Magnetek IMPULSE VG+ Series 3, Instruction Manual

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IMPULSE•VG+ Series 3 Instruction Manual – 07/25/05
5-27
Enable Ultra-Lift Function:
2,3,5-Speed Multi-Step (A1-04=0, 1, or 2):
1. Set C6-01=1 or 2 to enable the
Ultra-Lift Function
, 1= Enable Automatic, 2= Enable by Multi-
Function Input (MFI).
2. Set C6-02 and C6-03 to determine
Ultra-Lift
maximum FWD/REV output frequency.
3. Set C6-04 and C6-05 to determine
Ultra-Lift
maximum enable output current.
4. Set the
Ultra-Lift Enabling Speed
(C6-06) one or two hertz below the maximum normal running
speed reference.
For example: If the maximum normal running speed is at 60 Hz, set C6-06 to 59 Hz
or 58 Hz as the
Ultra-Lift Enabling Speed
.
5. Ensure that the
Maximum Frequency (E1-04)
is increased from 60 Hz.
2, 3 Step Infinitely Variable (A1-04=3 or 4)
6. If the system is using
2-Step or 3-Step Infinitely Variable
as the
Speed Control Method
, the
following formula is used to adjust the constant
B2-01
(Reference Upper Limit) .
B2-01=60 Hz x 100 / E1-04
Uni-Polar/Bi-Polar Analog (A1-04=5 or 6)
7. If the system is using
Bi-Polar Analog
or
Uni-Polar Analog
as the
Speed Control Method
, the
following formula is used to adjust the constant
H3-02
(Gain Multiplier for Terminal A1 analog input signal). H3-10 (Gain Multiplier for
Terminal A2 analog input signal).
H3-02=60 Hz x 100 / E1-04 or H3-10=60 Hz x 100/E1-04
WA R N I N G
Motors and drive machinery must be capable of operating above motor base speed. Consult
the motor/gearbox/hoist manufacturer before enabling Ultra Lift function. Failure to observe
this warning may result in damage to equipment and possible injury or death to personnel.