43
Main speed setting
3.9 Main speed setting
3.9.1
Input method of main speed command (Pr. 732)
Setting of main speed is same as the setting at normal operation.
• Main speed changes by the priorities of above operation modes. (JOG signal > X83 signal > multi-speed setting > X14
signal > analog input)
However, the input method selected for line speed is not available for main speed command.
• Dancer control is not disabled with input of multi-speed.
However,
dancer control/winding diameter compensation function is disabled by the input of Jog operation
(JOG signal)
.
• Main rotation speed selection is only enabled when
Pr. 128
= "40 or 41".
• Terminal 4 input compensation is enabled when
Pr. 785
= "1".
• The terminal 1 is used for frequency compensation inputs during normal operation. To use analog inputs for the
normal operation, which is often switched over to the dancer control operation, disable the function of the terminal 1
by setting "9999 (no function)" in
Pr. 868 Terminal 1 function assignment
.
• To switch between dancer control operation and normal operation during operation,
leave 20ms or more for the
initialization of dancer control/winding diameter compensation as shown in the following chart.
Pr.732
Input terminal
Remarks
0 (initial value)
Follows the frequency command
1
Terminal JOG Single-phase pulse train input
Pr. 291
must be set.
2
FR-A7AP/FR-A7AL Encoder pulse train input
3
Terminal 2 (0 to 100%)
Calibrated with
Pr. 125
and
C2 to C4
4
Terminal 4 (0 to 100%)
Calibrated with
Pr. 126
and
C5 to C7
5
Terminal 1(-100 to 100%)
Calibrated with
Pr. 125
and
C2 to C4
6
FR-A7AZ Terminal 6(-100 to 100%)
Calibrated with
C30 to C33
7
FR-A7AL Single-phase pulse train input
Operation mode
Rotation speed selection
External operation
Pulse train input
Terminal JOG (single-phase pulse train input) + terminal 4 (compensation)
Digital input
FR-A7AX (digital input) + terminal 4 (compensation)
Multi-speed + terminal 4 (compensation)
Analog input (terminal 2 + terminal 4 (compensation))
External/PU combined operation
(mode 1)
Multi-speed + terminal 4 (compensation)
PU operation (frequency) + terminal 4 (compensation)
PU/external combined operation
(mode 2)
Pulse train input
Terminal JOG (single-phase pulse train input) + terminal 4 (compensation)
Digital input
FR-A7AX (digital input) + terminal 4 (compensation)
Multi-speed + terminal 4 (compensation)
Analog input (terminal 2 + terminal 4 (compensation))
Network operation
(
Pr. 339 =
"0" network)
Network operation (terminal) + terminal 4 (compensation)
Network operation (rotation speed setting) + terminal 4 (compensation)
Network operation
(
Pr. 339
= "1" external)
Pulse train input
Terminal JOG (single-phase pulse train input) + terminal 4 (compensation)
Digital input
FR-A7AX (digital input) + terminal 4 (compensation)
Multi-speed + terminal 4 (compensation)
Analog input (terminal 2 + terminal 4 (compensation))
PU operation
PU operation (frequency) + terminal 4 (compensation)
Dancer/tension
control selection (X83)
Start signal
(STF/STR)
20ms
Inverter running
(RUN)
20ms
ON
ON
ON
Output frequency
Normal control
Dancer control
Normal control