Motor frequency setpoint
SmartDrive provides several ways to set up and modify the frequency setpoint.
The embedded HMI, the SmartDrive App, the analog inputs, the preset speed, the remote control from the Ethernet connection.
Set the frequency setpoint from the Clean Power VFD analog input.⚓
Analog inputs from AI1 to AI3 can be assigned to be the frequency setpoint input. By default the analog input AI1 is the frequency setpoint.
Analog signal can be set by software to be either a potentiometer input, a 4 to 20 mA input, or a 0 to 10 VDC input. By default the analog input AI1 is set as a potentiometer input.
A +10V voltage output on the control terminal is used as the reference value.
From the SmartDrive app, the user can define the conversion scale from the analog signal to the frequency by defining the minimum and maximum frequencies.
Any value change on this input will be read instantaneously by the Clean Power VFD and becomes the reference setpoint. The Frequency output will vary immediately from the actual speed to the new speed defined by the setpoint. This change happens with neither an acceleration ramp nor a deceleration ramp.
Change of the setpoint value from the analog input is displayed on the Clean Power VFD's HMI.
TipIf the motor speed does not reach the set value⚓
If the motor speed does not reach the set value, check the most common following causes:
The magnitude of the analog input differs from the Clean Power VFD input scale. Check the voltage across the analog input terminals.
The scale of the analog input is not set accordingly to the user's application. Check the minimum and maximum frequencies assigned to the minimum and maximum analog input values.