IFM Electronic efector 500 PI00 A Series User manual

Operating instructions
Electronic pressure sensor
PI00xA
706057/00 06/2011
UK

2
Contents
1 Preliminary note....................................................................................................3
1. Symbols used...................................................................................................3
2 Safety instructions ................................................................................................3
3 Functions and features.........................................................................................4
3.1 Applications ....................................................................................................4
4 Function................................................................................................................4
4.1 Processing of the measured signals ..............................................................4
4.2 Pressure monitoring / switching function........................................................4
4.3 Pressure monitoring/ analogue function.........................................................5
4.4 Diagnostic function .........................................................................................7
5 Installation ............................................................................................................8
6 Electrical connection...........................................................................................10
7 Operating and display elements......................................................................... 11
8 Menu...................................................................................................................12
8.1 Menu structure .............................................................................................12
8.2 Menu explanation ........................................................................................13
9 Parameter setting ...............................................................................................14
9.1 Parameter setting general ............................................................................14
9.2 Configuring the display (optional).................................................................16
9.3 Setting the output signal...............................................................................16
9.3.1 Setting the output function...................................................................16
9.3.2 Setting the switching limits ..................................................................17
9.3.3 Scaling the analogue value .................................................................17
9.4 User settings (optional) ................................................................................18
9.4.1 Zero-point calibration...........................................................................18
9.4.2 Setting the delay time for OUT1 ..........................................................18
9.4.3 Setting the output polarity for OUT1....................................................18
9.4.4 Setting the damping for the switching signal .......................................18
9.4.5 Setting the damping for the analogue signal .......................................18
9.5 Service functions ..........................................................................................19
9.5.1 Reading the min./max. values for the system pressure ......................19
9.5.2 Reset all parameters to the factory setting..........................................19

3
UK
1 Preliminary note
1. Symbols used
►Instruction
> Reaction, result
[…] Designation of buttons, switches or indications
→Cross-reference
Important note
Non-compliance can result in malfunctions or interference.
2 Safety instructions
• Read this ducument before installing the unit. Ensure that the product is suit-
able for your application without any restrictions.
• Non-adherence to the operating instructions or technical data can lead to
personal injury and/or damage to property.
• Inallapplicationscheckcomplianceoftheproductmaterials(→chapter12
Technical data) with the media to be measured.
• Observetheinstructionsforthesafeuseinhazardousareas:→Operating
instructions (Ex protection related part) for pressure sensors according to EU
directive 94/9/EC annex VIII (ATEX) group II, equipment category 3D/3G.
If no operating instructions (Ex protection related part) or EC declaration of
conformity is supplied with this product in the language of the EU user country,
these can be requested from your dealer (see delivery note) or manufacturer
(see cover sheet / back).
10 Operation..........................................................................................................19
10.1 Read the set parameter values ..................................................................19
10.2 Fault indication ...........................................................................................19
10.3 Cleaning of the filter cover..........................................................................20
11 Scale drawing ..................................................................................................21
12 Technical data...................................................................................................21
12.1 Setting ranges ............................................................................................23
13 Factory setting..................................................................................................24

4
3 Functions and features
The pressure sensor detects the system pressure of machines and installations.
3.1 Applications
Type of pressure: relative pressure
Order no. Measuring range Permissible
overload pressure Bursting pressure
bar PSI bar PSI bar PSI
PI003A -1...25 -14.4...362.7 100 1 450 350 5 070
mbar PSI bar PSI bar PSI
PI008A -12.4...250 -0.18...3.62 10 145 30 435
PI009A -1 000...1 000 -14.5...14.5 10 145 30 435
MPa = bar ÷ 10 / kPa = bar × 100
Static and dynamic overpressures exceeding the indicated overload pres-
sure are to be avoided by taking appropriate measures.
The indicated bursting pressure must not be exceeded. Even if the burst-
ing pressure is exceeded only for a short time, the unit can be destroyed.
NOTE: Risk of injury!
4 Function
4.1 Processing of the measured signals
• The unit displays the current system pressure.
• It generates 2 output signals according to the parameter setting.
OUT1
2 selection options
•switching signal for pressure limit values.
•diagnostic signal (in case of a fault output 1 becomes inactive).
OUT2
4 selection options
•analogue signal 4...20 mA; analogue signal 20...4 mA
•analogue signal 0...10 V; analogue signal 10...0 V
4.2 Pressure monitoring / switching function
OUT1 changes its switching state if it is above or below the set switching limits
(SP1, rP1). The following switching functions can be selected:
• Hysteresisfunction/normallyopen:[OU1]=[Hno](→fig.1).
• Hysteresisfunction/normallyclosed:[OU1]=[Hnc](→fig.1).

