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Electro-Sensors PM500 User Manual

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PM500 User's Manual

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Summary of Contents for Electro-Sensors PM500

  • Page 1 PM500 User’s Manual...
  • Page 2 Fax: 952.930.0130 Copyright © 2014 Electro-Sensors, Inc. All rights reserved. No part of this document can be duplicated or distributed without the express written permission of Electro-Sensors, Inc. While the information in this manual has been carefully reviewed for accuracy, Electro-Sensors, Inc. assumes no liability for any errors or omissions in the information.

  • Page 3: Table Of Contents

    Application Examples ..............................16 Appendix A—Panel Cutout Dimensions ........................17 Wiring Practices for Industrial Equipment ........................18 Appendix B—Wiring the PM500 ..........................19 AC Input Power Supply (TB1-1, TB1-2) ........................19 485 communications (TB1-4 to TB1-6) ........................19 Switch inputs (T1-7 to TB1-9) ........................... 19 4/20 mA Analog Input (TB2-10 to TB2-15) ......................
  • Page 4 List of Figures Figure 1; key assignments for Keypad control of the relay outputs ................. 6 Figure 2; PM500 Modbus wiring diagram ........................12 Figure 3; PM500 Wiring diagram ..........................20 Figure 4; 2 Relay outputs wiring diagram ........................21 Figure 5;...

  • Page 5: Introduction To This Manual

    PM500 Programmable Process Ratemeter. It should serve as your technical resource to install, set up, operate, and test the PM500. Keep in mind that the function of the PM500 installed in a mechanical process is to monitor Who should use this manual position, capacity, speed, etc;...

  • Page 6: Introduction To This Product

     The PM500 has either two SPDT relay outputs or four SPDT with programmable functions (UNUSED, UNDER and OVER).  The PM500 has an option for 2 16 bit 4 to 20 mA output signals, which are isolated from the 4 to 20 mA input signals.

  • Page 7: The User Interface

    Then, press the ENTER key to accept that value and return to level 1—the user units display level. When the user accepts a value the PM500 will test it and will not allow an out-of-range or illegal value.

  • Page 8: The User Interface Tables

    Change variable using arrow keys and press ENTER key to accept or Var Key to abort Press Var Key to exit Variable Menu. Note: Access to the VAR menu is still permitted during an LRC error in the PM500’s non-volatile memory...

  • Page 9: Diagnostics Neumonics

    Diagnostics Neumonics Diagnostic Display Value Function You have Entered Diagnostic Mode dIAG dIAG Diagnostics Output percent “0XXX”. Verify your analog out by scrolling Anou from 0 to 100% 0 = 4 mA Analog Output 100 = 20mA Read current Switch state Read current switch state Switch Input Relay states.

  • Page 10: (Secr Menu) The Security Variables

    (SECR Menu) The Security Variables The SECURITY menu is accessed by pressing the DECIMAL POINT key. In the security menu the user has access to three variables. The input password variable (PIn), the password definition variable (PdEF), and the security definition variable (SdEF). The security features defined by the security definition variable ‘SdEF’...

  • Page 11: User Variable Descriptions And Formats

    User Variable Descriptions and Formats (Var 01 to Var 04) Relay Output Setpoints User Variable 01— Variable 04 These variables contains the trip point levels for relays. It is a value entered as user units. They can have decimal places and be positive or negative. (Var 07) Relay ADC Select User Variable 07—Relay ADC select.

  • Page 12: Figure 1; Key Assignments For Keypad Control Of The Relay Outputs

    Output Key assignment for keypad control Relay state Relay 1 Up key Only 1 relay programmed for Keypad control Relay 2 Down key can be active at a time. It is the relay that is Relay 3 Left key associated with the currently pressed key. Relay 4 Right key Figure 1;...

  • Page 13: (Var 09) Switch Input Function

    (Var 09) Switch Input Function This is not implemented at this time...

  • Page 14: (Var 10 & Var 12) Analog Input A& B User Units At Lower Calibration Point

    (Var 10 & Var 12) Analog Input A& B User Units at Lower Calibration Point User Variable 10—Analog Input A User Units at lower calibration point (typically at 4 mA input). User Variable 12—Analog Input B User Units at lower calibration point (typically at 4 mA input). This variable (a.k.a.

  • Page 15: (Var 17) Display Function Select

    (Var 17) Display Function Select Controls which real-time value is displayed by the user interface. The default function code is 0 (display in User Units). The following table gives the display function codes and a description of their meanings. If both inputs are enabled pressing the rate key will toggle between the inputs.

  • Page 16: (Var 20 & 22) Analog Output Minimum Rate In User Units

    Analog Output Minimum Rate in User Units: (4 mA output setpoint). Var20 is used to set the point where the PM500 will output 4 mA on channel “A” when the display is at this value. Var22 is used to set the point where the PM500 will output 4 mA on channel “B” when the display is at this value (Var 21 &...

  • Page 17: (Var 34) Modbus Integer Encoding

    (Var 34) Modbus Integer Encoding Modbus integer encoding: sets how the integer is returned. Values 0-2 are valid. Integer only output (default) Entire display output. Decimal encoded. Option zero (0) only shows the integer portion of the number and cannot show the sign value if using unsigned type. This applies to all variables.

