Magnetek Impulse G+ series 4, Instruction Manual

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IMPULSE®•G+ & VG+ Series 4 Instruction Manual – February 2017
5-52
Index Function
Indexing allows for precise movement of the motor each time a run command is applied by the
operator and the Index function is enabled by a Multi-Function Input (H01-xx = 60). This function can
only be used with Traverse (A01-03 = 0) and No Load Brake (A01-03 = 2) motions in Flux Vector
Control Method (A01-02 = 3) and with any Speed Reference setting for A01-04.
The total distance (Pulses) the motor will index is determined by the following equation:
Total distance (Pulses) = [ F01-01 (
Pulse
/
Rev
) * C13-04 (Revs)] + C13-05 (Pulses)
When the Index function is turned ON, the function can also be programmed to repeat an Index as
long as the Run command is enabled and by setting the Index Repeat Delay (C13-06) greater than
0.00 seconds. The Index will repeat again after the Index Repeat Delay (C13-06) time has expired.
Once the motor completes the Index, the brake will either set or remain in Load Float depending on
the braking sequence described below.
When an Index move is complete, a Multi-Function Output (Index Complete H02-xx = 34) can be
programmed to turn ON, and will remain ON until one of the following is true:
• another directional run input is received,
• the repeat delay time has expired and the movement is repeating, or
• the Index Function is disabled.
When Applied in Traverse (A01-03 = 0)
When the Index Function is turned ON in Traverse applications, the Index Brake Control (C13-12)
can control the action of the brake. The following describes the brake control for each setting:
Open on Index Command (C13-12 = 0)
When the Index Function is turned ON, the brake will release and hold the position in Load Float
until a run command is applied. The brake will set and normal operation will resume when the
Indexing function is disabled.
Open on Each Run (C13-12 = 1)
When the Index function is turned ON, the brake will release after each run command is applied,
then Index the motor. The brake will set after the Index or Index Repeat is complete, or the run
command is removed.
Latch Open on Run (C13-12 = 2)
When the Index function is turned ON, the brake will release when a run command is applied, then
the drive will Index the motor and will hold the position in Load Float after the Index function is
complete. The drive will remain in Load Float until another run command or the Index function is
turned OFF. The brake will set and normal operation will resume when the Index function is turned
OFF.
NOTE: For best performance, enable Index after brake has released. Not recommended for
double A4 applications.