Instruction manual

6. Programming Features
149
Note: 1. The frequency reference constants and monitor display data for
which this selection of the unit is valid are stored in the Inverter in
units of Hz.
The units are converted as shown below:
2. The upper limit for each unit is the value with decimal places below
the significant digits truncated.
Example: Where the upper limit for the unit Hz is as follows for
60.00 Hz and n035 = 39:
120
× 60.00 Hz ÷ 39 = 184.6, thus 184 min
-1
is displayed as the upper
limit.
For displays other than for the upper limit, the decimal places below
the significant digits are rounded off.
3. When verifying constants for the copy function, frequency reference
constants (units of Hz) are used.
 Selecting Processing for Frequency Reference
Loss (n064)
Use this setting to select the processing performed if the level of the fre-
quency reference signal from the control circuit terminals suddenly
drops.
* Detected in REMOTE mode (drive mode) when analog reference (except
potentiometer on Digital Operator) or pulse train reference is selected in the
Frequency Reference Selection (n004).
Processing Method When 1 is Selected
If the level of the frequency reference signal drops by 90 % within 400
ms, operation continues at 80 % of the signal level before the level drop.
n064
Setting
Description
0 Processing for frequency reference loss disabled.
1* Processing for frequency reference loss enabled.
Setting/Display
Constant n035
Frequency reference constants
Data for monitor display
Display
Setting
Each unit
system
Units of Hz