Emerson PACSystems RSTi-EP - Page 513

User Manual Section 12
GFK-2958L May 2021
LED Indicators and Troubleshooting 499
Module
LED
Status
Recommended action
Analog output modules
EP-4164
EP-4264
Status LED
Red:
—
Error in supply voltage
—
Communication error
—
Channel error
—
Check that the module has been
snapped into place properly
—
Check the supply voltage
—
Check the channel error
Status LED off and all other LEDs red: Error in
the bus network adapter power supply
—
– Check the bus network adapter
supply voltage
Channel LED
1.1-4.1
Red:
—
Overload in voltage mode
—
Broken line in current mode
—
System bus cannot be accessed (for
example, caused by interruption of the
bus network adapter power supply)
—
Check the connected load, check
the cabling,
—
Check the bus network adapter
supply voltage
Power modules
EP-7631
Status LED
Red:
– Channel error or communication error on
the system bus, or there is an error in the
supply voltage
—
Check that the module has been
snapped into place properly
—
Check the channel error, check the
supply voltage
3.2
Red:
Supply voltage of the feed in plug < 18Vdc
—
Check supply voltage of feed in
plug
3.4
Red:
Damage of internal fuse
—
Replace module
EP-7641
Status LED
Red:
Channel error or communication error on the
system bus, or there is an error in the supply
voltage
—
Check that the module has been
snapped into place properly
—
Check the channel error, check the
supply voltage
3.2
Red:
Supply voltage of the feed in plug < 18Vdc
—
Check supply voltage of feed in
plug
3.4
Red:
Damage of internal fuse
—
Replace module
Potential distribution modules
EP-711F
EP-710F
Status LED
Red:
Error in supply voltage of the input path
—
Check that the module has been
snapped into place properly
—
Check the supply voltage
EP-751F
EP-750F
Status LED
Red:
Error in supply voltage of the input path
—
Check that the module has been
snapped into place properly
—
Check the supply voltage
EP-700F
Status LED
Off:
No supply voltage
—
Check that the module has been
snapped into place properly
Safety modules
EP-1901
Status LED
Red:
—
Module has not been snapped properly
—
Check that the module has been
snapped into place properly