Troubleshooting - Hach RTC Serie Basis-Benutzerhandbuch

Table 32 RTC111 SRT-module (2-channels) (continued)
Tag name Parameter Unit
ACTUAT VAR 13 Qs 2
ACTUAT VAR 14 Digi 2
ACTUAT VAR 15 msaSP 2
ACTUAT VAR 16 msas 2

Troubleshooting

Warnings
Warning
MODBUS ADDRESS
PROBE SERVICE
SENSOR MISSING
SENSOR FAIL
SENSOR
EXCEPTION
CH1: FALLBACK
STRATEGY
CH2: FALLBACK
STRATEGY
ANALOGUE
INPUT1 FAULTY
ANALOGUE
INPUT2 FAULTY
ANALOGUE
INPUT3 FAULTY
ANALOGUE
INPUT4 FAULTY
LIMIT ACTIVE
CHECK "SELECT
SENSOR"
26 English
Channel Description
L/s 2
no unit 2
kg/d 2
kg 2
Description
The RTC menu SET DEFAULTS
was selected. This deleted the
Modbus address of the RTC module
in the sc1000 controller.
A configured sensor is in service
mode.
A selected sensor was disconnected
from the sc1000 network.
A selected sensor shows an error.
A selected sensor supplied an
unknown signal to the
sc1000 network.
Channel 1 of the RTC module
started the substitutional strategy.
Channel 2 of the RTC module
started the substitutional strategy.
RTC analogue input signal is
defective.
A user-defined parameter sets a
limit for the RTC operation.
RTC module receives less
measurement values than
necessary. This warning likely
occurs with the SENSOR MISSING
warning.
Effective set point for surplus activated sludge flow
including all preset limits.
Surplus activated sludge pump ON/OFF signal
Set point for sludge mass draw off.
Surplus activated sludge mass draw off during actual
calendar day.
Access the following menu and set the correct
MODBUS address. Go to: MAIN MENU>RTC
MODULES/PROGNOSYS> RTC
MODULES>RTC> CONFIGURE>MODBUS>
ADDRESS.
Go to the SERVICE menu of selected sensor and
end the SERVICE mode.
Connect the sensor to sc1000 network again.
Look at the error mode of selected sensors.
Refer to the sensor documentation for
troubleshooting information.
Contact technical support.
Channel 1 of the RTC module started the
substitutional strategy (e.g., missing
measurement values).
Channel 2 of the RTC module started the
substitutional strategy (e.g., missing
measurement values).
Fix the analogue signal supply to RTC module.
If necessary, make sure that the limiting
parameters are correctly set. Make necessary
adjustments.
Make sure that all necessary instruments are
selected in the SELECT SENSOR menu.
Solution