NXS Form 63-2600, Users Manual, Technical Data - CONTROL ...

154 Description of Parameters Honeywell
366 Easy changeover 5 (2.2.37)
0 Keep reference
1 Copy reference
If Copy reference has been selected it is possible to switch from direct control to PID
control and back without scaling the reference and actual value.
For example: The process is driven with direct frequency reference (Control place I/O B,
fieldbus or keypad) to some point and then the control place is switched to one where
the PID controller is selected. The PID control starts to maintain that point. The PID
controller error value is forced to zero when the control place is changed.
It is also possible to change the control source back to direct frequency control. In this
case, the output frequency is copied as the frequency reference. If the destination place
is Keypad the run status (Run/Stop, Direction and Reference) will be copied.
The changeover is smooth when the reference of the destination source comes from the
Keypad or an internal motor potentiometer (par. ID332 [PID Ref.] = 2 or 4, ID343 [I/O B
Ref] = 2 or 4, par. ID121 [Keypad Ref] = 2 or 4 and ID122 [Fieldbus Ref]= 2 or 4.
367 Motor potentiometer memory reset (Frequency reference) 3567 (2.2.23,
2.2.28, 2.2.1.3, 2.2.1.16)
0 No reset
1 Memory reset in stop and powerdown
2 Memory reset in powerdown
370 Motor potentiometer memory reset (PID reference) 57 (2.2.29, 2.2.1.17)
0 No reset
1 Memory reset in stop and powerdown
2 Memory reset in powerdown
371 PID reference 2 (Place A additional reference) 7 (2.2.1.4)
If the PID reference 2 enable input function (ID330)= TRUE, this parameter defines
which reference place is selected as PID controller reference.
0 = AI1 reference (terminals 2 and 3, e.g. potentiometer)
1 = AI2 reference (terminals 5 and 6, e.g. transducer)
2 = AI3 reference
3 = AI4 reference
4 = PID reference 1 from keypad
5 = Reference from Fieldbus (FBProcessDataIN3)
6 = Motor potentiometer
7 = PID reference 2 from keypad
If value 6 is selected for this parameter, the functions Motor potentiometer DOWN and
Motor potentiometer UP must be connected to digital inputs (parameters ID417 and
ID418).
372 Supervised analogue input 7 (2.3.2.13)
0 = Analogue reference from AI1 (terminals 2 and 3, e.g. potentiometer)
1 = Analogue reference from AI2 (terminals 4 and 5, e.g. transducer)
Automation and Control Solutions
Honeywell
Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MIN 55422 Scarborough, Ontario 63-2600-1
MIV 4Z9
www.honeywell.com