Failure Cause
Countermeasure
Page for
reference
Is the wiring of cylinder stop
output correct?
Refer to “Wiring” and correct the
wiring.
12
Is the set time for output proper?
Set proper time taking timing on
the reading side into
consideration.
19
Cylinder stop
output is not
sent out.
Does the encoder detect the
vibration of the equipment itself
and keep sending signals even
when the actuating part is
stopped?
Reduce the vibration or use
encoder with lower resolution.
9
Is the wiring of control signal
input correct?
Refer to “Wiring” and correct the
wiring.
12
Is each signal inputted in a
proper time duration?
Reset input requires 10 ms or
longer for pulse input. Hold
signals for other inputs.
12
Control signal
input does not
become active.
[RESET]
[HOLD]
[BANK]
Is the counter in count mode?
Press [MODE] key to switch the
mode to count mode.
14
Is the wiring of RS-232C input/
output correct?
Refer to “Wiring” and correct the
wiring. Some devices do not
operate only with three signal
wires.
13
Is the communication speed
proper?
Set the communication speed to
have the same speed for the
counter and host computer
19
Is the transmitted data
matched?
Transmit data matched with the
communication command.
27
Are the unit numbers specified
matched between the sending
side and receiving side?
Match the unit numbers of the
counter and transmitted data.
20
RS-232C
communicatio
n cannot be
done.
Are the command and mode
matched?
Some command are only active
in count mode and others are
only active in setting mode.
Switch to a proper mode for the
command.
27
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42
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