5
UK
First the set point (SP1) is set, then the reset point (rP1) at the requested
distance.
• Windowfunction/normallyopen:[OU1]=[Fno](→fig.2).
• Windowfunction/normallyclosed:[OU1]=[Fnc](→fig.2).
The width of the window can be set by means of the distance between SP1
and rP1. SP1 = maximum value, rP1 = minimum value.






















1 2
P = system pressure; HY = hysteresis; FE = window
4.3 Pressure monitoring/ analogue function
The analogue signal can be set.
• [OU2] defines whether the set measuring range is provided as a 4...20 mA
signal ([OU2] = [I]), a 20...4 mA signal ([OU2] = [InEG]), a 0...10 V signal ([OU2]
= [U]) or a 10...0 V signal ([OU2] = [UnEG]).
Scaling can also be set by means of the teaching process or by entering a value
for the ASP and AEP parameters.
• By teaching the analogue start point (tASP) or setting the parameter ASP you
define the measured value at which the output signal is 4 mA / 0 V (20 mA /
10 V at [InEG] / [UnEG]).
• By teaching the analogue end point (tAEP) or setting the parameter AEP you
define the measured value at which the output signal is 20 mA / 10 V (4 mA /
0 V at [InEG] / [UnEG]).
Minimum distance between [ASP] and [AEP] = 25 % of the final value of the mea-
suring range (turn down 1:4).

6
Current output
Factory setting Measuring range scaled













 


P = system pressure, MAW = initial value of the measuring range, MEW = final value of
the measuring range
1
: [OU2] = [I];
2
: [OU2] = [InEG]
The output signal is between 4 and 20 mA ([OU2] = [I]) or between 20 and 4 mA
([OU2] = [InEG]). It is also indicated:
• System pressure above the measuring range:
- output signal > 20 mA if [OU2] = [I].
- output signal between 4 and 3.8 mA if [OU2] = [InEG].
• System pressure below the measuring range:
- output signal between 4 and 3,8 mA if [OU2] = [I].
- output signal > 20 mA if [OU2] = [InEG].

7
UK
Voltage output
Factory setting Measuring range scaled











 


P = system pressure, MAW = initial value of the measuring range, MEW = final value of
the measuring range
1
: [OU2] = [U];
2
: [OU2] = [UnEG]
The output signal is between 0 and 10 V ([OU2] = [U]) or between 10 and 0 V
([OU2] = [UnEG]) in the set measuring range.
It is also indicated:
• System pressure above the measuring range:
- output signal > 10 V if [OU2] = [U].
• System pressure below the measuring range:
- output signal > 10 V if [OU2] = [UnEG].
4.4 Diagnostic function
Output 1 is used as a diagnostic output according to DESINA specification if OU1
= dESI.
• If there is no fault, the output is switched and carries UB+ (if P-n = PnP) or
UB- (if P-n = nPn).
• In case of malfunctions the output becomes inactive. The following malfunc-
tions are detected:
- undervoltage (starting with 18V); overvoltage (starting with 33V);
- temperature at the process connection too high (> 150°C) / too low (< -30°C);
- intrinsic temperature of the unit too high (> 100°C) / too low (< -30°C);
- RAM fault.

8
5 Installation
Ensure that no pressure is applied to the installation while mounting or
removing the sensor. Please note: Display „0%“ does not mean that the
system is free of pressure!
Horizontal mounting recommended for high medium temperatures.
►Slightly grease the thread of the
sensor using a lubricating paste
which is suitable and approved for
the application.
►Screw the sensor into a G 1 pro-
cess fitting.
►Tighten the sensor with a spanner.
Tightening torque: 20 Nm..
A
36
A = freely rotatable housing
The unit is adaptable for various G 1 process fittings. G 1 process adapters to be
ordered separately as accessories.

