Manual - Amalgamated Instrument Co Pty Ltd
Contents
1. Note if the decimal point is altered the display may need to be recalibrated and alarm etc settings checked 5 17 Digital filter Display Fler Range Gto8 Default Value 2 Displays and sets the digital filter value Digital filtering uses a weighted average method of determining the display value and is used for reducing display value variation due to short term interference The digital filter range is selectable from to B where B none and B most filtering Use or M at the FLEr function to alter the filter level if required Note that the higher the filter setting the longer the display may take to reach its final value when the input is changed similarly the relay operation and any output options will be slowed down when the filter setting is increased To set the digital filter value go to the FLtr function and use the amp or Md 18 of 33 RM4SSIMAN 2 2 0 push buttons to set the required value then press I to accept this selection 5 18 Q button function Display Pout Range AGE Hi La Hi La CEFG or P SEt Default Value MDN 2 button function a only applicable models with front panel GJ buttons The button may be set to operate one of the following selections e NONE D has no operation e H Peak memory This function allows the to be used to view and reset the peak memory The peak memory is the maximum positive display value achieved since the peak memory was last reset To view the peak memory pr2. SS be Bor bce Default Value 55 Allows selection of one of the three main operation mode Select 55 if the input is an 55 signal binary or Gray code from encoder etc The remaining two modes are for use only when the instrument is connected to a RM BC or RM4 BC converter The two remaining modes are bc8 for 8 bit BCD and bc24 for up to 24 bit BCD inputs The BCD input can be either parallel strobed or addressed 5 35 SSI clock frequency Display SS FREE Range Laor H Default Value H Allows settings of to 90kHz or H 600kHz clock frequencies The normal setting is H Use Lo only if communications difficulties are experienced due to long cable runs RM4SSIMAN 2 2 0 25 of 33 5 36 Baud rate for optional serial communications Display bAUd FREE Range 300 5600 268 2483 H800 9600 9 2 or 38 4 Default Value 96800 Set baud rate seen only with serial output option Refer to the separate RM4 Din Rail Meter Optional Output Addendum booklet supplied when optional outputs are fitted Select from 388 500 200 2400 HBD 95600 9 2 or 38 4 baud The baud rate should be set to match the device being communicated with 5 37 Parity for optional serial communications Display Prey Range MONE EVEN or add Default Value MODNE Set parity seen only with serial output option Refer to the separate RM4 Din Rail Meter Optional Output Addendum booklet supplied when optional outputs are fitted Select
3. BCD to SSI converter inputs can be used as a display hold input When set to an terminal 9 can be used as a display hold input i e whilst this input is active the display value will be frozen See dP RPE diagram for further description 6 9 Display hold input polarity from BCD converter Display HGid POL Range on or GFF Default Value GFF For use with the optional BCD converter only When the Pr HOL d function is set to an the gt NPE HOL d function can be used to select an active high input for the display hold H or active low input La RM4SSIMAN 2 2 0 31 of 33 7 Specifications 7 1 Technical specifications Input Clock rate Microprocessor Ambient temperature Humidity Display Power supply Power consumption Output standard Synchronous Serial Interface SSI selectable as binary of Gray code 8 or 24 bit BCD input via model RM4 BC or RM BC converter Selectable as 90kHz or 600kHz HC68HC11F CMOS 10 to 60 C 5 to 95 non condensing LED 5 digit 7 6mm alarm annunciator LEDs AC 240V 110V 32V or 24V 50 60Hz or DC isolated wide range 12 to 48V Note supply type is factory configured AC supply 4 VA max DC supply depends on options fitted consult supplier 2 x relay Form A rated 5A resistive Programmable N O or N C 7 2 Optional outputs Third relay Fourth relay Analog output Serial communications DC supply output Rated 0 5A resistive 30VAC or DC May be confi
4. i i iM GFF D to 6383 i i 2a GFF Sto 048575 i aa 2a GFF Sto 348 56 8 i942 gcc i DFF Sto 50D 5 24 Sign bit Display Sgn Range on or GFF Default Value GFF Displays and sets the sign bit enabling With the 5 9 function set to an the data is interpreted as a twos compliment signed number masked to the number of bits set by the 55 b amp 5 function RM4SSIMAN 2 2 0 21 of 33 See the 55 b amp 5 function above for the effect of the 5 Sf setting on the values displayed for a given number of input bits 5 25 SSI code type Display SS CodE Range b nor STAY Default Value b a The input type can be set to b m for binary or to SF RY for gray code SSI to match the output type from the sensor 5 26 User simple scaling method Display u SEL Range on or GFF Default Value GFF Two point scaling method using a zero or preset operation via a remote input switch or front B button as the first scaling point and a J button operation to scale as second point This method provides a simple scaling method without the need to enter the setup functions and is generally used where scaling is to be changed frequently The user scale function allows the front panel J button to be used to enter a scale value To operate by this method the U amp SEL function must be set to an If this method of scaling is used the FiP amp and SELE functions are not used and the USEF SELE function must be set to GFF The button must
5. in turn supplying the appropriate address The unit address ranges from 0 to 31 DEC but is offset by 32 DEC to avoid clashing with ASCII special function characters such as lt STX gt and lt CR gt Therefore 32 DEC or 20 HEX is address 0 42 DEC or 2A HEX is address 10 Do not use address 0 in A bu5S mode 5 40 Returning to normal measure mode When the calibration has been completed it is advisable to return the instrument to the normal mode where calibration functions are less likely to be tampered with To return to normal mode turn off power to the instrument wait a few seconds and then restore power 5 41 Error Messages e ar this message means that the number being received is too big to display e g 345 cannot be displayed on a 4 digit display e SCALE Errar this message means that an error occurred whilst attempting to scale the display Check that the sensor is connected correctly and that the scaling method was followed correctly RM4SSIMAN 2 2 0 27 of 33 6 BCD Converter Input Functions This chapter covers extra functions seen when the SEk GPEF function is set to be 8 bit or beet 24 bit See Explanation of Functions chapter 5 for a description of the alternative operation mode and for functions common to each mode The functions below are also described in the Explanation of Functions chapter When be or be 24 operation mode is selected the display must receive its SSI input from a
