2.4 d: Reference Settings
152
YASKAWA ELECTRIC
TOEP C710687 03B FSDrive-MV1000 Parameter Guide
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Switching Between Torque and Speed Control
Use a digital output to switch Torque Control and Speed Control (H1-
= 71). When switching from Speed Control to
Torque Control, the torque limit becomes the torque reference and the speed reference becomes the speed limit. This
change is reversed when switching back to Speed Control.
If required by the application, set up a delay time using parameter d5-06. The reference values (torque reference/speed
limit in Torque Control or speed reference/torque limit in Speed Control) are held during this switch delay time. Change
the reference values from the controller within this delay time.
Note: 1.
The switching delay time d5-06 is not applied when the Stop command is entered. Here the operation switches immediately to speed
control and the drive decelerates to a stop at the torque limit.
2.
Set d5-01 to 0 when switching between Torque Control and Speed Control. An oPE15 alarm will be triggered if parameter d5-01 is
set to 1 while H1-
is set to 71 at the same time.
Figure 2.40
Figure 2.40 Speed/Torque Control Switching Time
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d5-01: Torque Control Selection
Setting 0: Disabled
Speed Control will be active. Also use this setting when H1-
= 71 (Speed/Torque Control Switch).
Setting 1: Enabled
Torque Control is always enabled.
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d5-02: Torque Reference Delay Time
Apply a filter with the time constant set in parameter d5-02 to the torque reference signal in order to eliminate oscillation
that results from an unstable torque reference signal. A higher filter time will stabilize control, but also reduce the
responsiveness.
No.
Name
Setting Range
Default
d5-01
Torque Control Selection
0 or 1
0
No.
<1> For details on the default settings, refer to
Control Mode Dependent Parameter Default Values on page 84
.
Name
Setting Range
Default
d5-02
Torque Reference Delay Time
0 to 1000 ms
Determined by A1-02
d5-06
Speed/Torque control
input (H1-
= 71)
Run command
OFF (open)
ON (closed)
OFF (open)
ON (closed)
d5-06
OFF
(open)
Operation Mode
Speed Control
Torque Control
Speed Control
Torque Control
Frequency refernce
signal or d5-04
Speed Ref.
Speed Limit
Speed Ref.
Speed Limit
Torque Limit
Torque Limit
Torque Reference
Torque Reference
Speed Control
d5-06
Speed Ref.
Torque Limit
Torque reference signal/
Torque limit
ON (closed)
common_TMonly
MV1000ParameterGuide_E_conditional.book 152 ページ 2013年10月11日 金曜日 午後8時18分