Multilink EB1s, Инструкция по установке и эксплуатации

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Issue 13 (11/14/2017)
Section 2: lntroduction
2.1 EB1s Series Product Overview
Supported Firmware Versions: This manual supports features and functions of firmware releases starting at
Version 3.1.1, Build 6.
Overall Operation: The EB1s Series of power supplies provide filtered and regulated AC output power of
proper voltage and current values to operate amplifiers, nodes and other active devices in CATV and
broadband networks. These supplies are designed to normally power the network from the commercial AC line
while maintaining an emergency battery in a state of full charge. If the commercial AC line fails for any reason
or if line voltage exceeds preset low or high limits, the low voltage inverter within the power supply immediately
begins providing power to the network load while drawing its operating power from the battery. After
commercial AC line power has been restored, the power supply will revert to its normal operating mode
supplying power to the network load while drawing operational power from the commercial AC line.
Simultaneously, the internal battery charger within the power supply will recharge the battery. The power supply
will continue providing filtered and regulated AC to the network load.
Hot-swap Inverter Module: The EB1s features a removable Inverter Module that can easily be removed and
replaced in the field without interrupting power to the load.
Primary Voltage Selection: The EB1s power supplies have been designed for operation from standard AC
utility lines with an overall voltage range of 90 to 145 volts for nominal 120 VAC models or 180 to 264 volts for
nominal 240 VAC models. The main transformer of the power supply is equipped with two or four primary input
taps and an automatic electronic tap selector circuit connects the appropriate primary tap to the AC utility line
depending on the prevailing AC voltage applied. This automatic tap selection allows the power supply to
operate at its most efficient and economical point, thus minimizing input power losses and heat dissipated within
the power supply enclosure.
Output Over Current Monitoring:
Each output may be independently configured to trigger an output current alarm at a programmable threshold.
The front panel LCD display Configuration menu contains the configuration and current thresholds. Note that
this does not provide actual Current Limiting; the natural foldback characteristic of the ferroresonant
transformer will limit the output current to a safe level.
Short Circuit Detection
The power supply is capable of detecting a condition that indicates that the output has a short circuit. After a
short delay to determine that it is not a momentary condition, the output will disconnect from the load and after
60 seconds will attempt to re-connect. If the short circuit is still detected the output disconnects and the cycle
starts again.
This feature can be enabled or disabled from a Configuration Menu item.
Missing Batteries Detection
The power supply is capable of detecting if the battery string has been disconnected. The detection test is run
at an interval set by a Configuration Menu item. The same menu item can disable this feature.
Multiple Language Menus
A Configuration Menu item can select either English or Spanish as the power supply display language.
Additional languages may be supported in future versions.
Sleep Mode
Sleep Mode is safety shutdown condition initiated by the system firmware. The purpose of this condition is to
preserve battery life. While the inverter is running, the power supply will enter Sleep Mode if the batteries drop
below the selected Low Battery Shutdown Voltage.
This voltage is selected in the Configuration Menu and is
1.75 VDC per cell by default.
While in this condition the inverter and battery charger will not run and the LCD backlight will not illuminate.
The LCD display, the keypad, the cabinet lights output, and the HMS communications will continue to function