19
Pneumaticconnection
12.1 Connection of external position
sensors for type EP 501 L
→
Connect 4 – 20 mA path sensor to the terminals 1 - 4 of the
type EP 501 L (see chapter „14.5.1 Terminal assignments of the
process actual value input“).
Internal supply of the path sensor by Type EP 501 L:
→
Connection according to input type “4 – 20 mA - internally
supplied”.
Separate supply of the path sensor:
→
Connection according to input type “4 – 20 mA - externally
supplied”.
→
Attach remote sensor on the actuator.
The correct procedure is described in the instructions for the
path sensor.
→
Connect compressed air to the Type EP 501 L.
→
Connect Type EP 501 L pneumatically to the actuator.
→
Switch on Type EP 501 L operating voltage.
→
To obtain the best possible control precision, adjust the path
sensor so that path to be measured corresponds to the signal
range 4 – 20 mA (only if the path sensor includes this function).
→
In the
ADD.FUNCTION
menu activate the
POS.SENSOR
function. Then select
POS.SENSOR
in the main menu and set
ANALOG
.
The procedure is described in the operating instructions for the
device in the chapter
“Starting up and operation of the process
controller / auxiliary functions / POS.SENSOR”.
→
Run the
X.TUNE
function.
13
PNEUMATIC CONNECTION
DANGER!
Risk of injury from high pressure in the equipment!
▶
Before loosening the pneumatic lines and valves, turn off the
pressure and vent the pneumatic lines.
WARNING!
Risk of injury from improper installation!
▶
Installation may be carried out by authorized technicians only
and with the appropriate tools!
Risk of injury from unintentional activation of the system and
an uncontrolled restart!
▶
Secure system from unintentional activation.
▶
Following installation, ensure a controlled restart.
Working connection 2
(connection: A2)
Supply pressure connection
1.4 – 7 bar (connection: P)
Working connection 1
(connection: A1)
Deaeration connection
Fig. 9:
Pneumatic installation / Location of the connections
english
Type EP 501
Summary of Contents for EP 501
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