Simex Simpact SRP-77 User Manual
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Simex Simpact SRP-77 User Manual

Meter with u/i input
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SIMEX
USER MANUAL for
meter with U/I input
family:
SRP-77
type:
5.14
firmware version:
or higher
Read the user's manual carefully before starting to use the unit.
Producer reserves the right to implement changes without prior notice.
V.2.02
13.01.2009

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Summary of Contents for Simex Simpact SRP-77

  • Page 1 ® SIMEX USER MANUAL for meter with U/I input family: SRP-77 type: 5.14 firmware version: or higher Read the user's manual carefully before starting to use the unit. Producer reserves the right to implement changes without prior notice. V.2.02 13.01.2009...

  • Page 2: Table Of Contents

    User manual for meter with U/I input SRP-77 CONTENTS 1. BASIC REQUIREMENTS AND USER SAFETY..................3 2. GENERAL CHARACTERISTICS........................4 3. TECHNICAL DATA............................4 4. DEVICE INSTALLATION..........................6 4.1. UNPACKING............................6 4.2. ASSEMBLY............................6 4.3. CONNECTION METHOD........................8 4.4. MAINTENANCE..........................14 5. FRONT PANEL DESCRIPTION........................14 6. PRINCIPLE OF OPERATION........................15 6.1.

  • Page 3: Basic Requirements And User Safety

    User manual for meter with U/I input SRP-77 Explanation of symbols used in the manual: - This symbol denotes especially important guidelines concerning the installation and operation of the device. Not complying with the guidelines denoted by this symbol may cause an accident, damage or equipment destruction. IF THE DEVICE IS NOT USED ACCORDING TO THE MANUAL THE USER IS RESPONSIBLE FOR POSSIBLE DAMAGES.

  • Page 4: General Characteristics

    User manual for meter with U/I input SRP-77 - Do not use the unit in explosion hazard areas. - Do not use the unit in areas with significant temperature variations, exposed to condensation or icing. - Do not use the unit in areas exposed to direct sunlight. - Make sure that the ambient temperature (e.g.
  • Page 5 User manual for meter with U/I input SRP-77 Display range -999 ÷ 9999, plus decimal point Accepted prolonged input overload: 20% Outputs relay: 0, 1 or 2 NO, 1A/250V AC (cos ϕ = 1) or OC-type: 0, 1 or 2 30mA / 30VDC / 100mW sensor power supply: 24V +5%, -10% / max.

  • Page 6: Device Installation

    User manual for meter with U/I input SRP-77 This is a class A unit. In housing or a similar area it can cause radio frequency interference. In such cases the user can be requested to use appropriate preventive measures. 4. DEVICE INSTALLATION The unit has been designed and manufactured in a way assuring a high level of user safety and resistance to interference occurring in a typical industrial environment.
  • Page 7 User manual for meter with U/I input SRP-77 mounting hole inserting it from the front side of the panel, and then fix it using the brackets (Figure 4.2). The minimum distances between assembly holes’ axes - due to the thermal and mechanical conditions of operation - are 91mm x 91mm (Figure 4.3).

  • Page 8: Connection Method

    User manual for meter with U/I input SRP-77 91 mm Figure 4.3. Minimum distances when assembly of a number of units 4.3. CONNECTION METHOD Caution - Installation should be conducted by qualified personnel . During installation all available safety requirements should be considered. The fitter is responsible for executing the installation according to this manual, local safety and EMC regulations.
  • Page 9 User manual for meter with U/I input SRP-77 - If the unit is equipped with housing, covers and sealing packing, protecting against water intrusion, pay special attention to their correct tightening or clamping. In the case of any doubt consider using additional preventive measures (covers, roofing, seals, etc.).
  • Page 10 User manual for meter with U/I input SRP-77 +24V +5%, -10% RS - 485 Power max = 100mA optional) supply DATA+ (depending on version) DATA- 13 14 18 19 20 6 7 8 9 n.c. n.c. 0/4-20mA (optional) 0/1 - 5V, 0/2 - 10V Figure 4.5.
  • Page 11 User manual for meter with U/I input SRP-77 internally connected 24V DC 16 17 6 7 8 9 10 6 7 8 9 10 Figure 4.7. Connection of 2-wire current converters internally connected 24V DC 16 17 6 7 8 9 10 6 7 8 9 10 Figure 4.8.
  • Page 12 User manual for meter with U/I input SRP-77 13 14 FUSE FUSE Depending on version: 85...230...260V AC/DC or 19...24...50V DC; 16...24...35V AC Figure 4.10. Connection of power supply and relays Contacts of relay outputs are not equipped with spark suppressors. While use the relay outputs for switching of inductive loads (coils, contactors, power relays, electromagnets, motors etc.) it is required to use additional...
  • Page 13 User manual for meter with U/I input SRP-77 Figure 4.11. Examples of suppression circuit connection: a) to relay terminals; b) to the inductive load 16 17 16 17 Logic controller LED 10 mA voltage input 24 V Figure 4.12. Example of OC-type outputs connection...

