14
GBGB
GBGB
GB
OPERATIVE MODEOPERATIVE MODE
OPERATIVE MODEOPERATIVE MODE
OPERATIVE MODE
1) Remove the instrument from its case.
2) Set the V2 jumper (see fig. 13) in close
condition.
3) Re-insert the instrument.
4) Switch on the instrument.
The upper display will show the measured value
while the lower display will show the programmed
set point (we define this display condition as
“normal display mode”).
NoteNote
NoteNote
Note: When a ramp is applied to the set point value
(see rP parameter), the displayed set point
value may be different from the operative set
point.
When the HBD function is configured, the control
output is enabled and the instrument is in normal
display mode, pushing the push-button the
lower display will show the current, followed by
the "A" symbol, consumed by the load driven by
the main output.
NOTENOTE
NOTENOTE
NOTE: the time out has no effect on this
indication.
When it is desired to come back to the normal
display mode, push the push-button again.
SMART functionSMART function
SMART functionSMART function
SMART function
The SMART algorithm is a NEW self-tuning
function of the instrument. It is used by the
instrument to calculate and set automatically the
control parameters.
The SMART algorithm may be ever operative; in
this case it will adapt continuously the control
parameter in order to perform the best control
action.
To start "SMART" function, depress the SMRT
push-button for more than 1.5 seconds when the
instrument is in NORMAL DISPLAY MODE, the
SMRT indicator will start blinking or lighting
according to the special function performing.
When it is desired to disable the SMART function,
push the SMRT push-button again, the SMRT
indicator will turn to OFF.
NOTESNOTES
NOTESNOTES
NOTES:
1) During the SMART function operation, the
relative cooling gain (if present) is limited within
the following ranges:
Cooling element range
Air 0.85 to 1.00
OIL 0.80 to 0.90
H
2
O 0.30 to 0.60
2) The SMART function use a derivative action
equal to 1/4 of the integral action.
3) The limits of the proportional band and of the
integral time settable by the SMART function
are programmed by P27, P28, P29 and P30
parameter.
4) The enabling/disabling of the SMART function
may be under safety key protection.
5) When SMART function is enabled, it is
impossible to modify the Pb, ti and td
parameter; for rC parameter see P23
parameter.