Reverse Rotation Prevention Selection - Mitsubishi Electric FR-F820-00046 Instruction Manual

Fr-f800 series
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• When the X67 signal is OFF, the command interface for the operation command and the speed command is the control
terminal.
X67 signal state
Signal not assigned
ON
OFF
NOTE
• The ON/OFF state of the X67 signal is applied only during a stop. When the terminals are switched during operation, the ON/
OFF state is reflected after a stop.
• When the X67 is OFF, a reset via communication is disabled.
• Changing the terminal assignment using Pr.178 to Pr.189 (Input terminal function selection) may affect the other functions.
Set parameters after confirming the function of each terminal.
Parameters referred to
Pr.28 Multi-speed input compensation
Pr.59 Remote function
selectionpage 216
Pr.79 Operation mode
selectionpage 228
5.6.4

Reverse rotation prevention selection

This function can prevent reverse rotation fault resulting from the incorrect input of the start signal.
Pr.
Name
78
Reverse rotation
D020
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.
5.6.5
Frequency setting using pulse train input
A pulse train input via 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 input and output together.
Pr.
Name
291
Pulse train I/O selection
D100
384
Input pulse division
D101
scaling factor
385
Frequency for zero input
D110
pulse
386
Frequency for maximum
D111
input pulse
Interface for the operation
command
Determined by Pr.338 setting
Control terminal only
selectionpage 249
Initial value
Setting range
0
0
1
2
Initial value
Setting range
FM
CA
0
1
*2
10
*2
11
0
*2
20
*2
21
*2
100
0
0
1 to 250
0 Hz
0 to 590 Hz
60 Hz
50 Hz
0 to 590 Hz
Interface for the speed command
Determined by Pr.339 setting
Description
Both forward and reverse rotations allowed
Reverse rotation disabled
Forward rotation disabled
Description
Pulse train input
(Terminal JOG)
*1
JOG signal
FM output
Pulse train input
FM output
High-speed pulse train output
*1
JOG signal
(50% duty)
High-speed pulse train output (50%
Pulse train input
duty)
High-speed pulse train output
*1
JOG signal
(ON width fixed)
High-speed pulse train output (ON
Pulse train input
width fixed)
High-speed pulse train output (ON
Pulse train input
width fixed). Output the pulse train input
without changes.
Pulse train input disabled
Division ratio on the input pulse. The frequency resolution on the
input pulse changes according to this setting.
Set the frequency applicable to the time when the input pulse is
zero (bias).
Set the frequency applicable to the time when the input pulse is
maximum (gain).
5.6 (D) Operation command and frequency command
Pulse train output
(Terminal FM)
*2
*2
245
5. PARAMETERS
1
2
3
4
5
6
7
8
9
10

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