  • Page 14: Maintenance

    User manual for meter with U/I input SRP-77 4.4. MAINTENANCE The unit does not have any internal replaceable or adjustable components available to the user. Pay attention to the ambient temperature in the room where the unit is operating. Excessively high temperatures cause faster ageing of the internal components and shorten the fault-free time of unit operation.

  • Page 15: Principle Of Operation

    User manual for meter with U/I input SRP-77 6. PRINCIPLE OF OPERATION After turning the power supply on, device ID and software version are showed on the display, next the controller goes to the measurement mode. 6.1. MEASUREMENT MODE In the measure mode, the measurement results, converted over selected characteristic, are displayed on the LED display.

  • Page 16: Detection Of The Peak Values

    User manual for meter with U/I input SRP-77 using [^] and [v] buttons. Input type, range of displaying values, characteristic of conversion, decimal point position and measure filtering ratio, are user configurable parameters. All accessible parameters can be changed by entering the menu (see: DEVICE PROGRAMMING). Use the local keyboard or the remote controller to do it.
  • Page 17 User manual for meter with U/I input SRP-77 If device is not equipped with one or more relay outputs, menus refer to this relays are available, but apply to LED indicators only. In such case LEDs indicates exceeding of particular thresholds. Modes of the control can be changed depend on the values of parameters “SEtP”, “SEt2”, “HYSt”, “modE”, “t on”, “toFF”, “unit”...

  • Page 18: One Threshold Mode

    User manual for meter with U/I input SRP-77 6.3.1. One threshold mode Figure 6.6 presents the principle of relay outputs operation for one threshold mode, and an example values of other parameters. measured “SEtP” parameter displayed value signal (expected signal value) zone A “HYSt”...

  • Page 19: Two Thresholds Mode

    User manual for meter with U/I input SRP-77 (when input signal stay in zone A or zone B) are lower than parameters “t on” If t or t or “toFF”, the relay will not change his state (see points A and C, Figure 6.6 a, d, e). The state of relay output while the input value exceeds the border values (points A, B, C, D) is described by parameter “modE”.

  • Page 20: Device Programming

    User manual for meter with U/I input SRP-77 Figure 6.7 presents the principle of relay outputs operation for two thresholds mode, and an example values of other parameters. In this mode parameter “SEt2” is accessible in common with “SEtP”, this parameter describes a second threshold of the relay output. The parameters “HYSt”, “modE”, “t on”, “toFF”, “unit”...

  • Page 21: Parameters Edition

    User manual for meter with U/I input SRP-77 Functions of the buttons while sub-menu and parameters choice: Selection of sub-menu or parameter for editing. Name of selected item (sub- menu or parameter) is displayed. Operation of [ENTER] button depend on present menu position: ENTER •...

  • Page 22: Switch Parameters ("List" Type)

    User manual for meter with U/I input SRP-77 can be used. If [^] is pressed shortly (and button [v] is still pressed), decreasing slow down for a moment only, if [^] is pressed and held while button [v] is still pressed the decreasing slow down and will be kept on lower speed.

