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Figure 10:
Maintenance and testing commanding,
removal screen
Maintenance warning is activated when Counter 1 has reached the specified
opening value of the actuator and has reached 2 years of service life. It is
closed after maintenance by the technical service.
Early maintenance warning is activated when any internal or external air
leakage occurs, the switch-off time is exceeded or the switch-off cannot
be made. This warning can be switched off by pressing the button after
maintenance.
When you want to perform partial stroke test, you can start the test by
activating the Perform PST test key. The command must be withdrawn after
the test is over.
Switch on-ff times during the operating time of the actuator can be seen in detail from this graph.
b. Manual Control with Buttons
It is controlled manually with 4 buttons on the Smart Switch Box and necessary settings can be made. Also, status information is given
with LEDs on the top of the screen visually. The control method is described in detail in Chapter 3..
c. Control with Control Signal
The smart switch box can send on or off command by ap24 VDC voltage to the EXT_OPN and EXT_CLS terminals on the
electronic board. When +24 VDC is applied to the EXT_OPN terminal, the valve will open and the valve will close when +24 VDC is
applied to the EXT_CLS terminal.
Counter 1 value is the value entered by the user to set for the maintenance warning after how many times switching on-off. After this
value is exceeded, the maintenance warning will be activated.
Threshold on/off time is the value to provide an early maintenance warning if the actuator switches on-off more than the value. When
entering this value, it is useful to calculate the safety margin. If the actuator switch on-of under this value, warning will be removed
automatically.
Figure 11:
Reference value input screen for maintenance warning
Figure 12:
On/Off time graph screen
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valve & automation