3-21
(22)
LCD Digital Operator Display Unit (Cn-28)
•
It sets the units to be displayed for the frequency command and frequency
monitoring. and sets the decimal points of PID feedback display (Un-34), PID
feedback display at 0% and 100% (Bn-45, 46) as described below:
Table 9
LCD digital Operator Display unit
Setting / Reading Content
Cn-28
Frequency command/monitoring
PID Feedback
0
Units of 0.01 Hz
1
Units of 0.01%
2 to 39
Set in the units of r / min (0 to 39999).
r / min = 120 x frequency reference (Hz) /
Cn-28
(Set the number of motor poles in Cn-28,
only even data is allowed
)
Displayed as XXXX
Unit specified by Sn-70
40 to
39999
The position of decimal point is set by the
value of the 5th digit of Cn-20.
5th digit = 0: Displayed as XXXX
5th digit = 1: Displayed as XXX.X
5th digit = 2: Displayed as XX.XX
5th digit = 3: Displayed as X.XXX
The 1st digit to 4th digits of
Cn-28
set the
value of 100% frequency.
y
5th digit = 0:
Displayed as XXXX
y
5th digit = 1:
Displayed as XXX.X
y
5th digit = 2:
Displayed as XX.XX
y
5th digit = 3:
displayed as X.XXX
The 1
st
digit to 4
th
digits of Cn-28 are not
used.
Unit specified by Sn-70
•
Example 1:
When the set value of 100% speed is 200.0, Cn-28 = 12000 is set.
60% speed is displayed as 120.0 at Cn-28 = 12000.
•
Example 2:
When the set value of 100% speed is 65.00, Cn-28 = 26500 is set.
60% speed is displayed as 39.00 at Cn-28 = 26500.