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5.4
Operation Via Inputs and Outputs
Digital input
DI 1
Flow decrease
As long as the signal at DI 1 is active, the flow is gradually decreased until
the valve is completely closed. The valve can only be controlled in the Flow
mode.
DI 2
Flow increase
As long as the signal at DI 2 is active, the flow is gradually increased until the
valve is completely opened. The valve can only be controlled in the Flow
mode.
DI 3
External CLOSE
As long as the signal at DI 3 is active, the valve plate moves in closing di-
rection. When the signal drops off, the CMOVE 1250 continues controlling in
the previously selected mode to the corresponding nominal value (setpoint)
(Flow or Pressure).
DI 4
External OPEN
As long as the signal at DI 4 is active, the valve plate moves in opening di-
rection. When the signal drops off, the CMOVE 1250 continues controlling in
the previously selected mode to the corresponding nominal value (setpoint)
(Flow or Pressure).
DI 5
Flow mode
Changes to the Flow mode. When the signal drops off, the CMOVE 1250
keeps working in this mode and controls to the Flow setpoint.
DI 6
Pressure mode
Changes to the Pressure mode. When the signal drops off, the CMOVE 1250
keeps working in this mode and controls to the Pressure setpoint.
DI 7
Emission ON (HV ON)
The Emission function is activated if the connected pressure sensor offers
this function. See instructions of the corresponding pressure sensor for
further details
[3] … [12].
DI 8
Degas ON
The Degas function is activated if the connected pressure sensor offers this
function. See instructions of the corresponding pressure sensor for further
details
[3] … [12].