Festo Контроллер позиционирования CPX-CMAX User Manual

Page 150

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5. Diagnostics and error handling

5−28

Festo P.BE−CPX−CMA X−SYS−EN en 0908NH

Malfunction group 8 ć Displacement encoder error

CPX error group 108 (CPX−MMI: [Encoder error] )

Continued

No.

Message

Cause/description

Error handling

Type

1)

84

Reference position of disĆ
placement encoder was
lost

Although the controller
has set the Referenced"
status, the displacement
encoder/sensor interface
signalled Not referĆ
enced".

·

Reference again.

Error level: F2
Reset: N

85

Operating voltage of
measuring system /
sensor interface is out of
specified tolerance range
(undervoltage)

The operating voltage of
the displacement encoder
is too low.

·

Check the power
supply.

·

Check the cables on
the axis string.

Error level: F2
Reset: F

87

Defective measuring sysĆ
tem cable or measuring
system in the electrical
end−position (potentioĆ
meter only)

Defective displacement
encoder cable.

·

Check the power
supply.

·

Check the cables on
the axis string.

·

It might be necessary
to switch it off and on
again.

·

Exchange the sensor
or sensor interface,
if necessary.

Error level: F2
Reset: N

Displacement encoder in
the electrical end position
(potentiometer only)

·

Move the displaceĆ
ment encoder (potenĆ
tiometer) away from
the end position.

1)

For the error level and reset type, see section 5.2.3.

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