Lennox Core Unit Controller Setup Manual page 68

Control
Parameter Screen Name
No
342 GP A02 SOURCE
GP A02 CYCL
343
INTRVL
344 GP A03 MODE
345 GP A03 SP A
346 GP A03 SP B
347 GP A03 STG A
348 GP A03 STG B
349 GP A03 OUTPUT
GP A03 PWM
350
FREQ
351 GP A03 KP
352 GP A03 KI
GP A03 MIN
354
OUPUT
Table 12. CORE Control System Unit Parameters
Parameter Short
Description
Min.
General Purpose
1
A02 Source
General Purpose
0
A02 Cycle Interval
General Purpose
0
A03 Mode
General Purpose
0
A03 Set Point A
General Purpose
0
A03 Set Point B
General Purpose
0
A03 Stage A
General Purpose
0
A02 Stage B
General Purpose
0
A03 Output
General Purpose
A03 Pulse-Width
50
Modulation
Frequency
General Purpose
A03 Proportional 0
Constant
General Purpose
A03 Integral 0
Constant
General Purpose
A03 Minimum 0
Output
Control Value
Default Max.
1 3 Selection
1 180 Seconds
0 11
Selection
0 100
0 100
0 100
0 100
0 1 Selection
200 2000
0 100
0 100
0 100
68
Units Description
Source/feedback for the PID loop.
• 1 = Analog input 1 on GP3 A02
• 2 = Analog input 2 on GP3 A02
• 3 = Analog input 3 on GP3 A02
Frequency of execution of PID loop.
• 1 - Occupied - PID set point A;
Unoccupied - PID set point B
• 2 - Occupied - PID set point A;
Unoccupied -Staged output B
• 3 - Occupied - Staged output A;
Unoccupied - PID set point B
• 4 - Occupied - Staged output A;
Unoccupied - Staged output B
• 5 - Blower On - PID set point A;
Blower Off - PID set point B
• 6 - Blower On - PID set point A;
Blower Off - Staged output B
• 7 - Blower On - Staged output A;
Blower Off - PID set point B
Mode
• 8 - Blower On - Staged output A;
Blower Off - Staged output B
• 9 - DI2 on - PID set point B (1); DI3
on - PID set point A (2); Otherwise
off.
• 10 - DI2 on - PID set point B (1); DI3
on - Staged Output A (2); Otherwise
off.
• 11 - DI2 on - PID set point B (1); DI3
on - Staged Output A (2); Otherwise
off.
• 12 - Reserved
• (1) -DI3 (on M3) doesn't matter
• (2) -DI2 (on M3) is off
% Analog output channel 3, set point A.
% Analog output channel 3, set point B.
% Analog output channel 3, stage A
% Analog output channel 3, stage B
• 0 = PWM
• 1 = 0-10 VDC
Hz Frequency of execution of PID loop.
Analog output channel 3 PID loop
Count
proportional constant.
Analog output channel 3 PID loop integral
Count
constant.
% Analog output channel 3 minimum output.