TGH1413en 09 2007 Operationandsetting BENDER 5 4 Display in standard mode By default the resistance between the terminals E and KE is indicated on the display resistance or extraneous voltage can be displayed by using the 1 In the standard mode the currently measured values of the loop Up and Down keys In order to change the default display confirm your choice with Enter TGH1413en 09 2007 21 F BENDR Operation and setting 5 5 Display menu
7. 0 100 Dane 5 1 digit DOCU MN 1 40 25 Exiraneous voltage U AIT 2 anne 1 50V Q5 V vermag Nel E 0 5 V Relative percentage error Ur gt U in the range 50 60 Hz 2 96 1 digit Relative percentage error gt U in the range 42 460 Hz 10 96 1 digit pci l 1 40 5 Specified time SO ee ee 0 99 s 0 5 0 995 05 I 0 99 s 0 5 Operating time te when the loop is open R gt 50 KEQ un lt 40 ms Operating time ta when the loop is closed gt R ansehe lt 500 ms Operating time t if extraneous voltage Ur gt U and overload OL amp lt 100 ms Ln Gat tou Ptr ly Aij em M lt 300 ms Recovery time t after protective disconnection tnnt lt 15 Displays memory n LC display multi functional not illuminated MO ED WINS Nennen 0 100 Q Display range measured value Ur tnter AC 0 50 V Operating error loop resistance 0 1 Gd eene 20 96 1 digit Operating error loop resistance 1 100 Q
8. 0 is recommended to be used as a direc tive TGH1413en 09 2007 7 BZ BENDER Safety information TGH1413en 09 2007 PZ BENDER 3 Function 3 1 Device features Loop monitoring of the PE conductor in AC systems e Loop resistance measurement and indication in the range of 0 100 Q The extraneous voltage must not exceed A 12 V e Measurement and indication of an existing extraneous voltage U of AC 0 50V even when the resistance measuring circuit has been dis connected to provide protection e Measuring current lj DC 20 mA e Preset function Automatic setting of the response value for the loop resistance R gt e r m s value measurement of the extraneous AC voltage U gt U e Start up delay response delay and delay on release e Adjustable switching hysteresis for Rand U e Measured value display via multi functional LC display e Alarm indication via LEDs AL1 12 and changeover contacts K2 e N CorN O operation selectable e Password protection against unauthorized parameter changing e Fault memory can be deactivated 3 2 Function Once the supply voltage is applied the start up delay t is activated Measured resistance and voltage values changing during this time do not influence the switching state of the alarm relays The devices provide two individually adjustable measuring channels loop resistance extraneous voltage Ug When the measuring quantity exceeds the response valu
9. 13en 09 2007 Operation and setting PZ BENDER 5 6 Preset function factory setting to the measured resistance value is automatically set d On initial commissioning a pre defined response value in relation Hysteresis R Hys Extraneous voltage U Hysteresis U Hys Fault memory M Operating mode K1 R Operating mode K2 U Start up delay Response delay Delay on release Password 5 7 Commissioning Response value loop resistance gt Rm 0 5 x 1 5 25 96 25V 5 operation n o N O operation n o t 0s ton 05 ton2 05 toff 0 5 5 0 Off Prior to commissioning check proper connection of the GM420 nal preset function gt 05 2 x 1 5 After connecting a brand new GM420 to the supply voltage the d loop resistance response value is automatically set by the inter measured loop resistance TGH1413en 09 2007 35 BZ BENDER Operation and setting 36 TGH1413en 09 2007 PZ BENDER 6 Technical data GM420 factory setting Insulation coordination acc to IEC 60664 1 IEC 60664 3 Rated ESTO I o RII RR 400 V Rated impulse voltage pollution degree 4kV II Protective separation reinforced insulation between A2 E KE 11 12 14 21 22 24 Voltage test acc to IEC 61010 1 EKE AAJ 3 32 kV
10. 60 E mail info bender ca com Web http www bender org FZ BENDER
11. IEC 61326 Operating SMS Is ee 25 C 55 Classification of climatic conditions acc to IEC 60721 Stationary use 60721 3 3 nn 3K5 except condensation and formation of ice Transportation IEC 60721 3 2 2K3 except condensation and formation of ice Storage IEC 60721 3 1 een 1K4 except condensation and formation of ice Classification of mechanical conditions acc to IEC 60721 Stationary use IEC 1 398 ae 3M4 Transportation IEC 60721 3 2 eu 2 2 Storage IEC 60721 3 1 EE 1M3 Connection Connec ee ee screw terminals Connection properties rigid flexible conductor sizes nen 0 2 4 0 2 2 5 mm AWG 24 12 Multi conductor connection 2 conductors with the same cross section ec 0 2 1 5mm 0 2 1 5 mm omisi 8 9 mm Tightening torque een ee 0 5 0 6 Nm TGH1413en 09 2007 39 PE BENDER Technicaldata GM420 Other Operating m continuous operation ee any position Degree of protection internal components IEC 60529 IP30 Degree of protection terminals IEC ar ttp ctetur enn IP20 t E er polycarbonate align c r UL94 V 0 DIN ER TOY NETS run 60715 SU TING KT
