Contents

Control Sequence
Speed Reference Source Selection
•Speed Reference Source Selection
The speed reference source can be selected using parameter b1-01.
Related Parameters
Parameter
No.
Name
Factory
Setting
Change
during
Operation
V/f
Control Methods
Open
Loop
Vector
b1-01 Frequency reference source selection 0 No Q Q Q
Closed
Loop
Vector
Input the Speed Reference from the Digital Inputs (b1-01=0)
When b1-01 is set to 0 the speed reference can be selected from preset speeds using the digital inputs of the
inverter. Refer to page 5-6, Speed Selection Sequence Using Digital Inputs for details.
Input the Speed Reference Using a Voltage Signal (b1-01=1)
When b1-01 is set to 1 and H3-15 (Input function for A1) is set to 0 (Frequency reference) the speed reference
can be input by the terminal A1 as a 0 to +10V signal. If an analog option card AI-14B is installed, the A1 signal
is replaced by the Channel 1 input of the AI card.
The analog reference signal can be used as well as 1st speed if multispeed operation is selected (Refer to page
5-6, Speed Selection Sequence Using Digital Inputs for details)
5
Input the Speed Reference Using Memobus Communications (b1-01=2)
When b1-01 is set to 2 the speed reference can be input using Memobus communications.
Input the Speed Reference Using an Input Option Card (b1-01=3)
When b1-01 is set to 2 the speed reference can be input using an input option card, for example a field bus
communications card.
5-5