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15
Command Hysteresis
c. HY.
hysteresis in ON/OFF or dead band in P.I.D.
-999...+999 [digit
sensors) > Default: 0.0
16
Command Delay
c. de.
(only in ON/OFF functioning).(In case of servo valve it also
functions in PID and represents the delay between the
opening and closure of the two contacts).
-180...+180 seconds, tenths of second in case of servo valve.
Negative: delay in switching off phase.
Positive: delay in activation phase.
Default: 0.
17
Command Setpoint Protection
c. s.p.
allow/deny modifications of command setpoint by frontal
keyboard.
> Default
free
Locked
Lock.
18
Proportional Band
p.b.
process inertia in units (°C if temperature).
0 on/off if
1-9999 [digit
19
Integral Time
t. i .
process inertia in seconds
0.0-999.9 sec. (0 excludes integral) > Default: 0.
20
Derivative Time
t.d.
normally ¼ of integral time.
0.0-999.9 sec. (0 excludes derivative) > Default: 0.
3
The display of decimal point depends on the setting of parameter
and the parameter
], (degrees.tenths for temperature
3
equal to 0. > Default
t. i .
], (degrees for temperature sensors).
3
d.p.
UR3274U - User manual
sen.
41
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