12. Operating Manual GM420 Loop monitor to monitor the PE conductor in AC systems Software version D268 V1 0x Power in electrical safety TGH1413en 09 2007 FZ BENDER Bender Inc USA 700 Fox Chase Coatesville PA 19320 Toll Free 800 356 4266 Phone 610 383 9200 Fax 610 383 7100 E mail info bender org Canada 5810 Ambler Drive Unit 1 Mississauga ON LAW 4J5 Toll Free 800 243 2438 Phone 905 602 9990 Fax 905 602 9960 E mail info bender ca com Web http www bender org BENDER Group O Bender Inc All rights reserved Content subject to change PZ BENDER Table of Contents 1 Effective use of this manual 5 1 1 Notes TOR ee 5 1 2 Intended USS au 5 1 3 Fast commissioning of the loop monitor in AC systems 6 2 Safety n 7 21 Safety 7 2 2 Work activities on electrical installations sss 7 3 ilis mr 9 3 1 Device de dE BS een iita dede ee 9 CM lias 9 EL NEON 10 3 2 2 Protected measuring circuit eee 11 3 23 Automatic Self 12 3 24 Manual self test 12 325 uhctional aUl ne 12 12 3 2 7 Assigning alarms to the alarm relays K1 K2
13. arm relay K1 R2 r2 Alarm relay K2 Response value hysteresis as 96 Hys 96 OL Response value that is non adjust able is exceeded Overload Start up delay t Delay on release K2 Operating mode of the relays K1 K2 Password protection activated TGH1413en 09 2007 17 W BENDR Operation and setting 5 2 Function of the operating elements Power On LED green LED Alarm 1 lights yellow Response value gt R exceeded LED Alarm 2 lights yellow Response value gt U reached Display in standard mode Rm 0 9 Fault memory active Test button gt 1 5 s To indicate the available display ele ments to start a self test Up key lt 1 5 s Menu items values Reset button gt 1 5 s Deleting the fault memory Down key lt 1 5 s Menu items values MENU key gt 1 5 s Starting the menu mode Enter key lt 1 5 5 Confirm menu item submenu item and value Enter key gt 1 5 5 Back to the next higher menu level 18 TGH1413en 09 2007 Operation and setting 7 BENDER 5 3 Menu structure All adjustable parameters are listed in the columns menu item and ad justable parameters A display like representation is used to illustrate the parameters in the column menu item Different alarm categories can be assigned to the alarm relays K1 K2 via the submenus r1 r2 This is done by activation or deactivation of the respective function
14. d software ver sion 20 out output control 19 Set device control 20 t timing check 20 Menu structure 19 Mounting clip for screw fixing 40 N Notes for the user 5 TGH1413en 09 2007 41 2 BENDER O Operating elements function 18 Operation and setting 17 Ordering information 40 P Parameter query and setting 22 Parameter setting Activating or deactivating the password protection 32 Assigning alarm categories to the alarm relays 28 Deactivating the fault memo ry 27 Manual activation of the pre set function 34 Setting response values 25 Setting the operating princi ple of the alarm relays 27 Setting time delays 31 Password protection 13 Preset function 10 Protected measuring circuit 11 R Reset button 18 Response delay ton 12 31 S Setting response values Extraneous voltage gt U 26 Hysteresis extraneous voltage 26 Loop resistance gt 25 Loop resistance hysteresis 25 Starting delay t 31 Starting the menu mode 18 Start up delay t 13 T Technical data 37 Test button 18 Time delays 9 12 W Wiring diagram 16 Work activities on electrical instal lations 7 42 TGH1413en 09 2007 Bender Inc USA 700 Fox Chase Coatesville PA 19320 Toll Free 800 356 4266 Phone 610 383 9200 Fax 610 383 7100 E mail info bender org Canada 5810 Ambler Drive Unit 1 Mississauga ON LAW 4J5 Toll Free 800 243 2438 Phone 905 602 9990 Fax 905 602 99
15. e Alarm 1 or falls below the response value Alarm 2 the time of the response delays ton 1 2 begins When the re sponse delay has elapsed the alarm relays switch and the alarm LEDs TGH1413en 09 2007 9 P BENDER Function light When the measuring value exceeds or falls below the release value response value plus hysteresis after the alarm relays have switched the selected release delay torr begins When tor has elapsed the alarm relays switch back to their original state With the fault memory activat ed the alarm relays do not change their actual state until the reset but ton R is pressed 3 2 1 Preset function After connecting the device for the first time the response value for the loop resistance Alarm 1 is automatically set once only to the following value Response value loop resistance gt Rn 0 50 x 1 5 Extraneous voltage Preset Response value gt U Ur operating range gt R 25V Rm 0 5 Q x 1 5 max 100 If the measured resistance value is 66 the response value will au tomatically be set to 100 If loop resistances of approx gt 1 KQ exist the preset function will be ineffective Hence the previous response value will remain The mes sage AL not SEt appears on the display If you exit AL not SEt with Enter the response value will be set to 100 For details on how to change the response value manually refer to page 25 After restoring th