  • Page 18: Modbus Wiring Diagram

    Modbus Wiring Diagram Figure 2; PM500 Modbus wiring diagram...

  • Page 19: Programming The Analog Inputs

    During an LRC error the PM500 goes into a ‘fail-safe’ mode. It does not show the real-time display, but rather shows the message “LrC”. Also for an LRC error the relay outputs drop-out and the 4-20 mA analog output holds at 4.00 mA due to the corruption of the user variables.

  • Page 20: (Diag Menu) The Diagnostic Functions

    (DIAG Menu) The Diagnostic Functions The DIAGNOSTIC menu is accessed by pressing the DIAG key. Once inside the Diagnostics Menu, press the UP and DOWN arrow keys to scroll through the list of diagnostic functions. Each of the diagnostic functions is explained below.

  • Page 21: (Offs)How To Calibrate The Analog Input Offset

    (OFFS)How to Calibrate the Analog Input Offset This procedure calibrates the analog input (via calibrating the A/D converter’s low end-point). - The 4 mA low-end is initially factory calibrated via defaults, which for temperature probes should be more than adequate. When necessary follow the steps below. Calibrating the 4/20 mA analog input.

  • Page 22: Application Examples

    PM500 can be programmed to display the slide gate position as a percentage, from 0% open to 100% open. The user simply then has to view the PM500 displayed value to know the position of the slide gate at the bottom of the hopper storage bin.

  • Page 23: Appendix A-Panel Cutout Dimensions

     Slide the PM500 into the panel cutout.  Replace the mounting brackets and tighten the bracket screws (do not over tighten the bracket screws). Allow a minimum of 1.5 inches clearance on all sides of the PM500. 2.58 PANEL CUTOUT 4.31...

  • Page 24: Wiring Practices For Industrial Equipment

    Wiring Practices for Industrial Equipment All control signals must be shielded cable. The shield must be tied to common or earth ground at the receiving end only. In some environments earth ground may contain excessive electrical noise. If you have problems using earth ground as a shield tie point, switch the shields to signal common.

  • Page 25: Appendix B-Wiring The Pm500

    TR5 100 mA Slow-Blow for 115 VAC, TR5 50 mA Slow-Blow for 230 VAC. 485 communications (TB1-4 to TB1-6) A two conductor shielded cable should be used for this connection. The shield should be tied to the PM500 common, not earth ground.

  • Page 26: Wiring Diagrams

    Wiring Diagrams Figure 3; PM500 Wiring diagram...

  • Page 27: Wiring Diagrams Continued

    Wiring Diagrams continued. Figure 4; 2 Relay outputs wiring diagram Figure 5; 6 Relay outputs wiring diagram...

  • Page 28: Appendix C-Pm500 Specifications

    Appendix C—PM500 Specifications Power Description Input power Standard: 115 VAC 50/60 Hz, 9 VA Switchable: 230 VAC 50/60 Hz, 9 VA Fusing (internal) 100mA TR5 Slow-Blow recommended for 115 VAC 50mA TR5 Slow-Blow recommended for 230 VAC Sensor Supply Description...

  • Page 29: Variable Logs

    Variable Logs User Variables Log Variable Default User Range of Modbus Page Variable Name move Number Value Value Values Address Ref. enabled User units Set Point 1 0005 41010 limitation User units Set Point 2 0095 41020 limitation User units Set Point 3 0005 41030...

  • Page 30: Communication Variables Log

    Communication Variables Log Variable Default User Range of Modbus Page Variable Name move Number Value Value Values Address Ref. enabled 000XX Modbus Node 0001 41300 X = 1-247 000X Modbus Baud 0003 41310 X = 0-4 000X Modbus Parity 0000 41320 X = 0-2 Modbus Data...

  • Page 31: Security Variable Log

    Security Variable Log Variable Default User Modbus Page Variable Name Range of Values move Number Value Value Address Ref. enabled Password PdEF 0500 0001–9999 None 41520 Definition Password 0500 0001–9999 None 41530 Input X00X SdEF Security Definition 1001 None 41540 (X is 0 or 1) Table 14;...

  • Page 32: Index

    Analog output test, 12 Programming the relay outputs, 11 Appendix Panel cut out dimension, 15 Specifications, 20 Wiring the PM500, 17 Relay ADC Select, 5 Relay output function, 5 Relay output Setpoints, 5 relay test, 12 Calibrating the input, 14...
  • Page 33 21 Analog output maximum rate in user units CH A, 8 35 Modbus faulted sensor value, 9 22 Analog output minimum rate in user units CH B, 8 36 Modbus faulted sensor value, 9 23 Analog output maximum rate in user units CH B, 8 User Variable Log, 21 24 Analog selection, 8 Version number, 3...
  • Page 34 NOTES ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________...

  • Page 36: Pm500 User's Manual Back Cover

    PM500 User’s Manual Back Cover Part Number: 990-005700 REV E Electro-Sensors, Inc. 6111 BLUE CIRCLE DRIVE MINNETONKA, MN 55343–9108 www.electro-sensors.com sales@electro-sensors.com tech@electro-sensors.com Local: 952.930.0100 Toll-Free: 800.328.6170 Fax: 952.930.0130...

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