10.
Commissioning (optional equipment settings)
10.1.
EWG 01.1 electronic position transmitter
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
signal between 0 – 20 mA or 4 – 20 mA is generated.
Technical data
Table 23: EWG 01.1
2-wire system
3-wire and 4-wire systems
Data
4 – 20 mA
0 – 20 mA, 4 – 20 mA
Output current I
a
24 V DC (18 – 32 V)
24 V DC (18 – 32 V)
Power supply U
V
1)
20 mA
LED off = 26 mA, LED on = 27 mA
Max. current consumption
(U
V
– 12 V)/20 mA
600
Ω
Max. load R
B
0.1 %
Impact of power supply
0.1 %
Load influence
< 0.1 ‰/K
Temperature impact
–60 °C to +80 °C
Ambient temperature
2)
Power supply possible via: AC, AM actuator controls or external power supply
1)
Depending on temperature range of the actuator: Refer to name plate
2)
Setting elements
The EWG is housed in the actuator switch compartment. The switch compartment
must be opened to perform any settings. Refer to <Switch compartment: open>.
All settings are made via the two push buttons [S1] and [S2].
Figure 64: View on control unit when switch compartment is open
[S1]
Push button: Set 0/4 mA
[S2]
Push button: Set 20 mA
LED Optical aid for setting
[1]
Measuring point (+) 0/4 – 20 mA
[2]
Measuring point (–) 0/4 – 20 mA
The output current (measuring range 0 – 20 mA) can be checked at measuring points
[1] and [2].
Table 24:
Short overview on push button functions
Function
Push but-
tons
→
press simultaneously for 5 s: Activate setting mode
[S1] + [S2]
→
press in setting mode for 3 s: Set 4 mA
→
press in setting mode for 6 s: Set 0 mA
→
press in operation for 3 s: Switch on/off LED end position signalling.
→
touch in end position: Reduce current value by 0.02 mA
[S1]
→
press in setting mode for 3 s: Set 20 mA
→
press in operation for 3 s: Switch on/off LED end position signalling.
→
touch in end position: Increase current value by 0.02 mA
[S2]
60
SQ 05.2 – SQ 14.2 / SQR 05.2 – SQR 14.2 Control unit - electromechanical
Commissioning (optional equipment settings)
AC 01.2 Intrusive Modbus RTU
