11-5. PRECAUTIONS OF HOME RETURN
A. The width of the sensor detection dog of the home, left limit and right limit sensor should be so
wide that the system does not pass the sensor even when it decelerates and stops at high speed.
If the width is too narrow, the system will pass the sensor when it decelerates and stops.
As a result, the system may consider the wrong point as the home position.
[Requirement to be considered]
1. The width of the dog should be suitably wide in consideration of speed and deceleration time.
2. The "home high speed" should be suitably high in consideration of deceleration time and dog
width.
3. The "deceleration time" should be suitably short in consideration of speed and dog width.
B. If the setting value of "home creep speed" is too high, it may cause a malfunction of search
for encoder Z phase which is a very short signal. So, it should be set in 300 rpm or less.
C. When the mechanical contact sensor (micro switch, limit switch) is used as home sensor, the
mechanical chattering (vibration) phenomena should be considered. The settling time of the
mechanical chattering should be shorter than 10 msec.
D. Home sensor should be fixed between the right limit and the left limit.
Summary of Contents for Tango-B series
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