16. e factory settings the preset function is automatically active again Also refer to page 33 During operation the preset function can be started manually via the menu SEt Also refer to page 34 10 TGH1413en 09 2007 Function V BENDER 3 2 2 Protected measuring circuit During the loop resistance measurement the existing extraneous volt age must not exceed specified values If the extraneous voltage exceeds the limit values the measuring circuit will be disconnected Overload OL This protective mechanism will also be activated when the loop re sistance values are too high A separate measuring circuit ensures that extraneous voltages U gt U of 1 50 V will be monitored The table below shows the respective switching thresholds and the cor responding messages shown on the display Display The measuring circuit has been deactivated by the device soft ware The measuring circuit has been additionally deactivated by the device hardware additional R 215V 2 approx 5 If the extraneous voltage U falls below values lt 10 the loop resist ance measuring circuit will be activated again provided that the meas ured loop resistance does not exceed the limit of approx 1 TGH1413en 09 2007 11 PE BENDER Function 3 2 3 Automatic self test The device automatically carries out a self test after connecting to the system to be monitored and later every hour During the self test int
17. er nal functional faults are detected and will appear in form of an error code on the display The alarm relays are not checked during this test By default K1 signals the faults detected 3 2 4 Manualself test After pressing the internal test button for 1 5 s a self test is performed by the device During this test functional faults will be determined and appear in form of an error code on the display The alarm relays are not checked during this test While the test button T is pressed and held down all device related dis play elements are indicated on the display 3 2 5 Functional faults If an internal functional fault occurs all three LEDs flash An error code will appear on the display E01 E32 For example E08 means Incorrect internal calibration In such a case please contact the Bender Service 3 2 6 Fault memory The fault memory can be deactivated A stored fault can be deleted by pressing the reset button 3 2 7 Assigning alarms to the alarm relays 1 2 Different alarm categories can be assigned to the alarm relays K1 K2 via the menu out 3 2 8 Time delays t to and tor The times t ton and tor described below delay the output of alarms via LEDs and relays 12 TGH1413en 09 2007 Function V BENDER 3 2 9 Start up delayt After connection to the supply voltage the alarm indication is delayed by the preset time t 0 99 s 3 2 10 Response delay ton When the response value is reached t
18. ermi nals E and KE must not exceed AC 12 V The ohmic resistance of the conductor loop and the existing extraneous AC voltage Ur will be indi cated on the display Measurement results can be adversely affected by DC extraneous voltage U occurring during the resistance measurement process Separate supply voltage U is required TGH1413en 09 2007 5 PE BENDER Effective use of this manual 1 3 Fast commissioning of the loop monitor in AC systems If you are already familiar with the function of loop monitoring you can reduce the time for commissioning and connection using this brief de scription 1 4 Check that the PE conductor to be monitored is operated in an AC sys tem In addition check that the resistance of the conductor loop is lt 66 Q and that the extraneous voltage is U lt 12 V This is the precon dition for an automatic setting of the response values Preset after the first connection to the supply voltage When the loop resistance is gt 66 a response value of 100 will auto matically be set Make sure that the loop monitor is in the delivery status factory setting has not been changed In case of doubt restore the factory setting page 33 When the conditions 1 and 2 are satisfied you can connect the loop monitor according to the wiring diagram page 16 Once the device is connected to the supply voltage the device determines the loop resist ance Rm and automatically sets the response va
