MLC 9000+ LCM Installation Instructions
Contents
1. m Input 1 Input 2 Input 3 Input 4 Note Heater current input is only applicable to module variants Z3611 Z3621 and Z3651 Figure 6 Multiple Loop Electrical Connections 2 1 Installation Considerations Ignition transformers arc welders mechanical contact relays and solenoids are all common sources of electrical noise in an industrial environment and therefore the following guidelines MUST be followed 1 If the instrument is being installed in existing equipment the wiring in the area should be checked to ensure that good wiring practices have been followed 2 Noise generating devices such as those listed should be mounted in a separate enclosure If this is not possible separate them from the instrument by the largest distance possible 3 If possible eliminate mechanical contact relays and replace with solid state relays If a mechanical relay being powered by an output of this instrument cannot be replaced a solid state relay can be used to isolate the instrument 4 Do not run signaling cables adjacent to power carrying conductors If the wiring is run in a conduit use a separate conduit for the signal wiring Use of shielded cable is recommended and this must be grounded at one point only 2 2 Noise Suppression at Source Usually when good wiring practices are followed no further noise protection is necessary Sometimes in severe electrical environments the amount of noise is so great that it has to be suppressed at2. K 240 1 1372 9C S 0 1759 0 5V K 400 2 2503 2 S 32 3198 F 1 5V L 0 1 761 4 T 240 0 400 5 0 10V L 31 8 1402 5 F T 400 0 752 9 F 2 10V Een O E 418 1830 F THERMOCOUPLE INPUTS Better than 0 1 of range span 1 LSD Note Reduced Accuracy performance with Type B thermocouple between 100 600 C 212 1112 F Type T accuracy is 0 5 below 100 C Linearisation Better than 0 2 C any point for 0 1 C resolution ranges Accuracy 0 05 C typical Better than 0 5 C any point for 1 C resolution ranges Sensor lt 10Q as measured accuracy Resistance 100Q lt 0 1 of range span error Influence 10000 lt 0 5 of range span error Thermocouple Complies with BS4937 NBS125 amp IEC584 Calibration Measurement 0 1 of range span 1 LSD for single Loop Modules Accuracy 0 2 of range span 1 LSD for multiple Loop Modules Accuracy 0 01 of range span C change in ambient temperature Stability Lead Automatic to 50Q maximum lead resistance giving less than 0 5 of span additional error RTD Sensor 150yA 10yA Curent PT100 Complies with BS1904 amp DIN43760 0 003850 Q C Calibration DC LINEAR INPUTS Better than 0 1 of programmed range span 1 LSD Accuracy Temperature 0 01 of range span C change in ambient temperature Input Resistance mV Input gt 1MQ V Input 47kQO mA Input 4 70 Resolution Method Isolation Via ex
3. From power to Heaters control device Figure 7 3 LOOP MODULE SPECIFICATIONS GENERAL Each Loop Module performs the control functions and provides the input and output connections for its own control loops Up to 4 universal process inputs and up to 6 outputs dependent on model variant Types Available Z1200 One Universal input two SSR relay outputs selectable Z1300 One Universal input two SSR relay outputs and one Linear output or three SSR relay outputs selectable Z1301 One Universal input one Heater Break input two SSR relay outputs and one Linear or three SSR relay outputs selectable Z3611 Three Universal inputs one Heater Break input six relay outputs Z3621 Three Universal inputs one Heater Break input six SSR outputs Z3651 Three Universal inputs one Heater Break input three SSR outputs and three Relay outputs 24610 Four Universal inputs six relay outputs 24620 Four Universal inputs six SSR outputs Z4660 Four Universal inputs four SSR outputs and two Relay outputs Type and scale user selectable see Process inputs table Sample rate 10 per second 100ms Measures a Heater current value via an external CT for use by the Heater Break Alarm function PROCESS INPUTS Types available Range Minimum Range Maximum DC Linear B 212 3315 F N 32 0 2551 3 F PT100 327 3 1472 5 F 4 20mA J 328 2 2192 5 F R 32 3198 F NI 120 112 0 464 0 F 10 50mV
