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(2) When motor data is unknown, then the following formulas are used to set t he drive:
・
Identical to the default setting in E1-04~13, KT (C4-01) = 1.0.
・
If any slipping or sequence fault SE2 occurs at start, then increase the value of Vb and Vmin.
Vb = DefaultValue +
*
(5V~10V) ? try increasing up to this value
Vmin = DefaultValue +
*
(5V~10V) ? try increasing up to this value
*
Double this value when operating with a 400V class drive.
Open Loop Vector Control Mode
If slipping occurs at start, then increase both Vb and Vmin by 2V~3V after performing Auto-Tuning.
*
Double this value when operating with a 400V class drive.
(19) Torque Compensation Primary Delay Time (C4-02)
Open Loop Vector Control Mode
Shortens the setting not beyond 20ms if torque develops quickly when lowering or hoisting without a counter-weight.
(20) Swift Lift 1 Max Frequency FAMF (S4-02), FAMR (S4-03)
Sets the output frequency after Swift Lift operations within the motor and crane specifications.
If the output frequency following Swift Lift (FAMF, FAMR) is greater than the max output frequency (E1-04), then
that larger output frequency will be set to parameter E1-04.
Be aware that if the setting in E1-04 is changed, then acceleration and deceleration rates will also be changed
automatically.
(21) Swift Lift 1 Detection Torque IFAT (S4-04), IRAT (S4-05)
Normally, set to 50%, and is based on motor rating standards.
(22) Swift Lift 1 Detection Frequency FAD (S4-06)
Normally sets the Base Frequency (E1-06).
(23) Swift Lift 1 Detection Time TA (S4-07)
Normally set to 1sec.
・
If set too short, then the drive won’t be able to detect the load properly, causing the crane to fluctuate.
・
If the setting is too long, then operational time will be less effective.
(24) Swift Lift 2 Activation Frequency FAM2 (S4-08)
Normally set as high as 80%~100% of the motor’s base frequency (E1-06).
(25) Swift Lift 2 Motoring Limit Start Level LGS (S4-09)
With a motoring load, this parameter sets the activation level that automatically smoothes out the acceleration time in
response to the acceleration time and the load within the high speed area (i.e., above base speed). Set as a percentage
relative to the motor rated output.
Normally set to 50~80%, a value lower than the S4-10 (Swift Lift 2 Motoring Hold Level).
(26) Swift Lift 2 Motoring Hold Level LGH (S4-10)
Sets the level at which acceleration is stopped ("hold") so that output power is not suppressed even if the acceleration
time is automatically smoothed out when the load is hoisted at a rate above base speed. Set as a percentage relative to
the motor rated output, usually between 50% and 120%.
·
If set too low, then Swift Lift will not occur even with a very light load.
·
If set too high, then even heavy loads will reach very high speeds, the motor will lose speed, and the load may slip
down.
(27) Swift Lift 2 Regan Limit Start Level LRS (S4-11)
During load regeneration, this parameter sets the activation level that automatically smoothes out the acceleration time
in response to the acceleration time and the load when above base speed. Set as a percentage relative to the motor rated
output.
Normally set between 0% and 80%, a value lower than the S4-12 (Swift Lift 2 Regeneration Hold Level).
The motor load rate during Regan acceleration is the acceleration power lower than the motoring load.
·
Motor Load Rate During Motoring Acceleration = Load Power + Acceleration Power
·
Motor Load Rate During Regan Acceleration = –(Load Power) + Acceleration Power
Accordingly, in order to properly detect load regeneration, set the Swift Lift 2 Regan Limit Activation Level to a low
value (between 0% and 50%) and an acceleration time above base speed must be smoother by the Swift Lift 2 Aceel
Time Gain (S4-17).
(28) Swift Lift 2 Regan Hold Level LRH (S4-12)
So that the output power of the motor is not suppressed when in the high-speed area (fixed output) during regen load,
this parameter sets the level at which acceleration is stopped ("hold"). Normally set between 50% and 120%.
·
If set too low, then Swift Lift will not occur even with a very light load.
·
If set too high, then even heavy loads will reach very high speeds, the motor will lose speed, and the load may slip
down.
Содержание CIMR-F7Z
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