Display Explanation - Siemens RWD44U Installation And Commissioning Manual

RWD44U Controller Installation and Commissioning Guide

Display Explanation

Symbol Description
Adjustable setting screen
+
-
10 Application No
#
Day time operation

Night time operation

X1 Universal (Main) Input X1
°C Celsius scale
°F Fahrenheit scale
K Kelvin
Q Digital outputs
R/V Reversing valve status = On
Standby mode
"OFF" Controller = Off
"ON" Controller = on standby
SD Switching Differential
T Minimum switch on time
ON
for Q
T FF Minimum switch off time
O
for Q
Setpoint reset shift
(Start point, End point and
Shift differential)
SUM Summer changeover point
WIN Winter changeover point
Unit Define unit
X1NI 1000
X1 is Ni 1000 Ω temperature
sensor
X2NI 1000
X2 is Ni 1000 Ω temperature
sensor
X1Pt 1000
X1 is Pt 1000 Ω temperature
sensor
X2Pt 1000
X2 is Pt 1000 Ω temperature
sensor
X2SP Remote setpoint
X2Vr Variable Resistor
Siemens Industry, Inc.
Setting Range
10 through 39
Ni 1000 Ω: -58°F to 302°F
(-50°C to 150°C)
(unchangeable)
Pt 1000 Ω: -4°F to 356°F
(-20°C to 180°C)
(unchangeable)
0 to 10 Vdc: -100 to 2400
PS 4 – Differentials and Delays
0.1 K to 50 K
0 to 4,096 sec
0 to 4,096 sec
PS 3 - Auxiliary Control Loop Set-up
PS 2 - Unit, X1 and X2 Sensor Type and Sensing Range Definition
°C or °F
Ni 1000 Ω: -58°F to 302°F
(-50°C to 150°C) (unchangeable)
Ni 1000 Ω: -58°F to 302°F
(-50°C to 150°C) (unchangeable)
Pt 1000 Ω: -4°F to 356°F
(-20°C to 180°C) (unchangeable)
Pt 1000 Ω: -4°F to 356°F
(-20°C to 180°C) (unchangeable)
0 Vdc to 10 Vdc or 0 to 1000 Ω
0 Ω to 1000 Ω
Symbol Description
Main Screen
TOOL PC communication port
being used
OUT RANGE The setting is out of range
Err Sensor error
Sec Seconds
X2 Universal (Auxiliary) Input
Cooling
Heating
SP-h Setpoint on the heating side
for temperature control
SP-c Setpoint on the cooling side
for temperature control
Output status = Off
Output status = On
TD
Time Delay from heat ⇔
cool
TD Time Delay for next
stage ON
Setpoint reset shift
(Start point, End point and
Shift differential)
Time delay from Winter ⇔
Summer changeover point
D1 Digital input function
ΔX1 Calibration offset for X1
(Ni and Pt sensor only)
ΔX2 Calibration offset for X2
(Ni & Pt sensor only)
X1L Start point of the X1
(for 0 Vdc to 10 Vdc only)
X2L Start point of the X2
(for 0 Vdc to 10 Vdc only)
X1H Stop point of the X1
(for 0 Vdc to 10 Vdc only)
X2H Stop point of the X2
(for 0 Vdc to 10 Vdc only)
Document Number 129-408
October 5, 2009
Setting Range
Ni 1000 Ω: -58°F to
302°F (-50°C to 150°C)
(unchangeable)
Pt 1000 Ω: -4°F to 356°F
(-20°C to 180°C)
(unchangeable)
0 Vdc to 10 Vdc: -100 to
2400
Variable resistor: The
resistance range should
be within 0 Ω to 1000 Ω
0 to 4,096 sec
0 to 4,096 sec
-5 K to 5 K or
-9°F to 9°F
-5 K to 5 K or
-9°F to 9°F
-100 to 2400
-100 to 2400
-100 to 2400
-100 to 2400
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