19. he loop monitor requires the re sponse time t4 until the alarm is activated A preset response delay ton 0 99 s adds up to the device related op erating time t and delays alarm signalling total delay time t4 ty Eu If the fault does not continue to exist before the time of the response delay has elapsed an alarm will not be signalled 3 2 11 Delay on release tog When no alarm exists after deactivating the fault memory the alarm LEDs go out and the alarm relays switch back to their original state The release delay 0 99 s allow to maintain the alarm state for the selected period 3 2 12 Password protection on OFF After activating the password protection on settings are only possible when the correct password 0 999 has been entered If you cannot op erate your device because you cannot remember your password please contact info bender service com 3 2 13 Factory setting FAC After activating the factory setting all settings previously changed are reset to delivery status In addition the preset function allows automatic adaptation of the response value in relation to the loop resistance 3 2 14 Erasable history memory The first alarm value that occurs will be stored in this memory Subsequent alarms do not overwrite this old value The memory can be cleared using the Clr key in the menu HiS TGH1413en 09 2007 13 PZ BENDER Function 14 TGH1413en 09 2007 PZ BENDER 4 Installatio
20. lue gt for the loop resistance Ry Response value gt Rm 0 5 Q x 1 5 Example Rm 2 5 Resulting response value 2 5 0 5 Q x 1 52 4 5 Q The currently measured loop resistance between the terminals E and KE appears on the display In addition you can query the existing extra neous voltage U using the UP and DOWN keys For detailed information about the preset function refer to page 10 Page 35 provides a summary of all factory settings If you want to reset the loop monitor to its factory settings refer to the description on page 33 TGH1413en 09 2007 PZ BENDER 2 Safety information 2 1 Safety instructions In addition to this data sheet the documentation of the device includes a sheet entitled Important safety instructions for BENDER products 2 2 Work activities on electrical installations All work activities necessary for installation commissioning or work activities during operation of electrical devices or systems are to be car ried out by adequately skilled personnel Observe the relevant regulations applying to work on electrical instal lations in particular DIN EN 50110 or its subsequent regulation Unprofessional work activities on electrical installations may result in a threat of danger to life and limb If the equipment is used outside the Federal Republic of Germany the respective national standards and regulations are to be observed The European standard EN 5011
21. mode 5 1 Parameter query and setting Overview D Adjustable parameter Response values query and setting Loop resistance gt AL1 Hysteresis of the response value Hys gt Extraneous voltage gt U AL2 Hysteresis of the response value Hys gt U Configuration of the fault memory and the alarm relay Activating deactivating the fault memory Select N O operation n o or operation n c individually for each K1 K2 Assign the alarm categories loop resistance extrane ous voltage or device error individually to each K1 K2 1 r1 2 r2 Setting delays Response delay t n1 ton Start up delayt Delay on release tor LED relay Device control parameter setting Enable or disable password protection change the Set password Restore factory setting Starting preset function Service menu SyS blocked Query hard and software version Query the first stored alarm value Move to the next higher menu level back 22 TGH1413en 09 2007 Operation and setting Menu structure PZ BENDER TGH1413en 09 2007 23 POBENDER __ __ _ Operationand setting Parameter settings An example is given below on how to change the alarm response value for the loop resistance R Proceed as follows 1 Pressthe MENU Enter key for more than 1 5 seconds The flashing short symbol AL appears on the display 2 Confirm with Enter The symbols R fla
