YASKAWA T1000A Technical Manual page 161

Setting 1: Enabled
Torque Control is always enabled.
n
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
n
d5-03: Speed Limit Selection
Parameter d5-03 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: Parameter 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. Refer to
on page 159.
No.
d5-04
n
d5-05: Speed Limit Bias
Using d5-05 a bias can be applied to the speed limit value. The bias is set as a percentage of the maximum output
frequency. Refer to Speed Limitation and Speed Limit Bias on page
No.
d5-05
n
d5-06: Speed/Torque Control Switchover Time
Sets the delay time for switching from Speed Control to Torque Control and vice versa.
No.
d5-06
n
d5-08: Unidirectional Speed Limit Bias
Parameter d5-08 selects how the speed limit bias is applied.
No.
d5-08
Setting 0: Disabled
The speed limit bias is applied in both directions, the speed limit and the opposite direction.
Setting 1: Enabled
The speed limit bias is applied in the opposite direction of the speed limit only.
YASKAWA ELECTRIC SIEP C710616 30B YASKAWA AC Drive T1000A Technical Manual
Parameter Name
Torque Reference Delay Time
Parameter Name
Speed Limit Selection
Parameter Name
Speed Limit
Parameter Name
Speed Limit Bias
Parameter Name
Speed/Torque Control Switchover Time
Parameter Name
Unidirectional Speed Limit Bias
5.4 d: Reference Settings
Setting Range
0 to 1000 ms
Setting Range
1, 2
Speed Limitation and Speed Limit Bias
Setting Range
-120 to 120%
159.
Setting Range
0 to 120%
Setting Range
0 to 1000 ms
Setting Range
0 or 1
Default
Determined by A1-02
Default
1
Default
0%
Default
10%
Default
5
0 ms
Default
1
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