Siemens RWF50 User guide

Mode Recommended Function Comment Notes
Not used
Don't care
”Live setting”
Start of Scale
Not recommended
Value will be overwritten
by Mode 5
Apply Live press to DP,
Hold both ^ and v keys
to set to 4 mA
Not used
Don't care
”Live setting”
Full Scale
Not recommended
Value will be overwritten
by Mode 6
Apply Live press to DP,
Hold both ^ and v keys
to set to 20 mA
0.0
Electronic
damping
Set to 0
(Time in seconds)
(Factory default)
Hold both ^ and v keys
to set to zero
0.00
in H2O
”Blind setting”
Start of Scale Set to 0.00 ( inH2O )
Full tank =
Min differiential =
4 mA output
- 30.00
(see example)
in H2O
"Blind setting”
Full Scale Set to x.xx
( inH2O )
Empty tank =
Max differiential =
20 mA output
(actual measurement)
0.00
Zero
dj t t
Using the 3 Valve Manifold,
Close both isolation valves,
Open bypass valve,
Hold both ^ and v keys
ttt
DP returns to this display after 30 seconds, if no keys are pressed.
Units are determined by Mode 14.
0.00
a
dj
us
t
men
t
Open
bypass
valve,
Hold both ^ and v keys to set to zero,
Re-close b
yp
ass
,
Re-o
p
en isolations
t
o se
t
t
o zero
Cur
Current
transmitter
( Cur )
Displays the current
differential pressure
Hold both ^ and v keys to force an output
of 3.6, 4.0. 12.0, 20.0, 22.8 mA
M key brings you back to Current Value
3.6
Output if
error occurs If an error occurs, you can choose the output Choices are 3.6 mA or 22.8 mA
0
Keys
enable/disable
Set to 0
Choices are
0, LA, LO, L5, L Hold M key for 5 sec to set to zero
Lin
Characteristic Lin means the 4-20 mA output
is Linear Linear is recommended
( N/A )
Characteristic
Sq Root N/A ( normally not shown ) ONLY used/displayed if Mode 11 is Sq Rt
mA
Displayed
Measured
Value
3 choices
(Mode 14 Unit) , %, mA mA is recommended
in H2O
Display
Unit Many choices… inH2O is recommended

Parameter Name Value Range Factory
Setting
Your
Setting
Page
Number
Setpoint 1 SPL…SPH 60
Setpoint 2 SPL…SPH 0
Setpoint s ift SPL…SPH 0
Analog input 1 N/A -
Angular positioning N/A -
Proportional band 1…9999 10
Derivative time 0…9999 sec 80
Integral time 0…9999 sec 350
Dead band 0.0…999.9 1
Controlling element running time 10…3000 sec 15
Switc -on t res old -1999…0.0 -5
Switc -off t res old (stage II) 0.0…HYS3 3
Switc -off t res old 0.0…9999 5
Switc -on t res old 0.0…9999 5
Switc -off t res old (stage II) HYS6…0.0 -3
Switc -off t res old -1999…0.0 -5
