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Summary of Contents for Selco M3000
- Page 1 Analog Alarm Annunciator M3000 User’s Manual SELCO Betonvej 11 – DK-4000 Roskilde Denmark Phone: 45 7026 1122 - Fax: 45 7026 2522 e-mail: selco@selco.com www.selco.com...
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Page 2: Table Of Contents
Analog Alarm Annunciator M3000 M3096A-31E Table of contents 1. INSTALLATION ........................... 5 1.1 Dimensions ..........................6 2. CONNECTION ..........................7 2.1 Power Supply ......................... 8 2.2 Inputs ............................. 8 2.2.1 Voltage and Current Sources ................... 9 2.2.2 Potential Free Contacts ....................9 2.2.3 Mixed Sensor Types ...................... - Page 3 Analog Alarm Annunciator M3000 M3096A-31E 4.1.2 LED Reset ........................20 4.1.3 Output Deactivation ....................... 21 4.2 Alarm Indication ........................21 5. PROGRAMMING ........................21 5.1 Physical Input ........................22 5.1.1 Input Type ........................22 5.1.2 LCD Unit ........................22 5.1.3 Input Lower Reference ....................22 5.1.4 LCD Lower Reference ....................
- Page 4 8.3 Average Temperature Alarms (Engine Application) .............. 32 8.3.1 Connection ........................33 8.3.2 Configuration ......................... 33 Important note: This document contains information on a new product. Specifications and information herein are subject to change without notice. Please advise SELCO for further details on latest developments. SELCO...
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Page 5: Installation
INSTALLATION The M3000 is designed for flush mounting. Outside dimensions are H x W x D = 144 x 144 x 70mm. A cut out with dimensions H x W = 138 x 138mm must be made in order to install the unit in the switchboard cabinet. -
Page 6: Dimensions
Analog Alarm Annunciator M3000 M3096A-94E Dimensions 1 4 4 m m 7 0 m m 4 . 5 m m C u t o u t 1 3 8 x 1 3 8 m m SELCO... -
Page 7: Connection
LCD contrast The M3000 includes 8 groups of input terminals. Each group is physically represented by a plug-in connector that holds 3 input terminals, “IN1”, “IN2” and “IN3”, and one common reference terminal “GND”. Be sure not to confuse the physical inputs with the logical inputs “INA”, “INB” and “INC”. -
Page 8: Power Supply
- even under a possible “black out” condition. Inputs The M3000 includes a total of 24 inputs. Each of these inputs will accept the connection of one sensor. The sensor can be a PT100 or a thermocouple supplying a current or voltage signal through the use of a standard transmitter. -
Page 9: Voltage And Current Sources
10V DC. The figure to the right shows how to connect 3 current sources. 2.2.2 Potential Free Contacts The M3000 is capable of annunciating digital alarms. In this case the sensor will be some kind of potential free contact. The potential free contact will actually control the connection of a voltage source The figure below shows 3 potential free contacts on the same input plug-in connector. -
Page 10: Pt100, Thermocouples And Pressure Sensors
Fax: +45 86 25 65 77 Fax: +45 86 37 30 85 The SELCO PT100 6 Way Transmitter M1500 provides a cost-effective solution and includes 6 current transmitters in one box to be connected to PT 100 resistors. The following diagram shows the connections of the M1500. -
Page 11: Open Collector Outputs
This output is activated to annunciate a new alarm. The output is deactivated by the first press of the “C” key, located on the M3000 front plate. Output is at GND level when active, and at +24V DC level when inactive. -
Page 12: Configuration
An open collector output will not drive anything. It works only as an electronic contact to GND. CONFIGURATION The configuration of the M3000 unit consists of a number of parameters that describe the set-up of the 24 physical inputs, the 24 logical inputs and the 48 alarms. - Page 13 The non-volatile memory is kept intact - even if power supply is disconnected for a long period. It is possible to program the configuration of the M3000 in two different ways. The first way is to enter the configuration parameters directly from the front plate keyboard of the M3000. This method is also referred to as “LCD programming”.
