ROTRONIC CF8-D/W-IN - Manual (Page 3)

Dokument
UMA 148 Rev
1 Page
3 (6)
Functional test of CF8-D/W-IN
The unit has two LED’s -one yellow and one red. These LED’s indicate the status of the controller.
Yellow LED - ”Call for maintenance” is lit, if an error flag is set or the measurement is out of range.
The yellow LED flashes in series during Automatic Zero Point Calibration.
Red LED - ”Relay active” is lit for eight minutes when a zero point calibration has been executed.
PLEASE NOTE!
The sensor accuracy is defined at continuous operation.
Self diagnostics
The system contains complete self diagnostic procedures. A full system test is executed automatically
every time the power is turned on. For
CF8-D/W-IN the internal voltage regulators and outputs are
checked. In addition, constantly during operation, the sensor probes are checked against failure by
checking the valid dynamic measurement ranges. These different system checks return error bytes to
the system RAM. If any error is detected, the yellow LED will be lit until the error has vanished and the
error flag is reset. “Warm up” and “Out of Range” are the only bits that are reset automatically after
return to normal state. All other error bits have to be reset manually after return to normal state by
power off and restart.
Descriptions of the different codes are listed below.
Bit #
Error
code Error description Suggested action
0 N/A Fatal Error
Yellow LED continuously flashes.
Push buttons are not operating. Try to restart sensor by power OFF/ON.
Contact local distributor
1 2 Reserved
2 4 Algorithm Error.
Indicate wrong EEPROM
configuration. Try to restart sensor by power OFF/ON.
Check detailed settings and configuration
with UIP software version 4.0 and higher.
Contact local distributor
3 8 Output Error
Detected errors during output signals
calculation and generation. Check connections and loads of outputs.
Check detailed status of outputs with UIP
software version 4.0 and higher.
4 16 Self Diagnostic Error.
May indicate the need of zero
calibration or sensor replacement. Check detailed self diagnostic status with
UIP software version 4.0 and higher.
Contact local distributor
5 32 Out Of Range Error
Accompanies most of other errors.
Can also indicate overload or failures
of sensors and inputs.
Resets automatically after source of
error disappearance. Try sensor in fresh air.
Check detailed status of measurements
with UIP software version 4.0 and higher.
See Note 1!
6 64 Memory Error
Non fatal error during memory
operations. Check detailed settings and configuration
with UIP software version 4.0 and higher.
7 128 Warm Up state
Is always set after power up or power
failure. Resets after restart sequence. If it doesn’t disappear in half a minute,
check power stability.
Note 1. Any probe is out of range. Occurs, for instance, during over exposure of CO2 sensor, in which
case the error code will automatically reset when the measurement values return to normal. Could
also indicate the need of zero point calibration.
Remark: If several errors are detected at the same time the different error code numbers will be
added together into one single error code!