Chapter 4 Parameters
|
4-130
Revision Dec. 2008, 04VE, SW V2.05
When Pr.07-21 is set to 1 or 2, Pr.07-20 is used to display torque command.
07-22
Maximum Torque Command
Unit: 1
Control
mode
TQCPG
Factory Setting: 100
Settings
0 to 500%
This parameter is for the max. torque command (motor rated torque is 100%).
According to the formula of motor rated torque:
)
/
(
)
(
)
.
(
s
rad
W
P
M
N
T
ω
=
, where P(
ω
) is Pr.05-
02 and W(rad/s) is Pr.05-03.
s
rad
RPM
/
2
60
=
×
π
07-23
Filter Time of Torque Command
Unit: 0.001
Control
mode
TQCPG
Factory Setting: 0.000
Settings
0.000 to 1.000 sec
When the setting is too long, the control will be stable but the control response will be delay.
When the setting is too short, the response will be quickly but the control maybe unstable.
User can adjust the setting by the control and response situation.
07-24
Speed Limit Selection
Control
mode
TQCPG
Factory Setting: 0
Settings
0
By Pr.07-25 and Pr.07-26
1
Frequency command source (Pr.00-20)
The function of speed limit: In the torque control mode (TQCPG), when the torque command is
larger than the load, it will be changed to speed control mode while the motor speed is
accelerated to speed limit setting (Pr.07-24, Pr.07-25 and Pr.07-26) to prevent the motor from
continuous acceleration.
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