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Page 14: Physical Input
LCDLo: 0 This will tell the M3000 that a current signal between 0 and 20 mA is expected at the input terminal and that the desired unit of measurement is degrees Celsius, indicated by the “˚C” in the LCD unit parameter. -
Page 15: Lcd Upper Reference
The above configuration will inform the M3000 that a current signal is expected on the input. The combination of the “InpUp” and “LCDUp” parameters forms the relation, 20 mA measured on the input should bring the M3000 to show 600˚C in the LCD. Please refer to the description of the “InpLo” parameters as well. -
Page 16: Alarm
Analog Alarm Annunciator M3000 M3096A-94E Important note: It is very important that all inputs referred to by the average parameter have compliant parameter values assigned. The logical input itself must also comply with this rule. Failing to do so may impose a significant error on result returned by the average calculation. -
Page 17: Lcd Description
This parameter holds a 10 character text that is shown on the LCD together with the actual measurement and the alarm set point. The alarm text is only used for indication and the choice of characters will not affect the operation of the M3000 in any way. SELCO... -
Page 18: Delay
8 can be configured to operate as the block control input. Please refer to the description of the low level configuration. Example: Most pressure alarms from an engine must be blocked until the engine has reached normal revolutions. Without blocking the M3000 will report pressure alarm while the engine is off duty (not running). SELCO... -
Page 19: Control Mode
“AL.OUT” and “SIREN” will be activated. The alarms will stay active until the operator acknowledges the alarms from the M3000 keyboard or until the remote reset function is used. In control mode the open collector outputs are used for level dependent control of external equipment. -
Page 20: Operation
4.1.2 LED Reset Each of the 48 alarms of the M3000 can be programmed to control one of the 24 LEDs located on the front plate. A LED will start flashing once the controlling alarm is annunciated. A flashing LED indicates a new alarm that needs acknowledgment. -
Page 21: Output Deactivation
M3096A-94E 4.1.3 Output Deactivation Each of the 48 alarms of the M3000 can be programmed to control one of the 14 open collector outputs located in the two 8 pole plug-in connectors at the rear side of the unit. The output controlled by an alarm is deactivated at the second press of the “C” key. -
Page 22: Physical Input
This will make sure that the units program is updated. Physical Input The M3000 includes a total of 24 physical inputs located in 8 groups. Each group holds 3 physical inputs and the configuration of these physical inputs will affect the function of the related hardware input terminals encapsulated by the plug-in connector at the rear side of the unit. -
Page 23: Lcd Lower Reference
Analog Alarm Annunciator M3000 M3096A-94E The next activation of the “C” key will bring the cursor into the parameter field. The ““ key is then used for switching between the operator and the value part of the parameter. Pressing the up/down arrow keys while the cursor is on the operator will toggle the sign between plus and minus. -
Page 24: Miscellaneous
““ key. Logical Input The M3000 includes a total of 24 logical inputs located in 8 groups. Each group holds 3 logical inputs. The logical inputs are used for average calculation based upon the measurements of up to 12 physical or logical inputs. -
Page 25: Alarm
“Off” using the “C” key. Alarm The M3000 unit includes a total of 48 alarms located in 8 groups. Each group includes 6 alarms and any one of these alarms can be programmed for level surveillance of any one of the 24 physical or logical inputs. -
Page 26: Lcd Description
Analog Alarm Annunciator M3000 M3096A-94E Gr:1 Alr:1 Set: > 1A 0.000 In this case the operator should be ignored. The alarm set point is represented by the logical input “A” of group 1. The set point value describes the plus/minus offset from the dynamic set point. -
Page 27: Flags
Press the up/down arrow keys while the test is running to switch to keyboard test. 6.1.3 A02 - Protocol If the M3000 has an EPROM date of 200901 (20 September 2001) or younger, it is possible to choose between standard MODBUS-RTU protocol and SELCO BUS protocol for communication via the RS485 interface. -
Page 28: A03 - Device Number
Logger. 6.1.7 A07 - Remote Reset Setting constant 07 of group “A” to “1” will enable the remote reset function of the M3000. Setting the constant to “0” will disable the function. Remote reset takes place when a voltage above +12.0V DC is placed on input 3 of group 8. - Page 29 Analog Alarm Annunciator M3000 M3096A-94E If the M3000 has an EPROM date of 080499 or younger, an additional reset function is available. This reset function requires 3 presses on the "C" key as the normal reset function, except that the outputs now follow the LEDs: First press on the "C" key deactivates the siren.
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Page 30: Specifications
Analog Alarm Annunciator M3000 M3096A-94E SPECIFICATIONS Dimensions : 144 x 144 x 70 mm (138 x 138 mm cut out). Weight : 0.8 Kg. Degree of protection : IP54. Operating temp. : -20 to +70 °C. Humidity : 95% RH at 20 °C. -
Page 31: Appendix 1 - Application Examples
4 and 20mA. Most current transmitters work like a current gate, limiting the current from an external supply. In the case of the M3000 the external supply is the +24V DC unit supply. -
Page 32: Potential Free Contacts
The important thing to keep in mind when attaching a potential free contact is that the contact will, in one of its states, makes a connection to a DC voltage. The DC voltage range accepted by an M3000 input terminal is 0V DC to 30V DC. The connection of 3 potential free contacts is shown below. -
Page 33: Connection
The above example will provide the surveillance of 3 cylinders. The temperature range on each cylinder is 0 - 600°C. The M3000 has been programmed to monitor the temperature on each of the 3 cylinders according to the average temperature on the 2 other cylinders (represented by the logical input).
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