6. model RM BC or RM4 BC converter These instruments convert a BCD input signal to SSI The input can be selected as either parallel strobed or addressed BCD Refer to the instruction manual supplied with the converter for details of electrical connections and required function settings for the electrical input type being used RM4 SSI Twoi versions of BCD to SSI converters Viz E LP LP LP LL E E eee ABCDEFG BCD input me SSI output Parlallel strobed or addressed gt Up to 24 lines _y a e F ai EA ee 5 Up to 1200 metres between display and converter The setup and scaling functions are configured through a push button sequence Refer to the diagram on page 10 for details on accessing setup functions Explanation of functions 6 1 Select input mode from BCD converter Display SEt bed Range PAFL Skrb or Addr Default Value PAFL For use with the optional BCD converter only This function is used to select the input type to be used Select PAF for a multiparallel input select Str b for a strobed input or select Addr for an addressed input type 6 2 Input data polarity from BCD converter Display dA A PDL Range Laor H Default Value toa For use with the optional BCD converter only Select La for active low BCD input signals or H 28 of 33 RM4SSIMAN 2 2 0 for active high BCD input signals 6 3 Strobe polarity from BCD converter Display Skrb POL Range La
7. parity check to either AGRE EUEN or add The parity should be set to match the device being communicated with 5 38 Output mode for optional serial communications Display G Put Range SP Cont POLL Abus or A bu5 Default Value Cant Set serial interface mode seen only with serial output option Refer to the separate RM4 Din Rail Meter Optional Output Addendum booklet supplied when optional outputs are fitted Allows user to select the serial interface operation as follows d SP sends image data from the display without conversion to ASCII Cont sends 8 bit ASCII form of display data at a rate typically 90 of the sample rate POLL controlled by computer or PLC as host Host sends command via RS232 485 and instrument responds as requested Fi is a special communications mode used with Windows compatible optional PC download software Refer to the user manual supplied with this optional software A bu5S Modbus RTU protocol 26 of 33 RM4SSIMAN 2 2 0 5 39 Instrument address for optional serial communications Display Addr Range Gto wi Default Value amp Set unit address for polled PGLL or A tbu5 mode G to 2 4 seen only with serial output option Refer to the separate RM4 Din Rail Meter Optional Output Addendum booklet supplied when optional outputs are fitted Allows several units to operate on the same RS485 interface reporting on different areas etc The host computer or PLC may poll each unit
8. setpoint value To set a high alarm value go to the ArH function and use the A or amp push buttons to set the value required then press to accept this value The high alarm setpoint may be disabled by pressing the and amp push buttons simultaneously When the alarm is disabled the display will indicate GFF If the relay is allocated both a low and high setpoint then the relay will activate when the value displayed moves outside the band set by the low and high setpoints The value at which the relay will reset is controlled by the ArH function Example IfA iH is set to DU then relay 1 will activate when the display value is IBE or higher RM4SSIMAN 2 2 0 13 of 33 Display Value RoW x p RaW 7 x gt minus Relay activates ACHY f at this value Relay or above resets below this value Alarm high operation with hysteresis Time 5 3 Alarm relay hysteresis deadband Display ArH Range D to 9999 Default Value 3 Displays and sets the alarm relay hysteresis limit for the designated relay x Note x will be replaced by the relay number when displayed e g A IH for relay 1 To set a relay hysteresis value go to the RAcHY function and use the amp or M push buttons to set the value required then press I to accept this value The hysteresis value is common to both high and low setpoint values The hysteresis value may be used to pr
9. 20 of 33 RM4SSIMAN 2 2 0 The display value is calculated in the following manner Value sent from encoder x SEL NPE Display value Example A 12 bit SSI encoder will give an output in the range 0 to 4095 if only positive values are used The display is to be scaled to show 0 0 to 359 9 over this 12 bit range With 1 decimal point the RPE value could be set to D95 and the SELE value set to 359 9 to achieve this i e at one quarter output from the encoder i e 1024 the display value is calculated from 1024 x 359 9 Displ lue _ isplay value 1095 i e Display value 90 0 5 23 Number of input bits from encoder Display SS gt eS Range ito 3 Default Value Displays and selects the number of input bits which the display will interpret as incoming data This can be set from 1 to 31 bits For example with an FiPt of f anda SELE of i and 12 bits selected the display will show from to 4G 5 i e the 12 bit binary number range before returning to D Note If the 5 Sf function is set to an then the maximum range displayed in this example is 2048 and 2847 The table which follows gives some examples of the effect of PRP SELE SS b t5 and S SM settings nPE EL SS b ES Sgn Viewable display range i i i GFF D to 095 i i i2 GFF Gto 095 i i Z on 2048 to eo i i i2 an 2047 to doe i Pad i2 GFF Gtoe8 igi Pad i i GFF D to 2047 i i iZ GFF Gto8 ivi
10. Do not be concerned at this stage if the live input display value is not what is required 3 Press then release the I button The display will indicate SEL2 followed by a value Use the J or Z button to change this value to the required display scale value at this input Press the button to accept changes the display will show CAL End and will then move on to the next function 5 33 Calibration offset Display CAL DFSk Range Any display value Default Value n a This function will only be seen and can only be used if the USEF SELE function is set to an The calibration offset is a single point adjustment which can be used to alter the calibration scaling values across the entire measuring range without affecting the calibration slope This method can be used instead of performing a two point calibration when a constant measurement error is found to exist across the entire range To perform a calibration offset press the and amp buttons simultaneously at the CAL DFSk function A live reading from the input will be seen make a note of this reading Press the I button the message SEL E will now be seen followed by the last scale value in memory Use the or button to adjust the scale value to the required display value for that input For example if the live input reading was 5G and the required display value for this input was 40 then adjust the SELE value to WG 5 34 Set display operation Display SEt GPEF Range
