AMALGAMATED INSTRUMENT PM4-SSI Operation And Instruction Manual Download Page 23

5.25

Remote input function

Display:

R.INP

Range:

NONE, P.HLd, d.HLd, Hi, Lo , HiLo, ZERO, SP.Ac, No.Ac, CAL.S ,

P.SEt

or

duLL

Default Value:

NONE

Remote input function - When these remote input terminals are short circuited, via a switch, relay,
keyswitch etc. the instrument will perform the selected remote input function. A message will
flash to indicate which function has been selected when the remote input pins are short circuited.
The remote input functions are as follows:

NONE

- no remote function required i.e. activating the remote input has no effect.

P.HLd

- peak hold. The display will show the peak value (highest positive value) only whilst the

remote input terminals are short circuited i.e. the display value can rise but not fall whilst the
input terminals are short circuited. The message

P.HLd

will appear briefly every 8 seconds

whilst the input terminals are short circuited to indicate that the peak hold function is active.

d.HLd

- display hold. The display value will be held whilst the remote input terminals are short

circuited. The message

d.HLd

will appear briefly every 8 seconds whilst the input terminals

are short circuited to indicate that the display hold function is active.

Hi

- peak memory. The peak value stored in memory will be displayed if the remote input

terminals are short circuited, if the short circuit is momentary then the display will return
to normal measurement after 20 seconds. If the short circuit is held for 2 to 3 seconds or the
power is removed from the instrument then the memory will be reset.

Lo

- valley memory. The minimum value stored in memory will be displayed. Otherwise operates

in the same manner as the

Hi

function described above.

HiLo

- toggle between

Hi

and

Lo

displays. This function allows the remote input to be used to

toggle between peak and valley memory displays. The first operation of the remote input will
cause the peak memory value to be displayed, the next operation will give a valley memory
display.

P Hi

or

P Lo

will flash before each display to give an indication of display type.

ZERO

- display zero. Either the

U.SCL

or

USER SCLE

function must be set to

on

if the

ZERO

operation is required. When the

ZERO

operation is used the display will show the message

ZERO

and the display value will fall to zero. All zero operations can be reset i.e. cleared via

the

CLr ZERO

function if required.

SP.Ac

- setpoint access only. This blocks access to any functions except the alarm setpoint

functions unless the remote input pins are short circuited or entry is made via

CAL

mode or

if the

ACCS

function is set to

ALL

.

No.Ac

- no access. This blocks access to all functions unless the remote input pins are short

circuited or entry is made via

CAL

mode or if the

ACCS

function is set to

ALL

.

CAL.S

- calibration select. The remote input can be used to select between scaling values. Two

sets of scaling values can be entered in the instrument, one set set of scaling values can be
entered with the remote input open circuit and another set with the remote input short circuit
to ground. A switch connected to the remote input can then be used to switch between one
set and the other. This feature could be used to allow switching between display units each
scaled differently e.g. metres and feet. Alternatively it could be used to allow the one display
to switch between 2 different encoders with one being setup and scaled with the remote input
switch open and the other with the switch closed.

PM4SSIMAN-2.2-0

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Summary of Contents for PM4-SSI

Page 1: ...t Display Controller Operation and Instruction Manual AMALGAMATED INSTRUMENT CO ABN 80 619 963 692 Unit 5 28 Leighton Place Hornsby Telephone 61 2 9476 2244 e mail sales aicpl com au NSW 2077 Australi...

Page 2: ...Mechanical Installation 4 3 Electrical installation 5 4 Function tables summary of setup functions 8 5 Explanation of functions 12 6 BCD Converter Input Functions 33 7 Specifications 35 8 Guarantee an...

Page 3: ...BCD input is converted to an SSI output which is then inter preted by the PM4 SSI The SEt OPER setup function is used to select the input type required If the input from a general SSI output device t...

Page 4: ...option for panel mount instruments Prepare a panel cut out of 45mm x 92mm 1 mm 0 mm see diagram below Insert the instrument into the cut out from the front of the panel From the rear of the instrumen...

Page 5: ...chapter 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...

Page 6: ...d by the device being connected to the PM4 Consult the handbook for the SSI device used for details of maximum cable length Notes Twisted pair cable must be used for clock and data refer to the SSI RA...

Page 7: ...ping screws from the back cover then remove the back cover by pulling it away from the instrument 3 Remove the earth screw which passes through the underside of the case then slide out the board or bo...

Page 8: ...e delay for the designated alarm relay x 0 to 9999 0 See 4 1 5 4 15 Axrt Reset time delay for the designated alarm relay x 0 to 9999 0 See 4 1 5 5 16 Axn o or Axn c Alarm relay x action to normally op...

