Magnetek IMPULSE VG+ Series 3, Instruction Manual

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IMPULSE•VG+ Series 3 Instruction Manual – 07/25/05
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Ultra-Lift
Ultra-Lift provides additional productivity by allowing a crane or hoist to quickly move into
position. The feature enables the motor to over speed when the load is less than 100 percent of the
rated capacity. Ultra-Lift determines the torque required for the load, calculates the maximum safe
speed, and automatically accelerates to this speed. However, the maximum speed cannot exceed the
lesser value of the Ultra-Lift Maximum Output Frequency-RAISE
(C6-02), Ultra-Lift Maximum
Output Frequency-LOWER (C6-03), and Maximum Frequency (E1-04).
NOTE: Note: Ultra-Lift is disabled when in traverse applications. Maximum Frequency (E1-04)
must be > C6-02 and C6-03.
Parameter
Code
Display Function Range
Initial
Value Access
Level
C6-01 Ultra Lift 0/1 Determines whether Ultra
Lift is enabled. 0 Adv
0 Disabled
1 Enabled Automatic
2 Enabled by MFI = 13
C6-02 Ultra Lift ForSpd Maximum Output
Frequency during Ultra
Lift—FORWARD. 0–150 Hz 60 Adv
C6-03 Ultra Lift RevSpd Maximum Output
Frequency during Ultra
Lift—REVERSE. 0–150 Hz 60 Adv
C6-04 UL Fwd torque Maximum output torque
below which Ultra Lift—
FORWARD is enabled. 0–100% 50 Adv
C6-05 UL Rev Torque Maximum output torque
below which Ultra Lift
REVERSE is enabled. 0–100% 30 Adv
C6-06 UL Enabling Spd Threshold frequency at
which Ultra Lift is enabled. 0–150 Hz 59.0 Adv
C6-07 UL Delay Time Delay time at enabling
speed prior to torque-
compare function. 0.0–25.5 sec 2.0 Adv
C6-08 SFS Acc Gain Speed feedback
acceleration multiplier. 0.1–9.9 1.0 Adv
C6-09 Normal OS Level Overspeed level when not
in Ultra Lift mode 40-150 Hz 60 Adv