25 Years of reliable service to the data processing industry
The Master Control XL is our reliable workhorse for 25 years. With thousands installed it has provided the base and target for all Off-The-Shelf EPO controls. The specified solution by engineers in every type of hig-tech facility, the Master Control XL has performed flawlessly. Equipped with time delay and backup battery this has been the standard for data center emergency power off controls for over two decades. Add the AD remote alarm dialer to the system for immediate Text Messages, Emails, SNMP or ModBUS alerts when a problem occurs. Explore the Master Control XL solution.
The Master Control XL is designed to provide a simple "Off the Shelf" solution for emergency power off (EPO) control requirements. The Master Control simplifies designing EPO control systems by providing individual relay outputs for up to 20 different systems in the data center. The standard design of the Master Control XL eliminates the problems found when using custom designed and site built EPO control systems. Up to 20 systems can be controlled with the Master Control's Form "C" non-powered relays.
Battery Backup - Each Master Control XL is supplied with a DC voltage power supply that provides an input for standard 12VDC batteries. The Master Control System also provides charging for the batteries. The Master Control XL does not come with a battery back-up but a battery (TM-BTY) is available as an option. It is designed to provide a simple "Off the Shelf" solution for emergency power off (EPO) control requirements.
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Discover MC Technologies
EPO OPERATION
EPO Inhibit Key Switch
EPO Inhibit Key Switch
When a remote EPO switch is activated, a latching relay senses the signal and locks all the output relays in the EPO position. Once in an emergency position, the Master Control System will require a manual reset to return to normal operation.
EPO Inhibit Key Switch
EPO Inhibit Key Switch
EPO Inhibit Key Switch
Using the keylock switch the MC-XL can be placed in the Inhibit or Safe mode. Allowing field wiring, testing or maintenance to be performed outwith risking an accidental shutdown of the Data Center equipment. An led will light to indicate Inhibit Mode.
EPO RESET Switch
EPO Inhibit Key Switch
Optional Time Delay
Once an EPO event is lathed the EPO ON led will light. To reset the MCXL to normal preset the EPO RESET button.
Optional Time Delay
EPO Inhibit Key Switch
Optional Time Delay
The Master Control XL can be equipped with an optional adjustable time delay in the EPO latching circuit. The Time delay (MC-TD) will prevent accidental shunt tripping by delaying the shutdown. This will prevent accidental shut down due to human error when depressing control buttons next to entrance doors. The (MC-TD) is available as an option.
The TMXL main control board
The control board controls the features and function of the MCT-XL. All power connections, EPO inputs, EPO Outputs, time delay, battery, leads and switches connect to this board.
De-plugable terminal blocks make it easier to field wire. Each output relay contact is isolated so multiple control voltages can be mixed and matched without special field wiring to prevent damage to system control circuits. The EPO inputs are normally open non-powered points that close to start an EPO shutdown from remote EPO stations or fire panels.
Optional Internet AD Remote Dialer
The optional (MCT-AD) allows the MC-MOD to remotely announce alarms using the Internet to email, cell phones, SMTP or MODBUS. This option requires an Ethernet connection to the Internet provided by others. The alarm inputs to the MC-AD are factory pre-wired. Six total alarm types can be sent to remote cell phones or tablets as text messages. Emails can be sent to remote PCs or direct connection to other facility monitoring or control systems using SNTP or MODBus. MC-AD is field programmed via web browser and the MC-AD stores historical data logging of alarm events.
The MC-AD optional can be added at the factory on order or as a separate panel to existing field systems.
Master Control EPO Options
To help complete a total emergency power off control solution we offer a wide range of Remote EPO switches, beacons, horns and RSP remote status panels. We can provide all your accessory needs.
