11
９．
Troubleshooting
This page lists problems frequently inquired of and their solutions. Before making
inquiries, please check the corresponding items.
If you still cannot solve your problem, please contact the customer support section
mentioned at the end of this document.
Status
Check
Result
Next Check
See
A or B phase
digital signals
are not output.
Is rotating
speed
in
specifications
range?
Yes
・
Check the power supply pin
assignment and voltage.Check
the output signal pin
assignment and the receiver
circuit.
4-1
4-2
4-3
4-4
No
・
Set rotating speed
in specifications range.
7-3
Signals
are
interrupted.
Is rotating
speed
in
specifications
range?
Yes
・
Check for excessive load to the
bearing
・
Check that the bandwidth of
your counter has not
been exceeded.
・
Check for noise in the power
supply and the frame ground.
6
7-9
7-3
4-1
No
・
Set rotating speed
in specifications range.
7-3
Z
phase
Signals
are
not output.
Is
the
reception
machinery
able to catch
500ns
pulse
？
Yes
・
Check the Z phase signal by
oscilloscope
7-3
No
・
Use equipment with sufficient
bandwidth.
・
increase pulse the width using
a one-shot multi-vibrator (74
LS221 etc.).
4-3
4-4
5-1
The
actual
position(angle)
differs greatly
from that by
the encoder
Is
the
difference
great?
Yes
・
Check that the resolution
setting is correct.
4-5
No
・
Check for excessive load to the
bearing
・
Check
that
the
shaft
alignment is precise.
6
7-9
９．
９．
９．
９．
Troubleshooting
