Moons' MBDV Series - Rotation Direction Switch

79
Rev. 2.0
07/27/2023
MBDV Hardware Manual
7.3.3 Rotation direction switch
In velocity control, direction of rotation can be selected via a digital input. When a digital input
has been congured with the SPD-DIR function, the servo drive will use the magnitude of the
commanded velocity and determine direction of motion based on the logic state of the SPD-DIR
input.
SPD-DIR input signal conguration
The SPD-DIR signal can be congured as follows when assigned to a digital input:
Type Signal name Set value Signal logic Function
Input
SPD-DIR
35
Closed
When the input signal is valid, the direction of the speed command is
reversed
Open
The input signal is invalid, the rotation direction of the motor is
determined by the direction of the speed command
36
Open
When the input signal is valid, the direction of the speed command is
reversed
Closed
The input signal is invalid, the rotation direction of the motor is
determined by the direction of the speed command
GP 0 -
When all input pins of the driver are not congured with this function, the
rotation direction of the motor is determined by the positive and negative
of the command speed
Determined by parameter P1-11 motor rotation direction, speed command (communication
command), and speed command direction switching SPD-DIR. The detailed relationship is shown
in the table below.
◆
When all input pins of the driver are not congured with this function
Parameter P1-11 Motor
Speed command
(Communication
）
Speed command direction
switching SPD-DIR input
Actual motor rotation direction
0 just This input function is not set
CW Clockwise
0 just This input function is not set
0 burden This input function is not set
CCW counterclockwise
0 burden This input function is not set
1 just This input function is not set
CCW counterclockwise
1 just This input function is not set
1 burden This input function is not set
CW Clockwise
1 burden This input function is not set
◆
When the drive input pin is congured as speed command direction switch SPD-DIR
Parameter P1-11 Motor
rotation direction set value
Speed command
(Communication
command)
Speed command direction
switching SPD-DIR input
Actual motor rotation direction
0 just invalid
CW Clockwise
0 burden invalid
0 just e󰀩cient
CCW counterclockwise
0 burden e󰀩cient
1 just invalid
CCW counterclockwise
1 burden invalid
1 just e󰀩cient
CW Clockwise
1 burden e󰀩cient