Emerson PACSystems RSTi-EP User Manual page 426

User Manual
GFK-2958J
3.2
3.4
Potential distribution modules
EP-711F Status LED
EP-710F
EP-751F Status LED
EP-750F
EP-700F Status LED
Safety modules
EP-1901 Status LED
LED Indicators and Troubleshooting
Channel error or communication error on the
system bus, or there is an error in the supply
voltage
Red:
Supply voltage of the feed in plug < 18Vdc
Red:
Damage of internal fuse
Red:
Error in supply voltage of the input path
Red:
Error in supply voltage of the input path
Off:
No supply voltage
Red:
Module has not been snapped properly
—
Error in the supply voltage
—
Channel error
—
Overload at the OSSD output level
—
External feed-in recognized from field
—
side
Internal error detected
—
Check the channel error, check
—
the supply voltage
Check supply voltage of feed in
—
plug
Replace module
—
Check that the module has been
—
snapped into place properly
Check the supply voltage
—
Check that the module has been
—
snapped into place properly
Check the supply voltage
—
Check that the module has been
—
snapped into place properly
Check that the module has been
—
snapped into place properly
Check the supply voltage
—
check +24 V input current path
—
Check voltage on plug 4.3; in
—
case of cascading 0 V might be
properly, therefore this is not an
error
Check channel error
—
Remove cross connection at
—
OSSD
Measure voltage at OSSD pin
—
(4.3) vs. GND (4.4).
If a voltage is present, check the
—
wiring.
Attention: safety hazard! Shut
—
down the system and prevent it
from switching on again.
Module might have switched off
—
caused by overtemperature;
check the temperature inside the
switch cabinet
Perform a cold start within 24
—
hours
If the error has not been fixed,
—
send the module to Emerson for
a technical examination.
Chapter 12
Oct 2019
411