background image

 

 

This manual contains technical information for the 

P-1400 

Loop Detector 

pn 889-1600-04 Revision: April 2020 

 

 

 

P-1400 

 

Loop Detector 

Firmware Version 4.02 

Operations Manual 

 

Four Channel Menu Drive Programmable Inductive Loop Vehicle 

Detector Designed for Railroad Applications 

Four Loop Inputs, Two Vital Outputs, and One Vital Input 

Built-in Loop Analyzer for Each Channel 

 

 

Summary of Contents for P-1400

Page 1: ...04 Revision April 2020 P 1400 Loop Detector Firmware Version 4 02 Operations Manual Four Channel Menu Drive Programmable Inductive Loop Vehicle Detector Designed for Railroad Applications Four Loop I...

Page 2: ......

Page 3: ...BLICATION REPRODUCTION OR USE IN WHOLE OR PART IS NOT PERMITTED EXCEPT UNDER TERMS AGREED UPON IN WRITING ALL REGISTERED TRADEMARKS OF EBERLE DESIGN INC ARE UNDER COPYRIGHT MAINTENANCE NOTE IT IS AN E...

Page 4: ......

Page 5: ...Pin Assignments DB 9 Communication Interface Connector 10 Section 4 User Interface 11 Section 5 Installation and Set Up 12 5 1 Initial Installation Start up Mode Display Screens 14 5 2 Program Mode D...

Page 6: ......

Page 7: ...le being programmed An eight segment bargraph at the top of the LCD provides a graphical representation of the relative change of inductance as seen by the detector This automatically takes into accou...

Page 8: ...te is indicated by OFF flashing on the LCD This option can be selected from the Sensitivity menu in Program Mode and is useful for checking controller response and other troubleshooting activities 2 3...

Page 9: ...king Rate 5 4 06 Tracking Rate 6 4 07 Tracking Rate 7 4 08 Tracking Rate 8 2 7 OPTION 5 SENSITIVITY BOOST Each loop input s Option 5 has five settings ranging from 5 00 to 5 04 When Option 5 is set to...

Page 10: ...al Output option can be toggled ON or OFF by momentarily pressing either the UP or DOWN pushbutton When Option 10 is enabled ON the Auxiliary Vital Output will assume the state opposite to that of the...

Page 11: ...iously programmed settings including any mapped output s 2 17 DIAGNOSTIC FEATURES ACTIVATION When the detector is operating in normal mode pressing either the UP or DOWN pushbutton will temporarily ac...

Page 12: ...or is 0 068 microFarad LIGHTNING PROTECTION The detector can tolerate without damage a 10 microFarad capacitor charged to 2 000 volts being discharged directly into the loop input terminals RESET Appl...

Page 13: ...on the LCD will extinguish and the loop input channel will resume operation in a normal manner except the Loop status LED will continue the three flashes per second display pattern thus providing an a...

Page 14: ...me and then proceed to sequentially scan their respective channel 2 3 and 4 loop inputs When the detector system is configured to operate in Parallel Synch mode it is necessary for one detector to be...

Page 15: ...530 110 278 58 2 2 56 121 25 268 52 278 58 400 80 278 58 530 110 278 58 3 1 28 121 25 268 52 278 58 400 80 278 58 530 110 278 58 4 0 64 121 25 268 52 278 58 400 80 278 58 530 110 278 58 5 0 32 121 25...

Page 16: ...3 2 Terminals Loop 3 2 Terminals Check Loop 4 2 Terminals Loop 4 2 Terminals Vital In Vital In Reset Synch In Synch Out Vital Outputs Out Vital Outputs Out Vital Outputs Aux Vital Outputs Aux Power Ea...

Page 17: ...ult has Occurred Seven Segment Display Parameter Values Frequency Reading Inductance Value L L Value Output Mapping Type of Loop Failures Lhi Open Loop L lo ShortedLoop Numbered Loop Symbols Loop Inpu...

Page 18: ...the Program Mode The FUNC pushbutton has an auto repeat function This allows quick navigation to the desired parameter The FUNC pushbutton only moves forward through all of the parameters There is no...

