![](/images/new-backgrounds/1202579/202579197x1.webp)
User Manual
Hipulse - Single Phase ‘1+N’ UPS System | 130 kVA - 110V |
10.1 Remote Alarm Monitor
The Remote Alarm Monitor (RAM) Board can be used in conjunction with the AS400 Alarms Interface Board to display the UPS alarm and status information at a remote station to 100 meters from the UPS.
The RAM, which can be mounted either horizontally or vertically contains a mains- driven power supply for alarm LED annunciation and displays the following warnings:
Panel | Colour | Normal | Interpretation |
|
| state | |
|
|
| |
Inverter ON | Green | ON | Normal operating condition indicating that the load is being supplied by the inverter. |
|
|
| This is not an 'alarm’ indicator. |
|
|
|
|
Utility failure | Red | OFF | When lit, it indicates that the input bypass is out of tolerance or missing. |
Battery low | Red | OFF | When lit, it indicates that the battery voltage is below minimum or that the battery |
|
|
| circuit breaker is open. |
|
|
|
|
Bypass ON | Red | OFF | When lit, it indicates that the load is being fed from the bypass supply, possibly due |
|
|
| to a UPS failure. |
Maintenance | Red | OFF | When lit, it indicates that the UPS has been selected to operate on the maintenance |
|
|
| bypass and load is unprotected. |
|
|
|
|
Alarm | Red | OFF | This is a ‘common alarm’ and is lit when any of the red leds described above are lit |
|
|
| Table A |
An audible warning accompanies any of the above alarm conditions. This is, however, subject to a short time delay when activated in conjunction with the 'Utility Failure' and 'Bypass ON' alarms, to prevent the warning being activated by transient conditions. Pressing the 'reset'
10.1.1RAM Connections
Power Supply
The RAM contains a
It is advised that the power supply is taken from the UPS output, otherwise in the event of a mains failure the RAM may be inoperative.
Alarm connections
A 9 pin
Note: Operation of the RAM indicators, is achieved by feeding a voltage across the module Alarm Board relay contacts. No other connections should be made across the relay contacts used.
79