Emerson PACSystems RSTi-EP - Page 512

User Manual Section 12
GFK-2958L May 2021
LED Indicators and Troubleshooting 498
Module
LED
Status
Recommended action
—
Cold-junction compensation error (EP-
3804 only)
—
System bus cannot be accessed (for
example, caused by interruption of the
bus network adapter power supply)
—
Check the bus network adapter
supply voltage
EP-1813
Status LED
Red:
—
Error in supply voltage at input current
path
—
Communication error on the system bus
—
There is a new diagnostic message
—
Check that the module has been
snapped into place properly
—
Check the supply voltage
Channel LED
2.2
Yellow
—
Voltage >70 V at L1
2.3
—
Nominal input current (1 A / 5 A) or
parameterised limit exceeded
—
Check the feed-in current
—
Check the parameterised limit
—
Check whether the connections (1
A and 5 A) have been mixed up
—
Install a shunt
2.4
Red:
—
Nominal input voltage (300 V) or
parameterised limit exceeded
—
Check the Voltage
—
Chek the parameterised limit
Channel LED
3.2
Yellow
Voltage >70 V at L2
3.3
Red:
Nominal input current (1 A/5 A) or
parameterised limit exceeded
—
Check the feed-in current
—
Check the parameterised limit
—
Check whether the connections (1
A and 5 A) have been mixed up
Install a shunt
3.4
Red:
Nominal input voltage (300 V) or
parameterised limit exceeded
—
Check the Voltage
—
Chek the parameterised limit
Channel LED
4.2
Yellow
Voltage >70 V at L3
4.3
Red:
Nominal input current (1 A/5 A) or
parameterised limit exceeded
—
Check the feed-in current
—
Check the parameterised limit
—
Check whether the connections (1
A and 5 A) have been mixed up
Install a shunt
4.4
Red:
Nominal input voltage (300 V) or
parameterised limit exceeded
—
Check the Voltage
—
Chek the parameterised limit
—