N700E INSTRUCTION MANUAL
5-25
Frequency Arrival Signal [FA1]/[FA2]
Frequency Arrival [FA1] and [FA2] signals indicate when the output frequency accelerates or decelerates to
arrive at a constant frequency.Refer to the figure below.
Frequency Arrival [FA1](upper graph) turns on when the output frequency gets within 0.5Hz below or 1.5Hz
above the target constant frequency.
The timing is modified by a small 60ms delay. Note the active low nature of the signal, due to the
relay output.
Frequency Arrival [FA2] (lower graph) uses thresholds for acceleration and deceleration to provide more
timing flexibility than [FA1].
Parameter C22 sets the arrival frequency threshold for acceleration, and parameter C23 sets the thresholds
for deceleration.
This signal also is active low and has a 60ms delay after the frequency thresholds are crossed.
Option
Code
Terminal
Symbol
Function Name
Input
State
Description
1
FA1
Frequencyarrival
type 1signal
ON
when output to motor is at the set frequency
OFF
when output to motor is off, or in any acceleration
or deceleration ramp
2
FA2
Frequency arrival
type 2 signal
ON
when output to motor is at or above the
set frequency the holds for, even if in acceleration
or deceleration ramps
OFF
when output to motor is off, or during acceleration
or deceleration before the respective thresholds
are crossed
Valid for inputs:
C13, C14, C15, C16, C17, C22,
C23
Required setting
(none)
Notes:
•At the time of acceleration, an arrival signal at
a frequency between the set frequency
-0.5Hz to +1.5Hz is turned on.
•At the time of deceleration, an arrival signal at
a frequency between the set frequency
+0.5Hz to -1.5Hz is turned on.
•The delay time of the output signal is 60m
(nominal).
•Output terminal RN0-RN1 is a relay contact a.
In case of contact b, setup C16.
•Output terminal RN1-RN2 is a relay contact a.
In case of contact b, setup C17.
