IMPULSE
®
•G+ & VG+ Series 4 Technical Manual
November 2020
Page 95
5.2.13 Swift-Lift™ & Ultra-Lift™
Swift-Lift/Ultra-Lift provides additional productivity by allowing a crane or hoist to quickly move into position. The
feature enables the motor to spin faster than the base speed when the load is less than 100% of the rated capacity.
Ultra-Lift determines the torque required for the load, calculates the maximum safe speed, and automatically
accelerates to this speed. The maximum speed cannot exceed the lesser value of the Maximum Forward Speed
(C06-02), Maximum Reverse Speed (C06-03), and Maximum Frequency (E01-04).
NOTE: Ultra-Lift is disabled when in traverse applications. Maximum Frequency (E01-04) must be ≥ C06-02 and
C06-03.
5.2.13.1 Swift-Lift
Swift-Lift can be enabled in the Standard Hoist motion of the G+ Series 4. In the V/f control method, the Swift-Lift
function uses motor current to determine the maximum safe speed. When the OLV control method is selected, the
Swift-Lift function uses motor torque in place of motor current for its safe speed calculations. Swift-Lift will not be
enabled if the current or torque levels exceed C06-04 or C06-05 settings. Both C06-04 and C06-05 are a
percentage of E02-01.
5.2.13.2 Ultra-Lift
Ultra-Lift can be enabled in the Non-mechanical Load Brake (NLB) Hoist motion of the VG+ Series 4 (FLV only).
The Ultra-Lift function measures motor torque at base speed and then accelerates to the maximum safe speed.
Ultra-Lift will not be enabled if the torque levels exceed C06-04 or C06-05 settings.
5.2.13.3 Adaptive Ultra-Lift
Adaptive Ultra-Lift can only be enabled in the (NLB) Hoist motion of the VG+ Series 4. The Adaptive Ultra-Lift
function continuously monitors motor torque when running above base speed to increase or decrease motor speed
based on varying load conditions.
C05-22 I/T Level 14 Current/Torque for Zone 14 0–250% 0
C05-23 I/T Level 15 Current/Torque for Zone 15 0–250% 0
C05-24 I/T Level 16 Current/Torque for Zone 16 0–250% 0
C05-25 LC Integral Time Integral time used to smooth transitions 0.00–2.55 sec 0.05
C05-26 LC Delay Time Load Check delay time for transitions 0.00–2.55 sec 0.25
C05-27 Min I->Fwd Tim Minimum delay when switching from REV to
FWD in LC. Used when the load brake cannot
stop the load fast enough.
Setting of 0.0 disables delay triggering timer
0.0–25.5 sec 0.0
C05-28 Dly Trig Freq Minimum frequency that will trigger C05-27
timer
0.0–60.0 Hz 30.0
Parameter Display Function Range Default
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