Response t res old 0.0…999.9 0 28
SEn1 Analog input 1 sensor type 1…19 → 1
OFF1 Analog input 1 correction (offset) -1999…9999 0
SCL1 Analog input 1 scale low level -1999…9999 0
SCH1 Analog input 1 scale ig level -1999…9999 100
dF1 Analog input 1 filter time constant 0.0…100.0 sec 0.6
Unit Temperature units 1, 2 1
Controller type 1, 2 N/A
Operating action 0, 1 1
Setpoint low limit -1999...9999 0
Setpoint ig limit -1999...9999 100
Lower working range limit -1999…9999 -1999
Upper working range limit -1999…9999 9999
T ermal s ock function 0, 1, 2 0
Ramp slope 0.0…999.9 0
Tolerance band ramp 2*|HYS1|…9999 0
Ramp limit value 0…250 0
Analog output function 0, 1, 4 4
Analog output signal type 0, 1, 2 0
Value w en input is out of range 0…101 % 0
Re-transmit scale low -1999…9999 0
Re-transmit scale ig -1999…9999 100
binF Binary input 1 function 0, 1, 2, 4 0 46
Upper display 0, 1, 4, 6, 7 1
Lower display 0, 1, 4, 6, 7 6
Timeout 0…255 sec 180
Decimal places 0, 1, 2 0
Locking of levels 0, 1, 2, 3 0
44
45
47
34
RWF50 Menu Options
40
42
43
ConF
Cntr
rAFC
0utP
diSP
PArA
dt
HYS3
HYS4
HYS5
HYS6
rt
db
tt
HYS1
HYS2
Pb1
q
InP1lnP
FnCt
oLHi
FnCt
rASL
toLP
rAL
CtYP
CACt
SPL
SPH
oLLo
diSU
diSL
tout
dECP
SiGn
r0ut
0Pnt
End
bin1
Parameters Notes
Only if bin1 = 1
Cannot be edited ere (just a display)
Opr
SP1
SP2
lnP1
Y
dSP
Only if bin1 = 2
Cannot be edited ere (just a display)
RWF 50.2 only
1 = Pt-100 3-wire, 2 = Pt100 2-wire,
3 = Pt1000 3-wire, 4 = Pt1000 2-wire,
5 = Ni1000 3-wire, 6 = Ni1000 2-wire,
7 = 0-135 O m, 15 = 0-20 mA, 16 = 4-20 mA,
17 = DC 0-10 V,18 = DC 0-5 V, 19 = DC 1-5 V
RWF 50.2 only
Only if CACt = 1
Only if CACt = 1
Only if CACt = 1
Only if CACt = 0
0 = no function, 1 = analog input 1,
4 = controller angular position
1 = Celsius, 2 = Fa ren eit
0 = disconnected, 1 = Kelvin/min,
2 = Kelvin/ our
Only appears if FnCt ≠ 0
Only appears if FnCt ≠ 0
1 = 3-position (50.2 only),
2 = modulating (50.3 only)
0 = cooling controller, 1 = eating controller
0 = disconnected, 1 = analog input 1,
4 = controller angular position, 6 = setpoint,
7 = t ermal s ock end value
0 = no lockout, 1 = configuration level,
2 = parameter and configuration level,
3 = keyboard lockout
0 = no decimal place, 1 = one decimal,
2 = two decimals
Only if FnCt = 1
Only if FnCt = 1
0 = no function, 1 = setpoint c angeover,
2 = setpoint s ift,
4 = operating mode c angeover
