background image

$8?EPDFÏÏV

 Page 

28 

43 

55.3. Scaling of the Display 

Under consideration of the scaling parameters which have been described previously, the final 

display value of the unit results from  

',63/$< 

>(QFRGHU66,'DWD@ >3RVLWLRQ@ 

 

[

^

`

0)DFWRU

')DFWRU

3)DFWRU

x

Encoder SSI data are always positive only. Where also negative values should be

indicated, this can be achieved by corresponding setting of the parameters

„0-Position“ or „P-Factor“

x

The LED display provides 6 decades. For this reason all parameter settings (including

0-Position) are also limited to a maximum range of 6 decades. SSI encoders with a
resolution of more than 19 bits will however generate SSI data with more than 6

decades. In such a case it can become difficult to set the 0-Position and the other

scaling parameters while the mechanical encoder position is in the overflow zone
(the unit would insistently display "overflow").

To avoid this kind of problem with encoders of more than 19 bits, we recommend to 

use the Bit Blanking Function and evaluate 19 bits only 

x

Where later you intend to use the "Round Loop" function, it is mandatory to blank all

unused bits.

x

Remote Reset/Set commands via keyboard or external input will overwrite the

current value of parameter „0-Position“ by the actual SSI position of the encoder.
Therefore, in the formula above, the content between the brackets { } will become

zero and the unit will display the same value as set to parameter „P-Factor“. This

scaling is also automatically stored to the Flash Prom for full data retention in power--

down state

Summary of Contents for D1-333-121-34 Series

Page 1: ...splay unit with two presets and outputs SSI display unit with serial interface RS232 and RS485 x Clear LED display 15 mm 0 59 size with adjustable brightness x Master or Slave operation with clock rat...

Page 2: ...le to meet effective precautions in order to avoid such consequences x Regarding installation wiring environmental conditions screening of cables and earthing you must follow the general standards of...

Page 3: ...Operational Parameters 12 4 Setup Procedure 13 4 1 Basic Parameters 13 4 2 Operational Parameters 15 4 3 Additional Parameters for the Analogue Output model 18 4 4 Additional Parameters for Preselecti...

Page 4: ...ets and outputs 1 9 1 QSXW QSXW QSXW 5HVHW 1 9 287 20 287 287 3 1 9 9 9 7 7 Display with serial interface 1 9 1 QSXW WUDQVP QSXW QSXW 5HVHW 1 9 287 7 3 1 9 9 9 7 7 1 5 1 Terminal Assignment Displayuni...

Page 5: ...vides an auxiliary output of 24 VDC 120 mA max for supply of sensors and encoders 1 3 Control Inputs A B and C With models input A is used to activate a serial transmission rising edge see 4 5 2 Input...

Page 6: ...current on the voltage output is 2 mA and the load on the current output can vary between 0 and max 300 ohms The response time of the analogue output to changes of the encoder position is appSox 7 NTF...

Page 7: ...Then pull the board to the rear to remove the PCB from the housing 21 3 6ZLWFK Removal of the back plane Location of the DIL switch x Never set DIL switch positions 1 and 2 or DIL switch positions 3...

Page 8: ...state x Setup state a Basic setup b Operational parameter setup x Teach operation 2 1 Normal display state You can only change over to other operation states while the unit is in the n normal display...

Page 9: ...will be highlighted blink This procedure allows setting of all digits to the desired values After the most significant digit has been set the low order digit will blink again and you can do correction...

Page 10: ...ctory default values The factory default settings are shown in the parameter listings in section 6 When you decide to set all parameters to default please be aware that all p previous settings will be...

Page 11: ...ification of the programming procedure The subsequent table shows the general structure of the whole menu only Detailed descriptions of all parameters will follow in section 4 3 1 Overview of Basic Pa...

Page 12: ...Lo_Bit LSB Lo_Bit LSB Lo_Bit LSB Lo_Bit LSB Direction Direction Direction Direction Error Error Error Error Error_Polarity Error_Polarity Error_Polarity Error_Polarity Round Loop Round Loop Round Loo...

Page 13: ...ode of the unit the input characteristics PNP NPN and the desired brightness of the LED display Menu Setting Range Default SSI Mode Setting of Master Mode or Slave Mode For details see section 5 1 SSI...

Page 14: ...P Free Keypad interlock except for Preselection Settings Pres 1 und Pres 2 model Linearization Mode For details please see 6 1 und 6 2 no Linearization is switched OFF 1 qua Linearization settings for...

Page 15: ...ng to the decimal formats shown in the display 000000 00000 0 0 00000 00000 0 Display Display mode of the unit norm regular scaling of the display 359 59 Angular display format 359 59 with use of the...

Page 16: ...case of error 0 0 Error Bit is Low in case of error 1 Error bit is High in case of error 0 1 0 When an error occurs Err b appears on the display The same function can also be used to monitor the Powe...

Page 17: ...hen you set this parameter to e g 1024 the unit will display zero when the encoder position is 1024 Zero Position can be set directly via keypad or by means of an external Reset command 199999 999999...

Page 18: ...y Where another zero definition is desired it can be set by this parameter Setting of e g 5 000 will already produce 5 volts with the output in zero state 9 999 9 999 0 000 Analogue Gain Parameter to...

Page 19: ...y range from 1400 to 2000 into an analogue signal of 2 10 volts 66 LVSOD 9DOXH 9ROWV QDORJXH 2XWSXW A ChAr 0 1 10 V AnAbEG 1400 OFFSEt 2 000 AnAEnd 2000 GAin 8 00 All settings refer to the scaled valu...