22. n and connection Ensure safe isolation from supply in the installation area Ob serve the installation rules for live working General dimension diagram and drawing for screw fixing Zubeh r 9 2 Accessory a N a 36 mm 5 _ 90 mm The front plate cover is easy to open at the lower part marked by an arrow 15 TGH1413en 09 2007 PE BENDER Installation and connection 1 DIN rail mounting Snap the rear mounting clip of the device into place in such a way that a safe and tight fit is ensured Screw fixing Use a tool to move the rear mounting clips a second mounting clip is required see ordering information to a position that it projects beyond the enclosure Then fix the device using two M4 screws 2 Wiring Connect the device according the wiring diagram 1 2 Us IT System A BA eA I IE CERA Terminal Connections 1 2 Connection to supply voltage U Connection to PE conductor equivalent to functional earth Connection to monitoring conductor 11 12 14 Alarm relay K1 21 22 24 Alarm relay K2 16 TGH1413en 09 2007 PZ BENDER 5 Operation and setting 5 1 Display elements in use A detailed description of the meaning of the display elements is given in the table below Loop resistance Alarm 1 Extraneous voltage Alarm 2 Function Display elements in gt 1 r1 Al
23. sh Confirm with Enter the current value for Q flashes 4 Usethe Up or Down key to set the appropriate response value Confirm with Enter gt R flashes 5 Youcan exit the menu by Pressing the Enter key for more than 1 5 seconds to reach the next higher level or selecting the menu item ESC and confirming with Enter to reach the next higher level The currently active segments are flashing In the figures be low the segments where device settings can be carried out are highlighted by an oval The menu mode can be reached by pressing the MENU key for more than 1 5 seconds p 24 TGH1413en 09 2007 Operationandsetting BENDER 5 5 2 Setting the response values for loop resistance and the as sociated hysteresis Set the resistance value at which an alarm is to be signalled Setting the response value for the loop resistance e 2x gt 1 5 TGH1413en 09 2007 25 PE BENDER eration and setting 5 5 3 Setting the response values for extraneous voltage and hysteresis Set the extraneous voltage response value at which an alarm is to be sig nalled Setting the extraneous voltage response value gt U 6 sedg Gb 2x d gt 1 5 Setting the hysteresis for extraneous voltage pi BH ME 6 91 co 26 TGH1413en 09 2007 Operationandsetting BENDER 5 5 4 Setting the fault memory and operating mode of the alarm relays Deactivating the fault memory 2x 21585
24. to the alarm relays 28 5 5 6 Setting time delays a 31 5 5 7 Factory setting and password protection 32 5 5 8 Restoring factory setting 4 33 5 5 9 Manual activation of the preset function see 34 5 5 T0 Device information QUEL sooo v RES Re Ro eene ret 34 5 5 T T History memory query 34 5 6 Preset function factory setting eese tetentnntnnes 35 5 7 COMMISSIONING 35 6 Technical data GMA20 nei 37 6 1 Standards approvals and certifications sss 40 62 Ordering information au tst evite ies 40 4 TGH1413en 09 2007 PZ BENDER 1 Effective use of this manual 1 1 Notes for the user This manual is intended for experts in electrical engineering and electronics In order to make it easier for you to find specific text passages or refer ences in this manual and for reasons of comprehensibility important in formation is emphasized by symbols The meaning of these symbols is explained below Information calling attention to hazards are marked with this warning symbol Information intended to assist the user to make optimum use ofthe product are marked with the Info symbol 1 2 Intended use The loop monitor of the 420 series is designed to monitor the PE conductor in AC systems The extraneous voltage U between the t
25. trated by way of example Setting the response delay ton 2222 0 amp y ton ton TGH1413en 09 2007 31 POBENDER 5 5 7 Factory setting and password protection Use this menu to activate the password protection to change the pass word or to deactivate the password protection In addition you can re set the device to its factory settings a Activating the password protection b Changing the password 32 TGH1413en 09 2007 Operationandsetting BENDER c Deactivating the password protection GEE on gt t Quos nce n 2x OFF 4 5 5 8 Restoring factory setting TGH1413en 09 2007 33 PE BENDER __ _ _ _ Operationand setting 5 5 9 Manual activation of the preset function If loop resistances of approx gt 1 exist the preset function will be ineffective The message AL not SEt appears on the display 5 5 10 Device information query This function is used to query the hardware d and software 1 xx versions After activating this function data will be displayed as a scroll ing text Once one pass is completed you can select individual data sec tions using the Up Down keys 5 5 11 History memory query The history memory can be selected via the menu HiS Use the Up and Down keys to view the next display If Clr is flashing the history mem ory can be cleared by pressing the Enter key 34 TGH14
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