Frequency Setting By Pulse Train Input (Pr. 291, Pr. 384 To Pr. 386) - Mitsubishi Electric FR-A720-0.4K Instruction Manual

Special operation and frequency control

4.25.5 Frequency setting by pulse train input (Pr. 291, Pr. 384 to Pr. 386)

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
Name
Number
291 Pulse train I/O selection
Input pulse division
384
scaling factor
Frequency for zero input
385
pulse
Frequency for maximum
386
input pulse
(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.
Connection with an open collector output system
pulse generator
Sink logic
PC
Pull up resistance
*
JOG
SD
Connection with an open collector output system
pulse generator
Source logic
PC
JOG
Pull down resistance
*
SD
378
Initial Setting
Value Range
0
0
1 to 250
0Hz 0 to 400Hz Set the frequency when the input pulse is 0 (bias).
60Hz 0 to 400Hz Set the frequency when the input pulse is maximum (gain).
Inverter
24V power
2kΩ
Inverter
2kΩ
24V power
Pulse train input
0 Terminal JOG
1 Pulse train input
10 Terminal JOG
11 Pulse train input
20 Terminal JOG
21 Pulse train input
100 Pulse train input
0 Pulse train input invalid
Indicates division scaling factor to the input pulse and the
frequency resolution to the input pulse changes according to
the value.
Connection with a complementary output system
pulse generator
Sink logic
Connection with a complementary output system
pulse generator
Source logic
Description
Pulse train output
FM output
FM output
High speed pulse train output (50%Duty)
High speed pulse train output (50%Duty)
High speed pulse train output (ON width is
always same)
High speed pulse train output (ON width is
always same)
High speed pulse train output (ON width is
always same)
The inverter outputs the signal input as
pulse train as it
Inverter
PC
JOG
2kΩ
SD
Inverter
PC
JOG
2kΩ
SD