Eaton ELC-PB, Programming Manual

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3 . I n s t r u c t i o n S e t
M N 0 5 0 0 3 0 0 3 E F o r m o r e i n f o r m a t i o n v i s i t : w w w. e a t o n . c o m
3 - 3 3 5
a) When Y0 and Y1 = Off: No valve action
b) When Y0 = On and Y1 = Off: Valve “open”
c) When Y0 = Off and Y1 = On: Valve “closed”
d) When Y0 and Y1 = On: The action is prohibited.
3. Timing diagram and program of the control:
M0
Y0
Y1
D0=k40
D0=k20
D0=k30
D0=k10
4sec
2sec
1sec
2sec
1
2
3
4
5
M0
CVM
D0 K50 Y0
4. Control phases:
1) Phase
1
: When M0 = On, D0 = K40 implies the valve shall be open (Y0 = On, Y1 = Off)
until 4 seconds is reached.
2) Phase
2
: Change the position of the valve. Make D0 = K20. Because the previous
position was at 4 seconds, the valve shall be closed (Y0 = Off, Y1 = On) for 2 seconds.
3) Phase
3
: Change the position of the valve. make D0 = K30. Because the previous
position was at 2 seconds, the valve shall be open (Y0 = On, Y1 = Off) for 1 second,
moving the valve to the position of 3 seconds.
4) Phase
4
: Change the position of the valve. Make D0 = K10. Because the previous
position was at 2 seconds, the valve shall be closed (Y0 = Off, Y1 = On) for 2 seconds,
moving the valve to the position of 1 second.
5) Phase
5
: Switch off M0 and the valve will remain at it’s last state (Y0 = Off, Y1 = Off).