Chapter 5 Parameters_VFD-B Series 
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Revision 10/2005, BE13, SW V4.08 
02 - 09 
aAccel/Decel Rate of Change of UP/DOWN Operation with Constant 
Speed 
Unit: 0.01
  Settings  0.01~1.00 Hz/ms    Factory Setting: 0.01
These parameters determine the increase/decrease of the master frequency when operated via the Multi-
Function Inputs when Pr.04-04~Pr.04-09 are set to 11 (Up command) or 12 (Down command). 
 
02 - 15 
aKeyboard Frequency Command  Unit: 0.01
  Settings  0.00 ~ 400.00Hz    Factory Setting: 60.00
This parameter can be used to set frequency command or read keypad frequency command.