Page 9: ...n low display value Optional Any display value 0 5 19 21 REC Analog output option high display value Optional Any display value 1000 5 20 21 drnd Display rounding 1 to 5000 1 5 21 21 dCPt Decimal poin...

Page 10: ...input calibration scaling point Any display value n a 5 39 29 CAL OFSt Calibration offset Any display value n a 5 40 29 SEt OPER Set display operation SSI bc8 or bc24 SSI 5 41 30 SSI RAtE SSI clock fr...

Page 11: ...Record your relay settings in the table below Display Relay 1 Relay 2 Relay 3 Relay 4 Relay 5 Relay 6 Relay 7 AxLo AxHi AxHY Axtt Axrt Axn o or Axn c AxSP or Axt1 etc n a Ax rt Ax tL or Ax PS PM4SSIMA...

Page 12: ...move power from the instrument Hold in the button and reapply power The display will briefly indicate as part of the wake up messages when the message is seen you can release the button Move to step 2...

Page 13: ...e 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...

Page 14: ...s Display Value Time A Lo x A HY x value A Lo A HY x x plus Relay activates at this value or below Relay resets above this value Alarm low operation with hysteresis 5 2 Alarm relay high setpoint Displ...

Page 15: ...t 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 res...

Page 16: ...ull time delay will be restored The reset time is selectable over 0 to 9999 seconds To set a reset time value go to the Axrt function and use the or v push buttons to set the value required then press...

Page 17: ...Display P SEt Range Any display value Default Value 0 Displays and sets the preset value this function will not be seen unless either the R INP or P SEt function is set to P SEt The preset value can...

Page 18: ...ay scaled differently to the 7 segment display For example the bargraph scale may be indicating percentage fill of a tank whilst the 7 segment display is indicating actual process units To set bargrap...

Page 19: ...g bAr_ 0 and bAr 100 will give a bargraph with all the bottom half segments lit at a 7 segment display reading of 100 and all the top segments lit with a 7 segment display reading of 100 r dot modulu...

Page 20: ...ft most digits will be output if set to 0 then the four right most digits will be output 5 17 Digital output option low value Display diG_ Range Any display value Default Value 0 Seen only with the 16...

Page 21: ...ied 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 display...

Page 22: ...d 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 wh...

Page 23: ...manner as the Hi function described above HiLo toggle between Hi and Lo displays This function allows the remote input to be used to toggle between peak and valley memory displays The first operation...

Page 24: ...access to any functions via FUNC mode entry via CAL 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...

Page 25: ...e SCLE value to 1500 The display value is calculated in the following manner Display value Value sent from encoder SCLE INPt Example A 12 bit SSI encoder will give an output in the range 0 to 4095 if...

Page 26: ...the SIGN setting on the values displayed for a given number of input bits 5 32 SSI code type Display SSI CodE Range bin or GRAY Default Value bin The input type can be set to bin for binary or to GRAY...

Page 27: ...its zero position and a ZERO operation carried out via the remote input or P button The sensor is then moved a known distance and the U SCL operation is carried out via the F button Notes Easy access...

Page 28: ...he display If required the CAL OFSt function can be used to make an adjustment to add or subtract an offset value across the display range The CAL1 CAL2 and CAL OFSt functions will only be seen when t...

Page 29: ...mally be at the high end of the range 2 At the CAL2 function press and v simultaneously then release them The display will indicate the live input value Do not be concerned at this stage if the live i...

Page 30: ...encies The normal setting is Hi Use Lo only if communications difficulties are experienced due to long cable runs 5 43 Baud rate for optional serial communications Display bAUd RAtE Range 300 600 1200...

Page 31: ...it address for polled POLL or M buS mode 0 to 31 seen only with serial output option Refer to the separate PM4 Panel Meter Optional Output Addendum booklet supplied when optional outputs are fitted Al...

Page 32: ...Error 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 32 of 36 PM4SSIMA...

Page 33: ...gured through a push button sequence Refer to the diagram on page 10 for details on accessing setup functions Explanation of functions SEt bcd select input mode This function is used to select the inp...

Page 34: ...llow a 2 digit display SEt OPER set operation mode Allows selection of one of the three main operation mode Select SSI if the input is an SSI signal binary or Gray code from encoder etc The remaining...

Page 35: ...LED display and no optional outputs Typically 50mA at 12VDC and 35mA at 24VDC for PM4 with LCD display and no optional outputs actual current drawn depends on display type and options fitted Output st...

Page 36: ...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...

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