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MARATHON MONITORS INC
COPYRIGHT © 1998
Installation and Operation Handbook
AACC 2000 (Carbon) Monitor / Controller
Marathon Monitors Inc.
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Part # F200047 3100 East Kemper Road, Cincinnati, Ohio 45241 1-800-322-4444 (513) 772-7788 FAX: (513) 772-7853 without prior written permission of Marathon Monitors Inc. All trademarks used in this publication are duly marked and the sole property of their respective owners. No attempt at trademark or copyright infringement is intended or implied. Marathon Monitors makes no warranties express or implied beyond the written warranty presented at initial purchase. Marathon Monitors Inc. is not
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................................ ................................ ... 4 Installation Safety Requirements ................................ ................................ ........... 5 Installation requirements for EMC ................................ ................................ .... 7 Technical Specification ................................ ................................ ......................... 8 Installation ................................ ................................ ...........
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Please read this section carefully before installing the controller This controller is intended for industrial temperature and process control applications where it will meet the requirements of the European Directives on Safety and EMC. Use in other applications, or failure to observe the installation instructions of this handbook may impair the safety or EMC protection provided by the controller. It is the responsibility of the installer to ensure the safety and EMC of any particular install
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Various symbols are used on the instrument ! The functional earth connection is not required for safety purposes but to ground RFI filters. Installation must only be carried out by qualified personnel. Enclosure of live parts To prevent hands or metal tools touching parts that may be electrically live , the controller must be installed in an enclosure. Live sensors The fixed digital inputs, non-isolated dc, logic and outputs and the logic output of dual output modules, are all electrically co
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Overcurrent protection To protect the internal PCB tracking within the controller against excess currents, the AC power supply to the controller and power outputs must be wired through the fuse or circuit breaker specified in the technical specification. Voltage rating • • • The controller should not be wired to a three phase supply with an unearthed star ground and the product would not be safe. Voltage transients across the power supply connections, and between the power supply and ground,
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Where damage or injury is possible, we recommend fitting a separate over-temperature protection unit, with an independent temperature sensor, which will isolate the heating circuit. Please note that the alarm relays within the controller will not give protection under all failure conditions. Grounding of the temperature sensor shield In some installations it is common practice to replace the temperature sensor while the controller is still powered up. Under these conditions, as additional prote
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Environmental ratings Instruments are intended to be panel mounted. The rating of panel sealing is IP65, (EN 60529), or 4X, (NEMA 250). o Operating temperature: 0 to 55 C. Ensure the enclosure provides adequate ventilation. 5 to 95%, The instrument is not suitable for use above 2000m Equipment ratings 15 Watts maximum. Triac outputs (isolated): 30 to 264Vac. Maximum current: 1A resistive. The leakage current through triac and relay contact suppression components is less than 2mA at 264Vac, 50H
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General Main PV Input + 100mV, 0 to 10Vdc (auto ranging) and 3 wire Pt100. o The greater of + 0.2% of reading, + + 1 C. i/p). Electrical safety E 2. instrument must not exceed 2.5kV. cabinet in which the instrument is mounted. All isolated inputs and outputs have reinforced insulation to provide protection against electric shock. The fixed digital inputs, non-isolated dc, logic, and the logic output of dual output modules, are all electrically connected to the main process variable input, (therm
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AACC 2000 Carbon Nov. 1, 1997 10 Marathon Monitors Inc.
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Figure 1 - 3 AACC 2000 Carbon Nov. 1, 1997 11 AACC 2000 1/4 DIN controller Panel sealing gasket Latching ears Panel retaining clips Label Display screen covers Terminal Ratchets Case Installation Marathon Monitors Inc.
