Emerson Process Management El-O-Matic E and P Series E25-E950 - Handbuch (Seite 55)

28 DOC,F20,EDN Rev.: -
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").
Action "Direct" = 4-20mA at CCW
rotation
Wirkungsweise "Direkt" = 4-20mA bei
CCW Rotation
Werkwijze "Direkt" = 4-20mA bij rota-
tie tegen de klok in
Action "Reverse" = 20-4mA at CCW
rotation
Wirkungsweise "Umgekehrt" = 20-4mA
bei CCW Rotation
Werkwijze "Omgekeert" = 20-4mA bij
rotatie tegem de klok in.
7.0 Position transmitter option PTF20 / Stellungsgeberoption PTF20 / Positietransmitter
optie PTF20
Standard
"Direct" Action
7.2
7.3
-
+
Jumpersetting "Action"
Output signal:
Signal ; 4-20 mA
Voltage : 15-30 VDC
"Zero"
"Span"
"Revers" Action
Valve position
20 mA
4 mA
0 mA
0%
100%