Alpha Technologies Cordex 48-1kW 23 4000W - Manual (Page 24)

Argus Technologies Ltd. 010-566-C0 Rev C WC
Printed in Canada. © 2005 Argus Technologies Ltd. ARGUS and CORDEX are trademarks of Argus Technologies Ltd. All Rights Reserved. Page 2 of 11
2 Features
2.1 Remote Control
All alarming and control of Cordex rectifiers is accomplished with a CXC via a CAN bus. The Cordex rectifier
shelves provide connections for serial communications with other rectifier shelves as well as supervisory and
control panels.
2.2 Front Panel
2.2.1 LEDs
The front panel LEDs provide:
• Rectifier status summary,
• Rectifier software upgrade in progress indication,
• Locate module pattern.
Rectifier status summary will show the rectifier alarm status, communication fail status and rectifier on/off status.
2.2.1.1 AC ON
The top LED (green) is on when AC is within valid range. The LED will flash (~2Hz) when AC is outside the
nominal range – AC voltage is invalid if the AC Mains Low alarm is active or AC is greater than the AC High
Shutdown point. The LED turns off when AC has failed.
2.2.1.2 DC ON
The middle LED (green) is on when the rectifier is delivering power to the load. The LED will flash when
communication is lost. The LED turns off when the rectifier is off; e.g., when commanded via the CXC.
2.2.1.3 ALARM
The bottom LED (red) is on continuously in the event of an active Module Fail alarm. The LED will flash (~2Hz)
when a minor alarm is detected. The LED remains off in the absence of an alarm.
2.2.1.4 LED Activity During Software Upload
When a rectifier software upload is in progress, the LEDs will behave in a distinctly different way to indicate new
rectifier software is being transferred from the CXC.
When a rectifier data transfer is in progress, all three LEDs will flash in a sequence lasting 1.5 seconds. When the
last LED is lit, the sequence is repeated beginning at the first LED.
2.2.1.5 LED Activity During ‘Locate Module’ Command from CXC
When the ‘locate module’ command has been received from the CXC, the LEDs will behave in another distinct
fashion so that the rectifier is easier to visually identify among adjacent rectifiers.
This state is entered when commanded via the CXC. The LEDs will flash in a ping-pong pattern repeating every 2
seconds.
The ping-pong pattern lights each LED sequentially. After the last LED is lit, each LED is lit in reverse sequence.
When the first LED is lit, the pattern repeats. The effect makes it appear as if the light is bouncing between the
first and last LED.
2.2.2 Mechanical
A thumbscrew is provided to secure the rectifier into the shelf. During normal operation the rectifier shall be
locked into position. A handle (or grip) is incorporated into the front panel to facilitate the removal of the rectifier
from the shelf. No special tools are required.