WIKA CS4L - Manual (Page 29)

Operating Instructions Temperature Indicating Controller CS4H / CS4L
V1.1 • 05/2006 - 29 -
5.6 Control output OFF function
Control output OFF function [ ]
• A function to pause the control action or turn the control output of the unused instrument of the
plural units OFF even if the power to the instrument is supplied.
[ ] is indicated on the PV display while the function is working.
• Pressing the OUT /
OFF
key for approx. 1 second from any mode turns the control output OFF.
Pressing the OUT /
OFF
key again for approx. 1 second cancels the control output OFF function.
• Once the control output OFF function is enabled, the function cannot be released even if the
power to the instrument is turned OFF and ON again.
To cancel the function, press the OUT /
OFF
key again for approx. 1 second.
5.7 Auto/Manual control function
PV/SV display mode (Manual control)
• To use manual control function, Auto/Manual control function must be selected in the OUT /
OFF
key
function selection.
First, press the OUT /
OFF
key. Control can be performed by increasing or decreasing the output
manipulated variable (MV) using the ▲ or ▼ key.
• The 1st decimal point from the right on the SV display blinks.
• By pressing the
OUT /
OFF
key again, the mode reverts to the PV/SV display (automatic control)
mode. Whenever the power to the controller is turned on, automatic control starts.
• If control action is switched from automatic to manual or vice versa, balanceless-bumpless
function works to prevent sudden change of manipulated variable.
• If Auto/Manual control function is selected, control output OFF function is disabled.
5.8 Output manipulated variable indication
Output manipulated variable indication
• Output manipulated variable is indicated on the SV display by pressing the MODE key for approx.
3 seconds in the PV/SV display mode.
While output manipulated variable is being indicated, the 1st decimal point from the right on the
SV display blinks at a cycle of every 0.5 second. When the MODE key is pressed again, the mode
reverts to the PV/SV display.