MAX Modular Analogue Expandable Amplifier System
- Modular System with plug-in modules
- Two Motherboard Sizes giving capacity for 5 or 11 plug-in modules
- Totally user configurable
- Housed in IP65 die-cast enclosure
- Input modules include: load cell, current & resistive high accuracy
- Control modules include: summation, external switching & trip set
- Output modules include: voltage, current, serial, relay, meter, traffic light & ladder
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General
This modular amplifier system offers the user, the opportunity to tailor-make a signal processing and control instrument to an exact requirement, from the simple, to the most comprehensive. It is analogue based with input boards configured to provide outputs on a motherboard bus in the range 0-10Vdc. The modular construction allows retrospective additions to the system, with expansion in mind. The system consists of a rigidly supported motherboard with a selection of daughter boards plugged into headers, to perform various functions as required by a specific application. After selection and test, each daughter board is mechanically held in position with a rigid clamp.
Construction
The motherboard PCB has an on-board power supply section, which allows the system to be run from 12Vdc, 24Vdc or 110/240Vac. These options to be defined at the time of ordering. Two sizes of motherboards are available with capacity for 5 or 11 plug-in modules. Each completed system is housed in a die-cast aluminium enclosure of 125mm wide by 80mm high (either 220mm or 360mm long) with a protection rating of IP65. Wiring is through nickel-plated cable glands and into numbered terminal blocks on each daughter board.
Bus System
A multi-way signal, control and power bus travels the length of the motherboard. Up to 4 input boards can be fitted plus a summation and/or switching board which feed dedicated channel or group busses. A test board would be fitted to enable monitoring of all the bus lines with a multi-meter. Various output daughter boards can be fitted to provide voltage, current or meter outputs as well as an RS232/422 serial board that can drive digital displays and interface to a PC. Trip relay, bargraph ladder and 3 level light driver boards can also be fitted as required.
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