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15

UK

9.3  User settings (optional) 
9.3.1  Setting of a time delay for the switching signals

• [dS1] / [dS2] = time delay for SP1 / SP2 / FH1 / FH2�If the system 

pressure exceeds SPx or if the system pressure enters the acceptable 

range (window), the output changes the switching status when the time 

dSx has elapsed�

• [dr1] / [dr2] = time delay for rP1 / rP2 / FL1 / FL2� If the system pressure 

falls below rPx or if the system pressure leaves the acceptable range 

(window), the output changes the switching status when the time drx has 

elapsed�

 

Select [dS1], [dS2], [dr1] or [dr2] and set the value between 0 and 

5000 ms in steps of 2 ms (at 0 the time delay is not active)�

9.3.2  Setting of the damping for the switching outputs

 

Select [dAP] and set a value�

dAP value = response time between pressure change and change of the 

switching status in milliseconds�

The following fix values can be set; they define the switching frequency (f) 

of the output:

dAP 2�5

5

10

30

60 100 250 500 1000 2000

f 200 100 50

16

8

5

2

1

0�5

0�25

9.3.3  Configuration of the display

 

Select [diS] and set the update rate and orientation of the display:

 -[d1]: update of the measured values every 50 ms�

 -[d2]: update of the measured values every 200 ms�

 -[d3]: update of the measured values every 600 ms�

 -[Ph]: Display of the measured peak value remains for a short time 

(peak hold)�

 -[rd1], [rd2], [rd3], [rPH]: display as for d1, d2, d3; rotated by 180°�

 -[OFF]: the display is switched off in the operating mode�

 

Select [cLor] and define the colour of the digital display�

 -[r-on]: display = red if output 1 is switched; display = green if output 1 

is not switched�

 -[G-on]: display = green if output 1 is  switched; display = red if output 

1 is not switched�

 -[red]: the colour of the display is red / does not change�

 -[Gren]: the colour of the display is green / does not change�

Summary of Contents for PQ78 Series

Page 1: ...Operating instructions Pressure sensor PQ78xx UK 80007231 00 06 2019...

Page 2: ...9 1 General parameter setting 12 9 2 Setting of the output signals 14 9 2 1 Setting of the unit of measurement for system pressure 14 9 2 2 Setting of the output function 14 9 2 3 Setting of the switc...

Page 3: ...s documentation must contain all necessary information and safety instructions for the operator the user and if applicable for any service personnel authorised by the manufacturer of the system Read t...

Page 4: ...3 42 4 Vp The Sensor shall be connected only by using any R C CYJV2 cord having suitable ratings 3 Functions and features The unit monitors the system pressure in pneumatic and compressed air network...

Page 5: ...changes its switching state if it is above or below the set switching limits SPx rPx The following switching functions can be selected Hysteresis function normally open oux Hno fig 1 Hysteresis funct...

Page 6: ...ing Before installing and removing the unit make sure that no pressure is applied to the system Screw the pressure connection or adapter G to the main pressure connection 1 and tighten Maximum tighten...

Page 7: ...ge Maximum tightening torque 0 5 Nm Hook the unit into the DIN rail and clip it into place Removal Lever out the mounting clip with a screwdriver at the top or at the bottom and remove the unit 5 3 Re...

Page 8: ...tallation of electrical equipment must be adhered to Voltage supply to EN 50178 SELV PELV Disconnect power Connect the unit as follows 4 L L 2 1 3 Out 1 Out 2 4 2 2 1 4 3 Pin 1 Ub Pin 3 Ub Pin 4 OUT1...

Page 9: ...5 to 6 not used LED 7 LED 8 switching state of the corresponding output 9 Alphanumeric display 4 digits Indication of the current system pressure Indication of the parameters and parameter values 10 S...

Page 10: ...10 8 Menu 8 1 Menu structure S M M S M M S M M S M S M M S M M M S M M S M M S M S M S M M M M S M M S M S M M S M RUN M M M S M M S M M S M M M S M M S...

Page 11: ...r OUT1 Switching signal for the pressure limit values hysteresis function H or window function F either normally open no or normally closed nc ou2 Output function for OUT2 Switching signal for the pre...

Page 12: ...r flashes for 5 s After 5 s setting value is changed incrementally by pressing the button once or continuously by keeping the button pressed Numerical values are incremented continuously To reduce the...

Page 13: ...t parameter of the sub menu is displayed here uni Locking unlocking The unit can be locked electronically to prevent unintentional settings Make sure that the unit is in the normal operating mode Pres...

Page 14: ...tion normally closed diA output 2 is used as a diagnostic output 9 2 3 Setting of the switching limits hysteresis function Make sure that the function Hno or Hnc is set for ou1 or ou2 Select SP1 SP2 a...

Page 15: ...nge of the switching status in milliseconds The following fix values can be set they define the switching frequency f of the output dAP 2 5 5 10 30 60 100 250 500 1000 2000 f 200 100 50 16 8 5 2 1 0 5...

Page 16: ...n briefly flashes Release SET Press Mode Enter briefly to confirm the new offset value Reset of the teached value Select coF and set the value 0 9 4 Service functions 9 4 1 Reading of the min max valu...

Page 17: ...ns to the Run mode 10 2 Fault indication OL Overload pressure measuring range exceeded UL Underload pressure below measuring range SC1 Short circuit in OUT1 SC2 Short circuit in OUT2 SC Short circuit...

Page 18: ...P1 FH1 25 VMR rP1 FL1 23 VMR ou1 Hno ou2 Hno SP2 FH2 75 VMR rP2 FL2 73 VMR coF 0 0 dS1 0 dr1 0 dS2 0 dr2 0 dAP 2 5 diS d2 uni bAr cLor r on the indicated percentage of the final value of the measuring...

Page 19: ...19 UK More information at www ifm com...

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