Flowserve 505si User Manual
User Instructions Logix 505si - LGENIM0505-00 03/09
®
USER INSTRUCTIONS
Logix 505si Series
Digital Positioner
FCD LGENIM0505-00 03/09
Installation
Operation
Maintenance
Experience In Motion
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User Instructions Logix 505si - LGENIM0505-00 03/09
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Table of Content Page
General Information .................................................... 2
Unpacking ................................................................... 3
Logix 505si Overview ................................................. 4
Specifications .............................................................. 4
Principle of Operation ................................................. 5
Tubing ......................................................................... 5
Wiring ......................................................................... 6
Startup ........................................................................ 7
Logix 505si Local Interface Operation .................... 7
Operation of Configuration Dipswitch Setup .......... 7
Setup of the Cal Dipswitches ................................. 8
Quick-Cal Operation ............................................... 8
Factory Reset ......................................................... 8
Error Codes ................................................................. 9
Trouble Shooting ......................................................... 11
Spare parts ................................................................. 12
Dimensions ................................................................. 14
1 USING FLOWSERVE VALVES, ACTUATORS AND
ACCESSORIES CORRECTLY
1.1 Using
The following instructions are designed to assist
in unpacking, installing and performing maintenance as required on FLOWSERVE products.
Product users and maintenance personnel should
thoroughly review this bulletin prior to installing,
operating or performing any maintenance.
In most cases FLOWSERVE valves, actuators
and accessories are designed for specific applications (e.g. with regard to medium, pressure,
temperature). For this reason they should not be
used in other applications without first contacting
the manufacturer.
1.2 Terms concerning safety
The safety terms DANGER, WARNING, CAU-
TION and NOTE are used in these instructions
to highlight particular dangers and/or to provide
additional information on aspects that may not
be readily apparent.
WARNING: indicates that death, severe personal injury
and/or substantial property damage can occur if proper
precautions are not taken.
CAUTION: indicates that minor personal injury and/or
property damage can occur if proper precautions are
not taken.
NOTE: indicates and provides additional technical
information, which may not be very obvious even to
qualified personnel.
Compliance with other, not particularly emphasised
notes, with regard to transport, assembly, operation
and maintenance and with regard to technical documentation (e.g. in the operating instruction, product
documentation or on the product itself) is essential,
in order to avoid faults, which in themselves might
directly or indirectly cause severe personal injury or
property damage.
1.3 Protective clothing
FLOWSERVE products are often used in problem-
atic applications (e.g. extremely high pressures,
dangerous, toxic or corrosive mediums). In particular
valves with bellows seals point to such applications.
When performing service, inspection or repair operations always ensure, that the valve and actuator are
depressurised and that the valve has been cleaned and
is free from harmful substances. In such cases pay
particular attention to personal protection (protective
clothing, gloves, glasses etc.).
1.4 Qualified personnel
Qualified personnel are people who, on account of their
training, experience and instruction and their knowledge of relevant standards, specifications, accident
prevention regulations and operating conditions, have
been authorised by those responsible for the safety of
the plant to perform the necessary work and who can
recognise and avoid possible dangers.
1.5 Installation
DANGER: Before installation check the order-no, serial-
no. and/or the tag-no. to ensure that the valve/actuator
is correct for the intended application.
Do not insulate extensions that are provided for hot
or cold services.
Pipelines must be correctly aligned to ensure that the
valve is not fitted under tension.
DANGER: indicates that death, severe personal
injury and/or substantial property damage will
occur if proper precautions are not taken.
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Fire protection must be provided by the user.
User Instructions Logix 505si - LGENIM0505-00 03/09
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1.6 Spare parts
Use only FL OWSERVE original spare parts.
FLOWSERVE cannot accept responsibility for any
damages that occur from using spare parts or
fastening materials from other manufactures. If
FLOWSERVE products (especially sealing materials)
have been on store for longer periods check these
for corrosion or deterioration before using these
products. Fire protection for FLOWSERVE products
must be provided by the end user.
