56
Problem
Cause
Counter-Measure(s)
Brake slips at start.
・
Brake Release current, Torque (S1-05~08)
setting is too high.
・
V/f setting is too high.
・
Decrease the Brake Release Current / Torque
(S1 -05~08).
・
Lower the V/f setting.
Refer to, “Appendix-3: Tuning Procedures”.
Brake slips when the drive has stopped.
・
Slip Prevention Time (S1 -15) is too long
・
Slip Prevention Frequency (S1 -14) is set too
high
・
Shorten the Slip Prevention Time (S1 -15)
・
Lower the Slip Prevention Frequency (S1 -14)
Refer to, “Appendix-3: Tuning Procedures”.
The drive fails to accelerate despite Stall
Prevention During Accel being activated when
speed is lost during acceleration.
・
Brake Delay Time (S1 -04) is too long
・
Accel Time setting is too short.
・
Shorten the Brake Delay Time (S1 -04)
・
Increase the acceleration time.
Slipping occurs during an abnormally early
Inching Operation.
Drive Control / Brake Operation isn ’t following
Inching Operations.
Increase the Run Command Minimum On-Time
(S2-01, -02).
Drives stops
before
an impact although Impact
Stop is enabled.
・
Impact Stop Detection Torque (S3-03, -04) is
too low.
・
Impact Stop Detection Time (S3 -05) is too
short.
・
Increase Impact Stop Detection Torque
setting (S3 -03, -04).
・
Increase the Impact Stop Detection Time
(S3 -05)
At an Impact Stop, the drives keep operating at
the Clip Frequency (Fcr).
・
Impact Stop Detection Torque (S3-03, -04) is
set too high.
・
Motor torque fails to increase upon impact
・
Impact Stop Creep Time (S3 -02) is too long
・
Lower the Impact Stop Detection Torque setting
(S3 -03, -04).
・
Check the friction on the load side (wheel slippage,
etc).
・
Impact Stop Creep Time (S3 -02) is too short.
Speed increases despite a heavy load during
Swift Lift 2.
・
The value set in Swift Lift 1 Detection Torque
(S4 -04, -05) is too high
・
Swift Lift 1Detection Time (S4 -07) is too
short.
・
Decrease the Swift Lift Detection 1 Torque (S4 -04,
-05) setting.
・
Increase the Swift Lift 1 Detection Time (S4-07).
・
Swift Lift 1 isn ’t activating.
・
Swift Lift 1 Detection Torque (S4-04, -05) is
set t oo low.
・
Enable the Swift Lift 1 function.
See section 6.4, “Swift Lift Function”.
・
Increase the setting value for the Swift Lift 1
Detection Torque (S4 -04, -05)
Hoisting of light load does not accelerate,
although Swift Lift 1 is enabled.
・
Mechanical loss is larger than Swift Lift 1
Detection Torque (S4 -05) when in reverse
・
Adjust the Swift Lift 1 Torque Bias (S4 -19, -20).
See section 6.4.1, “Swift Lift 1”.
Fault OPE24 has occurred.
Parameter setting error.
See section 7, “Faults and Counter-Measures”
Fault OL6 has occurred.
The accel time set to the drive is too short Increase the acceleration time.
Speed increases despite a heavy load during
Swift Lift 2.
The Limit Starting Level / Hold Level (S4 -09,
-10) is set too high..
Lower the Limit Starting Level / Hold Level (S4 -09,
-10)
Hoisting of light load does not accelerate,
although Swift Lift 2 is enabled.
・
Swift Lift 2 is not activating.
・
The Limit Starting Level / Hold Level (S4 -09,
-10) is set too low.
・
Enable the Swift Lift 2 function
See section 6.4.2, “Swift Lift 2”.
・
Increase the Limit Starting Level / Hold Level
(S4 -09, -10)
Note:
In addition, when running two drives synchronically or when switching motors that are running off of the same drive. Be
sure to consult with technical support before making these changes.
Содержание CIMR-F7Z
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