Spirax Sarco SX25 Series Manuale utente
IM-P323-25 CH Issue 3 1
SX25 Series Process Controller
Installation and Maintenance Instructions
IM-P323-25
CH Issue 3
3231450/3
1. Safety Information
2. Installation
3. Electrical connections
4. Configuration
5. Operations
6. Commissioning examples
7. utomatic tuning
8. Technical specifications
Printed in the UK © Copyright 2003
IM-P323-25 CH Issue 3
2
IM-P323-25 CH Issue 3 3
1. Safety Information
1.1 General
1.2 Wiring Notes
1.3 Safety requirements and electromagnetic
compatibility
2. Installation
2.1 General description
2.2 Dimensional details
2.3 Panel cut-out
2.4 Environmental ratings
2.5 Panel mounting
3. Electrical connections
3.1 Termination
3.2 Precautions and advised conductor course
3.3 Wiring details
3.4 Wiring examples
3.5 Auxiliary relays for Valve Motor Drive actuators
4. Configuration
4.1 Configuration coding
5. Operations
5.1 Keys and display overview
5.2 Display
5.3 Parameter setting
5.4 Parameter menu
5.5 Parameter description
5.6 Configuration menu
6. Commissioning examples
6.1 Example of pressure control for SX25-mA
6.2 Example of temperature control for SX25-VMD
7. Automatic tuning
8. Technical specification
General Index
IM-P323-25 CH Issue 3
4
1.1 General
Please carefully read through the following before proceeding with the installation of the controller.
Your attention is drawn to Safety Information leaflet IM-GCM-10.
If the controller is handled improperly or not used as specified, the resultant may:
cause danger of the life and limb of the third party,
damage the controller and other assets belonging to the owner,
hinder the performance of the controller and control system.
1.2 Wiring notes
Every effort has been made during the design of the controller to ensure the safety of the user, but the following
precautions must be followed:-
i) Maintenance personnel must be suitably qualified in working with equipment containing hazardous live voltages.
ii) Ensure correct installation. Safety may be compromised if the installation of the product is not carried out as
specified in this manual.
iii) Isolate the controller from the mains supply before opening the unit.
iv) The controller is designed as an installation category II product, and is reliant on the building installation for over-
current protection and primary isolation.
v) Wiring should be carried out in accordance with IEC 60364 or equivalent. For installations in the US and Canada,
the controller must be wired in accordance with the Local and National Electrical Code (NEC) or the Canadian
Electrical Code (CEC).
vi) Fuses should be fitted in all phases. The instrument is protected with an internal fuse PTC, thermal protective
device. To protect the instruments internal circuits use 2A T fuses for Relay outputs and 1A T fuses for Triac
outputs. The Relay contacts are already protected with varistors. Fuses should not be fitted in the protective
earth conductor. The disconnection or removal of other equipment must not compromise the integrity of the
installation protective earth system.
vii) The mains cable connection at the rear of the controller must be retained in position (by tie wrapping Etc.) This will
prevent the high voltage cables at the rear of the controller from touching the SELV (Safe Extra Low Voltage)
connections, in the unlikely event of the terminals coming loose.
1. Safety Information
IM-P323-25 CH Issue 3 5
viii) A disconnecting device (switch or circuit breaker) must be included in the building installation. This must be
in close proximity to the equipment and within easy reach of the operator.
There must be a 3 mm contact separation in all poles.
It must be marked as the disconnecting device for the controller.
It must not interrupt the protective earth conductor.
It must not be incorporated into a mains supply cord.
The requirements for the disconnecting device are specified in IEC 60947-1 and IEC 60947-3 or equivalent.
ix) The controller must not be located in such a way that the disconnecting device is made difficult to operate.
1.3 Safety requirements and electromagnetic compatibility
This product is CE marked. It complies with the requirements of 73/23/EEC as ammended by 93/68/EEC on the
harmonisation of the law of Member States relating to electrical equipment designed for use within certain voltage
limits, by meeting the standard EN 61010-1 (IEC 601010-1):90 +A1:92 + A2:95
This product complies with the requirement of 89 / 336/ EEC as amended by 92/ 31/ EEC on the approximation of
laws of the Member States relating to Electromagnetic Compatibility, by meeting the standards of :
EN 50081-2 (Industrial Emissions)
EN 61000-6-2 (Industrial immunity)
The product may be exposed to interference above the limits of EN 61000-6-2 if:
The product or its wiring is located near to a radio transmitter.
Excessive electrical noise occurs on the mains supply.
Cellular telephones and mobile radios may cause interference if used within approximately one metre of the
product or its wiring. The actual separation necessary will vary according to the power of the transmitter.
Power line protectors (ac) should be installed if mains supply noise is likely.
Protectors can combine filtering, suppression, surge and spike arrestors.
IM-P323-25 CH Issue 3
6
2. Installation
2.1 General description
Installation must only be carried
out by qualified personnel.
Before proceeding with the installation
of this controller, follow the instructions
illustrated in this manual and,
particularly the installation precautions
marked with the symbol, related
to the European Community directive
on electrical safety and electromagnetic
compatibility.
To prevent hands or metal touching
parts that may be electrically live, the
controllers must be installed in an
enclosure and/or in a cubicle.
IM-P323-25 CH Issue 3 7
2.2 Dimensional details 2.3 Panel cut-out
IM-P323-25 CH Issue 3
8
2.4 Environmental ratings
Operating conditions
Altitude up to 2 000 m (6 561 ft)
Temperature 0...50°C (32...122°F)
Relative humidity 5...95% non-condensing
Special conditions Suggestions
Temperature >50°C
Humidity > 95%
Conducting atmosphere Use filter
Warm up
Use forced air ventilation
Forbidden conditions
Corrosive atmosphere
Explosive atmosphere
%Rh
%Rh
IM-P323-25 CH Issue 3 9
2.5 Panel mounting
1Prepare panel cut-out
2Check front panel gasket position
3Insert the instrument through
the cut-out
1Fit the mounting clamps
2Push the mounting clamps towards
the panel surface to secure the
instrument
1Push and
2pull to remove the instrument
Electrostatic discharges can damage
the instrument
Before removing the
instrument the operator must
discharge himself to ground
1Insert the screwdriver in the
clips of the clamps
2Rotate the screwdriver
2.5.1 Insert the instrument 2.5.2 Installation securing 2.5.3 Clamps removing
2.5.4 Instrument unplugging
UL note:
For use on a flat surface
of a Type 2 and Type 3
'raintight' enclosure.
IM-P323-25 CH Issue 3
10
3. Electrical connections
3.1 Termination Unit
SX25-VMD
Output onOP1:
OP3:
SX25-mA
Output on OP4: mA
Pt 100
VMD
t
VMD
OP4 mA
(SX25 mA ONLY)
t
t
t
Terminals
Pin connector
q 1.4 mm
0.055 in max
Fork-shape
AMP 165004
Ø5.5 mm - 0.21 in
Stripped wire
L 5.5 mm - 0.21 in
18 screw terminals
Option terminals
Holding screw
0.5 N m
Positive screw
driver PH1
Negative screw
driver 0.8 x 4 mm
UL note:
Use 60/70°C (140/158°F)
copper (cu) conductor only.
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