Dancer feedback speed control details
63
3
Line speed command input according to the priority of the speed
command sources (Pr.361 = "0")
• The line speed is determined according to the frequency command.
• The priorities of the line speed commands are defined as follows:
Multi-speed setting signal (RL/RM/RH/REX signal) > single-phase pulse train input (terminal JOG) > digital command input
(FR-A8AX) > analog input (terminals 1, 2, 4)
• When the line speed command is input according to the multi-speed operation, set the line speed command values in
Pr.1265 to Pr.1279
.
• When
Pr.361
= "0", the following calibration parameters are used for calibrating the line speed command according to the
input method.
NOTE
• For the frequency command input method, refer to the Instruction Manual (Detailed) of the FR-A800 inverter.
Line speed command input by pulse train input (Pr.361 = "1, 2, 7")
• The line speed can be commanded using single phase pulse train input through terminal JOG, encoder pulse train input
through FR-A8AP/FR-A8AL/FR-A8TP, or pulse train input through FR-A8AL (PP, NP).
• The number of pulses is calculated internally as follows.
∗1
To perform Vector control, install the Vector control compatible option.
• When the single-phase pulse train input using the FR-A8AL is selected, the command pulse train type can be switched by
changing the setting of
Pr.428 Command pulse selection
as shown in the following table. The number of pulses is
recognized as an absolute value regardless of the polarity setting.
Input method
Calibration parameter
Analog terminal input
Pr.350 to Pr.353
Terminal JOG single-phase pulse train input
Pr.351, Pr.353 to Pr.355
Digital input through the FR-A8AX
Pr.351, Pr.353, Pr.356, Pr.357
Pr.361 setting
Pulse train input
Number of pulses calculated internally
1
Terminal JOG single-phase pulse train input
Number of input pulses/
Pr.384
setting
2
FR-A8AP/FR-A8AL/FR-A8TP encoder pulse input
Time-averaged number of input pulses using
Pr.1245
Sampling time for winding diameter calculation
. (When
Pr.1245
= "9999", the sampling time is fixed to about 5 ms.)
7
Single-phase pulse train input through FR-A8AL (PP,
NP)
Command pulse train type
During forward rotation
During reverse rotation
Setting of Pr.428
Negative
logic
Forward pulse train
Reverse pulse train
0 (initial value)
Pulse train + sign
1
A phase pulse train
B phase pulse train
2
Positive
logic
Forward pulse train
Reverse pulse train
3
Pulse train + sign
4
A phase pulse train
B phase pulse train
5
Time
Speed 8
Speed 9
Speed 10
Speed 11
Speed 12
Speed 13
Speed 14
Speed 15
ON
ON
ON ON ON ON ON ON
ON
ON
ON
ON
ON ON
ON ON
ON ON ON ON
REX
Line speed command (m/min)
ON
ON
ON
ON
ON
ON
ON
Speed 4
Speed 5
Speed 6
Speed 7
ON
ON
ON
ON
Speed 1
(High speed)
Speed 2
(Middle speed)
Speed 3
(Low speed)
RH
RM
RL
PP
NP
PP
NP
H
L
PP
NP
PP
NP
PP
NP
H
L
PP
NP
Содержание A800 Plus Series
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