IAI SCON-CB-F, Инструкция по эксплуатации

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9. T
roubleshooting
327
[In the case of Positioner Mode]
Situation Possible cause Check/Treatment
Both position No. and
start signal are input to
the controller, but the
actuator does not move.
There is a problem either in PIO
signal treatment, position table
setting or operation mode selection.
1) Servo OFF condition
2) The pause signal is OFF.
3) Positioning command is issued
to a stop position.
4) There is no positioning data set
to the commanded position
number.
1) Is the status display LED SV turned
ON? [Refer to Name for Each Parts
and Their Functions]
Turn ON the servo-on signal SON of
PIO.
2) Operation is available when PIO
pause signal *STP is ON and pause
when it is OFF. Turn it ON. [Refer to
2.1.2. PIO Pattern Selection and
PIO Signal]
3) Check the sequence or the settings
of the position table.
4) It will generate Alarm Code 0A2
“Position Data Error”. Conduct the
position table setting.
(Note) Refer to 2.1.3 [5] and 2.2.3 [5] PIO Circuit for PIO signal.
[In the case of Pulse String Control Mode]
Situation Possible cause Check/Treatment
In spite of inputting
pulse-train to the
controller, the actuator
does not move.
PIO signal processing or parameter
setting is incorrect.
1) Servo OFF state
2) The pause signal is OFF.
3) The pulse-train type, a
parameter, is selected
incorrectly.
4) The positive/negative logic of
pulse-train, a parameter, is
selected inversely.
5) The unit moving distance per
pulse, which is a setting
condition of electronic gear ratio,
a parameter, is too small.
1) Is the status display LED SV turned
ON? [Refer to Name for Each Parts
and Their Functions]
Turn ON the servo-on signal SON of
PIO.
2) Operation is available when PIO
pause signal *STP is ON and pause
when it is OFF. Turn it ON.
3) Check the pulse train type.
[Refer to 3.3.4 [2] Format Settings of
Command Pulse Train.]
4) Check the positive/negative logic of
pulse-train. (Host units supplied by
some manufacturers have
positive/negative logic opposite to
our logic. Reserve the logic setting
and try the operation.)
[Refer to 3.3.4 [2] Format Settings of
Command Pulse Train.]
5) Do not make the unit moving
distance less than the resolution of
the encoder. The actuator does not
move unless pulses by the
resolution of the encoder are input.
[Refer to Caution in 3.3.4 [1]
Electrical Gear Setting]
(Note) In case of 3) or 4), the
actuator may not sometimes
operate smoothly.
You may not find case 5)
when the actuator is moved
for a long distance at a high
frequency.
(Note) Refer to 2.3.3 [5] PIO Circuit for PIO signal.