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3 . 635 . 5275 . 251 IM-P486-14 EMM Issue 2 PLC Control Unit for CSM-PD Pre-heating and Degassing Systems Installation, operation and Maintenance Manual 1. Safety information 2. General product information 3. Control unit 4. Control features 5. External connections 6.
The products have been specifically designed for use on steam, air or condensate, which are in Group 2 of the above mentioned Pressure Equipment Directive. The products' use on other fluids may be possible but, if this is contemplated, Spirax Sarco should be contacted to confirm the suitability of the product for the application being considered.
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(litres) by pressure (bar) or from the multiplication of DN (rated diameter) by design pressure. Model Category CSM-PD500 CSM-PD1000 CSM-PD2000 1.3 Access Ensure safe access and if necessary a safe working platform (suitably guarded) before attempting to work on the product.
1.10 Tools and consumables Before starting work ensure that you have suitable tools and / or consumables available. Use only genuine Spirax Sarco replacement parts. 1.11 Protective clothing Consider whether you and / or others in the vicinity require any protective clothing to protect against the hazards of, for example, chemicals, high / low temperature, radiation, noise, falling objects, and dangers to eyes and face.
Where no additional information is provided on the Spirax Sarco product compliance web page, this product may be safely recycled and/or disposed providing due care is taken. Always check your local recycling and disposal regulations.
Spirax Sarco strives to use only the highest quality components in the building of our tanks and will only be responsible for our own branded components. Spirax Sarco will not be responsible for other manufacturers products as we have no direct control over their quality. However, we will take full responsibility for any complete system which has been supplied by us.
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All procedures for the connection of main power supplies have to be performed by trained and qualified electrical personnel. The PLC unit for the control of the Spirax Sarco CSM-PD is designed to be installed in covered locations, unless otherwise specified by the customer.
3. Control unit Description The PLC control and safety unit is intelligent equipment designed to start-up, control and operate, either in local mode or by ultimate means of a remote system (DCS - Distribution Control System or BMS - Business Management System).
Inside cabinet (See the attached wiring diagram supplied with the unit) PLC : Control unit with analog and digital inputs and outputs. RL : Relays. AL1 : 24 Vdc power supply. IG : Main power switch. FS - RE : Fuses and Resistors. I1 - I2 : Automatic switch for power supply of Fig.
The PLC based unit is designed to provide control of: Temperature, Water level and of all Alarm limits of the Spirax Sarco CSM-PD. The control unit is equipped with a video interface displaying screens with graphics of the tank and also selective parts, e.g.
5. External connections All electrical connections have to be carried out by trained and qualified installation electricians. It is important to verify that the main power switch is in the 'OFF' position before connecting the line voltage. The installer has to route the power cables, reach the terminals located on the main power switch mounted on the panel and run the ground wire to the earth ground terminal.
7. Display and keyboard Nine keys are located on the lower part of the panel just below the display. LED alarm LED run Display Reset Start Stop Escape < > RESET key During manual or automatic operation the key is pressed to acknowledge an alarm condition. If the type of alarm does not provide a cycle stoppage (shutdown), the program resumes the normal operation.
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STOP key In automatic operation mode the STOP key is pressed to stop the active functions. RUN LED is switched off. OK key In automatic operation mode the OK key is pressed to confirm the selected functions. < key < In manual and automatic operation mode the key is pressed to decrease the set point values.
Initial screen Powering the unit the display will show Screen 1: Screen 2 Screen 1 By pressing the key Screen 2 will be displayed. By pressing the key again, Screen 3 will be displayed where it will be possible to select one out of four operation modes (Manual - Automatic - Historical alarms - Parameters).
8. Manual mode Upon selection of the manual operation mode, by pressing the key again, Screens 4 and 5 are accessed in sequence. By pressing the key the reverse selection is obtained. Screen 5 Screen 4 Temperature control mode Feedwater control mode General considerations in manual mode The above are active funtions;...
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Manual control of the feedwater The supplied level transmitter has a working range defined by the specifications of each tank. It is important that the working range of the transmitter matches that programmed in the control unit. There are three types of level control: The three types are defined as: Type [0], Type [1] and Type [2] Type [0]...
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< > Once the manual mode is selected press the (- ) and (+) keys to increase or decrease the valve opening and consequently adjust the level. The display will indicate: Level type [0] Valve graphic completely displayed (open). Level type [1] The value in % of the control valve position and the value of the measured level.
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Manual control of the temperature The supplied temperature transmitter has a working range matched to the specification of each tank. Normal ranges are 0 – 90, 0 – 100 or 0 – 120 ºC. It is important that the working range of the transmitter matches that programmed in the control unit.
