Trane TR200 Series Programming Manual page 122

[141] Bus ctrl t.o.
[142] Bus ctrl t.o. 4-20mA
[143] Ext. CL 1 4-20mA
[144] Ext. CL 2 4-20mA
[145] Ext. CL 3 4-20mA
NOTE: Values for setting the Minimum Reference is found in open loop par.3-02
closed loop par.20-13 Minimum Reference/Feedb.
par.3-03 Maximum Reference
6-51 Terminal 42 Output Min Scale
Range:
0.00 %* [0.00 - 200.00 %]
6-52 Terminal 42 Output Max Scale
Range:
100.00 [0.00 - 200.00 %]
%*
TR200 Programming Guide
: 0 - 100%, (0-20 mA)
: 0 - 100%
: 0 - 100%
: 0 - 100%
: 0 - 100%
- values for maximum reference for open loop is found in
and for closed loop par.20-14
Function:
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
Function:
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
It is possible to get a value lower than 20 mA at full scale by programming
values >100% by using a formula as follows:
mA desired maximum current
20 /
mA
20
i e mA
. . 10 :
10 mA
Parameter Description
Minimum Reference
Maximum Reference/Feedb..
Output.
Output.
× 100 %
× 100 % = 200 %
and for
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