11. LY SUPPLY Maximum cable length 123456789 Maximum cable length is normally determined by the device being connected to the RM4 Consult the handbook for the device used for details of maximum cable length Notes Twisted pair shielded cable must be used for clock and data Refer to the SS FREE function for details of clock frequency settings which may be required for long cable lengths and to the section on link settings below 3 3 Relay connections Relays are voltage free rated at 240VAC 5A resistive load Terminals A and B are used for relay 1 terminals C and D are used for relay 2 3 4 Optional outputs Refer to the separate RM4 Din Rail Meter Optional Output Addendum for connection details of optional outputs fitted 6 of 33 RM4SSIMAN 2 2 0 3 5 Configuring the input board There are two user configurable links on the input circuit board these are LK3 and LK4 labeled TERM 1 and TERM 2 These links are provided to reduce reflections in long cable runs and are generally only required in cases where long cable runs are used but for most applications can be left in place If the link settings need to be changed refer to the drawing below for instructions on removal of circuit boards Refer to the separate RM4 DIN Rail Meter Optional Output Addendum booklet supplied if optional outputs are fitted cc Az oe t West ewes Remove the connectors the four front bezel screws and the earth scre
12. Model RM4 SSI Synchronous Serial Interface SSI DIN Rail Mount Display Controller Operation and Instruction Manual AMALGAMATED INSTRUMENT CO PTY LTD ACN 001 589 439 Unit 5 28 Leighton Place Hornsby Telephone 61 2 9476 2244 e mail salesQ aicpl com au NSW 2077 Australia Facsimile 61 2 9476 2902 Internet www aicpl com au Table of Contents 1 Introduction 2 Mechanical installation 3 Electrical installation 4 Function tables summary of setup functions 5 Explanation of functions 6 BCD Converter Input Functions 7 Specifications 8 Guarantee and service 2 of 33 11 28 32 33 RM4SSIMAN 2 2 0 1 Introduction This manual contains information for the installation and operation of the RM4 SSI synchronous serial interface monitor Input to the RM4 can be configured as either binary or Gray code SSI with number of bits selectable from 1 to 31 There are three methods available for scaling the display choose which is most suitable from one of the methods below Scaling Method 1 The display can be scaled by using known data from the encoder and entering the appropriate scaling values at the RPE function see section 5 21 and SEL function see section 5 22 The encoder sends data in the form of numbers which in use will correspond to engineering units e g distance in mm If it is known how the output from the encoder corresponds to distance then the appropriate scaling values can be entered Scaling Method 2 T
13. a 10 of 33 RM4SSIMAN 2 2 0 5 Explanation of functions The RM4 setup and calibration functions are configured through a push button sequence The push buttons located at the front of the instrument are used to alter settings Two basic access modes are available UNE mode simple push button sequence allows access to commonly set up functions such as alarm setpoints CAL mode power up sequence plus push button sequence allows access to all functions including calibration parameters Once EARL or FURL mode has been entered you can step through the functions by pressing and releasing the push button until the required function is reached Changes to functions are made by pressing the or push button in some cases both simultaneously when the required function is reached See the flow chart example on the following page Entering CA Mode Entering Furi Mode ae 1 Remove power from the instrument Hold in the G button and reapply power The display will indicate CAL as part of the wake up messages when the EAL message is seen you can release the button No special power up procedure is required to enter FUNE mode 2 When the wake up 1 When the wake up messages have finished and the display has settled down to its normal reading press then release the B button messages have finished and the display has settled down to its normal reading press then release the B
14. al appli cations The 5 digit LED display provides good visibility even in areas with high ambient light levels A feature of the RM4 SSI is the programmable display brightness function this allows the unit to be operated with low display brightness to reduce the instrument power consumption and to improve readability in darker areas To reduce power consumption in normal use the display can be programmed to automatically dim or blank after a set time RM4SSIMAN 2 2 0 3 of 33 2 Mechanical installation The instrument is designed for DIN rail mounting The instrument clips on to 35mm DIN standard rails EN50022 Cut the DIN rail to length and install where required To install the instrument simply clip onto the rail as shown below To remove the instrument lever the lower arm downwards using a broad bladed screwdriver to pull the clip away from the DIN rail 44mm o 141mm 723456789 i2 ABCDEFG QODDDODDOYA mas 4 of 33 RM4SSIMAN 2 2 0 3 Electrical installation The RM4 Meter is designed for continuous operation and no power switch is fitted to the unit It is recommended that an external switch and fuse be provided to allow the unit to be removed for servicing The terminal blocks allow for wires of up to 2 5mm to be fitted for power supply and relays 1 and 2 or 1 5mm for input connections and optional outputs Connect the wires to the appropriate terminals as indicated below Refer to connection diagrams provided in
15. be used to zero the display with the encoder in its zero position or set the display to a preset value with the encoder at a known position prior to the W SEL operation See P but section 5 18 function The operator then simply moves the encoder to a different know position and then holds the button pressed for approximately 2 seconds The message SEALE will then appear followed by the previous scale value The value can now be adjusted via the or S pushbutton The J button is pressed to accept the change or the button can be pressed to abort the scaling If an error occurs such as trying to give a scaling value to a display reading which is zero then the message SCALE Errar will be seen Example the sensor is moved to its zero position and a ZEF D operation carried out via the P button The sensor is then moved a known distance and the amp SEt operation is carried out via the I button Notes Easy access REES function set to EASY to alarm functions cannot be used if USEL is set to an If REES is set to EASY or CAL when U SEL is set to on then FURE mode entry will operate as the easy access mode and entry via EAL mode will have to be made to access any other functions 22 of 33 RM4SSIMAN 2 2 0 5 27 Display update rate Display d SP FREE Range 2 H B i or 32 Default Value 4 Displays and sets the display update rate in updates per second e g if is selected then the display will update four times
