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3.4.3.
Setting up the PID
0000
Home page
0000
Press > 2 seconds
0
Enter password (default = 1) with the
PASS1
Press 5 times (if the model does not have remote setpoint input and current
transformer options and is not the Programmer)
PID
Submenu
PID
S.TUNE
SOFT.S
A.TUNE
Cntr
0000
Home page
0000
The PID submenu also lets you:
•
set the Soft-Start time (parameter SOFT.T, default =
0.0);
•
select the type of Auto-Tuning used (parameter Aut.t,
default = CONTI);
•
set the derivative time (parameter DERV.S, default = 1);
•
set the proportional heating band or hysteresis in ON-
OFF control (parameter H.PB, default = 1.0);
•
set the integral heating time (parameter H.IT, default =
4.00);
•
set the derivative heating time (parameter H.DT, default
= 1.00);
•
set the maximum heating power limit (parameter H.P.HI,
default = 100.0);
•
set the minimum heating power limit (parameter H.P.LO,
default = 0.0);
•
select the cooling fluid (parameter COOL, default =
FAN);
•
set the cooling setpoint compared to the heating
setpoint (parameter C.SP, default = 0.0);
•
set the proportional cooling band or hysteresis in ON-
OFF control (parameter C.PB, default = 1.0);
•
set the integral cooling time (parameter C.IT = 4.00);
•
set the derivative cooling time (parameter C.DT = 1.00);
•
set the maximum cooling power limit (parameter C.P.HI,
default = 100.0);
and
If the optional auxiliary input is present and PID.2 is enabled in EN.FUN, the menu to
select the reference PID.N number appears before S.TUNE.
Enable or disable Self-Tuning (default = OFF) with the
Description of parameter and list of options on page. 103
Enable or disable Soft-Start (default = OFF) with the
Description of parameter and list of options on page. 103
Enable or disable Auto-Tuning (default = OFF) with the
Description of parameter and list of options on page. 103
Select the control (default = H.PID) with the
Description of parameter and list of options on page. 104
Press > 2 seconds
80209C_MHW_850-1650-1850_20-2020_ENG_pag. 51
keys
and
and
keys
•
set the minimum cooling power limit (parameter C.P.LO,
default = 0.0);
•
set the Manual Reset value (parameter RESET, default
= 0);
•
set the Reset Power value (parameter P.RST, default =
0.0);
•
set the Antireset value (parameter A.RST, default = 0);
•
set the Feedforward Power value (parameter, default =
0.0);
set the deadband (parameter DEAD.B, default = 0);
•
•
set the fault action power (parameter FAULT, default =
0.0);
•
set the setpoint gradient in raise (parameter GRAD.I,
default = 0.0);
•
set the setpoint gradient in lower (parameter GRAD.D,
default = 0.0);
•
select the gradient unit of measurement (parameter
Unit, default = DIG/S);
•
set the control output gradient (parameter GRAD.O,
default = 0.0);
•
set the LBA alarm trip delay LBA (parameter LBA.TM,
default = 30.0);
•
set the value of power delivered when the LBA alarm
trips (parameter LBA.PW, default = 25.0).
and
keys
keys
and
keys
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