108
Ki speed
offset accel.
This gain value is effective only at low speeds. This value is added to the I
term gain in LF.32 to provide greater control and more stability.
This offset acceleration gain will assist the motor in catching the load during
starting. It is especially important for high efficiency geared or gearless
applications. Values of 2,000 to 5,000 are useful.
The offset deceleration gain will allow the system track the command speed
tightly at low speed. Often lower values are required than for starting. Values
of 500 to 2,000 are useful.
Unit: 1
Value range: 0...8000
Default setting: 3000 Accel. , 1000 Decel.
The offset gain value is tapered off beginning at about 8 ft/min and the
offset reaches zero at 24ft/min. The corner speeds can be adjusted through
parameters US.20 and US.21.
Refer to section 5.12.3 for adjustment information on A.LF.33 and d.LF.33.
Ki speed
offset decel.
The peak torque limit prevents the motor from exceeding its breakdown torque
limit. If the torque limit is reached, the acceleration process will take longer
with a full load. This can also cause the car to over shoot the  oor during
deceleration. This value can be raised.
Default Setting: 150%
The maximum output current is limited to the following:
Max Current = (0.LF.36/ LF.17) x LF.12
The maximum output current is ultimitely limited to the drive’s peak
current rating, regardless of how high the 0.LF.36 maximum torque may
be set. Refer to Sections 2.1 and 2.2 for ratings.
The low defaults setting is to protect the motor from excessively high
current which may occur during the commisioning process if there
are incorreect parameter settings (e.g. motor data incorrect, encoder
A/B phasing or ppr incorrect, encoder position for PM synchronous
motor incorrect, etc.) The default settings should be sufficient to enable
inspection operation with empty car. Under normal high speed operation,
this value will likely need to be increased, typically in the range of 200-
250% of rated motor torque.
Maximum torque
Parameter Description - Control Settings
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