16. button 2 Within 2 seconds of releasing the J button press then release the and amp buttons together The display will now indicate FUE followed by the first function 3 Within 2 seconds of releasing the G button press then release the ZB and 3 buttons together The display will now indicate Fung followed by the first function Note If step 1 above has been completed then the instrument will remain in this CA mode state until power is removed i e there is no need to repeat step 1 when accessing function unless power has been removed RM4SSIMAN 2 2 0 11 of 33 Example Entering FUNE mode to change alarm 1 high function A tH from GFF to aa Press amp release fd Press amp release Press amp release gt FUNE gt gt A iHi gt OFF I gt mn Press amp release Press amp release mr eoten Func End Example Entering CAL mode to change decimal point function df PE from amp to B D Switch off Press amp hold Switch on f ro sean ba instrument gt Hold B untij gt E AL Release Gi Press amp release I rw Press amp release md Press amp release gt gd ha a gt Lge th until E P B until nm Press amp release Press amp release um ogam gaeh O or B until RE Ful E 5d End Easy alarm relay adjustment access facility The display has an easy alarm access facility which allows access to the alarm setpoints simply by pressing the I button at the front of the instrument T
17. ction will only be accessible if the relevant option is fitted Functions in this second table are available only in EARL mode or if RECS is set to ALL Display Function Range Default Your Ref Page record rec Analog output option low Any display amp G 5 11 17 display value Optional value FECT Analog output option high Any display gcc 912 yy display value Optional value rec Second analog output option Any display 5 513717 Che low display value Optional value FECT Second analog output option Any display EDHE 5 14 18 Che high display value Optional value Optional this function will only be accessible if the relevant option is fitted 8 of 33 RM4SSIMAN 2 2 0 drnd Display rounding fto 5000 i 5 15 18 CPE Decimal point G D etc 5 5 16 18 Fler Digital filter G to B 2 5 17 18 Pout button function for RORE H AGHE 5 18 19 instruments with front Lo H Lo button EFD or PSEk ACES Access mode GFF EASY GFF 5 19 19 NONE or ALL SPARE Setpoint access mode A iR i 2 ete Ai 5 20 20 PAPE Display input scaling factor to any i 5 217 20 positive display value SELE Display scaling factor f to any i 5 22 7 20 display value 53 Number of input bits itoi i 9 23 21 b ES son Sign bit an or GFF GFF 5 24 21 53 SSI code type b nor SAY bn b 2o 22 Cod u SEL User simple
18. e go to the Arr amp function and use the amp or amp push buttons to set the value required then press J to accept this value Example If A irt is set to seconds then the resetting of alarm relay 1 will be delayed by 10 seconds 5 6 Alarm relay normally open closed Display Rin a or Rane Range Rin oa or Rane Default Value FArn a Displays and sets the setpoint alarm relay x action to normally open de energised or normally closed energised when no alarm condition is present Since the relay will always open when power is removed a normally closed alarm is often used to provide a power failure alarm indication To set the alarm relay for normally open or closed go to the Ran e or Arn e function and use the QW or S push buttons to set the required operation then press GJ to accept this selection Example If set to A tn a alarm relay 1 will be open circuit when the display is outside alarm condition and will be closed short circuit across terminals when the display is in alarm condition 5 7 Alarm relay setpoint or trailing operation Display FicSP or Act fete Range FAicSP or Act fetc Default Value FAxaSP Relay operation independent setpoint or trailing setpoint this function will not be seen unless extra optional relays are fitted Each alarm relay except relay 1 may be programmed to operate RM4SSIMAN 2 2 0 15 of 33 with an independent setpoint value or may be linked to operate at a fixed difference to another
19. e preset function set the P but function to P SEE amp 5 9 Display brightness Display br Set Range ito i5 Default Value 5 Displays and sets the digital display brightness The display brightness is selectable from to 15 where 4 lowest intensity and 45 highest intensity This function is useful for improving the display readability in dark areas or to reduce the power consumption of the instrument See also the dutt function To set brightness level go to the br 9t function and use the amp or M push buttons to set the value required then press I to accept this value 5 10 Auto display dimming timer Display d oFF SECS Range D to 9999 Default Value amp This function allows a time to be set after which the display brightness set by the or S amp function will automatically be set to the level set at the dut L function The auto dimming feature can be used to reduce power consumption The function can be set to any value between O and 9999 16 of 33 RM4SSIMAN 2 2 0 seconds A setting of disables the auto dimming The display brightness can be restored by pressing any of the instruments front push buttons The display brightness will also be restored whilst one or more alarm relays is activated In normal display mode i e not in AL mode there is a 2 minute delay period after the instrument is switched on during which the automatic display dimming will not operate If any of the front pusbuttons are pressed during th
20. eed must be returned to the manu facturer freight paid and if accepted for free repair will be returned to the customers address in Australia free of charge When returning the product for service or repair a full description of the fault and the mode of operation used when the product failed must be given In any event the manufacturer has no other obligation or liability beyond replacement or repair of this product Modifications may be made to any existing or future models of the unit as it may deem necessary without incurring any obligation to incorporate such modifications in units previously sold or to which this guarantee may relate This document is the property of the instrument manufacturer and may not be reproduced in whole or part without the written consent of the manufacturer This product is designed and manufactured in Australia RM4SSIMAN 2 2 0 33 of 33