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Outline dimensions Model 2000 150mm -0 +0.8 -0 +0.03 The electronic assembly of the controller plugs into a rigid plastic case, which in turn fits into the standard DIN size panel AACC 2000 Carbon Nov. 1, 1997 12 cut-out shown in Figures 1-3 and 1-4. 4 Outline dimensions Model 2000 controller Figure 1- 3.62 x 3.62 in controllers spacing of 92 x 92 mm minimum Recommended cut-out Panel 3.78in 96mm 3.78in 5.91in 96mm Maratho
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Model AACC 2000’s are high stability, process controllers with self and adaptive tuning. digital inputs and an optional alarm relay are included as part of the standard hardware. Before proceeding, please read the, Safety and EMC Information. Controller labels The labels on the sides of the controller identify the ordering code, the serial number, and , explains the hardware and software To install the controller 1. Prepare the control panel cut-out to the size shown in Figure 1-3, or 1-4. 2. I
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All electrical connections are made to the screw terminals at the rear 2 accept wire sizes from 0.5 to 1.5 mm (16 to 22 AWG). A set of connectors is supplied with the controller. The terminals are protected by a clear plastic hinged cover to prevent hands, or metal, making accidental contact with live wires. Rear terminal layouts The rear terminal layouts are shown in Figure 1-6. The right-hand column carries the connections to the power supply, digital inputs 1 and 2, alarm relay and sensor
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Typically a series of letters appear after the part number, see chart below. A – Analog Output X – Not Installed C – Communications I – Analog Input (typically in position 3) AACC 2000 Carbon Nov. 1, 1997 15 D – Dual Relay Carbon Controller: The display below shows a typical wiring diagram for the AACC2000 Marathon Monitors Inc.
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Ω P V PLUG-IN MODULE CONNECTIONS Module 1, 2 and 3 Module positions 1, 2 and 3 are plug-in modules. They can be either two terminal modules of the types shown in Table 1-1, or four terminal modules of the types shown in Table 1-2. The tables show the connections to each module and the functions that they can perform. AACC 2000 Carbon Nov. 1, 1997 16 7 Sensor input connections Fig 1- v- v- v- v- resistor sense V+ V+ V+ V+ cu
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Two terminal modules Module 1 is connected to terminals 1A and 1B Module 2 is connected to terminals 2A and 2B Module 3 is connected to terminals 3A and 3B. A B C D + + - - + + - The relay and triac modules have an internal 15nF/100 Ω ‘ snubber’ connected across their output, which is used to prolong contact life and to suppress interference when switching inductive loads, such as mechanical When the relay contact is open, or the triac is off, the snubber circuit passes 0.6mA at 110Vac and 1.2m
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Four terminal modules Module 1 is connected to terminals 1A, 1B, 1C and 1D Module 2 is connected to terminals 2A, 2B, 2C and 2D Module 3 is connected to terminals 3A, 3B, 3C and 3D A B C D + + - - + - + Ω Ω + - ± COM + - ( + - ( AACC 2000 Carbon Nov. 1, 1997 18 Table 1-2 Four terminal module connections. Common Input 3 Input 2 Input 1 Triple logic input Common Input 3 Input 2 Input 1 Triple contact input - see ratings on the
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C onnections for Process Value 3 in module position 3 + Ω + + 0-1.6Vdc High Impedance or - - - - The input will have been configured in accordance with the ordering code. AACC 2000 Carbon Nov. 1, 1997 19 show the connections for the various types of input. The diagrams above 8 Connections for Process Value 2 (PV2) Figure 1- 3D 3D 3D 3D 3D mVdc 3C 3C 3C 3C 3C 0-10Vdc 2.49 3B 3B resistor 3B 3B 3B sense Current 3A 3A 3A 3A 3A
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Communication module 1 The possible module types are shown in the table below. Modbus, or HA HB HC HD HE HF - - - - - - AACC 2000 Carbon Nov. 1, 1997 20 module 1 connections 3 Communication Table 1- Tx Rx Common EIA-232 serial communications communications B (+) A (-) Common 2-wire EIA-485 serial Module type Terminal identity (COMMS 1) s module 1 Communication MMI protocol. The serial communications can be configured for
