Parameter Reference  D-59   
AC30V series Variable Speed Drive 
Minimum Speed 
Setup::Application::Minimum Speed 
 
Function availability depends on macro selected. 
The minimum speed function is used to determine how the AC30V will follow a reference.  There are two modes: 
 
 
Functional Description 
There are two operating modes for the MINIMUM SPEED function: 
PROP WITH MINIMUM (proportional with minimum) 
In this mode the MINIMUM SPEED function behaves like a simple clamp. The Minimum Speed 
Value has the valid range -100% to 100% and the output is always greater than or equal to the 
Minimum Speed Value. 
 
LINEAR 
In this mode the MINIMUM SPEED function first clamps the input to zero then rescales the input such 
that the output goes linearly between minimum and 100% for an input that goes from 0 to 100%. 
 
Note the constraints:- 
 min >= 0 
 input >= 0 
 max = 100% 
PNO  Parameter Descriptions 
1906  Minimum Speed Value 
Specifies the minimum output value. 
1907  Minimum Speed Mode 
There are two modes of operation: 
Enumerated Value: 
  0 : PROP WITH MINIMUM 
  1 : LINEAR 
Min  
0  100% 
100 
-100
 
input 
output