Nidec Control Techniques Digitax-SF DA21223, Instruction Manual, Page: 177 / 386

40
5. Settings
Digitax SF I
nstruction Man
ual
５. Parameters
No. 60.0
Analog velocity:
Offset value
Range Default Characteristics
－32,768 to +32,767 0
Function
Use
Set the offset value when Analog velocity: offset tuning method (62.2) = 1 (manual).
Connect power for the analog command, having the input voltage of 0 V, and adjust this parameter
such that the rotational speed becomes 0
rpm
.
1. For CCW rotations, set this parameter to a negative number, and for CW rotations,
set to a positive number.
2. If the actual rotational speed is beyond the ± 10
rpm
range, set this parameter to
± 50 and check the motor motion.
Prerequisite Analog velocity: Offset tuning method (62.2) = 1 (manual)
Related To No. 62.2
No. 62.0
Analog velocity:
Rotational direction
Settings Default Characteristics
0, 1 1
Function
Use
Select the rotational direction of analog speed pulse train input.
Settings Negative Voltage Input Positive Voltage Input
0 CCW Rotation CW Rotation
1 CW Rotation CCW Rotation
No. 62.1
Analog velocity:
Input filter
enable
switch
Settings Default Characteristics
0, 1 1
Function
Use
Enable/Disable Input filter for Analog Velocity Command.
This filter is a first-order IIR filter. Use it if there is too much noise in analog command.
Settings Filter
0 Disable
1 Enable
No. 62.2
Analog velocity:
Offset tuning method
Settings Default Characteristics
0, 1 1
Function
Use
Select either auto or manual method for offset tuning of Analog Velocity Command.
For manual adjustment, use the parameter Analog velocity: offset value (60.0) for tuning.
Settings Offset tuning method
0
Auto:
Select this to automatically adjust the offset value, such that the speed
command becomes 0
rpm
with the input voltage at the time of servo on.
1
Manual:
Select this to manually adjust the offset value, such that the speed
command becomes 0
rpm
with 0V input voltage.
Related To No. 60.0