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A) Application Parameters; Traverse Function - Mitsubishi Electric FR-CS84-012 Instruction Manual

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5.10

(A) Application parameters

Purpose
To strengthen or weaken the frequency
at a constant cycle
To perform process control, such as for
the pump flow volume and air volume
To continue operating at analog current
input loss
To restart without stopping the motor at
instantaneous power failure
To decelerate the motor to a stop at
instantaneous power failure

5.10.1 Traverse function

The traverse operation, which oscillates the frequency at a constant cycle, is available.
Pr.
Name
592
Traverse function
A300
selection
593
Maximum
A301
amplitude amount
Amplitude
594
compensation
A302
amount during
deceleration
Amplitude
595
compensation
A303
amount during
acceleration
596
Amplitude
A304
acceleration time
597
Amplitude
A305
deceleration time
• Setting
= "1 or 2" will enable the
Pr.592
• Assigning the Traverse function selection (X37) signal to the input terminal enables the traverse function only when the
X37 signal is ON. (When the X37 signal is not assigned, the traverse function is always available.) To input the X37 signal,
set "37" in any of
Pr.178 to Pr.182 (Input terminal function selection)
Output frequency(Hz)
f1
f0
f1
Pr.7
STF(STR)
ON
signal
X37 signal
Traverse operation
PID control
4 mA input check
Automatic restart after
instantaneous power failure
/ flying start function for
induction motors
Power failure time
deceleration-to-stop
function
Initial value
0
1
0
2
10%
0 to 25%
10%
0 to 50%
10%
0 to 50%
5 s
0.1 to 3600 s
5 s
0.1 to 3600 s
Pr.592 traverse function selection
Traverse operation
f2
f3
t2
t1
(Pr.597)
(Pr.596)
ON
Parameter to set
P.A300 to P.A305
P.A601, P.A602,
P.A610 to P.A615,
P.A621
P.A680, P.A682
P.A702, P.A703,
P.A710, P.F003
P.A730
Setting range
Traverse function invalid
Traverse function valid only in External operation
mode
Traverse function valid regardless of the operation
mode
Level of amplitude during traverse operation
Compensation amount during amplitude inversion
(from acceleration to deceleration)
Compensation amount during amplitude inversion
(from deceleration to acceleration)
Time period of acceleration during traverse operation
Time period of deceleration during traverse operation
.
to assign the function.
f0: set frequency
f1: amplitude amount from the set frequency
(f0 × Pr.593/100)
Pr.7
f2: compensation amount at transition from
acceleration to deceleration
(f1 × Pr.594/100)
f3: compensation amount at transition from
Pr.8
deceleration to acceleration
(f1 × Pr.595/100)
t1: time from acceleration during traverse
operation (Time from (f0 − f1) to (f0 + f1))
Time(s)
(Pr.596)
t2: time from deceleration during traverse
operation (Time from (f0 + f1) to (f0 − f1))
(Pr.597)
Refer to
page
Pr.592 to Pr.597
151
Pr.127 to Pr.134, Pr.575
152
Pr.573, Pr.778
139
Pr.57, Pr.58, Pr.165,
159
Pr.611
Pr.261
160
Description
5. PARAMETERS
5.10 (A) Application parameters
2
2
3
4
5
6
7
8
9
10
151

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