ML7421A,B ELECTRICLINEARVALVEACTUATORS
EN0B-0808GE02R0999
3
Output Signal ”POSITION”
An analog output signal 2...10Vdc ”POSITION” is available
which represents the actuator stroke 0...100%. It can be used
for remote indication.
When the actuator stem is fully extended, the output signal is
10Vdc.
Y-Signal Override
To override theY-signal, inputs 1 and 2 (Fig. 3.)
have to be connected as follows:
•
stem extended:
24V
⊥
at input 1; input 2 not connected
•
stem retracted:
24V
⊥
at input 2; input 1 not connected
24Vac power and groundmust be permanently connected.
Input Signal Failure
In case of a signal input (Y) e. g. a brokenwire, the actuator
will run to one of the three positions (only possible ifW4 is
set toV-position):
0%:
actuator stem position for 0(2)Vdc
50%:
actuator stem in central position
100%:
actuator stem position for 10Vdc
W1 is set by the factory to 50%.
Accessories
The following accessories are available upon request:
- Auxiliaryswitches
The actuators can be equipped on sitewith an auxiliary
switch unit with two switches. Their switching points are ad-
justable over the full length of the actuator stroke.
The switches can be used e.g. to switch pumps or to provide
remote indication of any stroke position.
Cable glandsPG11 andPG13.5 are deliveredwith the unit.
Type
for
Stroke
OrderNo.
Auxiliary switches; 250Vac/10A 20mm
(package contains 2SPDT
switches)
38mm
- HighTemperatureKit
Two options for applications +150
°
C...+220
°
Cmedium valve
temperature are available for following valves:
Valve
DN HighTemperatureKit
OrderNo.
V5011A/V5011K
V5013A/V5013G
V5011R/V5013R
V5328A/V5329A
15 - 40
15 - 40
15 - 50
15 - 32
43196000-001
V5011A
V5013A/V5013G
V5328A/V5329A
V5049A
V5050A
50
50
40 - 80
15 - 65
15 - 80
43196000-002
43191680-002
