Installation Bulletin: iso685
Contents
1. 74 BENDER The Power in Electrical Safety This document is intended as a reference guide for installing and using a BENDER iso685 ground fault detector This document includes installation setup and usage instructions For complete details including installation setup settings and troubleshooting refer to the complete iso685 user manual 1s0685 Installation Bulletin Reference Guide This document is intended as a supplement and not a replacement to the complete user manual MENU Only qualified maintenance personnel shall operate or service this equipment These instructions er TEST INFO should not be viewed as sufficient for those who are not otherwise qualified to operate or service this een 20K 10K equipment This document is intended to provide accurate information only No responsibility is as sumed by BENDER for any consequences arising from use of this document Installation Mounting The iso685 is a DIN rail mounted device See reverse side for dimensions Wiring General See figure 1 for basic wiring schematic Line connections L1 and L2 may use the schematic below for systems be low 793 VAC or 1000 VDC If a voltage coupler is used to connect to the system refer to the complete user manual for the specific wiring diagram Use minimum AWG 24 maximum AWG 12 wire When wiring is com plete replace the terminal cover making sure it clicks For more information refer to the iso685 user manual2. In addition to the AC DC 100 240 V supply voltage via A1 A2 terminals the device may also be powered by 24 VDC connected to the X1 connector Refer to Wiring Connector X1 for more information Do not connect both simultaneously DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION OR ARC FLASH e Disconnect all power before servicing e Observe all local state and national codes standards and regulations 1 AC System 3 AC System DC System ESC TEST gt SERVICE i i Stunde 1626 1652 INFO T 1 3 K ALARM 1 ALARM 2 1 8 11 10 9 7 8 1 Connection to 1 AC system Alarm relay K1 SPDT dry contact 2 Connection to DC system Alarm relay K2 SPDT dry contact 3 Connection to 3 AC system Switchable termination resistor used 4 Supply voltage connections 100 240 when connecting to Bender RS 485 bus VAC 5 A fuses required 10 Ethernet port currently inactive 5 Line connections to monitored system 11 Connector X1 for digital inputs RS 485 6 Connections to equipment protective analog output see below ground Wiring Contacts Using a normally closed or normally open contact utilizes two factors wiring out of the proper terminal and setting the respective contact to normally energized or deenergized operation Refer to the chart below for relay conditions Changing the energized state of the contact is done via the Relay 1 and Relay 2 options option Mode fou
3. are lit A RESET MEST isoGraph Data trending screen The iso685 includes the isoGraph features which provides onboard data trending of the sys tem insulation resistance over time The isoGraph feature is particularly useful for trouble shooting ground faults into a time frame To utilize this feature access it through Data isoGraph 2 man en mm mm on om ee on n mn ma 1 Analog Outputs Linear option If a linear analog output is selected the insulation resistance is 10 kQ at the high value and 10 MQ at the low value and linerally proportional in between Nonlinear output If the nonlinear output is selected it is calculated using the following formula R Insulation resistance in kQ A Lower value analog output i e 0 for 0 20 mA A Upper value analog output i e 20 for 0 20 mA A measured analog output value Roy Selected midpoint value 28 120 kQ R A2 A Rsxm _ Rskm A A Document NAE1018021 09 2014 e Benderlnc e Page1 1 e Side 2 2
4. citance if your system meets one or more of the following requirements e Very large distribution network i e rated for 2000 A or more e System contains a high quantity of power conversion equipment inverters VFDs e The application typically includes high leakage capacitance such as ships and solar arrays Refer to the table below NOTE Power conversion refers to AC DC or frequency conversion equipment including but not limited to rectifiers inverters and variable frequency drives VFD ASD Profile name system specs voltage Application frequency leak capacitance Up to 690 VAC 15 460 Hz Up to 1000 VDC 0 150 uF Standard AC and DC power distribution systems with no power Power circuits N conversion equipment Suitable for general applications Up to 230 VAC 15 460 Hz Up to 230 VDC 0 150 uF Designed for low voltage AC DC control systems with no power Control circuits conversion equipment Up to 690 VAC 15 460 Hz Designed for generator monitoring applications with no power Up to 1000 VDC conversion equipment as well as systems with an extremely low 0 5 uF leakage capacitance Generator Up to 690 VAC 15 460 Hz Up to 1000 VDC 0 1000 uF Designed for applications with high leakage capacitances inlcuding alae pata very large systems ships and solar applications Up to 690 VAC 10 460 Hz Up to 1000 VDC 0 20 uF Use this profile when using standard power con
5. he positive line Symmetrical alarm when DC fault s are detected with no significant pull on either line e Internal device error e Common alarm activates on any of the above alarms e Device inactive iso685 is put into standby mode Each relay can trigger up to 3 types The analog output and buzzer can trigger on insulation resistance fault only For the relays to trip on any alarm set the function to Common alarm For more information refer to Figure X device relay conditions Figure X menu flow chart and the complete iso685 user manual Menu structure flow chart Figure 5 shows the structure of the menu built into the iso685 The menu is used for viewing alarms viewing the status of the system and making any necessary settings changes Use the supplied gray boxes to take note of applied settings for future reference For detailed descriptions of each menu option refer to the complete iso685 user manual P Menu or settings option P Settings option essential for proper operation on off See reverse page AC 3AC DC none coupler active inactive 0 1208 100 ms 300 s 100 ms 300 s test reset standby See reverse page active passive See reverse page See reverse page 6 Analog 0 4 20 mA 0 10V linear 28kQ 120kQ 3 TEST resistance DC shift TEST 2 RESET 5 Device settings 1 Language 2 Clock 1 Bms 1 Address 1 150 4 Display 1 Brightness e e D