1.7 Service / repair
To avoid possible injury to personnel or damage to
products, safety terms must be strictly adhered to.
Modifying this product, substituting nonfactory parts,
or using maintenance procedures other than outlined
in this instruction could drastically affect performance
and be hazardous to personnel and equipment, and
may void existing warranties. Between actuator
and valve there are moving parts. To avoid injury
FLOWSERVE provides pinch-point-protection in the
form of cover plates, especially where side-mounted
positioners are fitted. If these plates are removed
for inspection, service or repair special attention is
required. After completing work the cover plates must
be refitted.
1.9 Valve and actuator variations
These instructions cannot claim to cover all details of
all possible product variations, nor in particular can
they provide information for every possible example of
installation, operation or maintenance. This means that
the instructions normally include only the directions to
be followed by qualified personal where the product
is being used for is defined purpose. If there are any
uncertainties in this respect particularly in the event
of missing product-related information, clarification
must be obtained via the appropriate FLOWSERVE
sales office.
2 UNPACKING
Each delivery includes a packing slip. When unpacking,
check all delivered valves and accessories using this
packing slip.
Report transport damage to the carrier immediately.
In case of discrepancies, contact your nearest
FLOWSERVE location.
Apart from the operating instructions and the
obligatory accident prevention directives valid in the
country of use, all recognised regulations for safety
and good engineering practices must be followed.
WA R N I N G : Before products ar e returned to
FLOWSERVE for repair or service FLOWSERVE must
be provided with a certificate which confirms that
the product has been decontaminated and is clean.
FLOWSERVE will not accept deliveries if a certificate
has not been provided (a form can be obtained from
FLOWSERVE).
1.8 Storage
In most cases FLOWSERVE products are manufactured
from stainless steel. Products not manufactured
from stainless steel are provided with an epoxy resin
coating. This means that FLOWSERVE products
are well protected from corrosion. Nevertheless
FLOWSERVE products must be stored adequately
in a clean, dry environment. Plastic caps are fitted
to protect the flange faces to prevent the ingress of
foreign materials. These caps should not be removed
until the valve is actually mounted into the system.
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3 LOGIX 505si OVERVIEW
The Logix 505si is a two-wire, 4-20 mA input digital
valve positioner. The Logix 505si positioner controls
single-acting actuators with linear and rotary mountings. The Logix 505si is completely powered by the 4-20
mA input signal. The minimum input signal required to
function is 3,6 mA.
Since the positioner is insensitive to supply pressure
changes and can handle supply pressures from 1,5 to
6 barg (22 to 87 psig), a supply regulator is usually not
required; however, in applications where the supply
pressure is higher than the maximum actuator pressure rating a supply regulator is required to lower the
4 SPECIFICATIONS
User Instructions Logix 505si - LGENIM0505-00 03/09
pressure to the actuator’s maximum rating (not to be
confused with operating range). A coalescing air filter
is recommended for all applications due to the close
tolerances in the positioner.
NOTE: The air supply must conform to ISA 7.0.01or
IEC 770 (a dew point at least 10 ˚C / 18 ˚F below ambient temperature, particle size below five microns – one
micron recommended – and oil content not to exceed
one part per million).
