Pid2.E - Enabling Pid.2; App.t - Pid Control Application Type; Cas.r - Cascade Control Reference; Progr - Enabling The Setpoint Programmer - gefran 850 Installation And Instruction Manual

4.21.1. PID2.E – Enabling PID.2
Acronym
PID2.E ENABLE OF PID 2
The parameter shows and sets enabling of second PID.
The parameter appears only if the optional auxiliary input is available and if option PV2 on the FUNC parameter of the
INPUT.2 menu has been selected.
Unit of measurement:
Options: OFF
On
4.21.2. APP.T – PID control application type
Acronym
APP.t PID APPLICATION CONTROL TYPE
The parameter shows and sets the PID control application type.
The parameter appears only if the optional auxiliary input is available, if option PV2 on the FUNC parameter of the
INPUT.2 was selected, and if parameter PID2.E is On.
Unit of measurement:
Options: 2.PID
CAS.HE = PID.1 and PID.2 in cascade. PID.1 HEAT control output = setpoint for PID.2*
CAS.CO = PID.1 and PID.2 in cascade. PID.1 COOL control output = setpoint for PID.2*
CAS.HC = PID.1 and PID.2 in cascade. PID.1 HEAT + COOL control output = setpoint for PID.2*
(*) PID.1 control tends to maintain PV1 = SSP1 automatically; PID.2 control tends to maintain PV2 = OUT.P1 in remote
setpoint mode. Remote setpoint mode is obtained with function keys/digital inputs /Logic Function Blocks /serial after
having enabled remote setpoint SP.rEM=On.
4.21.3. CAS.R – Cascade control reference
Acronym
CAS.r CASCADE CONTROL REFERENCE
This parameter shows and sets the reference for cascade control, required for scaling of PID.1 power in the remote PID.2
setpoint.
This parameter is shown only if APP.t = CAS.HE or = CAS.CO or = CAS.HC.
Unit of measurement:
Options: IN.SCL = PID.2 input scale
SP.SCL = PID.2 setpoint scale

4.21.4. PROGR - Enabling the setpoint programmer

Acronym
PROGR PROGRAMMER ENABLE
The parameter shows and sets enabling of the setpoint programmer for models P or PV.
Unit of measurement:
Options: OFF
On1
if model with auxiliary input and function FUNC=PV2, with parameters PID2.E=On and APP.t=2.PID
On2
On.S
Scrolling message
-
= PID.2 disabled
= PID.2 enabled
Scrolling message
-
= For using the two PIDs (1 and 2) independently
Scrolling message
-
Scrolling message
-
= Setpoint programmers 1 and 2 disabled
= Setpoint programmer 1 enabled
= Setpoint programmers 1 and 2 enabled
= Synchronous setpoint programmers 1 and 2 enabled
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Submenu Attributes
EN.FUN R W
Submenu Attributes
EN.FUN R W
Submenu Attributes
EN.FUN R W
Submenu Attributes
EN.FUN R W