
Contents
Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1
Principle of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1
Application
5
1.2
Versions
5
1.3
Function
5
1.3.1
Electrical equipment
6
2
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1
Installation requirements
12
4.2
Mounting position
12
4.3
Attaching the actuator to a control valve
12
4.4
Manual operation
14
5
Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1
Removing the cover
16
5.2
Establishing the connection
17
5.3
Start-up
17
6
Connection examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Connection example 1(three-way valve)
19
Connection example 2 (globe valve)
20
7
Adjustment and calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.1
Travel
21
7.2
Potentiometer
21
7.3
Electronic position transmitter
22
7.4
Limit switch WE-S3
24
7.5
Signal switch WE-S4 to WE-S6
24
8
Additional electrical equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.1
Heating
26
8.1.1
Retrofitting the heating resistor
26
9
Positioners. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9.1
Electrical connection
27
9.1.1
Connecting the control line
28
9.1.2
Feedback signal
28
9.2
Corrections with potentiometer "A" and "B"
28
9.3
Reversing
29
9.4
Sequential mode
29
10
Maintenance and service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
10.1
Circuit diagram Type SAM - ... with positioner (maximum equipment)
30