Allen-Bradley 1404-M4, User Manual

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Publication 1404-UM001D-EN-E - October 2004
3-16 Powermonitor 3000 Operations
Displaying Information
The display screen consists of two rows of five alpha-numeric LED
digits. At the right of this screen is a column of phase indicators: L1,
L2, L3 and N. These indicators show which phase (or phases) is
referred to by the information being displayed on the 2x5 screen. The
phase indicators also indicate program mode by flashing.
Power Up
When the DM powers up, it first illuminates all of its LED’s for
approximately 2 seconds. It then displays its firmware revision
number:

.

.

.

After about 2 seconds, the display waits for communication with the
Master Module. If it doesn’t receive any messages within 8 seconds, it
displays:


At any time, if the DM stops receiving information from the Master
Module, it displays the Check Rx message. If it is receiving messages
but not able to send messages (it determines this from a lack of
response from the Master Module), the DM displays:


Once the DM begins communicating with the Master Module, it
displays it on the screen and the Check Rx or Check Tx messages
disappear. No operator intervention is required to clear these
messages.