21. esignated alarm relay x Note x will be replaced by the relay number when displayed e g A fie for relay 1 Use this low setpoint function if a relay operation is required when the display value becomes equal to or less than the low setpoint value To set a low alarm value go to the Arte function and use the or amp push buttons to set the value required then press I to accept this value The low alarm setpoint may be disabled by pressing the Z and M push buttons simultaneously When the alarm is disabled the display will indicate GFF If the relay is allocated both a low and high setpoint then the relay will activate when the value displayed moves outside the band set by the low and high setpoints The value at which the relay will reset is controlled by the ArH function Example IfA iLa is set to iD then relay 1 will activate when the display value is 10 or less Display Value Relay resets Relay above this activates value Axta at this value plus or below Gy gt a a a a Sam oe es AxHY value Alarm low operation with hysteresis Time 5 2 Alarm relay high setpoint Display Rick Range Any display value or GFF Default Value GFF Displays and sets the high setpoint value for the designated alarm relay x Note x will be replaced by the relay number when displayed e g A iH for relay 1 Use this high setpoint function if a relay operation is required when the display value becomes equal to or more than the low
22. ess the G momentarily the display will show the indicator PH followed by the peak reading This peak reading will be retained on the display for approximately 20 seconds before returning to live display readings alternatively the display can be forced to return to live measurement by pressing the I To reset the peak memory hold the GQ pressed for 3 seconds or remove power to the display e La Valley memory Operates in the same manner as the H function above but operates on the lowest value in memory The indicator P L a will be seen prior to the valley memory value e H La Peak valley memory Operates in the same manner as the H and Lo memories but allows toggling between high and low values i e press once momentarily to view peak high and again momentarily to view peak low e 2EFG display zero Either the U amp SE0L or USEF SELE function must be set to an if the ZEF operation is required When the ZEF D operation is used the display will show the message EF O and the display value will fall to zero All zero operations can be reset i e cleared via the EL 2 EFG function if required Hold the GJ button pressed for 2 3 seconds to activate the zero operation e P SEe preset value Either the USL or USEF SELE function must be set to an if the P SEt operation is required The J button can be used to force the display to the preset value this preset value is set at the P SE amp function Any changes in the output
23. event too frequent operation of the relay when the measured value is rising and falling around setpoint value e g if A IHY is set to zero the alarm will activate when the display value reaches the alarm setpoint for high alarm and will reset when the display value falls below the setpoint this can result in repeated on off switching of the relay at around the setpoint value The hysteresis setting operates as follows In the high alarm mode once the alarm is activated the input must fall below the setpoint value minus the hysteresis value to reset the alarm e g if AGH is to 5G G and A H4 is set to 3 8 then the setpoint output relay will activate once the display value goes to 5 amp 8 or above and will reset when the display value goes below 71 i e at 46 9 or below In the low alarm mode once the alarm is activated the input must rise above the setpoint value plus the hysteresis value to reset the alarm e g if A Lo is to 2G and A IHY is set to 4 then the alarm output relay will activate when the display value falls to 28 8 or below and will reset when the display value goes above 38 8 i e at 3G or above The hysteresis units are expressed in displayed engineering units Example If A fH is set to DO and A EHY is set to iD then relay 1 will activate when the display value is B0 or higher and will reset at a display value of 89 or lower 5 4 Alarm relay trip time Display Artt Range D to 9999 Default Value amp Disp
24. from the sensor will then add or subtract from the displayed preset value Hold the button pressed for 2 3 seconds to activate the preset operation 5 19 Access mode Display ACES Range OFF ERSY AGNE or ALL Default Value GFF Access mode the access mode function ACES has four possible settings namely GFF ERSY MORNE and ALL If set to GFF the mode function has no effect on alarm relay operation If set to ERSY the easy alarm access mode will be activated Refer to Easy alarm relay adjustment access facility page 12 If set to MORNE there will be no access to any functions via FURIE mode RM4SSIMAN 2 2 0 19 of 33 entry via AL mode must be made to gain access to alarm and calibration functions If set to ALL then access to all functions including calibration functions can be gained via FURIE mode 5 20 Setpoint access mode Display SPRE Range ALR i 2 etc Default Value Fi Setpoint access sets the access via FUNE mode and easy alarm access mode to the alarm relay setpoints Two relays are fitted as standard two more are optionally available The following choices are available A i Allows setpoint access to alarm relay 1 only A i Allows setpoint access to alarm relays 1 and 2 only A 1 3 Allows setpoint access to alarm relays 1 2 and 3 Fii 4 Allows setpoint access to alarm relays 1 2 3 and 4 The remote input function F RP must be set to SP RE for this function to operate No
25. gured as form A or form C if the third relay is the only option fitted Rated 0 5A resistive 30VAC or DC form A Isolated 4 to 20mA 0 to 1V or 0 to 10V link selectable Single or dual 12 bit or single 16 bit versions available 4 20mA will drive into resistive loads of up to 8009 Isolated RS232 RS485 or RS422 8 bit ASCII or Modbus RTU Isolated and regulated 12VDC 50mA max or 24VDC 25mA max Some combinations of optional outputs are available e g analog output plus extra relay Consult supplier for available combinations 7 3 Physical characteristics Case size Connections Weight 32 of 33 44mm w x 91mm h x 141mm d Plug in screw terminals max 2 5mm wire for power and relays max 1 5mm wire for load cell and options 470 gms basic model 500 gms with option card RM4SSIMAN 2 2 0 8 Guarantee and service The product supplied with this manual is guaranteed against faulty workmanship for a period of two years from the date of dispatch Our obligation assumed under this guarantee is limited to the replacement of parts which by our examination are proved to be defective and have not been misused carelessly handled de faced or damaged due to incorrect installation This guarantee is VOID where the unit has been opened tampered with or if repairs have been made or attempted by anyone except an authorised representative of the manufacturing company Products for attention under guarantee unless otherwise agr
