DART Controls DP4 Control Series Instruction Manual page 14

Parameter 13 – Decimal Point (DP) Position
This selects the format of the display with respect to the decimal point's position. This parameter
does not affect the value entry for other parameters. The decimal point is only displayed in Rate
modes. For example, if the user desires to display numbers such as 12.34 or 1.05, then parameter
13 should be set to 2.
Mode 0: Fixed XXXX (DP disabled)
Mode 1: Fixed X.XXX
Mode 2: Fixed XX.XX
Mode 3: Fixed XXX.X
Mode 4: Fixed XXXX.
Parameter 15 – Keypad Mode
This parameter selects the operating mode of the front-panel push buttons. In some applications,
increasing or decreasing the scroll rate provides the user more controllability when entering settings.
Parameters 14 and 15 affect only the Up and Down buttons when the user interface is in Running Mode.
These settings also apply to remote Up / Down buttons which are attached via the -1 option board.
Mode 1: Linear, Constant Rate
In linear mode, pressing and holding the Up or Down buttons will cause the display to continuously
change value in the requested direction until either the Display Minimum or Display Maximum is
reached. The displayed value will scroll at a constant rate which is specified using parameter 16.
Mode 2: Non-linear, Accelerating Rate
In non-linear mode, pressing and holding the Up or Down buttons will cause the display to
continuously change value in the requested direction until either the Display Minimum or Display
Maximum is reached. The displayed value will initially scroll at a slow rate and increase in speed
until the maximum scroll rate is achieved. The initial scroll rate is specified using parameter 16.
Parameter 16 – Keypad Scroll Mode
This parameter sets the scroll speed for the front-panel push buttons. The function of this parameter
varies slightly depending on the Keypad Mode. See parameter 15 for more details.
Parameter 18 – Power-Up Mode
This parameter defines the mode which determines the default Running Value when power is initially
applied to the DP4.
Mode 1: Default to Zero
When in this mode, the unit will default to zero (display units).
Mode 2: Default to Power-Up Value
When in this mode, the unit will default to the Power-up Value, parameter 19.
Mode 3: Default to Previously Running Value
When in this mode, the unit will default to the previous running value before power was removed.
A previous running value must have been active for at least 3 seconds to be recalled after power
has been disconnected and reapplied.
Parameter 19 – Power-Up Value
When Power-up Mode is set to 2, this parameter will designate the default display value at power-up
in display units.
Parameter 20 – Display Value at Minimum Output
This parameter defines the lower end of the display range. This is the value which limits how low
the user is able to scroll the displayed value in Running Mode. In Rate and Time modes, this value
is set in display units. This parameter is set without consideration for the decimal point's position.
For example, setting this parameter to 125 would set the lower display limit at 12.5, 0.125, or 125
seconds according to the other configuration parameters.
Parameter 21 – Display Value at Maximum Output
This parameter defines the upper end of the display range. This is the value which limits how high
the user is able to scroll the displayed value in Running Mode. In Rate and Time modes, this value is
set in display units. This parameter is set without consideration for the decimal point's position. For
example, setting this parameter to 1000 would set the upper display limit at 100.0, 1.000, or 1000
seconds according to the other configuration parameters.
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