0 = disconnected, 1 = analog input 1,
4 = controller angular position, 6 = setpoint,
7 = t ermal s ock end value
0 = 0-20 mA, 1 = 4-20 mA, 2 = DC 0-10 V
Output percentage
Only appears if FnCt ≠ 0
CodE
Only if CACt = 0
Only if CACt = 0

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^ĞƚƚŝŶŐ
zŽƵƌ
^ĞƚƚŝŶŐ
WĂŐĞ
EƵŵďĞ
ƌ
^ĞƚƉŽŝŶƚϭ ^W>^W, ϲϬ
^ĞƚƉŽŝŶƚϮ ^W>^W, Ϭ
^ĞƚƉŽŝŶƚ ^W>^W, Ϭ
ŶĂůŽŐ/ŶƉƵƚϭ E Ͳ
ŶĂůŽŐŝŶƉƵƚϮ E Ͳ
ŶĂůŽŐŝŶƉƵƚϯ E Ͳ
džƚĞƌŶĂůƐĞƚƉŽŝŶƚ E Ͳ
ŶŐƵůĂƌƉŽƐŝƚŝŽŶŝŶ
Ő
E Ͳ
WƌŽƉŽƌƚŝŽŶĂůďĂŶĚ ϭϵϵϵϵ ϭϬ
ĞƌŝǀĂƚŝǀĞƚŝŵĞ ϬϵϵϵϵƐĞĐ ϴϬ
/ŶƚĞŐƌĂůƚŝŵĞ ϬϵϵϵϵƐĞĐ ϯϱϬ
ĞĂĚďĂŶĚ ϬϬϵϵϵϵ ϭ
ŽŶƚƌŽůůŝŶŐĞůĞŵĞŶƚƌƵŶŶŝŶŐƚŝŵ
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ϭϬϯϬϬϬƐĞĐ ϭϱ
^ǁŝƚĐŚͲŽŶƚŚƌĞƐŚŽůĚ ͲϭϵϵϵϬϬ Ͳϱ
^ǁŝƚĐŚͲŽĨĨƚŚƌĞƐŚŽůĚ;ƐƚĂŐĞ//
Ϳ
ϬϬ,z^ϯ ϯ
^ǁŝƚĐŚͲŽĨĨƚŚƌĞƐŚŽůĚ ϬϬϵϵϵϵ ϱ
^ǁŝƚĐŚͲŽŶƚŚƌĞƐŚŽůĚ ϬϬϵϵϵϵ ϱ
^ǁŝƚĐŚͲŽĨĨƚŚƌĞƐŚŽůĚ;ƐƚĂŐĞ//
Ϳ
,z^ϲϬϬ Ͳϯ
^ǁŝƚĐŚͲŽĨĨƚŚƌĞƐŚŽůĚ ͲϭϵϵϵϬϬ Ͳϱ
ZĞƐƉŽŶƐĞƚŚƌĞƐŚŽůĚ ϬϬϵϵϵϵ Ϭ ϯϰ
KƵƚƐŝĚĞƚĞŵƉĐƵƌǀĞƉŽŝŶƚ
ϭ
ͲϰϬϭϮϬ ͲϭϬ
ŽŝůĞƌƚĞŵƉĐƵƌǀĞƉŽŝŶƚ
ϭ
^W>^W, ϲϬ
KƵƚƐŝĚĞƚĞŵƉĐƵƌǀĞƉŽŝŶƚ
Ϯ
ͲϰϬϭϮϬ ϮϬ
ŽŝůĞƌƚĞŵƉĐƵƌǀĞƉŽŝŶƚ
Ϯ
^W>^W, ϱϬ
^Ŷϭ ŶĂůŽŐŝŶƉƵƚϭƐĞŶƐŽƌƚLJƉ
Ğ
ϭϭϵї ϭ
K&&ϭ ŶĂůŽŐŝŶƉƵƚϭĐŽƌƌĞĐƚŝŽŶ;ŽĨĨƐĞƚ
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Ͳϭϵϵϵϵϵϵϵ Ϭ
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Ě&ϭ ŶĂůŽŐŝŶƉƵƚϭĨŝůƚĞƌƚŝŵĞĐŽŶƐƚĂŶ
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ϬϬϭϬϬϬƐĞĐ Ϭϲ
hŶŝƚ dĞŵƉĞƌĂƚƵƌĞƵŶŝ
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ϭϮ ϭ
&ŶϮ ŶĂůŽŐŝŶƉƵƚϮĨƵŶĐƚŝŽŶ ϬϭϮϯ Ϭ
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Ě&Ϯ ŶĂůŽŐŝŶƉƵƚϮĨŝůƚĞƌƚŝŵĞĐŽŶƐƚĂŶ
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ϬϬϭϬϬϬƐĞĐ Ϯ
^Ŷϯ ŶĂůŽŐŝŶƉƵƚϯƐĞŶƐŽƌƚLJƉ
Ğ
ϬϭϮ Ϭ
&Ŷϯ ŶĂůŽŐŝŶƉƵƚϯĨƵŶĐƚŝŽŶ Ϭϭ Ϭ
K&&ϯ ŶĂůŽŐŝŶƉƵƚϯĐŽƌƌĞĐƚŝŽŶ;ŽĨĨƐĞƚ
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ϬϬϭϱϬϬƐĞĐ ϭϮϳϴ
ŽŶƚƌŽůůĞƌƚLJƉ
Ğ
ϭϮ ϭ
KƉĞƌĂƚŝŶŐĂĐƚŝŽŶ Ϭϭ ϭ
^ĞƚƉŽŝŶƚůŽǁůŝŵŝ
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Ͳϭϵϵϵϵϵϵϵ Ϭ
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Ͳϭϵϵϵϵϵϵϵ ϭϬϬ
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Ͳϭϵϵϵϵϵϵϵ Ͳϭϵϵϵ
hƉƉĞƌǁŽƌŬŝŶŐƌĂŶŐĞůŝŵŝ
ƚ
Ͳϭϵϵϵϵϵϵϵ ϵϵϵϵ
dŚĞƌŵĂůƐŚŽĐŬĨƵŶĐƚŝŽŶ ϬϭϮ Ϭ
ZĂŵƉƐůŽƉĞ ϬϬϵϵϵϵ Ϭ
dŽůĞƌĂŶĐĞďĂŶĚƌĂŵ
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ϮΎ,z^ϭϵϵϵϵ Ϭ
ZĂŵƉůŝŵŝƚǀĂůƵĞ ϬϮϱϬ Ϭ
ůĂƌŵůŝŵŝƚĨƵŶĐƚŝŽŶ ϬϭϮ Ϭ
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^ǁŝƚĐŚŝŶŐĚŝĨĨĞƌĞŶĐĞ;ŚLJƐƚĞƌĞƐŝƐͿ Ϭϵϵϵϵ ϭ
KƵƚŽĨƌĂŶŐĞƌĞƐƉŽŶƐ
Ğ
Ϭϭ Ϭ
ŶĂůŽŐŽƵƚƉƵƚĨƵŶĐƚŝŽŶ ϬϭϮϯϰ ϰ
ŶĂůŽŐŽƵƚƉƵƚƐŝŐŶĂůƚLJƉ
