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.
Pr.288
page 356 In addition, synchronous speed operation of inverters can be performed by combining pulse train I/O.
Pr.292
page 207
Pr.383
Parameter
page 171
Number
Pr. 450
page 179
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.
· Output specifications (high speed pulse train output or FM output) of terminal FM can be selected using Pr. 291.
Connection with an open collector output system
pulse generator
Sink logic
Pull up resistance
Connection with an open collector output system
pulse generator
Source logic
Pull down resistance
358
Initial
Name
Value
0Hz
60Hz
Inverter
PC
*
JOG
2kΩ
SD
Inverter
PC
JOG
2kΩ
*
SD
Setting
Range
Pulse train input
0 Terminal JOG
1 Pulse train input
10 Terminal JOG
11 Pulse train input
20 Terminal JOG
0
21 Pulse train input
100 Pulse train input
0 Pulse train input invalid
Indicates division scaling factor to the input pulse and the
0
1 to 250 frequency resolution to the input pulse changes according to
the value.
0 to 400Hz Set the frequency when the input pulse is 0 (bias).
0 to 400Hz Set the frequency when the input pulse is maximum (gain).
Connection with a complimentary output system
pulse generator
Sink logic
24V power
Connection with a complimentary output system
pulse generator
Source logic
24V power
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