MSA 9010 LCD, Руководство по эксплуатации

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Control Unit Models 9010 LCD and 9020 LCD 38
Failure and Error messages
MSA
GB
9 Failure and Error messages
9.1 Failure indications
Control Unit 9010/20 LCD in the presence of anomalies shows the following messages in the dis-
play:
Furthermore, for the ATEX version signals come with the failure relay and the associated LED:
-
Taking the Control Unit out of regular service by entering any of the Access Codes.
-
Blocking of the alarm set-points
9.2 Error indications
These error messages are shown in the display during the calibration or upon completion thereof.
F1 For failures in the power supply circuit, interruption of the connection conductors of the
sensor and for interruption of the sensor itself.
ATTENTION: The indication F1 can be output as a requirement of zero function in the
commissioning phase or change in the length of the length of the cable of the sensor.
The display of this failure has priority over all the other types listed below
F2 If the input signal is too high or the input amplifier is broken, check the input signal or
have the board checked by MSA
F3 At initial start-up if the EEPROM has not been programmed or is broken, the board
goes to a default of both channels. Have the board checked out by MSA
F4 When switching the Module back on after it was turned off in any of the Access Codes
except for 5, press the Enter key, the board will before a new self-diagnosis, then type
the Access Code and finish the programming
F5 For failure of the A/D Converter related to the analogue signal; in this case, have the
board checked out by MSA
F6 For a malfunction in the internal RAM of the microprocessor, in this case, have the
board checked out by MSA
F7 Irregularity detected in checking the EPROM; in this case, replace the EPROM
F8 Irregularity detected in checking the buffered RAM of the microprocessor; in this case
perform a default
F9 When switching from the normal configuration to the ATEX configuration, after the con-
firmation with the Enter key, the board performs a general default
d1 Indication of negative drift [adjustable from zero to 10 % of the full scale], in order to
eliminate this anomaly, perform a zero setting of the Control Unit
LOU 1 Power supply 24 VDC external applied to terminals 4 and 5 less than 18 VDC
LOU 2 Primary power supply 115/230 VAC missing
E1 If the difference between the zero signal and the full scale signal is < at 2 mV
[the calibration will not be accepted, the previous one remains and the indication alter-
nates with E1 and the Failure triggers only for the ATEX version]
E2 If the difference between the zero signal and the full scale signal is

200 mV
[the calibration will be accepted and the indication alternates with E2]
E3 If the difference between the zero signal and the full scale signal is between 2 and 3 mV
[the calibration will be accepted and the indication alternates with E3]
E4 If the signal exceeds the field of +300 mV with the calibration referred to the full scale,
but while performing the calibration with zero and span signals within the 300 mV
[e.g. zero signal 280 mV, span signal 10 mV, calibration setting 20]
[the calibration will be accepted and the indication alternates with E4]
E10 Appears when the same value is erroneously set for offset value and full scale value