Delta VFD-BW Series, User Manual

Page: 126 / 251

Chapter 5 Parameters
|
VFD-BW Series
Revision May 2009, BWE0, SW V1.05 5-61
This parameter is to delay the signals on digital input terminals. 1 unit is 2 msec, 2 units are 4
msec, etc. The delay time is used to debounce noisy signals that could cause the digital
terminals to malfunction.
04 - 23 Gear Ratio for Simple Index Function Unit: 1
Settings 4 to 1000 Factory Setting: 200
04 - 24 Index Angle for Simple Index Function Unit: 0.1
Settings 0.0 to 360.0° Factory Setting: 180.0
04 - 25 Deceleration Time for Simple Index Function Unit: 0.01
Settings 0.00 to 100.00 sec Factory Setting: 0.00
The simple index function is used to position the machine/motor at the same position when it
stops. The function should be used with setting 34 for Multi-Function Input Terminals (Pr.04-04
to 04-09).
The function diagram is shown below. The machine is driven by a gear motor or other
reduction gearbox. The trigger position of the proximity sensor is used as the starting point of
the index angle. When the stop command is initiated, the AC motor drive will not decelerate
until the proximity sensor is triggered. After that, the AC motor drive begins to decelerate and
stop according to the Pr.04-24 and Pr.04-25.
time between STOP and triggering by proximity
sensor. It depends on the moment the STOP
command is given.
Frequency
Proximity Sensor Actives
Time
Signal of Zero
=Pr.04-25
STOP Command
:
04 - 10 Digital Terminal Input Debouncing Time Unit: 2
Settings 01 to 20 msec Factory Setting: 1