User guide

Configuring an Application www.controltechniques.com 71
menu parameter that will control the Analog Output. The
parameter is entered in the format of MM.PP where MM is
the Menu number, and PP is the Parameter number. The
range for this parameter is 0.00 to 21.51. For more
information on the Unidrive SP parameter set, please refer
to the Unidrive SP User Guide or Unidrive SP Advanced
User Guide.
Maximum Value
This defines the Maximum Value of the Source parameter
that will yield the corresponding Maximum Output for the
Analog Output. The source parameter may be greater than
this maximum value, however the Max Value and Max
Output are used together to define a single point on the
curve used for linear interpolation.
Maximum Output
In order to scale the Analog Output value into the proper
scale and units for the selected Module Variable, the user
must define the maximum scale value and the minimum
scale value. The SM-EZMotion module then uses linear
interpolation to determine the value to be sent to the analog
output.
The Maximum Output is the value that will be sent to the
Analog Output when the Module Variable is equal to the
Maximum Value.
Example:
If the Maximum Value is set to 5000, and the Maximum
Output is set to 100%, the Analog Output will be at full
scale when the selected Module Parameter is equal to
5000.
Minimum Value
This defines the Minimum Value of the Source parameter
that will yield the corresponding Minimum Output for the
Analog Output. The source parameter may be less than
this minimum value, however the Min Value and Min
Output are used together to define a single point on the
curve used for linear interpolation.
Minimum Output
In order to scale the Analog Output value into the proper
scale and units for the selected Module Variable, the user
must define the maximum scale value and the minimum
scale value. The SM-EZMotion module then uses linear
interpolation to determine the value to be sent to the analog
output.The Minimum Output is the value that will be sent to
the Analog Output when the Module Variable is equal to
the Minimum Value.
Example:
If the Minimum Value is set to -5000, and the Minimum
Output is set to 15%, the Analog Output will be at 15% of
full scale when the selected Module Parameter is equal to
-5000.
Scale
The Scale parameter is only available once the user has
selected User Defined SP Menu from the Source list box.
This parameter allows the user to enter a scaling factor that
is multiplied with the value of the Menu parameter to
determine the output value. The formula to determine the
actual output is as follows:
Output Mode
The Analog Outputs on the Unidrive SP support four
different modes of operation to provide a very flexible
solution to nearly any application. The four modes of
operation are described below.
1. 0 –20 mA Mode – In this mode, the analog
output channel will send out a current signal
ranging from 0 mAmps (minimum scale) to 20
mAmps (full scale).
2. 4-20 mA Mode – In this mode, the analog
output channel will send out a current signal
ranging from 4 mAmps (minimum scale) to 20
mAmps (full scale).
3. High Speed Mode – In this mode, the analog
output channel will send out a voltage signal
ranging from 0 Volts (minimum scale) to 9.8
Volts (full scale). The user scaling parameters
are ignored when High Speed Mode is
selected, and the scaling is as follows:
For more information on the High Speed Mode scaling,
please refer to the Unidrive SP Advanced User Guide.
4. Voltage Mode – In this mode, the Analog
Output channel will send out a voltage signal
ranging from 0 Volts (minimum scale) to 10.0
Volts (full scale).
Analog Output – Channel 2
See Analog Output – Channel 1.
7.5 Define Motion Profiles
Output Source Hard Coded Scaling
3.02 – Speed
9.8V = Speed_Freq_Max
4.02 - Active Current 9.8V = Rated Drive Current / 0.45
4.17 – Magnetizing Current 9.8V = Rated Drive Current / 0.45
5.03 – Output Power
9.8V when:
Active Current = Rated Drive Current / 0.45
Voltage in phase with the active current =
DC_VOLTAGE_MAX