Flowserve AF-17 Electronic Positioner - Manual (Page 2)

2 AF-17 Electronic Positioner: Installation, Operation and Maintenance WCAIM2031
1.0 GENERAL 3
1.1 Basic Design 3
1.2 Environmental Considerations 4
1.2.1 Temperature 4
1.2.2 Positioner Temperature 4
1.2.3 Humidity 4
1.2.4 Input Circuit Noise Protection 4
2.0 ELECTRONIC CIRCUIT BOARD 6
2.1 General 6
2.2 Circuit Board Configurations 6
2.3 LED Indicators 6
2.4 Controls 6
2.4.1 Range 6
2.4.2 Zero 6
2.4.3 A-H 6
2.5 AC Power Control 6
3.0 INSTALLATION OF AF-17 INTO
3.0 SERIES 75 ELECTRIC ACTUATOR 7
3.1 General 7
3.1.1 Check Kit for Parts 7
3.1.2 Tools Needed 8
3.1.3 Operation Check of Basic Actuator 8
3.2 Mounting Potentiometer 8
3.2.1 Mounting Single Potentiometer Into
Series 75 Electric Actuator 8
3.2.2 Mounting Dual Potentiometer Into
Series 75 Electric Actuator 8
3.2.3 Potentiometer Wiring 8
3.2.4 Adjusting Potentiometer 9
3.2.5 Important Note 9
3.3 Mounting Circuit Board 11
3.3.1 For 120/240 VAC 10-23 Size Electric Actuators 11
3.3.2 For 120/240 VAC 25 and 30 Size Electric Actuators 12
3.3.3 For Optional 4-20 mA Position Output Installation 12
3.4 Wiring AF-17 Board to Actuator 13
3.4.1 Terminal Strip 13
3.4.2 Feedback Connections 14
3.4.3 Output Connections 14
3.4.4 For 10-30 AF-17 240 VAC Positioner Wiring 14
3.4.5 Wiring for AF-17 with 4-20 mA Position Output 14
3.5 Actuator Power 15
3.5.1 Wire Size 15
3.5.2 Terminations and Voltage 15
3.5.3 Minimum Fuse Ratings 15
3.6 Input Signal Connections 16
3.6.1 Milliampere 15
3.6.2 Resistive 16
3.6.3 Direct 17
4.0 CALIBRATION AND ADJUSTMENT 17
4.1 Initial Setup and Adjustment 17
4.2 Zero Adjustment 17
4.3 Range Adjustment 17
4.4 AH Adjustment 17
4.5 Adjustment Recheck 18
4.6 Operational Check 18
4.6.1 Increasing Signal 18
4.6.2 Decreasing Signal 18
4.6.3 Attaching Label 18
4.7 If Problems Occur 18
4.7.1 Cam Adjustment 18
4.7.2 Feedback Pot Calibration 18
4.7.3 Reverse Acting 18
4.7.4 Adjustment to Loop Process 18
4.7.5 Check Fuse F1 19
4.7.6 Check Basic Actuator for Proper Operation 19
4.7.7 Check for Noise Problems 19
4.7.8 Replace Circuit Board 19
5.0 OPERATIONAL VARIABLES 19
5.1 Sensitivity 19
5.2 Reduced Travel Operation 19
5.3 Split Range 19
5.4 Reverse Action 19
5.4.1 Milliampere Input 20
5.4.2 Resistive Input 20
5.4.3 Voltage Input 20
5.4.4 240 VAC 20
6.0 TECHNICAL DATA 20
6.1 AC Input Voltage 20
6.2 Input Circuit Specs 20
6.3 Output Circuit Specs 21
6.4 Input Circuit Characteristics 21
6.4.1 Input Circuit Load Resistances 21
6.4.2 Nominal Useable Input Signal Deadband 21
6.5 Controls 21
7.0 APPLICATION NOTES 22
7.1 DC Motor Actuator 22
7.2 Bypass Switch for Manual Control 22
8.0 TROUBLESHOOTING 23
8.1 General 23
8.2 Symptom Table 24
8.3 Troubleshooting Guidelines 25
9.0 SUGGESTED SPARES 27
Flow Control Division
Worcester Controls
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