9
Instruction Leaflet
IL012002EN
Effective March 2013
Instruction Leaflet for Modbus Power Monitoring/
Metering Module (PM3) for FD, JG, and KD/LG
Circuit Breakers and Motor Circuit Protectors
EATON CORPORATION
www.eaton.com
2. Indicators
Figure 11. Status Indicators (KD/LG PM3).
2.1. Status Indicator
A single green LED is used to indicate the status of the
Measurement Board. The indicator has three states:
1. OFF
No light emission indicates internal DC power is not available, or the
Measurement Board has malfunctioned.
2. ON
Continuous light emission indicates power is applied, but the
Measurement Board is executing a power-on self test.
3. Slow Flash
Repetitive one second on, one second off indicates the
Measurement Board is operating normally.
Fast Flash
0.5 second on, 0.5 second off indicates one of three failures:
•
Unit not calibrated;
•
Unit has not been assembled properly; or
•
Unit memory has been damaged.
Status
RX Led
TX Led
A
B
Com
DC Common
+24
VDC
Earth
Ground
Settings
Network Address
V
Neutral
Red Bell Alarm
Common
Blue Aux Alarm
No Connect
2.2. Modbus Status Indicator
Modbus Rx Indicator
When illuminated, this green LED indicates the Communications
Board is receiving messages on the Modbus network.
ote:
N
This LED will typically be a solid green. That is, it will not flash as the
transmit LED does.
Modbus Tx Indicator
When illuminated, this green LED indicates the Communications
Board is transmitting a message on the Modbus network.
ote:
N
This LED typically flashes as the Communications Board transmits
messages over the Modbus network.