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Festo Контроллер позиционирования CPX-CMAX User Manual

Page 165

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4. Faults and diagnostics

4−29

Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH

Fault group 8 ć measuring system error

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

No.

Message

Cause/description

Error handling

Type

1)

80

Faulty communication with
the measuring system/
sensor interface or no
measuring system/sensor
interface present

Position measuring sysĆ
tem / sensor interface was
not detected when switchĆ
ing on.

·

Exchange position
measuring system /
sensor interface, check
the cables.

Level: F2
Reset: N
Info: x

interface present

Communication between
the CMAX and the position
measuring system faulty.

·

Check the cables of the
axis string, the valve
and the measuring sysĆ
tem/sensor interface
step by step and exĆ
change, if necessary.

81

Hardware of the measurĆ
ing system or sensor interĆ
face faulty

Hardware of the measurĆ
ing system or sensor interĆ
face faulty.

·

Replace the measuring
system/sensor interĆ
face.

Level: F2
Reset: N
Info: x

Fault in initialization of the
measuring system / senĆ
sor interface.

·

Exchange measuring
system/sensor interĆ
face, check firmware
update of the CMAX.

82

Invalid measured values or
measuring system error

DGCI: no magnet availĆ
able.

·

Check magnet with the
measuring system, exĆ
change proximity senĆ
sor if necessary.

Level: F2
Reset: F
Info: x

DGCI: several magnets
present.

·

Ensure: no other
magnets permitted in
the immediate vicinity
of the measuring sysĆ
tem.

DGCI: e.g.: multiple sigĆ
nals (e.g. due to vibraĆ
tions).

·

Check structure.

·

Avoid vibration.

DNCI: sensor error.

·

Exchange sensor head
in the DNCI if necessary.

Potentiometer: Operating
voltage drop below 12 V.

·

Check operating voltĆ
age, check cables for
short circuit and corĆ
rosion.

1)

Level:

fault level, see section 4.2.3; (can alternatively be parametrised as a warning or error)

Reset: behaviour upon reset, see section 4.2.4
Info:

ć = no info; x = additional info, see FCT or section 4.3.3