Mitsubishi Electric 800 Series, Инструкция по эксплуатации, Страница: 309 / 727

(D) Operation command and frequency command
308
PARAMETERS
5.9.4
Reverse rotation prevention selection
• Set this parameter to limit the motor rotation to only one direction.
• This parameter is valid for all of the reverse rotation and forward rotation keys of the operation panel and of the parameter
unit, the start signals (STF, STR signals) via external terminals, and the forward and reverse rotation commands through
communication.
5.9.5
Frequency setting via pulse train input

Function assigned to Pr.185 JOG terminal function selection .
This function can prevent reverse rotation fault resulting from the incorrect input of the start signal.
Pr. Name Initial value Setting range Description
78
D020 Reverse rotation prevention
selection
0
0
Both forward and reverse rotations
allowed
1 Reverse rotation disabled
2 Forward rotation disabled
A pulse train input to the terminal JOG can be used to set the inverter's speed command.
Moreover, speed synchronized operation of an inverter can be performed by using the pulse train output together with
the terminal JOG.
Pr. Name Initial value
Setting
range
Description
291
D100
Pulse train I/O selection
0
Pulse train input
(terminal JOG)
Pulse train output
(terminal FM)
0 JOG signal

FM output
1 Pulse train input FM output
10 JOG signal

High-speed pulse train output (50%
duty)
11 Pulse train input
High-speed pulse train output (50%
duty)
20 JOG signal

High-speed pulse train output (ON
width is fixed)
21 Pulse train input
High-speed pulse train output (ON
width is fixed)
100 Pulse train input
High-speed pulse train output (ON
width is fixed)
Output of pulse train input as is
384
D101 Input pulse division
scaling factor
0
0 Pulse train input disabled
1 to 250
Division ratio on the input pulse. The frequency resolution on
the input pulse changes according to this setting.
385
D110 Frequency for zero input
pulse
0 Hz 0 to 590 Hz Sets the frequency when the input pulse is zero (bias).
386
D101 Frequency for maximum
input pulse
60 Hz 0 to 590 Hz Sets the frequency when the input pulse is maximum (gain).