AUMA SQEx 12.2 Manual

Commissioning (optional equipment settings)
34
Data 3-wire and 4-wire systems 2-wire system
Ambient temperature
6)
–76°F to 176°F [–60°C to +80°C]
Transmitter potentiometer 5 kΩ
Setting elements The RWG is housed in the actuator switch compartment. The switch compartment
must be opened to perform any settings. Refer to Open switch compartment [}27].
Setting is made via three potentiometers [1], [2] and [3].
Figure34: View on control unit when switch compartment is open
[1]
[2]
[3]
[4]
[5]
[1] Potentiometer (travel sensor) [2] Potentiometer min. (0/4 mA)
[3] Potentiometer max. (20 mA) [4] Measuring point (+) 0/4 – 20 mA
[5] Measuring point (–) 0/4 – 20 mA
The output current (measuring range 0 – 20 mA) can be checked at measuring points
[4] and [5].
11.2.1
Set measuring range
For measuring range setting, voltage must be applied at the position transmitter.
1. Move valve to end position CLOSED.
2. Connect ammeter for 0 – 20 mA to measuring points [4 and 5]. If no value can be
measured:
Check whether external load is connected to customer connection XK (for stan-
dard wiring: terminals 23/24). Observe max. load R
B
.
Or connect link across customer connection XK (for standard wiring: terminals
23/24).
3. Turn potentiometer [1] clockwise to the stop.
4. Turn potentiometer [1] slightly in opposite direction.
5. Turn potentiometer [2] clockwise until output current starts to increase.
6. Turn potentiometer [2] in opposite direction until the following value is reached:
for 0 – 20 mA approx. 0.1 mA
for 4 – 20 mA approx. 4.1 mA
ð This ensures that the signal remains above the dead and live zero point.
7. Move valve to end position OPEN.
8. Set end value 20 mA using potentiometer [3].
9. Approach end position CLOSED again and check minimum value (0.1 mA or 4.1
mA). Correct if required.
11.3
EWG 01.1 electronic position transmitter
The EWG 01.1 electronic position transmitter signals the remote position or the valve
position. On the basis of the actual valve position sensed by hall sensor, a current sig-
nal between 0 – 20 mA or 4 – 20 mA is generated.
6) Depending on temperature range of the actuator: refer to name tag

AUMA SQEx 12.2 Specifications

General

Brand	AUMA
Model	SQEx 12.2
Category	Controller
Language	English