Frequency Reference; Selecting The Frequency Reference Source - YASKAWA Varispeed E7 Instruction Manual And Parameter Description

Frequency Reference

This section explains how to input the frequency reference.

Selecting the Frequency Reference Source

Set constant b1-01 to select the frequency reference source.
Related Constants
Con-
stant Name
Number
b1-01 Reference selection
Input the Frequency Reference from the Digital Operator
When b1-01 is set to 0, you can input the frequency reference from the Digital Operator.
For details on setting the frequency reference, refer to
Inputting the Frequency Reference Using Voltage (Analog Setting)
When b1-01 is set to 1, you can input the frequency reference from control circuit terminal A1 (voltage input),
or control circuit terminal A2 (voltage or current input).
Inputting Master Speed Frequency Reference Only
If inputting the master speed frequency reference only, input the voltage reference to control circuit terminal
A1.
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Description
Set the frequency reference source
0: Digital Operator
1: Control circuit terminal (analog input)
2: MEMOBUS communications
3: Option Card
Fig 6.2 Frequency Setting Display
2 kΩ
+V (Power supply: 15 V, 20 mA)
2 kΩ
A1 (Master frequency reference)
A2 (Auxiliary frequency reference)
AC (Analog common)
Fig 6.3 Master Speed Frequency Reference Input
Setting
Range
0 to 3
Chapter 3 Digital Operator and
Inverter

Frequency Reference

Change
Factory during Access
Setting Opera- Level
tion
1 No Q
Modes.
5
6-