DART Controls DP4 CONTROL Serie Manual De Instrucciones página 15

Parameter 22 – Display Value at Center Output
This defi nes the center value for the display in bipolar (or bidirectional) modes of operation. In
bipolar applications, this value should be set to the display value that corresponds to a null or
zero output. When in Running Mode, display values above this will produce an output toward
the programmed Maximum Output %; whereas, display values below this will produce an output
toward the programmed Minimum Output %. As the display value approaches the number
programmed in this parameter, the DP4 will produce an output that approaches the percentage
programmed in parameter 28. See parameters 25 - 27 and the application examples for additional
information.
Parameter 25 – Minimum Output % (in 1/10 percent units)
This parameter sets the output percentage which corresponds to the minimum display value,
parameter 20. This parameter has a range of 0 to 1000 which represents 0.0 to +100.0 percent
of output. When the user is adjusting the display value towards the programmed minimum
display, the output will linearly approach the value of this parameter. For example, setting this
parameter to 25 will confi gure the DP4 to output 2.5% when the user adjusts the display value
to equal the display minimum, parameter 20. Setting this minimum percentage higher than the
maximum (parameter 26) will cause the polarity of the output to be inverted. See parameters
20 - 22 and the application examples for additional information.
Parameter 26 – Maximum Output % (in 1/10 percent units)
This parameter sets the output percentage which corresponds to the maximum display value,
parameter 21. This parameter has a range of 0 to 1000 which represents 0.0 to +100.0 percent
of output. When the user is adjusting the display value towards the programmed maximum
display, the output will linearly approach the value of this parameter. For example, setting this
parameter to 850 will confi gure the DP4 to output 85.0% when the user adjusts the display value
to equal the display maximum, parameter 21. Setting this maximum percentage higher than the
minimum (parameter 25) will cause the polarity of the output to be inverted. See parameters
20 - 22 and the application examples for additional information.
Parameter 27 – Center Output % (in 1/10 percent units)
This defi nes the center percentage for the output in bipolar (or bidirectional) modes of operation.
In bipolar applications, this value should be set to the percentage of output that corresponds
to a null or zero output of the partner drive. When in Running Mode, display values above the
display center (parameter 22) will produce an output toward the programmed Maximum Output
%; whereas, display values below the display center (parameter 22) will produce an output toward
the programmed Minimum Output %. As the display value approaches the programmed display
center value (parameter 22), the DP4 will produce an output that approaches the percentage
programmed in this parameter. See parameters 20 - 22 and the application examples for
additional information.
Parameter 28 – Output Deadband % (in 1/10 percent units)
This defi nes the width of the output's deadband. This is the range of output percentage values
which will produce a zero or center output percentage in unipolar and bipolar modes respectively.
This value is the width of the range in percentage units. For example: If the DP4 were confi gured
for bipolar operation and this parameter were set to 50, then any output which was within 5%
of the center output percentage would be forced to the center output value. See parameters
20 - 22 and the application examples for additional information.
Parameter 30 – Signal Input 1 (S1) Confi guration
This parameter determines the operating mode of signal input 1 (S1).
Mode 1: Output 0% When S1 Low
When the S1 input is at an electrically low state or wired to the unit's common, the DP4
will force its output to 0%. Once the S1 input returns to an electrically high (+5V) state or
allowed to fl oat disconnected, the output will once again correspond to the display value.
Mode 2: Output 0% When S1 High
When the S1 input is at an electrically high (+5V) state or allowed to fl oat disconnected,
the DP4 will force its output to 0%. Once the S1 input returns to an electrically low state
or wired to the unit's common, the output will once again correspond to the display value.
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