Siemens Building Technologies O3341(RWD32) V14.doc O3341A031En2 8-Jun-01 Page 5
PS 3 Auxiliary function parameter
Auxiliary number:
Parameter Description
#x1
REM
#x2
LIM
#x3
LIM
#x4
COMP
#x5
CAS
#x6
WIN/SUM
#x7
WIN/SUM
XDZ Dead zone or offset (refer to the above explanation) x
MAX the value to start Limiter cooling/direct acting x x
MIN the value to start Limiter heating/reverse acting x x
XP-h / -r the P-band in Limiter heating/reverse acting x x
XP-c / -d the P-band in Limiter cooling/direct acting x x
TN-h / -r integrating time heating/reverse acting x x x
TN-c / -d integrating time cooling/direct acting x x x
COMP start point heating/reverse acting x
COMP end point heating/reverse acting x
adjustment in heating/reverse acting x
COMP start point cooling/direct acting x
COMP end point cooling/direct acting x
adjustment in cooling/direct acting x
MAX maximum of virtual setpoint x
MIN minimum of virtual setpoint x
XPh1 / r1 1st heating/reverse acting P-band in Cascade x
XPc1 / d1 1st cooling/direct acting P-band in Cascade x
WIN As X2 < WIN, Q1 is reverse acting x
SUM As X2 > SUM, Q1 is direct acting x
T
Time elapsed to allow next winter/summer changeover (Q1
only)
xx
There are no PS3 auxiliary function parameters for applications #8 and #9.
Operating Modes
The controller has three operating buttons for the following functions:
SELECT
●
●●
●
The SELECT
●
●●
●
button is used to enter or save the value adjustment.
The operating buttons are used for viewing and adjusting parameters.
Time-out
For setpoint adjustment in Normal mode, the controller will exit the setting after 20 seconds automatically. However, for setpoint
adjustment in Service (PS) mode, there is no time limit. The controller remains on the PS mode until the user completes the
whole process.
Note
Only those parameters that apply to a particular program appear on the display or in the sequence in programming.
For example, if the second analogue input is not used, X2 values and selections will not appear.
A software tool (S3341A031EN0) for controller application selection and parameter adjustment is available. It is a user-friendly Windows
®
95 (or above) based software tool which provides you a printout of the controller settings.
Parameters can be hidden from display if desired by using the software tool.
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