6. imensions Dimensions in inches mm 1 10 4 25 1 08 43 Bender Inc USA 800 356 4266 610 383 9200 info bender org e Canada 800 243 2438 905 602 9990 info bender ca com 1so685 Installation Bulletin Reference Guide Displays and controls SERVICE ALARM 1 ALARM 2 1 A button Up button increase value in TEST button Activates self test gt menu button Right forward button select 2 RESET button Resets device in parameter latched mode lt button Back button INFO button Displays system infor select parameter mation OK button Confirms values 3 DATA button Displays data values v LED ON Power applied to the device button Down button decrease value in Alarm LED indicators SERVICE 1 2 e www bender org menu Backlit LCD display 4 MENU button Enters main menu ESC button Return to previous menu level Using the iso685 Complete list of features Consult the iso685 user manual for a complete list of features and instructions for use Navigating the device Use the buttons to the right of the screen to navigate the information screens and the menu All button labels are backlit depending on the current location in the menu only the usable but tons will be backlit Not all keypad labels may be visible at once In the example shown below the device is in alarm Only the usable button labels for that screen
7. menu Refer to the menu flow chart on the reverse side for more information Do not connect the 24 VDC supply voltage and supply via A1 A2 simultaneously 1 Input 1 2 Input 2 3 Input 3 A RS 485 A 11 12 I3 AB B RS 485 B Q1Q2M L F LAV Q1 Output 1 X1 Q2 Output 2 M Analog output I Ground Example wiring for external test reset and standby is shown to the right Note that the correct option must be set in the menu under Func tion for each digital input Test Initial setup Initial steps e Select the language e Set the date and time Set the system type choose DC for DC systems AC for single phase AC systems and 3AC for three phase AC systems In systems with power conversion the system type that should be selected should be the type at the point that the iso685 is connected e Ifa voltage coupler is used select the correct one Otherwise select None Profile selection Selecting a profile allows for an automatic setup of key system parameters required for opera tion Select the profile that closest matches your application Detailed descriptions of profiles are listed below As a general guideline For standard AC DC power distribution with no power conversion select Power circuits e For low voltage AC DC control systems select Control circuits e Forsystems with small to mid size inverters VFDs select Inverter gt 10 Hz Select High capa
8. nd in the main menu Relay operation setting Device alarm state Relay K1 State Relay K2 State 11 12 CLOSED 11 14 OPEN 21 22 CLOSED Normally de energized mode Power ON normal state 21 24 OPEN N D no alarms Non failsafe mode N O in device settings menu 11 12 CLOSED 11 14 OPEN 21 22 CLOSED Power OFF 21 24 OPEN Energized in the alarm state Relay will switch when the KUUSE 11 12 OPEN alarm is activated 11 14 CLOSED 21 22 OPEN Power ON alarm state 21 24 CLOSED Normally energized mode Power ON normal state N E no alarms Failsafe mode N C in device settings menu 11 12 OPEN 11 14 CLOSED 21 22 OPEN 21 24 CLOSED 11 12 CLOSED 11 14 OPEN 21 22 CLOSED Power OFF 21 24 OPEN Energized in the normal state Relay will switch when the alarm is activated on device startup or when power to the device is lost 11 12 CLOSED 11 14 OPEN 21 22 CLOSED Power ON alarm state 21 24 OPEN Bender Inc e USA 800 356 4266 610 383 9200 info bender org e Canada 800 243 2438 905 602 9990 info bender ca com www bender org ALARM 2 Installation continued Wiring Connector X1 The X1 connector provides a series of low voltage inputs including digital inputs connections to Bender RS 485 bus and the analog output Typically these functions are used for remote test remote reset analog output and RS 485 The function that these inputs utilize must be set in the
9. version equipment If the system contains a high amount of power conversion equipment select High capacitance profile Inverter gt 10 Hz Up to 690 VAC 1 460 Hz Up to 1000 VDC 0 20 uF Use this profile when power conversion equipment is used that Inverter lt 10 Hz ai continuously runs at an extremely low frequency Document NAE1018021 09 2014 e Benderlnc e Page1 1 e Side 1 2 74 BENDER The Power in Electrical Safety Initial setup continued Alarm value Alarm values for insulation resistance vary by system due to the type of connected loads and general system conditions Adjust the alarm values to appropriate levels based on the system that is connected to As a general rule for setting initial alarms values of 100 O V for the pre warning and 50 Q V are recommended These may be adjusted afterwards as prevailing sys tem comditions warrant Outputs Two SPDT contacts are available for alarm outputs The relays energizing behavior is described in the table Device relay conditions Under the FUNCTION menu option for each relay the relay can be set to trip on individually assigned alarms Each relay and digital output can trigger on the following e Insulation resistance fault prewarning alarm e Insulation resistance fault main alarm e Connection error e DC alarm when a sufficient DC fault is detected on the negative line e DC alarm when a sufficient DC fault is detected on t
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