  • Page 23: Rel1" Menu

    User manual for meter with U/I input SRP-77 7.3.1. “rEL1” menu This menu allows to configure the operation mode of relays and LEDs marked „R” (e.g. „R1”). After menu ”rEL1” or ”rEL2” is entered, proper LED is being on (S1 or S2), signalising the relay/threshold related to entered menu.
  • Page 24 User manual for meter with U/I input SRP-77 and “SEt2” thresholds, the lower threshold” means lower one of “SEtP” and “SEt2” thresholds. “out” - two threshold mode, relay is turned ON when the input value is bigger than “bigger threshold + HYSt” and lower than “lower threshold – HYSt”, and turned on when the input signal is contained in the second zone.

  • Page 25: Inpt" Menu

    User manual for meter with U/I input SRP-77 input signal drops, result value of the measure will change slow, causes of turning on or off relay due to thresholds values. The critical situation is slowly detected, so it is impossible to predict the relay state in that situations. •...
  • Page 26 User manual for meter with U/I input SRP-77 “AddP” - this menu allow user to add single point to the user defined characteristic. After selection of this option device waits for „X” and „Y” coordinates of new point. Modification of the coordinates is done accordingly to numerical parameters edition. Coordinate „X”...

  • Page 27: Bri" Parameter

    User manual for meter with U/I input SRP-77 ”Lo r” = 75,0% (3 mA) ”Hi r” = 5,0 % (1 mA) nominal measurement range (4-20mA) [mA] permissible measurement range measurement result is displayed display display regardless on nominal range exceeding message ”-Lo-”...

  • Page 28: Secu" Menu

    User manual for meter with U/I input SRP-77 “modE” - the type of detected changes of the input signal, can be set to values: ”norm” peaks, peak and next drop of the input signal of value equal at least “PEA”, ”inv”...
  • Page 29 User manual for meter with U/I input SRP-77 possible values: ”1.2”, ”2.4”, ”4.8”, ”9.6”, ”19.2”, ”38.4”,”57.6”,”115.2”, which respond to the baud rates of 1200, 2400, 4800, 9600, 19200, 38400, 57600 and 115200 bit/s respectively. ”mbAc” - this parameter sets the access to the configuration registers of the device. Possible values: ”on”...

  • Page 30: Edit" Parameter

    User manual for meter with U/I input SRP-77 7.3.7. ”Edit” paramet er This parameter allows to change the edition mode of numerical parameters: ”dig” - the change to “by digit” mode, ”Slid” - slide change mode. 7.3.8. ”dEFS” parameter This setting allows to restore the factory settings of the device. To get the access to this option special password is required: „5465”, next the device displays acknowledge question „SEt?”.

  • Page 31: Menu Structure

    User manual for meter with U/I input SRP-77 7.4. MENU STRUCTURE Measurement mode Press and hold at least 2 seconds MENU MENU 4-digit user password entering (if it is different from „0000”) 0 _ _ _ ENTER ENTER ENTER Parameter MENU rEL1 SEtP...
  • Page 32 User manual for meter with U/I input SRP-77 See previous page ENTER ENTER Parameter MENU modE HOLd edition ENTER MENU timE Hdis MENU H r1 H r2 ENTER ENTER Parameter MENU SECu Scod edition ENTER MENU A r1 MENU A r2 ENTER ENTER Parameter...

  • Page 33: The Alarm Led

    User manual for meter with U/I input SRP-77 8. THE ALARM LED The ALARM LED (AL) is turned on when input signal is out of the permissible input range. See parameters: “tyPE”, “Lo r” and “Hi r” in paragraph „InPt” menu. 9.

  • Page 34: Linear Characteristic

    User manual for meter with U/I input SRP-77 10.1.1. Linear characteristic The normalized result is converted by fixed coefficients determined by “Lo C” and “Hi C” parameters (when the normalized results is equal 0, then value “Lo C” is displayed, and when the normalized results is equal 1, then value “Hi C”...

  • Page 35: Square Root Characteristic

    User manual for meter with U/I input SRP-77 10.1.3. Square root characteristic The normalized result is rooted and further conversion is done as for linear characteristic. Conversion is made accordingly with the expression:  × "Hi C" −"Lo C"   "Lo C" , where W means the displayed value.