4. Connector Types All 5 08mm Combicon type Minimum cable rating 87 C Weight 0 15kg
5. MLC 9000 LOOP CONTROLLER MODULE INSTALLATION MANUAL 59326 3 CAUTION Installation should be only performed by technically competent personnel It is the responsibility of the installing engineer to ensure that the configuration is safe Local regulations regarding electrical installation amp safety must be observed e g US National Electrical Code NEC and or Canadian Electrical Code Impairment of protection will occur if the product is used ina manner not specified by the manufacturer 1 INSTALLATION MECHNICAL 1 1 GENERAL DESCRIPTION The MLC 9000 System comprising one or more Bus Modules each with up to eight Loop Modules is designed for installation in an enclosure which is sealed against the ingress of dust and moisture The enclosure must contain sufficient length of 35mm Top Hat DIN mounting rail to accommodate the system modules see below plus an extra 50mm of rail to permit modules to be separated for removal replacement The space required by the MLC 9000 modules is shown below DIN Rail Clamp 100mm NOTE An additional 60mm of space is required above and below the system modules to permit ventilation and to accommodate wiring bend radii to enclosure trunking or conduits Allow sufficient slack in all cables inside the trunking to permit hot swapping of modules i e modules to be removed replaced whilst the system is under power WARNING The maximum of eight Loop Module s per Bus Modu
6. le must not be exceeded It is recommended that a some means of preventing unauthorised access to the enclosure interior e g lockable doors is provided and b that a suitable DIN rail clamp be used once the MLC 9000 system is fully installed to prevent the system from moving on the DIN rail 1 2 VENTILATION Under normal circumstances no forced ventilation is required and the enclosure need not contain ventilation slots but temperatures within the enclosure must be within specification 1 3 INSTALLING A LOOP MODULE The MLC 9000 system is installed in the following order 1 Bus Communications Module refer to Bus Module installation instructions 2 Interconnect Module s 3 First Loop Controller Module 4 Second Loop Controller Module 5 Third Loop Controller Module etc To install the Loop Module follow the instructions below CAUTION HOT SWAPPING OF LOOP CONTROLLER MODULES Although hot swapping of Loop Modules is possible caution must be exercised in order to eliminate the risk of receiving an electric shock due to the possibility of up to 240VAC being present at the relay terminals of an Loop Module Before removing any connectors from a Loop Module please ensure that all hazardous voltages have been isolated from the appropriate connectors 1 3 1 Installing an Interconnect Module Slide Interconnect BCM Modules to the left until the module is connected to its neighbour DIN Rail Interconnect Mod
7. source Many manufacturers of relays contactors etc supply surge suppressors which mount on the noise source For those devices that do not have surge suppressors supplied Resistance Capacitance RC networks and or Metal Oxide Varistors MOV may be added 0 5 mid 1000V L 220 A gt TTT ohms 115V 14W 230V 1W Inductive coils MOVs are recommended for transient suppression in inductive coils connected in parallel and as close as possible to the coil Additional protection may be provided by adding an RC network across the MOV Contacts Arcing may occur across contacts when they contact open and close This results in electrical noise as well as damage to the contacts Connecting a properly sized RC network can eliminate this arc For circuits up to 3 amps a combination of a 47 ohm resistor and 0 1 microfarad capacitor 1000 volts is recommended For circuits from 3 to 5 amps connect two of these in parallel 2 3 Thermocouple Inputs The correct type of extension leadwire compensation cable must be used for the entire distance between the Loop Module connector and the thermocouple correct polarity must be observed throughout and joints in the cable should be avoided If the thermocouple is grounded this must be done at one point only If the thermocouple extension leadwire is shielded this shield must also be grounded at one point only 2 4 RTD Inputs The extension leads should be of copper and the resi
