WIKA CS4S, Руководство по эксплуатации, Страница: 31 / 92

14033590.01 10/2014 GB/D
WIKA operating instructions model CS4S 31
GB
7.6 Switching between automatic/manual control
■
In order to be able to use manual control, using the functionality of the
OUT
/
OFF
key, the
function “Switching automatic/manual control” must be selected. The manual control is
activated by pressing the
OUT
/
OFF
key.
■
The control can then be carried out manually, where the manipulated variable can be
increased or decreased with the ▲ and ▼ keys.
■
The furthest-right decimal point on the SV display flashes during manual control.
■
With a further press on the
OUT
/
OFF
key, the controller will return to automatic control.
■
Whenever the power supply to the controller is switched on, automatic control is started
automatically.
■
By switching between automatic and manual control, sudden changes in the
manipulated variable are prevented.
■
If the functionality of automatic/manual control were to be selected, the OFF Function
(switching control off) would not be possible.
7.7 Switching control off (OFF function)
■
This function switches the control off, also if the power supply to the controller is
switched back on. This is used if the control needs to be interrupted. On the upper PV
display [ ] is displayed, so long as the function is activated.
■
This function can be started from all other functions and programming levels, by pressing
the
OUT
/
OFF
key for approx. 1 second.
■
If the OFF function has been activated at the start, it can also not be deactivated by
switching the power supply off and then on. In order to switch the control back on, the
OUT
/
OFF
key must once again be pressed for approx. 1 second.
7. Configuration
High alarm (Switch behaviour activated) High alarm (Switch behaviour deactivated)
Hysteresis Hysteresis
Set point
+ Alarm value
ON
OFF
Set point
+ Alarm value
ON
OFF