Trouble shooting
10. Trouble shooting
The following list gives the recommended procedure for dealing with faults and locating
their possible cause.
10.1.
Questions and answers
I.
The unit permanently indicates overflow „ ¯ ¯ ¯ ¯ “.
¾
The input has a very high measurement, check the measuring circuit.
II.
The unit permanently indicates underflow „ _ _ _ _ “.
¾
The input has a very low measurement, check the measuring circuit.
III.
The device shows “HELP” in the 7-segment display.
¾
The unit has found an error in the configuration memory. Perform a reset on the
default values and reconfigure the unit according to your application.
IV.
Program numbers for parameterising the input are not available.
¾
The program lock is set to a user level that does not permit access.
V.
„Err1“ lights up in the 7-segment display
¾
This error can only be eliminated by the manufacturer.
10.2. Reset on default values
To return the unit to a defined basic state, a reset can be carried out to the default values.
The following procedure should be used:
I.
Switch off the power supply
II.
Press button [
P
]
III.
Switch on the power supply and press [
P
] for further approx. 2 seconds.
With reset, the default values of the program table are loaded and used for subsequent
operation. This puts the unit back to the state in which it was supplied.
Caution!
This is only possible when the programming lock PN50 allows access to all
PNs or “HELP” is shown in the display.
Caution!
All application-related data are lost.