Ğ
ϬϭϮ Ϭ
sĂůƵĞǁŚĞŶŽƵƚŽĨƌĂŶŐ
Ğ
ϬϭϬϭ Ϭ
ZĞͲƚƌĂŶƐŵŝƚƐĐĂůĞůŽǁ Ͳϭϵϵϵϵϵϵϵ Ϭ
ZĞͲƚƌĂŶƐŵŝƚƐĐĂůĞŚŝŐŚ Ͳϭϵϵϵϵϵϵϵ ϭϬϬ
ŝŶĂƌLJŝŶƉƵƚϭĨƵŶĐƚŝŽŶ ϬϭϮϯ Ϭ
ŝŶĂƌLJŝŶƉƵƚϮ ϰ ϰ
hƉƉĞƌĚŝƐƉůĂLJ ϬϭϮϯϰϲϳ ϭ
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dŝŵĞŽƵƚ ϬϮϱϱƐĞĐ ϭϴϬ
ĞĐŝŵĂůƉůĂĐĞƐ ϬϭϮ Ϭ
>ŽĐŬŝŶŐŽĨůĞǀĞůƐ ϬϭϮϯ Ϭ
ĂƵĚƌĂƚĞ ϬϭϮϯ ϭ
DŽĚďƵƐĂĚĚƌĞƐƐ ϬϮϱϰ ϭ
WƌŽĨŝďƵƐĂĚĚƌĞƐƐ ϬϭϮϱ ϭϮϱ
ZĞŵŽƚĞĚĞƚĞĐƚŝŽŶƚŝŵĞ
ƌ
ϬϳϮϬϬƐĞĐ ϯϬ
ϰсŽƉĞƌĂƚŝŶŐŵŽĚĞĐŚĂŶŐĞŽǀĞ
ƌ
ϬсĚŝƐĐŽŶŶĞĐƚĞĚϭсĂŶĂůŽŐŝŶƉƵƚϭϮсĂŶĂůŽŐŝŶƉƵƚϮ

ϯсĂŶĂůŽŐŝŶƉƵƚϯϰсĐŽŶƚƌŽůůĞƌĂŶŐƵůĂƌƉŽƐŝƚŝŽŶ
ϲсƐĞƚƉŽŝŶƚϳсƚŚĞƌŵĂůƐŚŽĐŬĞŶĚǀĂůƵĞ
ϬсĚŝƐĐŽŶŶĞĐƚĞĚϭсĂŶĂůŽŐŝŶƉƵƚϭϮсĂŶĂůŽŐŝŶƉƵƚϮ

ϯсĂŶĂůŽŐŝŶƉƵƚϯϰсĐŽŶƚƌŽůůĞƌĂŶŐƵůĂƌƉŽƐŝƚŝŽŶ
ϲсƐĞƚƉŽŝŶƚϳсƚŚĞƌŵĂůƐŚŽĐŬĞŶĚǀĂůƵĞ
ϬсŶŽĚĞĐŝŵĂůƉůĂĐĞϭсŽŶĞĚĞĐŝŵĂůϮсƚǁŽĚĞĐŝŵĂů
Ɛ
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Valve Selection
The recommended valve for a feedwater application is a Siemens Flowrite VF 599 series, two-way, normally closed, high-
temperature, with an ANSI class pressure rating of 250 lbs. This is a Class IV valve, which means it has an allowable
leakage rate of .01% of rated flow at installed dP. A Valve is typically sized for two requirements; flow rate in GPM (usually
1.1 to 1.5 times the maximum flow rate to the boiler) and the available differential pressure in PSI.
Example:
A 40 GPM flow rate with a differential pressure of 6 PSI, suggests a 1-1/4” bronze valve with a CV of 16, and 3 / 4” stroke.
The system must be designed so that the maximum pump pressure on start up, (no pressure in boiler) when the valve is
closed does not exceed the maximum rated close off differential pressure rating of the valve body.
Please see Technical Instructions for maximum pressure rating vs. temperature, and capacity graph.
Electric Actuators Selection
The valve selected above can then be combined with a Siemens Flowrite EA 599 series, 24VAC, Electronic Proportional
Control actuator. The actuator housings are all rated NEMA 1, all accept 4-20 mA inputs, and can be configured for normal
or reverse acting. Refer to the chart below for actuator, order number, stroke, force, and run time.
Order Number Stroke Force Run time Technical
Instructions Installation Instructions
SKD 62UA 3/4" 20mm 225 lbs. 30 sec 129-369
1-1/2" 40mm 120 sec
SKC 62UA 3/4" 20mm 640 lbs. 60 sec
SKB 62UA 3/4" 20mm 640 lbs. 120 sec
155-717 129-368
CCxx-Feedwater 05.12.2003 Siemens Building Technologies
- Pg 3 of 6 HVAC Products
Preliminary