14033590.01 10/2014 GB/D
WIKA operating instructions model CS4S
43
GB
The PV display
permanently
displays the scaled
start value
⇒ Sensor burnout with input configuration for voltage signal (DC 0 ... 5 V,
DC 0 ... 10 V) or current signal (DC 0 ... 20 mA).
■
Check the correct connection of the sensor to the connection terminals and
the connecting wires.
Check the measuring input as follows:
Voltage input (DC 0 ... 5 V, DC 0 ... 10 V)
At the measuring input, apply a defined signal of DC 1 V. If the controller
shows the measured value which corresponds to a signal of DC 1 V, the
input is OK and there is a defect in the sensor.
Current input (DC 0 ... 20 mA)
Apply a defined signal of DC 1 mA at the measuring input. If the controller
shows the measured value which corresponds to a signal of DC 1 mA, the
input is OK and there is a defect in the sensor.
⇒ If there is a defect in the connected sensor, replace the
faulty sensor!
The PV display
screen is either not
normal or instable
■
Select the correct input configuration (sensor type and temperature units,
°C or °F)
■
Input a suitable value for the sensor correction
■
Check the specification of the sensor
■
Use an ungrounded sensor
■
Mount the controller so that it is distanced from interference sources. An
instrument in the vicinity of the controller can lead to inductive disturbances.
The PV display
shows [
Err1
].
Internal memory is defective
⇒ Contact the manufacturer
11.2 Key operations
Faults
Measures
Adjustments are not
possible or do not
alter when pressing
the ▲ or ▼ keys.
■
Deactivate the locking function
⇒ Locking level 1 or 2 was activated.
■
The controller is carrying out an auto tuning or an auto reset.
In the case of auto tuning, if necessary, cancel the self-tuning. With Auto
reset, it takes about 4 minutes until the process is terminated automatically.
Despite pressing
the ▲ or ▼ key, the
set point cannot be
altered within the
measuring range
⇒ The maximum or minimum set point has been set to a value so that it cannot
now be altered.
Modify the values as required within auxiliary parameter level 1
11. Faults
