Magnetek IMPULSE VG+ Series 3, Instruction Manual

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IMPULSE•VG+ Series 3 Instruction Manual – 07/25/05
5-42
Inching Control
Inching Control Function can be enabled by programming data 17, 18, and 19 respectively to the
Multi-Function input terminals (H1-01~06).The frequency reference used during inching is
determined by B1-17 (Jog Reference).
Figure 5-23: Inching Function and Inching Repeat
Index Function
This function will rotate the motor a programmed amount of encoder pulses (C13-04 and C13-05) at
a programmed frequency (C13-03). If desired, it can also repeat the move by simply entering a
repeat delay time (C13-06).The function works in both NLB Hoist and Traverse motions when the
drive is in Flux Vector or V/F with PG mode and for any speed reference method.
When the motion is Traverse, the function can be enabled at anytime. If the crane is in motion when
enabled, the Index function will not be triggered until motor speed is less than or equal to D1-01.
Enable the function via Multi-function Input (Index Enable = 60) and the brake will release and hold
position in Zero Servo mode until a directional command is input (Forward or Reverse) and indexing
will begin. When the move is complete, the Multi-Function Output (Index Complete = 34) will be
logic 1, and will remain high until another directional run input is received, the repeat delay has
Parameter
Code
Display Function Range Initial Value
Access
Level
C13-01 Inch Run Time Inching Control run time. 0.00–2.55 sec 1.00 Adv
C13-02 Repeat Delay T Inching Control repeat delay time. 0.00–2.55 sec 1.00 Adv
H1-01~06 Terminal Selection Adv
17 Forward
Inch
18 Reverse Inch
19 Inch Repeat
C A U T I O N
A directional input is not needed on terminals 1 or 2.
Inch Repeat
(MFI = 1A)
Brake
Output
Inch Forward
(MFI = 18)
Frequency
Output
C13-01
C13-02