Table 1: Input Signal
Input Signal Range 4 - 20 mA
Compliance Voltage 6 VDC
Voltage Supply (maximum) 30 VDC
Minimum Required Operating
Current
Table 2: Stroke Output
Feedback Shaft Rotation Min. 15°, max 90°
Table 3: Air Supply
Air Supply Quality Free from moisture, oil and dust
Input Pressure Range 1,5 to 6,0 bar (22 to 87 psi)
Air Consumption (steady state)
3,6 mA
40° recommended for linear
applications
per IEC 770 and ISA-7.0.01
0,08 Nm³/h @ 1,5 bar
(0,047 SCFM @ 22 psi)
0,12 Nm³/h @ 6,0 bar
(0,071 SCFM @ 87 psi)
Table 5: Shipping Weights
Base Positioner without
Accessories
Table 6: Performance Characteristics (typical)
Linearity < +/- 1,0%
Resolution < 0,3%
Repeatability < 0,5%
Deadband < 0,5%
Table 7: Environmental Conditions
Operating Temperature
Standard
Operating Temperature
Low
Transport and Storage
Temperature
Operating Humidity 0 to 100% non-condensing
1,2 kg (2,65 lbs)
-20 °C to +80 °C
(-4 °F to +178 °F)
-40 °C to +80 °C
(-40 °F to +178 °F)
-40 °C to +80 °C
(-40 °F to +178 °F)
Table 4: Output Signal
Output Pressure Range 0 to 100% of air supply pressure
Output Flow Capacity 2,4 Nm³/h @ 1,5 bar
(1,41 SCFM @ 22 psi)
7,0 Nm³/h @ 6,0 bar
(4,12 SCFM @ 87 psi)
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Table 8: Hazardous Area Specifications
ATEX II 1G Ex ia II C T6
ATEX II 3G Ex nL nA II C T4
User Instructions Logix 505si - LGENIM0505-00 03/09
Local
User
Interface
4 – 20 mA
Stroke
Inner Loop
Position Feedback
1 Digital Control Circuit
2 Electro-pneumatic
Converter Module
3 Valve Position
Sensor
Inner Loop
Piezo Control
Filter / Regulator
for Supply Air
1.5 – 6.0 bar (22 – 87 psi)
Air Supply
-
Micro-
Processor
Pressure Regulator
Piezo Valve
Pneumatic
Amplifier
Control Valve
+
Input
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Figure 1: Logix 505si Principle of Operation
5 PRINCIPLE OF OPERATION
The Logix 505si positioner is a basic digital positioner
consisting of three main modules:
1. The microprocessor based electronic control
module includes direct local user interface switches
2. The piezo valve based electro-pneumatic converter
module
3. The infinite resolution valve position sensor.
The basic positioner operation is best understood by
referring to Figure 1. The complete control circuit is
powered by the two-wire, 4-20 mA command signal. The
analog 4-20 mA command is passed to the microprocessor, where it is compared to the measured valve stem position. The control algorithm in the processor performs
control calculations and produces an output command
to the piezo valve, which drives the pneumatic amplifier.
The position of the pilot valve in the pneumatic amplifier
is measured and relayed to the inner loop control circuit.
This two-stage control provides for more responsive
and tighter control than is possible with a single stage
control algorithm. The pneumatic amplifier controls
the airflow to the actuator. The change of pressure and
volume of the air in the actuator causes the valve to
stroke. As the valve approaches the desired position,
the difference between the commanded position and
the measured position becomes smaller and the output
to the piezo is decreased. This, in turn, causes the pilot
valve to close and the resulting flow to decrease, which
slows the actuator movement as it approaches the new
6 TUBING POSITIONER TO ACTUATOR
After mounting has been completed, tube the positioner
Air connections: 1/4” NPT (standard air connection)
Auxiliary power: Pressurized air or permissible gases,
Pressure range: 1,5 – 6,0 bar (22 – 87 psi)
For connecting the air piping, the following notes should
1. The positioner passageways are equipped with
2. Supply air should meet IEC 770 or ISA 7.0.01
3. With a maximum supply pressure of 6 bar (87 psi)
4. With a n operating pressure of more than
commanded position. When the valve actuator is at the
desired position, the pneumatic amplifier output is held
at zero, which holds the valve in a constant position.
to the actuator using the appropriate compression fitting connectors:
free of moisture and dust in according with IEC 770 or
ISA 7.0.01.
be observed:
screws, which remove medium and coarse size dirt
from the pressurized air. If necessary, they are easily
accessible for cleaning.
requirements. A coalescing filter should be installed in
front of the supply air connection Z. Now connect the
air supply to the filter, which is connected to the Logix
500 Series positioner.
a regulator is not required.
6 bar (87 psi), a reducing regulator is required. The
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