Delta Electronics Programmable Logic Controller DVP-PLC User Manual
Page 467
8 Application Instructions API 100-149
DVP-PLC Application Manual
8-65
M0
K50
CVM
D0
K50
Y0
D0
T0
TMR
MOV
k-1
T0
2. Control
phases:
1) Phase
1
: When M0 = On, due to that we are not sure about there the valve is, set D0 = K-1 to deliberately
close the valve (Y0 = Off, Y1 = On) for 5 seconds and make sure the valve is at the position of 0 second
before moving on to the next step.
2) Phase
2
: When T0 = On, allow D0 = K40 to start is action. Open the valve (Y0 = On, Y1 = Off) for 4
seconds, moving the valve to the position of 4 seconds.
3) Phase
3
: Change the position of the valve and D0 = K10. Due to that the previous position was at 4
seconds, the valve shall be closed (Y0 = Off, Y1 = On) for 3 seconds, moving the valve to the position of 1
second.
4) Phase
4
: Switch off M0 and the valve will no longer move (Y0 = Off, Y1 = Off).
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