Endress+Hauser Mycom S CLM 153 Operating Instructions Manual page 54

6 Commissioning
!
Selection aid for online processes
Process Path
looking-
ahead
· 2-circuit
· flow
2-sided
control
not looking-
ahead
54
Note!
With a two-sided process, it should be noted that the actuator uses this method (also
known as "split range").
Stroke
A
[%]
100
50
0
4 8 12 16
Fig. 20: A: Stroke diagram for a control valve
B: Stroke diagram for two contrarotating control valves ("split range")
You can refer to the following selection aids to find the required hardware equipment
level for your process.
This selection is not complete. If you wish to use additional functions such as NAMUR
or ChemoClean, please check to see if you require additional relays (NAMUR: Alarm
relay + 2 relays; ChemoClean: 2 relays).
Dosing actuators
2 PWM
2 PFM
with
1 three-PS
signal
1 PWM/PFM
without
signal
current output
split range
2 PWM
2 PFM
with
signal
1 three-PS
1 PWM/PFM
without
signal
current output
Stroke
[%]
100
mA
20
Required hardware equipment
for control
Circuits Relay
2 2
2 2
2 3
2 3
–
2
1 2
1 2
1 3
1 3
–
1
Mycom S CLM 153
B
50
0
mA
4 8 12 16 20
Current Current
inputs outputs
–
1
–
1
–
2
–
1
1 1
– –
– –
–
1
– –
–
1
Endress+Hauser