9
UK
Mounting
A

B
C
36
1 3
2
►Slightly grease the contact areas between the sensor and adapter using a
lubricating paste which is suitable and approved for the application.
►Screw the unit into the adapter (A) until it is hand-tight (fig. 1). Do not damage
the sealing chamfers.
►Clamp sensor and adapter into a clamping device (B); (fig. 2). Tighten the
clamping device only slightly so that the adapter does not warp.
►Tighten the sensor using a spanner .
Tightening torque: 20 Nm.
►Fix the unit + adapter to the process connection by means of a coupling nut, a
clamp flange or the like (C); (fig 3).
NOTE: A guarantee for a long-term stable sealing of the metal seal is only valid for
once-only mounting.
Welding adapter
►First weld the adapter, then mount the sensor. Follow the instructions included
with the adapter.

10
6 Electrical connection
The unit must be connected by a qualified electrician.
The national and international regulations for the installation of electrical
equipment must be adhered to.
Voltage supply to EN50178, SELV, PELV.
►Disconnect power.
►Connect the unit as follows:
OUT1 p-switching OUT1 n-switching















 











Pin 1 Ub+
Pin 3 Ub-
Pin 4 (OUT1) •binary switching output for pressure monitoring
•diagnostic output if [OU1] = [dESI]
Pin 2 (OUT2) •analogue output for system pressure
Core colours of ifm sockets:
1 = BN (brown), 2 = WH (white), 3 = BU (blue), 4 = BK (black)

11
UK
7 Operating and display elements



 
      
1 to 8: Indicator LEDs
- LED 1 to LED 6 = system pressure in unit of measurement as indicated on the label.
LEDs 5 to 6 not used for units with 3 adjustable units of measurement.
- LED 7 not used.
- LED 8 = switching state of the output (LED lights if output 1 is switched).
9: Alphanumeric display, 4 digits
- Indication of the current system pressure.
- Indication of the parameters and parameter values.
10: Set pushbutton
- Setting of the parameter values (scrolling by holding pressed, incremental by pressing
briefly).
11: Mode/Enter pushbutton
- Selection of the parameters and acknowledgement of the parameter values.

12
8 Menu
8.1 Menu structure




































































13
UK
8.2 Menu explanation
SP1/rP1 Maximum / minimum value for system pressure, at which output 1 changes
its switching status.
OU1 Output function for OUT1:
•Switching signal for the limit values: hysteresis function [H ..] or window
function [F ..], normally open [. no] or normally closed [. nc] each.
•Diagnostic signal [dESI].
OU2 Output function for OUT2:
•Analogue signal for the current system pressure : 4...20 mA [I], 20...4 mA
[InEG], 0...10 V [U], 10...0 V [UnEG].
tCOF Teaching zero-point calibration.
tASP Teaching analogue start point for the system pressure: set value at which
4 mA / 0 V are output (20 mA / 10 V on [OU2] = [InEG] / [UnEG]).
tAEP Teaching analogue end point for the system pressure: set value at which
20 mA / 10 V are output (4 mA / 0 V on [OU2] = [InEG] / [UnEG]).
EF Extended functions / Opening menu level 2.
Uni Standard unit of measurement for the system pressure.
SELd
Display mode:
•Pressure in the unit set in [Uni].
•Pressure in % of the set scaling of the analogue output.
ASP Analogue start point for the system pressure: measured value at which
4 mA / 0 V are output (20 mA / 10 V on [OU2] = [InEG] / [UnEG]).
AEP Analogue end point for the system pressure: measured value at which
20 mA / 10 V are output (4 mA / 0 V on [OU2] = [InEG] / [UnEG]).
HI Maximum value memory for the system pressure.
LO Minimum value memory for the system pressure.
COF Zero point calibration.
dS1 Switch-on delay for OUT1.
dr1 Reset delay for OUT1.
P-n Output polarity for OUT1: pnp or npn.
dAP Damping for the switching output (OUT1).
dAA Damping for the analogue output (OUT2).
diS Update rate and orientation of the display.
rES Restore the factory setting.

14
9 Parameter setting
During the parameter setting process the unit remains in the operating mode. It
continues its monitoring function with the existing parameters until parameter set-
ting has been terminated.
9.1 Parameter setting general
Each parameter setting requires 3 steps:
1Selecting parameter
►Press [Mode/Enter] until the re-
quested parameter is displayed.
 
