RWD62U Controller Installation and Commissioning Guide Document Number 129-410
October 1, 2004
Siemens Building Technologies, Inc. Page 5 of 10
Table 2. PS 3 Auxiliary Function Parameter Set-up.
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 Value to start Limiter cooling x x
MIN Value to start Limiter heating x x
XP-h P-band in Limiter heating x x
XP-c P-band in Limiter cooling x x
TN-h Integrating time heating x x x
TN-c Integrating time cooling 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 First heating/reverse acting P-band in Cascade x
XPc1 First cooling/direct acting P-band in Cascade x
WIN As X2 < WIN, Y1 is reverse acting x
SUM As X2 > SUM, Y1 is direct acting x
T
Time elapsed to allow next winter/summer
changeover (Y1 only)
x x
There are no PS3 auxiliary function parameters for applications #x8 and #x9.
Operating Modes
The controller has three operating buttons for the following functions:
SEL
● This button is used to enter or save the value adjustment.
▲ These operating buttons are used for viewing and adjusting
▼ parameters
Time-out
For setpoint adjustment in Normal mode, the controller will automatically exit the setting
after 20 seconds. However, there is no time limit for setpoint adjustment in Service (PS)
mode. The controller remains on the PS mode until the user completes the entire
process.
NOTES: Only those parameters that apply to a particular program appear on the
display or in the sequence in commissioning. For example, if the second
analog input is not used, X2 values and selections will not appear.
A software tool for controller application selection and parameter adjustment
is available (Tool Kit CD, P/N 125-3481). It is a user-friendly Windows
®
95 (or
later)-based software tool which provides you with a printout of the controller
settings. Parameters can be hidden from display by using the software tool.
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