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Trane TR200 Series - Page 122

Trane TR200 Series
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[141] Bus ctrl t.o. : 0 - 100%, (0-20 mA)
[142] Bus ctrl t.o. 4-20mA : 0 - 100%
[143] Ext. CL 1 4-20mA : 0 - 100%
[144] Ext. CL 2 4-20mA : 0 - 100%
[145] Ext. CL 3 4-20mA : 0 - 100%
NOTE: Values for setting the Minimum Reference is found in open loop par.3-02
Minimum Reference and for
closed loop par.20-13
Minimum Reference/Feedb. - values for maximum reference for open loop is found in
par.3-03
Maximum Reference and for closed loop par.20-14 Maximum Reference/Feedb..
6-51 Terminal 42 Output Min Scale
Range: Function:
0.00 %* [0.00 - 200.00 %] Scale for the minimum output (0 or 4 mA) of the analog signal at terminal
42.
Set the value to be the percentage of the full range of the variable se-
lected in par.6-50
Terminal 42 Output.
6-52 Terminal 42 Output Max Scale
Range: Function:
100.00
%*
[0.00 - 200.00 %] Scale for the maximum output (20 mA) of the analog signal at terminal
42.
Set the value to be the percentage of the full range of the variable selec-
ted in par.6-50
Terminal 42 Output.

It is possible to get a value lower than 20 mA at full scale by programming
values >100% by using a formula as follows:
20
mA
/
desired
maximum
current
× 100 %
i
.
e
. 10
mA
:
20
mA
10
mA
× 100 % = 200 %
Parameter Description
TR200 Programming Guide 121

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