Siemens SIPART PS2 6DR50xx Instrucciones de operaciones descargar pdf (Pagina 197)

Alarm, error, and system messages

11.4 Fault correction

SIPART PS2 with and without HART communications

Operating Instructions, 09/2007, A5E00074631-07

197

Symptoms Possible cause(s) Corrective measures

• Positioner doesn't move control

valve to the stop (at 20 mA).

• Supply pressure too low. Load on

the feeding controller or system

output is too low.

• Increase supply pressure, insert ballast

converter

• Select 3/4-wire mode

Error table 4

See also

Service and maintenance (Page 199)

11.4.6 Remedial measures table 5

Fault profile (symptoms) Possible cause(s) Remedial measures

• Zero point displaces

sporadically (> 3%).

• Impact or shock loads result in

accelerations so high that the friction clutch

moves, e.g. due to "vapor shocks" in vapor

lines.

• Rectify the causes for shock

loads.

• Re-initialize the positioner.

• Electrical auxiliary power supply is not

adequate.

• Check the electrical auxiliary

power supply.

• The device function has

completely failed: no view even

on the digital display.

• In case of very high continuous loads due to

vibrations (oscillations):

• Screws of the electrical connecting

terminals may be loosened.

• Electrical connecting terminals and/or

electronic components may be knocked out.

• Tighten the screws firmly and

secure using sealing wax.

• Repair

1)

• For prevention: Install the

positioner on the damping

pads.

Fault table 5

1)

More information is given under the also-see link.

See also

Service and maintenance (Page 199)

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