26. he first setpoint will then appear and changes to this setpoint may be made to this setpoint via the ZY or M buttons Press the 8 button to accept any changes or to move on to the next setpoint Note this easy access also functions in the same manner for the PI control setpoint relay and or analog PI output if PI control is available The instrument must be set in the manner described below to allow the easy access facility to work 1 The F 2 RP function must be set to SPRE or the ATES function must be set to EASY 2 At least one alarm must have a setpoint nothing will happen if all the alarm setpoints are set to GFF 3 The SPARE function must be set to allow access to the relays required e g if set to A f 2 then the easy access will work only with alarm relays 1 and 2 even if more relays are fitted 4 The instrument must be in normal measure mode i e if the instrument is powered up so that it is in EAL mode then the easy access will not function If in doubt remove power from the instrument wait for a few seconds then apply power again 5 If the easy access facility is used then the only way to view or alter any other function settings is to power up via EAL mode ie there is no entry to FURIE mode functions unless the instrument is powered up in EAL mode 12 of 33 RM4SSIMAN 2 2 0 5 1 Alarm relay low setpoint Display Arla Range Any display value or GFF Default Value GFF Displays and sets the low setpoint value for the d
27. he second method requires the encoder to be placed in its zero position and the display zeroed The encoder is then moved to a known position e g a known distance in mm and the value for this known position entered See W SEL function section 5 26 and Pout section 5 18 Scaling Method 3 By entering the values required at two known points see USEF SELE function 5 30 This method also allows the use of a calibration offset Two standard inbuilt relays provide alarm control functions Various combinations of one or two optional extra relays single or dual analog 4 20mA 0 1V or 0 10V retransmission or serial RS232 RS485 or RS422 communications and an isolated 12 or 24VDC isolated transmitter supply may also be provided as an option Unless otherwise specified at the time of order your RM4 has been factory set to a standard configuration Like all other RM4 series instruments the configuration and calibration is easily changed by the user Initial changes may require dismantling the instrument to alter PCB links other changes are made by push button functions Full electrical isolation between power supply input voltage or current and retransmission output is provided by the RM4 thereby eliminating grounding and common voltage problems This isolation feature makes the RM4 ideal for interfacing to computers PLCs and other data acquisition devices The RM4 series of DIN Rail Process Modules are designed for high reliability in industri
28. he two remaining modes are bc8 for 8 bit BCD and bc24 for up to 24 bit BCD inputs The BCD input can be either parallel strobed or addressed 6 7 Decimal point input from BCD converter Display dP APE Range on or GFF Default Value GFF For use with optional 24 bit BCD converter inputs only must be set to GFF if a be B converter is used This function can be set to an or GFF When set to GFF none of the BCD to SSI converter inputs can be used as decimal point inputs When set to on terminals 10 11 and 12 can be used to select a decimal point position on the display See diagram below for further description Decimal point and display hold inputs Note for use with be 24 converters only see dP NPE and MPt HOL d functions oy a aa a Bh a Bnl nl tototo dp4 dps dp2 dp1 Voltage free contact Connector or signal voltage inputs terminal number Display hold Decimal point inputs GND terminal 17 18 or 27 Decimal point selection table No decimal dp1 on dp2 on dp3 on dp4 on points Inactive Inactive Active Inactive Inactive Inactive Active Active Inactive Inactive Inactive Inactive Inactive Active 30 of 33 RM4SSIMAN 2 2 0 6 8 Display hold from BCD converter Display PRP HDL Range on or GFF Default Value GFF For use with optional 24 bit BCD converter inputs only must be set to GFF if a be B converter is used This function can be set to an or GFF When set to GFF none of the
29. is period this 2 minute delay will be canceled 5 11 Analog output option low value Display FEC Range Any display value Default Value B Seen only when analog retransmission option fitted Refer to the separate RM4 Din Rail Meter Optional Output Addendum booklet supplied when this option is fitted for wiring details and link settings Displays and sets the analog retransmission 4 20mA 0 1V or 0 10V link selectable output low value 4mA or OV in displayed engineering units To set the analog output low value go to the FEE function and use the amp or amp push buttons to set the required value then press G to accept this selection Example lf it is required to retransmit 4mA when the display indicates amp then select amp in this function using the or amp button 5 12 Analog output option high value Display Range Any display value Default Value BDD Seen only when analog retransmission option fitted Refer to the separate RM4 Din Rail Meter Optional Output Addendum booklet supplied when this option is fitted for wiring details and link settings Displays and sets the analog retransmission 4 20mA 0 1V or 0 10V link selectable output high display value 20mA 1V or 10V in displayed engineering units To set the analog output high value go to the FEET function and use the amp or M push buttons to set the required value then press to accept this selection Example If it is required to retran
30. lays and sets the alarm trip time in seconds The trip time is common for both alarm high and 14 of 33 RM4SSIMAN 2 2 0 low setpoint values The trip time provides a time delay before the alarm relay will activate when an alarm condition is present The alarm condition must be present continuously for the whole trip time period before the alarm will activate If the input moves out of alarm condition during this period the timer will reset and the full time delay will be restored This trip time delay is useful for preventing an alarm trip due to short non critical deviations from setpoint The trip time is selectable over GB to F494 seconds To set a trip time value go to the Axte amp function and use the B or M push buttons to set the value required then press I to accept this value Example If A ftt is set to S seconds then the display must indicate an alarm value for a full 5 seconds before relay 1 will activate 5 5 Alarm relay reset time Display Arre Range D to 9999 Default Value amp Displays and sets the alarm reset delay time in seconds The reset time is common for both alarm high and low setpoint values With the alarm condition is removed the alarm relay will stay in its alarm condition for the time selected as the reset time If the input moves back into alarm condition during this period the timer will reset and the full time delay will be restored The reset time is selectable over GB to F494 seconds To set a reset time valu
