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IronHorse GSDA-DP-D DC Drives Accessory User Manual – 1st Ed. Rev. A – 11/11/2019
Parameter
Parameter Name
Description
12
Display Mode
This Parameter selects what the GSDA-DP-D will show on its display during
Run Mode. Note that it can “toggle” between whatever the Display Mode is set
to and its “opposite” by briefly pressing and releasing the ENTER button. For
example, if this Parameter is set to 1 (Target Speed/Time), pressing the ENTER
button will briefly show the Actual (Tach) Display (and illuminate the “Tach”
LED Annunciator). Conversely, if this Parameter is set to 2 or 3 (Main Tach or
Leader Tach, respectively), pressing the ENTER button will briefly show the
Target Speed/Time.
The following Display Modes are available for the GSDA-DP-D:
• Mode 1 – Target Speed/Time Display
In Rate Mode, the GSDA-DP-D displays the Target Speed in user-defined
rate Engineering Units such as RPM, Gallons per Hour, or Feet per Second. In
Time Mode, the GSDA-DP-D displays the Target Time in time units using the
format AA:BB. In Follower Mode, the GSDA-DP-D displays the Target Speed
in percentage units, where 1000 equals 100.0 percent of the Master rate.
• Mode 2 – S1 (Main Pickup) Actual Speed (Tach) Display
In Rate Mode, the GSDA-DP-D displays the Actual Speed in user-defined
rate Engineering Units such as RPM, Gallons per Hour, or Feet per Second. In
Time Mode, the GSDA-DP-D displays the Actual Time in time units using the
format AA:BB. In Follower Mode, the GSDA-DP-D displays the Actual Speed
in percentage units, where 1000 equals 100.0 percent of the Master rate.
• Mode 3 – S2 (Leader) Actual Speed (Tach) Display
Mainly useful for diagnosing and setup of Master-Follower applications,
selecting this Mode shows the Leader Speed (on the S2 Input) in RPM Units
(only).
13
Decimal Point (DP) Position (used in
Rate and Follower Modes Only)
This selects the format of the display with respect to the decimal point’s
position. This Parameter does not effect the value entry for other Parameters.
For example, if the user desires to display 10.00 at 300RPM, then Parameter
30 would be set to 1000, Parameter 31 would be set to 300, and Parameter 13
would be set to 2.
• Mode 0: Fixed XXXX
• Mode 1: Fixed X.XXX
• Mode 2: Fixed XX.XX
• Mode 3: Fixed XXX.X
• Mode 4: Fixed XXXX.
14
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 15.
• 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 15.
15
Keypad Scroll Delay
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 14 for more details.
16
Power-up Target Speed
This Parameter determines the default Running Value when power is initially
applied to the GSDA-DP-D-240-10x.
• Mode 1: Default to Zero
When in this mode, the unit will default to zero (engineering units).
• Mode 2: Default to Power-Up Value
When in this mode, the unit will default to the Power-up Value, Parameter
17.
• 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.
