Rockwell Automation 1305 AC Drive, Firmware 1.01-3.00 User Manual - Manual (Page 100)

Chapter 5 – Programming
5-32
Feature Select Group (cont.)
[Balance Freq] Parameter # 80 Factory Default 0 Hz [Balance Freq]
Parameter Type Read & Write Minimum 0 Hz
This parameter selects the frequency at which balance
detection is performed. Units 1 Hertz Maximum 255 Hz
[Balance Time] Parameter # 79 Factory Default 0 Sec [Balance Time]
Parameter Type Read & Write Minimum 0 Sec
This parameter determines the amount of delay time
before a valid output occurs. The delay time begins when
the drive reaches [Balance Freq]. The output contact will
be closed when balanced and open when unbalanced. Units 0.1 second Maximum 255 Sec
[Balance Angle] Parameter # 78 Factory Default 0 [Balance Angle]
Parameter Type Read & Write Minimum 0
This parameter determines the acceptable variation in
phase angle which is set between a balanced condition
and an unbalanced condition. A balance condition is
defined as a variation which is less than the ‘Balance
Angle’ setting. [Output 1 Config] or [Output 2 Config]
can be set to ‘‘Balance” to indicate when a balanced
condition exists. Maximum 255
Figure 5.18 Motor Unbalance
Phase Angle
V
ariation
0
255
[Balance Angle]
Detection Window
–.5 Hz +1.0 Hz
[Balance Freq]
y