Product category:
Electrical and Electronic Testing and PAT Equipment
News Release from: Wago Corp | Subject: Wago-I/O-System 750-493
Edited by the Engineeringtalk Editorial
Team on 14 February 2008
I/O module integrates power measurements
Three-phase power measurement module combines the comprehensive monitoring of a supply network with the connectivity of an I/O system.
Wago Corp's new 750-493 three-phase power measurement module integrates comprehensive monitoring of a power supply network with the connectivity of an I/O system At just 12mm wide, the high-density six-channel 750-493 represents a cost- and space-effective solution to power system supply management
This article was originally published on Engineeringtalk on 5 Dec 2003 at 8.00am (UK)
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Whereas most competing power measurement modules are stand-alone units relying on proprietary connectivity to external devices, the 750-493 is a component of a remote I/O or distributed control system.
Thus, it is compatible with 16 different fieldbus networks (including Ethernet, Profibus, Modbus and DeviceNet) and the 300-plus digital, analogue, and special function modules found in the Wago-I/O-System, making it flexible and efficient to analyse and distribute power supply data.
When one or more 750-493 modules are connected to a Wago controller, the solution can be programmed with Wago-I/O-Pro CAA for data logging, time stamping and historical analysis.
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"Placed in the industry's smallest modular I/O housing, the 750-493's versatility makes it the ideal solution to power measurement", says Mark DeCramer, Product Manager for the Wago-I/O-System.
"Because the DIN-rail-mountable 750-493 was designed as an I/O system component, much of the complexity associated with traditional modules has been minimised".
"There is no need for the subsequent costs related to stand-alone modules, such as power feeds, additional networking and special mounting".
The six-channel power measurement module has three channels dedicated to voltage input and three channels dedicated to current input and is available in 1 and 5A variations to support standard current transformer signal levels.
The intelligent module directly measures voltage, current, energy consumption and power factor to calculate effective power and track energy consumption rates.
The data provided by this module can be utilised to ensure economical operation and equipment safety.
For example, this data may allow the control system to optimise power supply to a drive/machine, schedule preventive maintenance in the event of excessive energy consumption and detect instant or cumulative loading in motors, initiating a pre-emptive shutdown for equipment protection.
"The 750-493 is also well suited to building automation, where it monitors loading, balance and phase loss of lighting circuits and HVAC transmission lines", adds DeCramer.
"This enables facility managers to contend with escalating energy costs and fluctuating demand-based power rates".
The 750-493 has four status LEDs indicating undervoltage conditions for each of the three phases, as well as module status.
As with all Wago-I/O-System modules, the termination points in the 750-493 use Cage Clamp wiring technology for fast, easy and maintenance-free wiring.
For convenience, it also features WSB-Markers for individually labelling termination points.
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