Page 19: ...400 Operations Manual Rev Apr 2020 Page 13 of 33 P 1400 Motherboard Dimensions 1 75 4 00 1 50 3 75 1 00 6 55 11 00 7 50 Detector Electronics Housing 3 41 Diameter Hole in Motherboard 19 Diameter Mount...

Page 20: ...firmware version 3 This screen will be displayed for two seconds The next LCD screens displayed will show the Detector ID setting The display will toggle between the two screens shown with a 50 duty...

Page 21: ...he check loop verification is are turned off i e the Loop Check Timer of the loop s is set to 000 If the check loop verification process continues for the entire 55 second period and no action has bee...

Page 22: ...NOTES This option is a detector wide setting Changing it for one loop input changes it for all loop inputs This option will automatically turn off in 15 minutes PARAMETER Option 2 Percentage of Induct...

Page 23: ...t on for one loop input turns it off for all other loop inputs This option will automatically turn off after 15 minutes PARAMETER Loop Check Timer setting SETTINGS 256 selections 000 to 255 minutes in...

Page 24: ...t display will show currently selected setting 7 SEGMENT DISPLAY Currently selected Extension time in seconds DEFAULT SETTING 00 0 seconds EXAMPLE Extension of 2 5 seconds selected for the Primary Vit...

Page 25: ...lay screen shows the bargraph and two of the seven segment display characters The left character will flash indicating the current setting and the four leftmost bargraph segments will show the corresp...

Page 26: ...nt Loop Status Input 3 next segment Loop Status Input 2 next segment Loop Status Input 1 In Vital Input mode the sixth segment from left Vital Input In Health Status Input mode the rightmost segment H...

Page 27: ...lay characters and bargraph display are shown below Display Setting Loop Status Inputs Selected Any Input on Loops 4 3 2 or 1 will be mapped to the Auxiliary Vital Output Any Input on Loops 4 3 or 2 w...

Page 28: ...e various combinations of display characters and bargraph display are shown below Display Setting Health Status Inputs Selected Any Input on Health Status 4 3 2 or 1 will be mapped to the Auxiliary Vi...

Page 29: ...hannel 1 Loop Lead In circuit inductance is 98 microHenries and it is not detecting a vehicle NOTES If Option 2 L L Display is ON this display is only shown when the channel is not detecting a vehicle...

Page 30: ...If the error message does not clear the motherboard mounted EEPROM is defective Return the detector to the factory for servicing Warning If the error message clears after pressing the FUNC pushbutton...

Page 31: ...icroprocessor to the internal EEPROM and the motherboard mounted EEPROM If the error message does not clear the internal EEPROM and the motherboard mounted EEPROM are defective Return the detector to...

Page 32: ...an open a shorted or a relative 25 L L failure The detector will perform a loop check test on all programmed channels two seconds after start up or two seconds after a reset NOTE If the Loop Check Tim...

Page 33: ...r except the LED will continue the three flashes per second display pattern thus providing an alert that a prior Loop Fail condition has occurred Each loop failure is counted and accumulated into the...

Page 34: ...Option 2 Loop Inductance L L Display for all loop inputs and Option 6 Audible Detect Signal for the loop input indicated in the lower portion of the LCD All three of these diagnostic options will rema...

Page 35: ...hbutton will accept the parameters stored on the internal EEPROM and store them on the motherboard mounted EEPROM i e copy the internal EEPROM parameters to the motherboard mounted EEPROM Parameters s...

Page 36: ...VDC GND Front Panel Pushbutton Switches 32 MHz Oscillator Audible Buzzer Loop Capacitors Loop Capacitors Loop Capacitors RS 232 Communication Input RS 232 Communication Output Check Loop 1 Inputs Che...

Page 37: ...sine wave from each loop oscillator circuit is squared to provide a precise zero crossing signal for the input to the microcontroller This signal is called the loop sample The loop sample is an integ...

Page 38: ...measure the resistance from one of the loop wires to earth ground It should be greater than 50 megOhms If lower separate the splice at the pull box and isolate the problem to the loop or lead in cabl...

Page 39: ...2 3 4 L 24 x 9 3 4 L 24 x 12 4 L 24 x 3 L 72 microhenries The inductance of a QuadrupoleTM loop can be estimated using the formula L P x TOL 2 TOL 4 CL x TCL 2 TCL 4 Where L Loop Inductance in microhe...

Reviews: