MGE UPS Systems 250A user manual Communication connections

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2.5 Communication connections

	RS-232		RS-485

Communication connector details

RS-232

RS-485

5 4 3 2 1

9 8 7 6

1 2 3 4 5

RS232 connector

Td (from the PMM display)

Rd (to the PMM display)

GND

2. Installation

1.Connect the communication cable to the RS232 or RS485 connector on the right- hand door of the module.

2.Run the cable as shown in the figure opposite.

3.Tie the cable down to the module frame.

RS485 connector RS485 connector

2 wires	4 wires
GND	GND
Not used	Tx+
Not used	Tx-
Tx+ / Rx+	Rx+
Tx- / Rx-	Rx-

Example of an RS485 2-wire

connection:

Master or slave

Rx-	Rx+
Tx- /	Tx+ /		GND

1	2	3	4 5

Example of an RS485 4-wire connection:


	Master					Slave
Rx-	Rx+ Tx- Tx+			GND	Rx-	Rx+ Tx-			Tx+	GND

1	2	3	4 5		1	2	3	4 5

34020201EN/AB - Page 15

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Contents Power Management Module 2 34020201EN/AB Introduction Symbols ForewordStructure of this document Contents 250 a PMM modules Module characteristicsNumber of circuits Isolation Depth Width Height Weight PresentationAccess to the circuit breakers Version with 126 circuit breakers doors openVersion with 60 circuit breakers doors open Access to connections Control panelExample showing the version with 126 output circuits Footprint of module InstallationSetting up the module Module 825 mm deepInstallation against a wall Attach the module to the wall using the two rear bracketsModule 425 mm deep ≥ 400 mm Back-to-back assemblyModule with isolation transformer Input power connectionsC PEN Output circuit connections Alarm and remote shutdown connectionsCommunication connections Operation Turning on the PMM moduleDisplay General metering AlarmsMetering Output-circuit meteringTurning off the PMM module SetupCommunication settings Operation settings display and alarmsPossible Causes Action MaintenanceTrouble-shooting and solutions Meaning ActionPacking materials Recycling at the end of service lifeEnvironment This product has been designed to respect the environmentAppendices Version without isolation transformer Simplified diagramsVersion with isolation transformer PMM ModuleModbus communication information Access to communicated informationAlarm LED Type 1-alarm Type 2-alarm Cause Contact Auxiliary contact functions# Bit Description Major alarms on circuits 1 to Minor alarm threshold % for circuit Appendices 28 34020201EN/AB # Bit NV Description Bit NV Description # Bit Float Coeff Description Card MCM general status and measurementsRS-232 GlossaryIsolation transformer Output circuitOutput circuits 16-19 Index34 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.