YASKAWA FSDrive-MV1S - Page 85

5-20
Torque Control: d5
User constants for the torque control are shown in the following table.
Constant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Operation
Control
Methods
MEMOBUS
Register
Open-
loop
Vector
Flux
Vector
Display
d5-01
Torque control
selection
0: Speed control (C5-01 to C5-
07)
1: Torque control
This function is only available
in flux vector control method.
To use the function for switch-
ing between speed and torque
control, set to 0 and set the
multi-function input to “speed/
torque control change.”
0 or 1 0 No No A 310H
Torq Control Sel
d5-02
Torque reference delay
time
Set the torque reference delay
time in ms units.
This function can be used to
adjust the noise of the torque
control signal or the respon-
siveness with the host control-
ler. When oscillation occurs
during torque control, increase
the set value.
0 to
1000
0 ms No No A 311H
Torq Ref Filter
d5-03
Speed limit selection Set the speed limit command
method for the torque control
method.
1: The analog input limit from
a frequency reference
2: Limited by d5-04 constant
setting values.
1 or 2 1 No No A 312H
Speed Limit Sel
d5-04
Speed limit Set the speed limit during
torque control as a percentage
of the maximum output fre-
quency.
This function is enabled when
d5-03 is set to 2. Directions are
as follows.
+: Run Command direction
-: Run Command opposite
direction
-120 to
+120
0% No No A 313H
Speed Lmt Value
d5-05
Speed limit bias Set the speed limit bias as a
percentage of the maximum
output frequency.
Bias is given to the specified
speed limit. It can be used to
adjust the margin for the speed
limit.
0 to
120
10% No No A 314H
Speed Lmt Bias
d5-06
Speed/torque control
switching timer
Set the delay time from input-
ting the multi-function input
“speed/torque control change”
(from on to off or off to on)
until the control is actually
changed, in ms units.
This function is enabled when
the multi-function input
“speed/torque control change”
is set. In the speed/torque con-
trol switching timer, the analog
inputs hold the values of when
the “speed/torque control
change” changes. Always be
sure to allow time for this pro-
cess to finish completely.
0 to
1000
0 ms No No A 315H
Ref Hold Time