Main Menu - Data Readouts 2 - Group; Main Menu - Fc Closed Loop - Group - Trane TR150 Programming Manual

Parameters

3.13 Main Menu - Data Readouts 2 - Group

18
Parameters in this group are array parameters, where up to
10 fault logs can be viewed. [0] is the most recent logged
data, and [9] the oldest. Error codes, values, and time
stamp can be viewed for all logged data
3.13.1 18-1* Fire Mode Log
18-10 FireMode Log:Event
Range: Function:
0 [0 - 255 ] View Firemode event.
*

3.14 Main Menu - FC Closed Loop - Group

20
This parameter group is used for configuring the closed
loop PI Controller, that controls the output frequency of
the frequency converter.
3.14.1 20-0* Feedback
This parameter group is used to configure the feedback
signal for the frequency converter's closed loop PI
Controller.
20-00 Feedback 1 Source
Option: Function:
This parameter defines which input is
used as the source of the feedback
signal.
[0] No function
*
[1] Analog Input 53
[2] Analog Input 54
[3] Pulse input 29
[100] Bus Feedback 1
20-01 Feedback 1 Conversion
Option: Function:
This parameter allows a conversion function to
be applied to Feedback 1.
[0] Linear [0] Linear has no effect on the feedback.
*
[1] Square [1] Square root is commonly used when a
root pressure sensor is used to provide flow feedback
flow pressure
( ( ∝
TR150 Programming Guide
) ).
BAS-SVP16A-EN - Rev. 2013-09-05
3.14.2 20-8* PI Basic Settings
Parameters for configuring the Process PI control.
20-81 PI Normal/ Inverse Control
Option: Function:
[0] Normal Causes the frequency converter's output frequency
*
to decrease when the feedback is greater than the
setpoint reference. This is common for pressure-
controlled supply fan and pump applications.
[1] Inverse Causes the frequency converter's output frequency
to increase when the feedback is greater than the
setpoint reference. This is common for
temperature-controlled cooling applications, such
as cooling towers.
20-83 PI Start Speed [Hz]
Range: Function:
0 Hz [ 0 - Enter the motor speed to be attained as a start
*
200.0 signal for commencement of PI control. Upon
Hz] power up, the frequency converter operates
using speed open loop control. When the
Process PI start speed is reached, the frequency
converter changes to PI control.
20-84 On Reference Bandwidth
Range: Function:
5 % [0 - When the difference between the feedback and the
*
200 setpoint reference is less than the value of this
%] parameter, the frequency converter's display shows
"Run on Reference". This status can be
communicated externally by programming the
function of a digital output for [8] Run on
Reference/No Warning. In addition, for serial
communications, the On Reference status bit of the
frequency converter's Status Word is high (1).
The On Reference Bandwidth is calculated as a
percentage of the setpoint reference.
3.14.3 20-9* PI Controller
20-91 PI Anti Windup
Option: Function:
[0] Off Continue regulation of an error even when the output
frequency cannot be increased or decreased.
[1] On Cease regulation of an error when the output
*
frequency can no longer be adjusted.
20-93 PI Proportional Gain
Range: Function:
0.50 [0 - Enter the process controller proportional gain.
*
10 ] Quick control is obtained at high amplification.
However if amplification is too great, the
process may become unstable.
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