8. stance of the wires connecting the resistance element should not exceed 50 per lead the leads should be of equal resistance For three wire RTDs connect the resistive leg and the common legs of the RTD as illustrated For a two wire RTD a wire link should be used in place of the third wire Two wire RTDs should only be used when the leads are less than 3 metres long Avoid cable joints 2 5 Heater Current Input For single loop modules with a heater current input the main heater conductor should be passed through a current transformer CT the secondary should then be connected to the input terminals of the Loop Module A value of CT should be selected so that the secondary has amaximum current value of 50mA For multiple loop modules with a heater current input a single CT is used Each of the main heater conductors is passed through the single CT The value of CT needs to be calculated to be able to withstand the maximum current in all three conductors at the same time If a CT can not be found that is of sufficient size then one of the conductors can be passed through the CT in the opposite direction to the other two this has the effect of cancelling out one of the other conductors and as such reducing the secondary current Current Transformers available from your local supplier 25 0 05 part number 85258 50 0 05 part number 85259 100 0 05 part number 85260 MLC 9000 Heater Current Terminals Current Transformer Main conductors
9. ternal current transformer _ _Input Span 0 60mA ms assuming sinusoidal input current waveform RELAY OUTPUTS Contact Type Single pole single throw SPST Normally open contacts N O Rating 2A resistive 120 240VAC gt 500 000 operations at rated voltage current SSR DRIVE OUTPUTS Drive Capability 12V DC nominal 10V DC minimum at up to 20mA load Isolated from process input and relay outputs Not isolated from each other or linear outputs Not isolated from other similar outputs in the same system Accuracy 0 25 mA into 2500 load V into 2kQ load Degrading linearly to 0 5 for increasing burden to maximum drive capability Drive Capability 0 20mA 500Q maximum load 4 20mA 5000 maximum load 0 5V 5000 minimum load 0 10V 5000 minimum load Isolated from process input and relay outputs Not isolated from SSR Drive outputs or other similar outputs in the same system OPERATING CONDITIONS Ambient 0 C to 50 C operating 20 C to 80 C storage Temperature Relative Humidity 30 90 non condensing operating and storage Supply Voltage Powered by Bus Module within its operating conditions lt 2000m EN61326 1 Complies with EN61010 1 and UL 3121 1 Pollution Degree 2 Installation Category Il Indoor use onl PHYSICAL Height 100mm Width 22mm Depth 120mm EMC Standard Safety Dimensions 35mm x 7 5mm Top Hat DIN rail mounting via Interconnect Module EN50022 DIN46277 3
10. ules N Figure 1 Installing an Interconnect Module 1 3 2 Installing a Loop Module Figure 2 Installing a Loop Module 1 4 REMOVING A LOOP MODULE 1 4 1 Removing a Loop Module Unplug all Press connectors Plunger from top amp bottom of the Loop Module Figure 3 Removing a Loop Module 1 4 1 Removing an Interconnect Module BCM Remove Associated Loop Module fon Rail Slide Interconnect Modules to the right until required Module is disconnected from its neighbours Figure 4 Removing an Interconnect Module 2 INSTALLATION ELECTRICAL cErreor 0800 erofaza2z amp ee e z eo Fe 35 CTC gL ORPHH 82S r gt S gt N_ My o re eee o2 eC Thermocouple Heater Break input Z1301 only Am ET mvV V A A mA ai SAS Ala Figure 5 Single Loop Electrical Connections Outputs 1 2 3 4 5 6 Oo gt l oc i e oc V dp SSR1 or RLY1 N O SSR2 or RLY2 COM SSR2 or RLY2 N O SSR3 or RLY3 COM SSR3 or RLY3 N O SSR4 or RLY4 COM SSR4 or RLY4 N O SSR5 or RLY5 COM SSR5 or RLY5 N O SSR6 or RLY6 COM SSR6 or RLY6 N O Input 4 or Heater Current Input bs 1 bo 2 i Input 3 KISRA RRISE N ae A u Heater Current 3 M Pan Thermocouple a n ie a a je mvV V
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