YASKAWA FSDrive-MV1000 Parameter Manual page 147

Switching Between Torque and Speed Control
■
A contact output can be used to switch Torque Control and Speed Control (H1-
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, a delay time can be set up 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. Be
sure to 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-
Figure 2.39
Speed/Torque control
input (H1- = 71)
Run command
Operation Mode
Frequency refernce
signal or d5-04
Torque reference signal/
Torque limit
common_TMonly
■ d5-01: Torque Control Selection
No.
d5-01
Setting 0: Disabled
Speed Control will be active. Also use this setting when H1-
Setting 1: Enabled
Torque Control is always enabled.
■ d5-02: Torque Reference Delay Time
A filter with the time constant set in parameter d5-02 can be applied 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.
d5-02
<1> For details on the default settings, refer to
YASKAWA ELECTRIC EZZ010930 FSDrive-MV1000 Parameter Guide
is set to 71 at the same time.
OFF (open) ON (closed)
OFF
(open) ON (closed)
Speed Control Torque Control
Speed Ref. Speed Limit
Torque Limit Torque Reference
d5-06
Figure 2.39 Speed/Torque Control Switching Time
Name
Torque Control Selection
Name
Torque Reference Delay Time
Control Mode Dependent Parameter Default Values on page
OFF (open) ON (closed)
Speed Control Torque Control
Speed Ref. Speed Limit
Torque Limit Torque Reference
d5-06 d5-06
Setting Range
0 or 1
= 71 (Speed/Torque Control Switch).
Setting Range
0 to 1000 ms
2.4 d: Reference Settings
= 71). When switching from Speed
Speed Control
Speed Ref.
Torque Limit
Default
0
Default
Determined by A1-
02
<1>
79.
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