Page 20: ...y ON when Display Value Preselection1 timed output pulse Switching Characteristics of Output 2 See above but Preselection2 See above but Preselection2 See above but Preselection2 See above but Presele...

Page 21: ...points will result Preselection Hysteresis GE Greater Equal Display Value Hysteresis effect with Greater Equal Preselection LE Lower Equal Hysteresis Display Value Hysteresis effect with Lower Equal...

Page 22: ...any unit number between 11 and 99 The address must however not contain a 0 because such numbers are reserved for collective addressing of several units 0 99 1 11 Serial Data Format The first characte...

Page 23: ...rate The minimum cycle times for timer transmissions are shown in the table Baud Rate Minimum Cycle Time ms 600 384 1200 192 2400 96 4800 48 9600 24 19200 12 38400 6 Serial Mode PC Operation accordin...

Page 24: ...uest string for readout of the actual display data from a unit with serial address No 11 ASCII Code EOT 1 1 1 ENQ Hex 04 31 31 3A 31 05 Binary 0000 0100 0011 0001 0011 0001 0011 1010 0011 0001 0000 01...

Page 25: ...X LF CR Print2 Sign Data Carriage return X X X X X X CR The mode of activation of serial transmissions can be determined as follows Cyclic timed transmissions Set the Serial Timer to any value 0 010...

Page 26: ...ase both clock terminals CLK are configured as inputs 1 66 QGLFDWRU ZLWK 6ODYH 2SHUDWLRQ ORFN ORFN DWD DWD 66 QFRGHU 5HPRWH 0DVWHU ORFN ORFN DWD DWD 7 7 66 QGLFDWRU 6FUHHQ Set registers Bits Format an...

Page 27: ...excessive Bits must be blanked by corresponding setting of parameters Hi_bit and Lo_bit Basic Settings In general parameter BitS will always be set according to the real resolution of the encoder i e...

Page 28: ...decades In such a case it can become difficult to set the 0 Position and the other scaling parameters while the mechanical encoder position is in the overflow zone the unit would insistently display o...

Page 29: ...ure that the unit displays the pure SSI encoder information at first x Move your encoder now from a lower position towards a higher position according to your own definition of low and high When also...

Page 30: ...DO HQFRGHU VLJQDO LVSOD R R R R QFRGHU LW LUHFWLRQ 3RVLWLRQ Course of display with positive counting direction 3R6 GHJUHHV 2ULJLQDO HQFRGHU VLJQDO LVSOD R R R R QFRGHU LW LUHFWLRQ 3RVLWLRQ Course of d...

Page 31: ...multiple of the number of steps for one loop For setup please proceed first like shown under section 5 4 1 Then set register r LooP to the number of steps corresponding to one revolution of the table...

Page 32: ...e Reset input will be used to define the zero position The following picture explains the details of operation U RR3 3R6 2ULJLQDO HQFRGHU VLJQDO LVSOD R GHJUHHV R 2YHUIORZ QFRGHU LW LUHFWLRQ U RR3 3R6...

Page 33: ...coder connection Cd iO says that clock and data interface are all right and all other displays indicate a problem with the SSI interface circuit 5 6 Error Messages The unit can detect and display the...

Page 34: ...d normally show in the display With parameters P01_y to P16_y you can specify which values you would like to display instead of the corresponding _x values This means e g that the unit will replace th...

Page 35: ...here the opening is picked up by means of an SSI encoder We would like to display the clearance of the gate d but the existing encoder information is proportional to the opening angle G FRV 66 QFRGHU...

Page 36: ...h Now the unit has switched over to the Teach mode To start the teach procedure please press again Cmd within the next 10 seconds The display will then show P01_X x With respect to the consistency req...

Page 37: ...nt valid for the x v values of interpolation points Every i interpolation point must be higher than its preceding point Where this constraint is breached all 6 decimal points will blink automatically...

Page 38: ...8 E PDF V Page 38 43 7 7 Technical Appendix 7 1 Dimensions 96 0 3 780 110 0 4 331 Panel cut out 91 x 44 mm 3 583 x 1 732...

Page 39: ...y UL94 V 0 6 decades LED high efficiency orange 15 mm 0 59 Front IP65 Rear IP20 Signals max 1 5 mm AC power max 2 5 mm PNP max 35 volts max 150 mA Supply voltage AC Supply voltage DC Consumption witho...

Page 40: ...1 0 12 Hi_Bit MSB Hi_bit 1 32 25 2 0 13 Lo_Bit LSB Lo_bit 1 31 1 2 0 14 Direction dir 0 1 0 1 0 15 Error Bit Error 0 32 0 2 0 16 Error Polarity ErrorP 0 1 0 1 0 17 Round Loop r looP 0 999999 0 6 0 18...

Page 41: ...9 999999 6 0 A9 Linear Point 6 P06_H 199999 999999 999999 6 0 B0 P06_Y 199999 999999 999999 6 0 B1 Linear Point 7 P07_H 199999 999999 999999 6 0 B2 P07_Y 199999 999999 999999 6 0 B3 Linear Point 8 P08...

Page 42: ...resel Mode 1 Presel Mode 2 Hysteresis 1 Hysteresis 2 Model Serial Unit Nr Serial Format Serial Baud Rate Display Parameters M Factor Decimal Point D Factor Display P Factor SSI Special SSI High bit MS...

Page 43: ...DF V Page 43 43 L Linearization P1 x P1 y P9 x P9 y P2 x P2 y P10 x P10 y P3 x P3 y P11 x P11 y P4 x P4 y P12 x P12 y P5 x P5 y P13 x P13 y P6 x P6 y P14 x P14 y P7 x P7 y P15 x P15 y P8 x P8 y P16 x...

Reviews: