Mitsubishi Electric FR-E800, Инструкция по эксплуатации

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15. (A) Application Parameters
15.3 Traverse function
15.3
Traverse function
The traverse operation, which oscillates the frequency at a constant cycle, is available.
• Setting Pr.592 Traverse function selection = "1 or 2" enables the traverse function.
• 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 parameter from
Pr.178 to Pr.189 (Input terminal function selection) to assign the function to a terminal.
• The motor accelerates to the set frequency f0 according to the normal Pr.7 Acceleration time at turn ON of the start
command (STF or STR).
• When the output frequency reaches f0 and the X37 signal turns ON, the inverter begins traverse operation and accelerates
to f0 + f1. The acceleration time at this time is according to the Pr.596 setting. (If the X37 signal turns ON before the output
frequency reaches f0, traverse operation begins after the output frequency reaches f0.)
• After the inverter accelerates the motor to f0 + f1, this is compensated with f2 (f1 × Pr.594 ), and the motor decelerates to
f0 - f1. The deceleration time at this time is according to the Pr.597 setting.
• After the inverter decelerates the motor to f0 - f1, this is compensated with f3 (f1 × Pr.595 ), and the motor accelerates again
to f0 + f1.
• When the X37 signal turns OFF during traverse operation, the inverter accelerates/decelerates the motor to f0 according
to the normal acceleration/deceleration time ( Pr.7, Pr.8 ). If the start command (STF or STR) is turned OFF during traverse
operation, the inverter decelerates the motor to a stop according to the normal deceleration time ( Pr.8 ).
Pr. Name Initial value Setting range Description
592
A300 Traverse function
selection
0
0 Traverse function invalid
1
Traverse function valid only in External operation
mode
2
Traverse function valid regardless of the operation
mode
593
A301 Maximum amplitude
amount
10% 0% to 25% Level of amplitude during traverse operation
594
A302
Amplitude
compensation amount
during deceleration
10% 0% to 50%
Compensation amount during amplitude inversion
(from acceleration to deceleration)
595
A303
Amplitude
compensation amount
during acceleration
10% 0% to 50%
Compensation amount during amplitude inversion
(from deceleration to acceleration)
596
A304 Amplitude acceleration
time
5 s 0.1 to 3600 s
Time period of acceleration during traverse
operation
597
A305 Amplitude deceleration
time
5 s 0.1 to 3600 s
Time period of deceleration during traverse
operation
f0
Output frequency(Hz)
Time(s)
f1
f1
t1
( Pr.596 )
f2
f3
Pr.7
Pr.8
Pr.7
STF(STR)
signal
X37 signal
ON
ON
Traverse operation
t2
( Pr.597 )
f0: set frequency
f1: amplitude amount from the set frequency
(f0
×
Pr.593 /100)
f2: compensation amount at transition from
acceleration to deceleration
(f1
×
Pr.594 /100)
f3: compensation amount at transition from
deceleration to acceleration
(f1
×
Pr.595 /100)
t1: time from acceleration during traverse
operation (Time from (f0
−
f1) to (f0 + f1))
( Pr.596 )
t2: time from deceleration during traverse
operation (Time from (f0 + f1) to (f0
−
f1))
( Pr.597 )