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(5) Brake Release Current IF (S1-05), IR (S1-06)
Vector Control:
Setting is based on the following equation: (E2 -03) × 100 / (E2-01) E2-03 = No Load Current, E2-01 = Motor Rated
Current
V/f Control Mode:
Sets the hoisting load at 100% and the traverse load at 50%.
Adjust the setting to be appropriate for the load if the load varies in forwards and reverse.
・
If set too low, then slipping is likely to occur when starting to hoist the load.
・
If set too high, then the sequence fault SE2 will occur, and the brake will slip before being released.
(6) Brake Release Torque TF (S1-07), TR (S1-08)
Vector Control Modes only:
Sets 100% for FWD TF (hoist), and 0% to REV TR
(lowering) when a load is being hoisted.
Sets 50% when performing traverse movement. This setting is changed if the load varies in FWD and REV directions.
・
If set too low, then slipping is likely to occur when starting to hoist the load.
・
If set too high, then the sequence fault SE2 will occur, and the brake is likely to slip just before it is released.
(7) Torque Compensation Amount ITCF (S1-09), ITCR (S1-10)
Sets the amount of Torque Forcing when operating in Open Loop Vector Control Mode.
Flux Vector Control Mode
Normally set to zero. Refer to the description found in, “(4) Brake Release Frequency”.
Increase the setting if the output of the Brake Release Command is slow/late, or if slipping occurs at start.
Open Loop Vector Control Mode
Increases the setting when the output of the Brake Release Command is late or too slow.
Decreases the setting value if the load experiences and jolting or jerking when the drive is powered up.
If any slipping occurs at start with a heavy load (part icularly when hoisting), then the torque limit (L7-01) on the motor
side (ITCF, S1-09) is increased.
(8) Torque Compensation Delay Time ITCT (S1-11)
Normally set to 50ms.
Sets the degree of torque compensation produced by the drive until the brake is actually release.
(9) Slip Prevention Frequency HF (S1-14)
Normally set to the same value as the Brake Delay Frequency Bf.
(10) Slip Prevention Time HT (S1-15)
Sets the delay time from when the Braking Command is given and the brake is actually applied.
(11) Brake release Frequency FHF (S1-12), FHR (S1-13)
Normally set to +3Hz~4Hz of HF. Use the following equation.
FHF, FHR = Delay Time (until the brake actually closes)× Max Output Freq / Decel Time
(12) Run Command Minimum ON Time (S2-01, -02)
During a quick inching operation, drive controls and brake operations cannot accurately track movement of inching
speed. The setting value needs to be increased.
(13) Run Command Delay Timer (Reverse ? Forward) (S2-03)
V/f Control, Open Loop Vector Control
Normally set to 0.0sec. Utilizes the settings for motor parameters (E2-
xx
) with the following equation when hoisting
operations begin just after the load has been lowered makes high current.
For more information on this operation, refer to section 6.2.2, "Run Command Delay Timer".
(14) Impact Stop Creep Frequency FCR (S3-01)
Set to value larger than the Slip Prevention Frequency (HF).
(15) Impact Stop Creep Time TCR (S3-02)
Normally set to 10sec, but this setting must be changed for mechanical protection, because the drive will continue
operating for the TCR setting time at the FCR frequency when no impact is detected.
(16) Impact Stop Detection Torque IFOT (S3-03), IROT (S3-04)
Set to a value based on the motor rated current that is larger than the current value while the drive is performing at the
FCR frequency (normally 100%).
・
If set too low, then the drive will stop before impact occurs .
・
If set too high, then the drive will continue to operate at the TCR time by the FCR frequency.
(17) Impact Stop Detection Time TIOT (S3-05)
Normally between 0.2~0.3sec. If the detection time is too short, then the drive will stop before impact occurs.
(E2-01)
2
– (E2-03)
2
× 1.5sec
2p × (E2-02) × (E2-03)
Summary of Contents for CIMR-F7Z
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