Yaskawa AI-030 - Manual (Page 3)

Yaskawa Electric America, Inc. – www.drives.com
IG.V7.70, Page 3 of 3
Date: 02/20/05, Rev: 05-02
Auxiliary Analog Input Option Connector
AI-030
Frequency Reference Bias (n077 = 3) Output Voltage Bias (n077 = 4)
The frequency reference bias (FBIAS) is
added to the frequency reference.
The reference is also manipulated by the
internal frequency reference gain (n060 for
terminal FR or n074 for terminal RP) and
frequency reference bias (n061 for terminal
FR or n075 for terminal RP). All 3 functions
are used to calculate the final speed
reference from terminals FR and RP. The output voltage bias (VBIAS) is added to
voltage reference after the V/f pattern. This
function should be used with caution as
increasing or decreasing the motor voltage
can cause excessive current draw, motor
over-heating, motor stalling, etc.