31. or H Default Value ta For use with the optional BCD converter only Select Lo for active low strobe input or H for active high strobe input 6 4 Code for non BCD character from BCD converter Display bed CodE Range StoS Default Value amp For use with the optional BCD converter only Select the format for non BCD inputs i e A to F or 1010 to 1111 0 A to F 1010 to 1111 displays blanks 1 A to F 1010 to 1111 displays A b E d E F 2 A to F 1010 to 1111 displays E 4 9 a blank 3 A to F 1010 to 1111 H a blank 4 A to F 1010 to 1111 displays 9 E F 5 A to F 1010 to 1111 displays E H L P blank displays A 6 5 Number of digits to display from BCD converter Display bed d St Range ito S Default Value 5 For use with the optional BCD converter only Displays and sets the number of digits to display Settings available range from 1 to the number of display digits available e g 1 to 5 on a 5 digit display Note that an 8 bit converter using parallel input will only allow a 2 digit display 6 6 Set display operation Display SEt GPEF Range SS bc Bor bee Default Value 55S Allows selection of one of the three main operation mode Select 55 if the input is an SS signal binary or Gray code from encoder etc The remaining two modes are for use only when the RM4SSIMAN 2 2 0 29 of 33 instrument is connected to a RM BC or RM4 BC converter T
32. per second The lowest satisfactory update rate should be chosen If too high a rate is selected then the rapid update may cause an apparent flickering of the display The update rate affects the display only and does not affect the sampling rate alarm update etc 5 28 Clear zero Display Cir ZED Range n a Default Value n a Allows any zero operations performed via the remote input or GQ button to be cleared Pressing the amp and buttons simultaneously will clear the zero offset the message EL re will be seen confirming the zero clearing operation is completed 5 29 Clear user scale operation Display Cir USEL Range n a Default Value n a The display scaling via the f SEL function operation can be cleared at this function Pressing the B and M buttons simultaneously will clear the user scaling and will cause the scaling to revert to a 1 1 equivalent i e equivalent to FiP amp function set to f and SELE function set to Note that clearing the user scale will not clear any zero or preset operations the ELF amp FG function must be used to clear any zero offsets If necessary the preset value can be changed at the P SEt function and the button or remote input used to activate the preset operation to return the display to the required scaling 5 30 Two point live input scaling Display USEF SOLE Range on or GFF Default Value GFF Allows selection of two point live input calibration to be used when this function is
33. relay setpoint known as trailing operation The operation is as follows Alarm 1 FR is always independent Alarm 2 AZ may be independent or may be linked to Alarm 1 Alarm 3 R3 may be independent or may be linked to Alarm 1 or Alarm 2 Alarm 4 A 4 may be independent or may be linked to Alarm 1 Alarm 2 or Alarm 3 The operation of each alarm is selectable by selecting for example Alarm 4 R4 5P Alarm 4 normal setpoint or AM k Alarm 4 trailing Alarm 1 or AM k Z Alarm 4 trailing Alarm 2 or AM 3 Alarm 4 trailing Alarm 3 For trailing set points the setpoint value is entered as the difference from the setpoint being trailed If the trailing setpoint is to operate ahead of the prime setpoint then the value is entered as a positive number and if operating behind the prime setpoint then the value is entered as a negative number then Alarm 1 will activate at BOD and alarm 2 will activate at 5G i e 1000 50 If Alarm 2 had been set at 50 then alarm 2 would activate at 455 i e 1000 50 Example With Alarm 2 set to trail alarm 1 if A fH is set to DDD and AZH is set to 5G 5 8 Preset value Display P SEt Range Any display value Default Value amp Displays and sets the preset value The preset value can be used via the J button to force the display to go to the preset value A change in the input value will then cause the display to rise or fall from the preset value To use the button to operate th
34. scaling method on or GFF GFF 5 26 22 d SP Display update rate i2 4 8 5 4 5 27 23 FREE or 32 Cir Clear zero n a n a 5 28 23 Ero Cir Clear user scale operation n a n a 5 29 23 u SEL USEF Two point live input scaling on or GFF GFF 5 30 23 SELE CAL i First live input calibration Any display n a 5 31 24 scaling point value CALZ First live input calibration Any display n a 5 32 24 scaling point value CAL Calibration offset Any display n a 3 33 25 GFSt value SEt Set display operation SS bc B or 53 6 6 29 oper bee 53 SSI clock frequency Loor H H 5 35 7 25 FREE bAU Baud rate for serial 0D 600 S600 5 36 26 FREE communications Optional i266 HDD 4806 968 S 2 or 38 4 Optional this function will only be accessible if the relevant option is fitted RM4SSIMAN 2 2 0 9 of 33 Pet Parity for serial communications RONE EUER MONE 5 37 26 Optional or add G Put Output for serial di SP Cant Cant 5 38 26 communications Optional OLL Abus or A buS Addr Instrument address for serial Gtozi 5 5 39 27 communications Optional Optional this function will only be accessible if the relevant option is fitted 4 1 Relay table Record your relay settings in the table below Note relays 3 and 4 are optionally fitted Display Relay 1 Relay 2 Relay 3 Relay 4 Arlo Ack AcHY Arte Arre Arn a or Arne RAcSP or Are fetc n
35. set to an This method allows scaling without the need to calculate the required scaling from the SSI en coder sensor data The CAL tand CAL Z functions described below can then be used to scale the display If required the EAL GFSe function can be used to make an adjustment to add or subtract an offset value across the display range The CAL CALZ and CAL GFSE functions will only be seen when RM4SSIMAN 2 2 0 23 of 33 the USEF SELE function is set to an Note the U S function must be set to GFF when the USEF SELE function is used 5 31 First calibration scaling point Display CAL i Range Any display value Default Value n a This method of display scaling is used only when the USEF SELE function is set to an CAL and CAL Z are used together to scale the instruments display values for both must be set when using this scaling method The CAL function sets the first calibration point for live input calibration When using this method a live signal input must be present at the input terminals Note TAL 4 and CAL Z can be set independently i e it is not necessary to perform a KALZ operation directly after a TAL 4 Note that some display rounding may occur if the scaling values entered are larger than the normal binary or Gray code values The procedure for entering the first scaling point is 1 Ensure that an input signal of a know value from an encoder etc is present at the input terminals this will normally be at
