Gemu 1436 cPos - Default Chapter; Table of Contents

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1436 cPos
Contents
1 General safety information 4
1.1 General information 4
1.2 Explanation of symbols and signs 4
1.3 Safety notes 4
1.4 Correct use 5
1.5 Information on use in damp conditions 5
1.6 Mounting position 5
1.7 Tools required for installation and assembly 5
2 Manufacturer's information 5
2.1 Transport 5
2.2 Delivery and performance 5
2.3 Storage 5
2.4 Function 5
2.5 Fail safe function 5
3 Diagrammatic view of the inputs and outputs 6
4 Mechanical mounting 7
4.1 Mounting to linear actuators 7
4.1.1 Preparation of the valve actuator 7
4.1.2 Assembling the travel sensor 7
4.1.3 Mounting the positioner 7
4.1.4 Mounting the external travel sensor
(only for version with remote mounting) 7
4.2 Mounting to quarter turn actuators 8
4.2.1 Preparation of the valve actuator 8
4.2.2 Assembling the travel sensor 8
4.2.3 Mounting the positioner 9
4.2.4 Mounting the external travel sensor
(only for version with remote mounting) 9
4.2.5 Checking the mounted assembly 9
4.3 Remote mounting to linear or quarter turn actuators 10
4.3.1 Preparation of the valve actuator 10
4.3.2 Assembling the travel sensor 10
4.3.3 Mounting the external travel sensor
(only for version with remote mounting) 10
4.3.4 Checking the mounted assembly 10
4.3.5 Mounting the mounting bracket 10
4.3.6 Connecting the travel sensor 10
5 Pneumatic connections 10
6 Electrical connections 10
6.1 Version with external actual value potentiometer
(code S01) 11
6.2 Supply voltage 11
6.3 Set value input
(only eective for AUTO operating mode) 11
6.4 Actual value input
(sensor signal when operating as a process controller) 11
6.5 Actual value output 11
6.6 Outputs 11
6.7 Digital inputs 11
6.7.1 Use of actual value and set value inputs as digital
inputs 12
6.8 Digital inputs (optional) 12
6.9 RS232 – Interface 12
7 Operation 13
7.1 Operating and display elements 13
7.2 Menu levels 13
7.2.1 Working level (Mode) 13
7.2.2 Conguration level (Setup) 13
8 Changing parameters 13
9 Commissioning 14
9.1 General information 14
9.2 Initial commissioning without factory setting
(when supplied without a valve) 14
9.2.1 Automatic initialisation 14
9.2.2 Manual initialisation 14
9.2.3 Menu structure automatic and manual initialisation 15
9.2.4 Error messages during initialisation 16
9.2.5 Initialisation parameters 17
9.3 Initial commissioning with factory setting
(positioner supplied mounted to the valve) 17
10 Operating modes 19
10.1 Operating mode selection 19
10.2 Automatic operation (A:) 19
10.3 Manual operation (M:) 19
10.4 Manual operation with exible
set value specication (F:) 19
10.5 Test mode (T:) 19
10.6 Pause mode (OFF) 19
11 Congurationmenu(Setup) 20
11.1 Changes in the conguration menu 20
11.2 Access authorisation in the conguration menu 20
11.3 Menu structure 1 Service 21
11.4 Menu structure 2 SetBasics 22
11.5 Menu structure 3 SetFunction 23
11.6 Menu structure 4 SetCalibration 24
11.7 Menu structure 5 Communication 25
12 Parameter table 26
13 Explanation of parameters 30
13.1 1 Service 30
13.1.1 Scanning the input and output signals 30
13.1.2 Activating or deactivating the user access 31
13.1.3 Reading out, deleting and deactivating error
messages 32
13.1.4 Display serial number, software version and ID and
enter TAG no. 32
13.2 2 SetBasics 33
13.2.1 Denition of actual value and set value inputs 33
13.2.2 Reset 33
13.2.3 Initialisation 33
13.2.4 Making the display settings 33
13.3 3 SetFunction 34
13.3.1 Setting the process controller parameters (optional) 34
13.3.2 Setting the positioner parameters 35
13.3.3 Setting the dead zone 35
13.3.4 Setting the optional digital input parameters 35
13.3.5 Setting output functions and switch points 36
13.3.6 Setting the error time and error action 37
13.3.7 Storing parameter sets 37
13.3.8 Dening the actual value output 37
13.4 4 SetCalibration 38
13.4.1 Determining the direction of actual value and set
value 38
13.4.2 Dening the characteristics of the control curve 38
13.4.3 Dening the direction of the travel sensor 39
13.4.4 Dening the actual value output signal 39
13.4.5 Determining switch points for error monitoring 39
13.4.6 Scaling the actual value and set value display 39
13.5 5 Communication 40
13.5.1 Setting the eldbus parameters 40
13.5.2 Setting the communication parameters 40
14 Error messages 41
15 Quick guide 42
15.1 Changing the set value signal and actual value
signal 42
15.2 Switching the process controller on or o (optional) 42
15.3 Changing the control parameters
(Proc P, Proc I, Proc D and Proc T) 43
16 General information regarding control
engineering 44
16.1 The control circuit 44
16.2 Control engineering terminology 44
16.3 Control parameters 44
16.4 Adaptation of the controller to the controlled system 45
16.5 Dierential equation for the GEMÜ 1436 cPos 45
16.6 Eects of the control parameters on the control
system 45
16.7 Control characteristics and transitory responses 46
17 Table for changes to the factory settings 47
17.1 Changed control parameters 47
17.2 Set values for the freely programmable
characteristic curve 49
18 Disposal 49
19 Returns 49
20 Information 49
21 Technical data 50
22 Order data 51
23 Fail safe function 61
24 Application examples 62
24.1 GEMÜ 1436 cPos as process controller with
4-wire transmitter (GEMÜ 3021) 62
24.2 GEMÜ 1436 cPos s process controller with
2-wire transmitter (GEMÜ 3020) 62
25 EU Declaration of Conformity 63
List of terms 64