2Setting the parameter value
►Press [Set] and keep the buton
pressed.
> Current setting value of the param-
eter bit flashes for 5 s.
> After 5 s: Setting value is changed:
incremental by pressing briefly or
scrolling by holding pressed.
 
The numerical values are incremented continuously. If the value is to be reduced: Let
the display move to the maximum setting value. Then the cycle starts again at the
minimum setting value.
3Acknowledge parameter value
►Press [Mode/Enter] briefly.
> The parameter is displayed again.
The new setting value is stored.
 
Set more parameters
►Start again with step 1.
Finishing parameter setting
►Press [Mode/Enter] several times until the current measured value is displayed or wait
for 15 s.
> The unit returns to the operating mode.

15
UK
• Changing from menu level 1 to menu level 2:
►Press [Mode/Enter] until [EF] is
displayed.
 
►Press [Set] briefly.
> The first parameter of the submenu is
displayed (here: [Uni]).
If menu level 2 is protected by an access
code, „Cod1“ flashes in the display.
►Press [Set] and keep it pressed until
the valid code no. is displayed.
►Press [Mode/Enter] briefly.
Delivery by ifm electronic: no access
restriction.
 
• Locking / unlocking
The unit can be locked electronically to prevent unintentional wrong settings.
►Ensure that the unit is in the normal
operating mode.
►Press [Mode/Enter] + [Set] for 10 s.
> [Loc] is displayed.
 

During operation: [Loc] is displayed briefly when you try to change parameter values.
For unlocking:
►Press [Mode/Enter] + [Set] for 10 s.
> [uLoc] is displayed.
 

On delivery: Unlocked.
• Timeout:
If no button is pressed for 15 s while the parameters are being set, the unit returns to
the operating mode with unchanged values.

16
9.2 Configuring the display (optional)
►Select [Uni] and set the unit of measurement:
- [bAr], [mbAr],
- [MPA], [kPA],
- [PSI],
- [InHO] (only PI008A, PI009A),
- [mWS] (only PI009A),
- [mmWS] (only PI008A).
►Select [SELd] and set the display mode:
- [P]: Pressure in the unit set in Uni.
- [P%]: percentage value (pressure in % of the set scaling of the
analogue output. The following applies: 0% = ASP value; 100% = AEP
value).
NOTE: Display „0%“ does not mean that the system is free of pressure.
►Select [diS] and set update rate and orientation of the display:
- [d1]: Update of the measured value every 50 ms.
- [d2]: Update of the measured value every 200 ms.
- [d3]: Update of the measured value every 600 ms.
- [rd1], [rd2], [rd3]: Display like d1, d2, d3; rotated by 180°.
- [OFF]: The display is deactivated in the operating mode.
9.3 Setting the output signal
9.3.1 Setting the output function
►Select [OU1] and set the switching function:
- [Hno] = hysteresis function / normally open,
- [Hnc] = hysteresis function / normally closed,
- [Fno] = window function / normally open,
- [Fnc] = window function / normally closed.
As an alternative: configure OUT1 as diagnostic output:
►Select [OU1] and set [dESI].
►Select [OU2] and set the anologue function:
- [I] = current signal proportional to the pressure 4…20 mA,
- [InEG] = current signal proportional to the pressure 4…20 mA,
- [U] = voltage signal proportional to the pressure 0...10 V,
- [UnEG] = voltage signal proportional to the pressure 10...0 V.

17
UK
9.3.2 Setting the switching limits
►Select [SP1] and set the value at which OUT1 switches.
►Select [rP1] and set the value at which OUT1 switches back.
rP1 is always lower than SP1. The unit only accepts values which are lower
than SP1.
9.3.3 Scaling the analogue value
►Set the requested minimum pressure in the system.
►Press [Mode/Enter] until [tASP] is displayed.
►Press [Set] and keep the buton pressed.
> The currently set value flashes.
►Release [Set] when the display stops flashing.
> The new set value is displayed.
►Press [Mode/Enter] briefly.
> The current system pressure is defined to be the start value for the
analogue signal.
►Set the requested maximum pressure in the system.
►Press [Mode/Enter] until [tAEP] is displayed.
►Press [Set] and keep the buton pressed.
> The currently set value flashes.
►Release [Set] when the display stops flashing.
> The new set value is displayed.
►Press [Mode/Enter] briefly.
> The current system pressure is defined to be the end value for the
analogue signal.
ASP/AEPcanonlybetaughtwithindefinedlimits(→12.1settingranges).Iftheteaching
process is carried out at an invalid pressure, [UL] or [OL] is displayed. After acknowledge-
ment by [Mode/Enter], [Err] flashes, the ASP value / AEP value is not changed.
As an alternative:
►Select [ASP] and set measured value at which 4 mA / 0 V are output
(20 mA / 10 V at [OU2] = [InEG] / [UnEG]).
►Select [AEP] and set measured value at which 20 mA / 10 V are output
(4 mA / 0 V at [OU2] = [InEG] / [UnEG]).
Minimum distance between ASP and AEP = 25 % of the final value of the
measuring range (scaling factor 1:4).

