YASKAWA A1000 HHP Programming Manual page 71

Speed/Torque control
input (H1-oo = 71)
Run command
Operation Mode
Frequency reference
signal or d5-04
Torque reference signal/
Torque limit
n d5-01: Torque Control Selection
No.
d5-01
Setting 0: Disabled
Speed Control will be active. Also use this setting when H1-oo = 71 (Speed/Torque Control Switch).
Setting 1: Enabled
Torque Control is always enabled.
n d5-02: Torque Reference Delay Time
Apply a filter with the time constant set to parameter d5-02 to the torque reference signal to eliminate oscillation resulting
from an unstable torque reference signal. A higher filter time stabilizes control while reducing the responsiveness.
No.
d5-02
n d5-03: Speed Limit Selection
Determines how the speed limit is set.
No.
d5-03
Setting 1: Frequency Reference Input
The frequency reference value at the active reference source (digital operator, External reference 1 or External reference 2)
will be used as speed limit. Note that in this case all settings for accel/decel times (C1-01 to C1-08) and S-curves (C2-01 to
C2-04) will apply for the speed limit.
Setting 2: d5-04
The speed limit is set by parameter d5-04.
n
d5-04: Speed Limit
Sets the speed limit during torque control if parameter d5-03 is set to 2.
page 69.
No.
d5-04
n d5-05: Speed Limit Bias
Applies a bias set as a percentage of the maximum output frequency to the speed limit value.
Speed Limit Bias on page
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
OFF ON
OFF ON
Speed Control Torque Control
Speed Ref. Speed Limit
Torque Limit Torque Reference
d5-06
Figure 1.48 Speed/Torque Control Switching Time
Parameter Name
Torque Control Selection
Parameter Name
Torque Reference Delay Time
Parameter Name
Speed Limit Selection
Parameter Name
Speed Limit
69.
OFF
Speed Control Torque Control
Speed Ref. Speed Limit
Torque Limit Torque Reference
d5-06 d5-06
Refer to Speed Limitation and Speed Limit Bias on
1.4 d: Reference Settings
ON
Speed Control
Speed Ref.
Torque Limit
Setting Range
0, 1
Setting Range
0 to 1000 ms
Setting Range
1 or 2
Setting Range
-120 to 120%
Refer to Speed Limitation and
Default
0
Default
0 ms
Default
1
Default
1
0%
71