D-106 Parameter Reference
AC30V series Variable Speed Drive
Spd Direct Input
Parameters::Motor Control::Spd Direct Input
Only apply to SVC control mode, IM or PMAC.
PNO Parameter Descriptions
0528 Direct Input Select
The direct input to the speed loop is an analog input which is sampled synchronously with the speed loop. This ensures that the
speed loop always has the most up-to-date value of the input, allowing it to respond faster. Either of the two analog inputs can be
selected as the direct input. If NONE is selected, the input is set to zero. When not in use, it should be disabled by selecting NONE.
Enumerated Value : Direct IP Select
0 : NONE
1 : ANIN1
2 : ANIN2
0529 Direct Input Ratio
The Direct Input is multiplied by this parameter.
0530 Direct Input Pos Lim
This limits the upper value of the Direct Input.
0531 Direct Input Neg Lim
This limits the lower value of the Direct Input.
Functional Description
The Drive is commanded to run the motor at a certain speed, which is derived from various sources, such as comms, analog inputs, commands
from the keypad, etc. Most of these are derived from sources which respond relatively slowly, eg every 1ms. For processes which require a
faster response, the direct input is provided. This is an analog input which is sampled synchronously with the speed loop, as described above. It
is added on to the other sources of speed command to give a total speed command.
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