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378
Special operation and frequency control
4.25.5 Frequency setting by pulse train input (Pr. 291, Pr. 384 to Pr. 386)
(1) Pulse train input selection (Pr. 291)
· Setting any of "1, 11, 21, 100" in Pr. 291 Pulse train I/O selection and a value other than "0" in Pr. 384 Input pulse division
scaling factor switches terminal JOG to pulse train input terminal and frequency setting of the inverter can be
performed. (The initial value is JOG signal)
Pulse train input of maximum of 100k pulse/s is enabled.
The inverter speed can be set by inputting pulse train from terminal JOG.
In addition, synchronous speed operation of inverters can be performed by combining pulse train I/O.
Parameter
Number
Name
Initial
Value
Setting
Range
Description
291 Pulse train I/O selection 0
Pulse train input Pulse train output
0 Terminal JOG FM output
1 Pulse train input FM output
10 Terminal JOG High speed pulse train output (50%Duty)
11 Pulse train input High speed pulse train output (50%Duty)
20 Terminal JOG
High speed pulse train output (ON width is
always same)
21 Pulse train input
High speed pulse train output (ON width is
always same)
100 Pulse train input
High speed pulse train output (ON width is
always same)
The inverter outputs the signal input as
pulse train as it
384
Input pulse division
scaling factor
0
0 Pulse train input invalid
1 to 250
Indicates division scaling factor to the input pulse and the
frequency resolution to the input pulse changes according to
the value.
385
Frequency for zero input
pulse
0Hz 0 to 400Hz Set the frequency when the input pulse is 0 (bias).
386
Frequency for maximum
input pulse
60Hz 0 to 400Hz Set the frequency when the input pulse is maximum (gain).
JOG
PC
SD
Sink logic
Inverter
Pull up resistance
*
2kΩ
Connection with an open collector output system
pulse generator
JOG
PC
SD
Sink logic
Inverter
2kΩ
Connection with a complementary output system
pulse generator
24V power
JOG
PC
SD
Source logic
Inverter
Pull down resistance
*
2kΩ
Connection with an open collector output system
pulse generator
Source logic
Connection with a complementary output system
pulse generator
24V power
JOG
PC
SD
Inverter
2kΩ