18
9.4 User settings (optional)
9.4.1 Zero-point calibration
►Select [COF] and set a value between -5% and 5% of the final value of
the measuring range. The internal measured value “0” is shifted by this
amount.
As an alternative:
Automatic adaptation offset (setting range 0 bar ±5%); e.g. in the event of a
deviation of the mounting location of the sensor and the zero point level for
level measurement.
►Make sure that no pressure is applied to the system.
►Press [Mode/Enter] until [tCOF] is displayed.
►Press [Set] and keep the buton pressed.
> The current offset value (in %) briefly flashes, then the current system
pressure (in the selected display unit) is displayed.
►Release [Set].
►Press [Mode/Enter] briefly to confirm the new offset value.
9.4.2 Setting the delay time for OUT1
[dS1] = switch-on delay / [dr1] = switch-off delay.
►Select [dS1] or [dr1] and set the value between 0.1 and 50.0 s (at 0.0 the
delay time is not active).
9.4.3 Setting the output polarity for OUT1
►Select [P-n] and set [PnP] or [nPn].
9.4.4 Setting the damping for the switching signal
►Select [dAP] and set value between 0.1 and 100.0 s (at 0.0 = [dAP] is
not active).
dAP value = response time between pressure change and change of the
switching status in seconds.
[dAP] influences the switching frequency: fmax = 1 ÷ 2dAP.
[dAP] also affects the display.
9.4.5 Setting the damping for the analogue signal
►Select [dAA] and set value between 0.1 and 100.0 s (at 0.0 = [dAA] is
not active).
dAA value = response time between pressure change and change of the
analogue signal in seconds.

19
UK
9.5 Service functions
9.5.1 Reading the min./max. values for the system pressure
►Select [HI] or [LO], press [Set] briefly.
[HI] = maximum value, [LO] = minimum value.
Delete memory:
►Select [HI] or [LO].
►Press [SET] until [----] is displayed.
►Press [MODE/ENTER] briefly.
9.5.2 Reset all parameters to the factory setting
►Select [rES]
►Press [SET] until [----] is displayed.
►Press [MODE/ENTER] briefly.
It makes sense to note down your own settings before executing the func-
tion(→13Factorypreset).
10 Operation
After power on of the supply voltage the unit is in the Run mode (= normal opera-
tion). It carries out its measurement and evaluation functions and generates output
signals according to the set parameters.
Operationindicatin→chapter7Operatinganddisplayelements.
10.1 Read the set parameter values
►Press [Mode/Enter] until the requested parameter is displayed.
►Press [Set] briefly.
> The unit displays the corresponding parameter value for about 15 s. After
another 15 s the unit returns to the Run mode.
10.2 Fault indication
[OL] Overload pressure (measuring range exceeded).
[UL] Underpressure range (measuring range below the minimum value).
[SC1] Short circuit in OUT1; the output is switched off as long as the short circuit exists.
[Err] Internal fault, invalid input.
The faults SC1 and Err are indicated even if the display is deactivated.

20
10.3 Cleaning of the filter cover
If viscous and residues producing
media clog the filter cover of the sen-
sor (and thus reduce the measuring
accuracy slightly), you can clean it.
►Unscrew the filter cover (B) (use a
pair of pliers with plastic-covered
jaws for this).
►Clean the cover thoroughly.
AB
The vent (A) should only be cleaned by skilled personnel and with utmost care.
Possible medium residues must not be compressed and pressed into the vent.
This could clog the filter system and reduce the measuring accuracy of the
sensor.
►Screw the filter cover again tightly.