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Temperature compensation of load

To preserve the long life of our batteries, it is advisable to compensate the charge voltage in floating to room temperature. The focus is to 2.275V / cell and 20 ° C, we recommend - 3 mV / ° C for temperatures above 25 ° C and + 3 mV / ° C for temperatures below 15 ° C. It will be necessary to add the optional temperature probe and to  placed it close to the batteries.

AUNISOLBAT batteries 12ET-L series are used specifically for the inverters, rectifiers battery chargers and central sources of security lighting. The tight construction of the battery allows operation without problems in all positions. Since No specific maintenance and servicing is required with an operation based on the principle of the gas recombination (99%).

Protection against power supply failures

The MultiNET_ATS static transfer switch 16/32A is designed for 19" rack cabinet. It can be powered with 2 differents UPS and provides protection against load and power supply failures.

LCD display

The digital LCD display shows input/output power connected to load 

Protection against power supply failures

The MultiNET_STS static transfer switch 63A/120A is designed for 19" rack cabinet. Can be powered with 2 differents UPS and provides protection against load and power supply failures.

Redundant system

Power is supplied by 2 separate supply circuits that are fully independent and that can be replaced during normal operation (hot replacement mode)  without any risk of causing power supply interruptions to the load. In the unlikely event of a failure at one of both power supplies, the full operation is provided by the “Power Supply backup” function, which offers auxiliary power supply to the circuits from an external, independent power source. The MultiNET_ATS is equipped with a redundant ventilation system.

Working principle

The MultiNET_ATS allows the load to switch between alternative and independant power sources for guaranteed redundant power. The switch can be automatic (when a source falls outside the acceptable tolerance) or manually through the front panel control.

Relay cards are based on dry contacts and give signals in the case of power supply interruption, switching to bypass or general faults. The AS400 and Modbus card provide the interface for the corresponding protocols.

SNMP adapters provide monitoring of the UPS via ethernet or WLAN including email notifications. The monitoring software allows connection with the IP adress of every UPS. For example all servers in a network can be shutdown. SMS can be sent without LAN connection by using a GSM modem.

The report defaut is physically connected with the UPS by cable and allows distant monitoring and management of the system. The panel can be installed as far as 500m from the UPS and will be power supplied by the interface cable.

With the galvanic isolation transformer the electric circuits before and after the UPS are not connected physically but via an electromagnetic field. This increase the reliability of the protection. Spikes and disturbances can not pass the galvanic isolation transformer.

External manual bypass modules (singlephase & threephase) allow service and maintenance work without interruption of the power supply. The UPS can be disconnected after the power supply was switched to the bypass line. All the Aunilec MultiNET_ATS range can be also used as external bypass.

External and internal chargers for batteries of higher capacity and faster charging time.

The NetFeeler senor are mostly used in server cabinets and for the observation. They can inform you about temperature and humidity through IP adress. The sensors can also be connected to a three port SNMP adapter offered by Aunilec. 

The spike protection protects electrical devices from spikes voltage. It attemps to limit the voltage supplied to an electric device by either blocking or by shorting to ground any unwanted voltages above a safe threeshold.

UPS with special cabinet in protection class IP65 and IP55, used for temperatures from -30°C up to +50°C.

The rail is the perfect tool to fix the UPS or battery pack in a 19” rack cabinet. The additionally gliding function ensures a very easy and fast access to the different cabinets.

External Wifi / Ethernet box is used to provide WLAN / Ethernet transmission service. Wifi supports 802.11b/g/n wireless standard, and the frequency range 2.412G-2.484G.