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Select Screen 5 with keys. > < Press (+) (-) keys to increase or decrease the steam valve position. The display will indicate the opening value of the valve in % and the steam temperature value in ºC. When the required value of the position exceeds the limit of '0', the on-off solenoid valve of the primary steam will be open.
9. Automatic mode After a Start-up or Manual Mode press the key and access Screen 3 where it will be possible to select one out of four operation modes (Manual - Automatic - Historical alarms - Parameters). Press the keys to move down or up and select the Automatic Mode (Screen 3). Then press the OK key to confirm and store the choice and enter the selected mode.
Temperature control Screen 11A Setting of the desired value (set-point) The supplied temperature transmitter has a working range matched to the specification of each tank. Normal ranges are 0 – 90, 0 – 100 or 0 – 120 ºC. It is important that the working range of the transmitter matches that programmed in the control unit.
Level control Screen 11B Screen 12 Press the key to access Screen 11B. Set the desired value of level (set point). Verify the type of level control selected: In the case of level control Type [0], the set point is not applicable as it is an ON-OFF control. <...
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General considerations in automatic operation If the STOP key is pressed during automatic operation the cycle will be interrupted. All active outputs are cleared and the RUN LED is switched off. Set point values are however stored in memory. The STOP action Screen 3 will be displayed to allow the selection of different operation modes.
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10. Alarms and blocks As described in the manual operation mode all the block alarms are active during the automatic cycle. In detail they are: Block off the feedwater control when one of the following alarms occurs: Stoppage of water pump. Minimum level of storage.
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11. Configuration 1. Parameters not protected by a password Actions of the temperature controller To set the controller actions proceed as follows: Step 1 - Access Screen 3 (operation mode selection). Press the keys to select the item 'PARAMETERS'. By then pressing the OK key Screen 14 will be displayed: Screen 14 <...
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Step 2 - Press the key to access the next screen, Screen 15. Screen 15 < > Enter the desired value of the integral action constant (0 to 10) using the - and + keys. Note: the entered value will be stored until a successive modification. For values set near to '0' or to '10' this action will be fast or slow respectively.
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Step 3 - Press the key to access the next screen, Screen 16. Screen 16 In case of control with only the proportional band action, enter the desired value of the power reset constant < > (0 to 100%) using the - and + keys.
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Actions of the level controller (ON-OFF control excluded) To set the controller actions proceed as follows: Step 1 - Press the key to access the next screen, Screen 17. Screen 17 < Enter the desired value of the propor tional band (gain) constant (0 to 100%) using the >...
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Step 2 - Press the key to access the next screen, Screen 18. Screen 18 < > Enter the desired value of pre-alarm for level using the - and + keys. This is an absolute value ranging from '0' to '1000' (zero and full-scale values of the level transmitter). The cycle will not be blocked when this alarm occurs.
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2. Parameters protected by a password Press the key to access the next screen, Screen 19. Screen 19 To enter the three digit password proceed as follows: Press the key (the value 3 is entered in the first digit). PLC Control Unit for CSM-PD Pre-heating and Degassing Systems IM-P486-14 EMM Issue 2...
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Screen 20 Press the OK key to access the following Screens to set these parameters. Use Screen 20 to enter the full-scale values of pressure and level according to the installed transmitters. PLC Control Unit for CSM-PD Pre-heating and Degassing Systems IM-P486-14 EMM Issue 2...
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To enter the temperature value: Press the OK key twice - The digit of the full-scale value in decimal will blink. Press the keys to enter the desired value. < Then press the key and move the cursor to the digit which displays the unit valve required - The value in units of the full-scale will blink.
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Screen 21 Screen 22 Screen 21 is used to enter the values of zero and span values for transmitter linearisation process. Press the OK key to access the value selection mode, use the arrows to select the start or end value, and press the OK key to confirm your choice and proceed to press the ESC key to leave this editing selection.
12. Repairs Should it be necessary to return the equipment for repairs please contact our nearest Branch Office or Agent or directly: Spirax Sarco S.r.l. Ufficio Resi - Via per Cinisello, 18 - 20054 Nova Milanese (MI) Tel. 0362-4917.1 Fax 0362-4917307 Loss of guarantee Total or partial disregard of the above instructions involves loss of any right of guarantee.
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PLC Control Unit for CSM-PD Pre-heating and Degassing Systems IM-P486-14 EMM Issue 2...
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PLC Control Unit for CSM-PD Pre-heating and Degassing Systems IM-P486-14 EMM Issue 2...
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