36. smit 20mA when the display indicates 5G then select S in this function using the or M button 5 13 Second analog output option low value Display Feo Che Range Any display value Default Value amp See FEE function 5 11 for description of operation RM4SSIMAN 2 2 0 17 of 33 5 14 Second analog output option high value Display Feo Che Range Any display value Default Value DDD See FEET function 5 12 for description of operation 5 15 Display rounding Display drnd Range ito SEDD Default Value Displays and sets the display rounding value This value may be set to 1 5000 displayed units Display rounding is useful for reducing the instrument resolution without loss of accuracy in ap plications where it is undesirable to display to a fine tolerance To set the display rounding value go to the dend function and use the or amp push buttons to set the required value then press G to accept this selection Example If set to the display values will change in multiples of 10 only i e display moves from 48 to 2G to 36 etc 5 16 Decimal point Display dOPE Range D D i etc Default Value amp Displays and sets the decimal point By pressing the amp or amp pushbutton at the d amp Pt function the decimal point position may be set The display will indicate as follows B no decimal point G 1 decimal place G G2 2 decimal places G G43 3 decimal places or G 8G34 4 decimal places
37. te Only the setpoints which have been given a value will be accessible e g if A iH is set to GFF then there will be no access to the A iH function when SPAT is used 5 21 Display input scaling factor Display Pe Range to any positive display value Default Value The RPE factor and the SELE factor are used to scale the display to read in engineering units e g metres The FiP amp value must always be a whole number see SELE below for formula used 5 22 Display scaling factor Display EL Range to any display value Default Value The SELE value is used together with the APE value to calculate the value to be displayed from the SSI input value transmitted from the encoder These two functions are used to calculate the display value and are used only when the alternative scaling methods of U SEL and USEF SEL are both set to GFF The scale factor can be set to any display value and the decimal point value seen at this function will be set by the d Pt amp function If the relevant details of the encoder and display requirements are known the easiest way to find the Pe and SELE values is to use the maximum output value from the encoder as the APE value and the display value for this maximum output value as the SELE value For example a 16 bit encoder has an output of 0 to 65535 If you wish this to display 0 to 1500 over the full range of the encoder then set the RPE value to 65535 and the SELE value to 1500
38. the low end of the range 2 At the CAL function press ZB and amp simultaneously then release them The display will indicate the live input value Do not be concerned at this stage if the live input display value is not what is required 3 Press then release the GJ button The display will indicate SEL followed by a value Use the or amp button to change this value to the required display scale value at this input Press the I button to accept changes the display will show EAL End and will then move on to the next function 5 32 First calibration scaling point Display CALZ Range Any display value Default Value n a This method of display scaling is used only when the USEF SELE function is set to an TAL and CALZ are used together to scale the instruments display values for both must be set when using this scaling method The second point scaling is performed in exactly the same manner as CAL except that SEL Z will be seen instead of SEL 4 It is essential that the live input is different in value to the EAL input The procedure for entering the second scaling point is 1 Ensure that an input signal of a know value different to the input used at TRL 1 from an encoder etc is present at the input terminals this will normally be at the high end of the range 24 of 33 RM4SSIMAN 2 2 0 2 At the CARL function press B and M simultaneously then release them The display will indicate the live input value
39. this manual to confirm proper selection of voltage polarity and input type before applying power to the instrument When power is applied the instrument will cycle through a display sequence indicating the software version and other status information this indicates that the instrument is functioning Acknowledgement of correct operation may be obtained by applying an appropriate input to the instrument and observing the resultant reading Note that the power supply type is factory configured Check power supply type before connecting Relay outputs are voltage free contacts Electrical connections and data label 240VAC supply example SSI input p Data B or Data A or Optional Clock B or outputs Clock A or see table GND 7 aoaaa 123456789 A RELAY 1 COM B RELAY 1 N 0 C RELAY 2 COM D RELAY 2 N 0 E MAINS EARTH DATA B F 240 VAC NEUTRAL DATA A l 2 es G 240 VAC ACTIVE CLOCK B n AMALGAMATED INSTRUMENT CO GROUND SERIAL Wo AXYK 0R Ai GD EF Active DC Relay 1 y Neutral DC Relay 2 Earth RM4SSIMAN 2 2 0 5 of 33 3 1 Power supply connections AC supply connections use terminal G Active terminal F Neutral and terminal E Case earth DC supply connections 12 to 48VDC use terminal G DC terminal F DC and terminal E Case earth 3 2 SSI input connections Data B or Glock B or SSI DEVICE Clock A or encoder etc Twin twisted pair overall screened shielded cable SUPP
40. w at the side of the case Hold the front bezel and slide out the circuit boards RM4SSIMAN 2 2 0 7 of 33 4 Function tables summary of setup functions Note the order in which the functions appear on the display may not be exactly as shown below The availability and order of functions is determined by choice of function settings and options fitted Functions in this first table are available in F arr LED or CAL mode Display Function Range Default Your Ref Page record Arla Low setpoint value for Any display GFF See 5 1 13 designated alarm relay x value or GFF A Fick High setpoint value for Any display GFF See 5 22 13 designated alarm relay x value or GFF AT AcHY Hysteresis value for the Gto 9999 ig See 5 3 14 designated alarm relay zx 4 1 Arte Trip time delay for the D to 9999 BH See 5 4 14 designated alarm relay zx 4 1 Arre Reset time delay for the G to 9999 a See 5 5 15 designated alarm relay zx 4 1 Rina Alarm relay x action to Ran e or Rina See 5 6 15 or normally open de energised or Rrn c 4 1 Arne normally closed energised Fic SP Relay operation independent RAcSP or Fic SP See mt 1S or setpoint or trailing setpoint Arke fete 4 1 Axt Optional etc P SEk Preset value Any display 5 5 8 16 value br Get Display brightness level ito is 5 9 16 d aFF Auto display dimming timer G to 9999 5 5 10 16 SECS Optional this fun
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