MGE UPS Systems 250A user manual Glossary, Isolation transformer, Output circuit, RS-232

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6. Appendices

6.5 Glossary

ALARM

Major alarm signalling that the current in the output circuit considered is higher than 80%

 

of its rated value.

AUX ALARM INPUT

Alarm indicating either:

 

◗excessive temperature rise in the isolation transformer,

 

◗actuation of the remote shutdown function.

DOWN

Scroll button used to access previous measurement (metering mode) or setting (setup

 

mode).

Isolation transformer

Optional transformer used to provide galvanic isolation between the distribution system

 

and the output circuits, to block reinjection of third-order harmonics upstream or to create

 

a neutral if the distribution system does not have one.

METER

Function button for access to the next measurements (metering mode) or to return to

 

MONITORING mode (alarm or setup mode).

Output circuit

Single-phase circuit (phase, neutral and earth) exiting the PMM module, protected by a

 

single standard circuit breaker (PMM module with 126 output circuits) or by a circuit

 

breaker with earth-leakage protection (PMM module with 60 output circuits).

OVER CURRENT

Alarm indicating an overload on the PMM module.

OVER VOLTAGE

Alarm indicating that the voltage of the distribution system is too high.

PMM

Power Management Module (the device in question).

RS-232

Serial communication standard using a SUB-D 9-pin connector.

RS-485

Serial communication standard available via a screw-terminal block.

SELECT

Function button used to obtain a fixed display if autoscroll (parameter rotation) is

 

activated, clear an alarm (alarm mode) or access the next parameter to be set (setup

 

mode).

UP

Scroll button used to access next measurement (metering mode) or setting (setup

 

mode).

WARNING

Minor alarm signalling that the current in the output circuit considered is between 60 and

 

80% of its rated value.

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Contents Power Management Module 2 34020201EN/AB Introduction Structure of this document SymbolsForeword Contents Module characteristics Number of circuits Isolation Depth Width Height WeightPresentation 250 a PMM modulesVersion with 60 circuit breakers doors open Access to the circuit breakersVersion with 126 circuit breakers doors open Example showing the version with 126 output circuits Access to connectionsControl panel Installation Setting up the moduleModule 825 mm deep Footprint of moduleModule 425 mm deep Installation against a wallAttach the module to the wall using the two rear brackets Back-to-back assembly ≥ 400 mmInput power connections Module with isolation transformerC PEN Alarm and remote shutdown connections Output circuit connectionsCommunication connections Display OperationTurning on the PMM module Alarms MeteringOutput-circuit metering General meteringSetup Communication settingsOperation settings display and alarms Turning off the PMM moduleMaintenance Trouble-shooting and solutionsMeaning Action Possible Causes ActionRecycling at the end of service life EnvironmentThis product has been designed to respect the environment Packing materialsAppendices Simplified diagrams Version with isolation transformerPMM Module Version without isolation transformerAccess to communicated information Alarm LED Type 1-alarm Type 2-alarm Cause ContactAuxiliary contact functions Modbus communication information# Bit Description Major alarms on circuits 1 to Minor alarm threshold % for circuit Appendices 28 34020201EN/AB # Bit NV Description Bit NV Description Card MCM general status and measurements # Bit Float Coeff DescriptionGlossary Isolation transformerOutput circuit RS-232Index Output circuits 16-1934 34020201EN/AB

250A specifications

MGE UPS Systems has garnered a reputation for delivering high-quality power protection solutions, and the 250A model stands out as an excellent choice for businesses seeking reliable uninterruptible power supply (UPS) systems. This particular model is designed to handle critical loads while ensuring continuous power availability and safeguarding equipment against power disturbances.

One of the main features of the MGE UPS Systems 250A is its robust power capacity. It can efficiently supply power to critical devices, making it suitable for a range of applications including data centers, telecommunication networks, and industrial environments. The 250A offers a highly scalable solution, allowing businesses to expand their power needs as they grow.

In terms of technology, the MGE UPS Systems 250A utilizes advanced double-conversion technology, which converts incoming AC power to DC and then back to AC. This process ensures that the connected equipment receives a consistent and clean sine wave output, free from fluctuations and disturbances. The UPS is equipped with high-efficiency operation modes, including Eco-mode, which help reduce energy consumption and operational costs while maintaining optimal performance.

Another notable characteristic of the 250A is its versatility in connectivity and integration. It features a comprehensive range of communication ports, enabling seamless integration with existing infrastructures. The UPS can be monitored and managed remotely, allowing for real-time insights into the power status and performance metrics. This level of monitoring is crucial for ensuring optimal operation and for preemptively addressing potential issues.

Moreover, MGE UPS Systems has placed a strong emphasis on user-friendly design in the 250A model. The intuitive interface and clear display make it easy for operators to navigate through settings and configurations. Additionally, the modular design of the UPS allows for easy maintenance and upgrades, minimizing downtime and optimizing service efficiency.

To enhance its reliability, the MGE UPS Systems 250A comes with multiple safety features, including overload protection, short circuit protection, and temperature monitoring. These safeguards ensure that the system operates within safe parameters, reducing the risk of damage to both the UPS and connected equipment.

In summary, the MGE UPS Systems 250A is a powerful and versatile solution for businesses requiring reliable power protection. With its advanced technology, energy-efficient design, and user-friendly features, it meets the demands of modern power requirements while ensuring seamless operation and equipment safety.
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