EL-O-MATIC F20 Manual De Instalación Y Operación página 28

7.0 Position transmitter option PTF20 / Option d'émetteur du position PTF20 / Opción del
aparato emisor de la posición PTF20
+
-
"Zero"
"Span"
7.2
- Action "Direct" = 4-20mA at
CCW rotation
- Action "Directe" = 4-20mA dans le
sens contraire des aiguilles d'une
montre
- Accionamiento "Directo" = 4-20mA
en el sentido contrario a las agujas
del reloj
- Action "Reverse" = 20-4mA at
CCW rotation
- Action "Inversée" = 20-4mA dans
le sens contraire des aiguilles d'une
montre
- Accionamiento "Inverso" = 20-4mA
en el sentido contrario a las agujas
del reloj
7.3
Jumpersetting "Action"
Output signal:
Signal ; 4-20 mA
Voltage : 15-30 VDC
28
4. Mount positioner on actuator (see chapter 2 or 3).
5. Make electrical connections as shown in fig. 7.2. Connect
also the control signal of the positioner as decribed in
chapter 4.
Wiring information
Wiring dimension : 1.5 mm 2 / 14 AWG
Tool : Screwdriver 0.6 x x 3.5 mm
Turning moment : 0.8 Nm / 7 in/lb
6. Set jumpers to "Direct" or "Reverse" to achieve a 4-20 mA or
a 20-4 mA feedback (see fig. 7.3).
7. Move the actuator pneumatically to the fully closed position.
Adjust the trimmer marked "Zero" to achieve a 4 mA reading
(20 mA in case of "Revers Action").
8. Move the actuator pneumatically to the fully open position.
Adjust the trimmer marked "Span" to achieve a 20 mA
reading (4 mA in case of "Revers Action").
Standard
"Direct" Action
20 mA
4 mA
"Revers" Action
0 mA
Valve position
0%
100%
DOC,F20,EFS Rev.: -