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60
PREPARING THE DEVICE TO OPERATE AS STEP BY STEP CONTROLLER
Here there is a brief explanation about the necessary parameters to be configured or
programmed in a standard
HS-7000
device to operate as one or two
Step by Step
Reverse
control loops, modulating the Open or Close pulses, by means of 2 relays, the position of a
motovalve, with or without feedback potentiometer.
Very Important:
Two
Step by Step
control loops can be programmed, where Y1 - Y2 are the outputs of loop 1
and Y3 - Y4 the outputs of loop 2.
CONFIGURATION OF LOOP 1 AS FOR STEP BY STEP CONTROL
●
Assign the output of PID 1 to the digital output DO 1 (relay output slot in Y1 OPEN VALVE).
- Enter in Configuration
[do1] [ConF]
and set the code
37
in the parameter
[P 03] [??37]
●
Assign the output of PID 1 to the digital output DO 2 (relay output in slot Y2 CLOSE
VALVE).
NOTE:
It is not necessary to assign a code to block
[do 2]
[ConF]
of the relay of slot Y2, since
it will be automatically configured when selecting “
positioner
output” in the Open Valve
operating Mode of the
Step by Step
control.
●
OPEN operating Mode Selection
- Select «
positioner
» output giving pulses to Open the valve.
- Enter in Configuration
[do1] [ConF]
and set
2
in the parameter
[P 04] [???2]
●
CLOSE operating Mode Selection.
NOTE:
It is not necessary to configure the function Close Valve since it is automatically
configured when selecting “
positioner
output” in the Open Valve operating Mode of the
Step
by Step
control.
CONFIGURATION OF LOOP 2 AS FOR STEP BY STEP CONTROL
●
Assign the output of PID 2 to the digital output DO 3 (relay output slot in Y3 OPEN VALVE).
- Enter in Configuration
[do3] [ConF]
and set the code
39
in the parameter
[P 03] [??39]
●
Assign the output of PID 2 to the digital output DO 4 (relay output slot in Y4 CLOSE
VALVE).
NOTE:
It is not necessary to assign a code to block
[do 4]
[ConF]
of the relay of slot Y4, since
it will be automatically configured when selecting “
positioner
output” in the Open Valve
operating Mode of the
Step by Step
control.
●
OPEN operating Mode Selection
- Select «
positioner
» output giving pulses to Open the valve.
- Enter in Configuration
[do3] [ConF]
and set
2
in the parameter
[P 04] [???2]
●
CLOSE operating Mode Selection.
NOTE:
It is not necessary to configure the function Close Valve since it is automatically
configured when selecting “
positioner
output” in the Open Valve operating Mode of the
Step
by Step
control.
Содержание HS-7000 Series
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