  • Page 36: Examples Of Calculations

    User manual for meter with U/I input SRP-77 Normalized measurement I (for 0-20 mA range) 0,35 5-elements characteristic X (PH) = „70.0.” Y (PH) X = „35.0.” Y (PL) X (PL) = „50.0.” X = „20.0.” Prąd wejściowy [mA] X = „90.0.” X = „100.0.”...
  • Page 37 User manual for meter with U/I input SRP-77 a) I =10 mA and I = 0,375 Accordingly to expression on page 34 for linear characteristic: 0,375 × [1200 -(- 300)] ≅ 562 and next, the “Lo C” value is added to the result , so the displayed value: W ≅...
  • Page 38 User manual for meter with U/I input SRP-77 Example 6: The user defined characteristic Let the input mode = 4-20 mA, and the user selected the 10 segment characteristic. To do this it is necessary to enter X and Y coordinates of 11 points (see Menu ”inPt”). The calculations will be done for three different input currents from example 2, so in calculations some of the segments will be used only.

  • Page 39: The Modbus Protocol Handling

    User manual for meter with U/I input SRP-77 11. THE MODBUS PRO TOCOL HANDLING Transmission parameters: 1 start bit, 8 data bits, 1 or 2 stop bit (2 bits are send, 1 and 2 bits are accepted when receive), no parity control Baud rate: selectable from: 1200 to 115200 bits/second Transmission protocol:...
  • Page 40 User manual for meter with U/I input SRP-77 Register Write Range Register description Device identification code (ID) 22F1h “bAud” parameter in “rS” menu (baud rate); 0 ÷ 7 0 - 1200 baud; 1 - 2400 baud; 2 - 4800 baud; 3 - 9600 baud; 4 - 19200 baud;...
  • Page 41 User manual for meter with U/I input SRP-77 Register Write Range Register description “unit” parameter in “rEL2” menu: 0 ÷ 1 0 - seconds; 1 - minutes 0 ÷ 2 “AL” parameter in “rEL2” menu: 0 - no changes; 1 - on; 2 - off -999 ÷...

  • Page 42: Transmission Errors Description

    User manual for meter with U/I input SRP-77 11.2. TRANSMISSION ERRORS DESCRIPTION If an error occurs while write or read of single register, then the device sends an error code according to Modbus RTU specifications (example message no 1). Error codes: 01h - illegal function (only functions 03h, 06h and 10h are available), 02h - illegal register address 03h - illegal data value...
  • Page 43 User manual for meter with U/I input SRP-77 b) The answer (if an error occur): ADDR FUNC ERROR CRC L,H ERROR - error code = 60h, bottom border of the measurement range is exceeded 2. Read of device ID code ADDR FUNC REG H,L...
  • Page 44 User manual for meter with U/I input SRP-77 5. Read of the registers 1, 2 and 3 in one message (example of reading a number of registries in one frame): ADDR FUNC REG H,L COUNT H,L CRC L,H COUNT L - the count of being read registers (max.16) The answer: ADDR...

  • Page 45: Default And User's Settings List

    User manual for meter with U/I input SRP-77 12. DEFAULT AND USER'S SETTINGS LIST Desc. Parameter Description Default value User's value page Parameters of relay R1 operation (“rEL1” menu) SEtP Relay R1 threshold 20.0 SEt2 Relay R1 second threshold 30.0 HYSt Hysteresis of relay R1 modE...
  • Page 46 User manual for meter with U/I input SRP-77 Desc. Parameter Description Default value User's value page timE Maximum time of peak displaying HdiS The type of displayed value HOLd H r1 Source of relay R1, and LED R1 control rEAL H r2 Source of relay R2, and LED R2 control rEAL...
  • Page 47 User manual for meter with U/I input SRP-77...
  • Page 48 ® SIMEX SIMEX Sp. z o.o. , ul. Wielopole 7 PL - 80-556 Gdańsk, Poland tel. : (+48 58) 762-07-77, fax: (+48 58) 762-07-70 http://www.simex.com.pl, e-mail: info@simex.com.pl...

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