User Manual

Publication 193-UM010A-EN-P – January 2008
4-2 Troubleshooting
Configuration Error Mode
In this mode, the E1 Plus PROFIBUS Module’s NETWORK STATUS LED flashes red at 1Hz.
Fatal Error Mode
In Fatal Error Mode, the E1 Plus PROFIBUS Module’s NETWORK STATUS LED turns solid
red. The overload relay continues in this state as long as the device is powered.
The only way to recover from this mode is to power-cycle the module.
PROFIBUS Troubleshooting
Procedures
Network Status LED
The following table identifies possible causes and corrective actions when troubleshooting
PROFIBUS-related failures using the NETWORK STATUS LED.
Error Type Description LED State
Configuration Error Configuration fault or parameter fault Flashing Red (1Hz)
Error Type Description LED State
Fatal Power-up initialization failure Solid Red
Fatal communication error
Table 4.4 Troubleshooting using NETWORK STATUS LED
Color State Possible Cause Corrective Action
None - 1. The E1 Plus PROFIBUS Module is not receiving power at
the PROFIBUS connector.
2. The module is off-line
Check power and PROFIBUS cable connections.
Green
Red
Off
Flashing (once) Normal operating state; The E1 Plus PROFIBUS Module is
performing internal initialization procedures.
No action required; the Network Status LED flashes
green-red-off during a normal power-up sequence.
Green Flashing (1Hz) Normal operating state; E1 Plus PROFIBUS Module is in idle
state.
No action required.
Green Solid Normal operating state; the E1 Plus PROFIBUS Module is
on-line.
No action required.
Red Flashing (1Hz) 1. Configuration fault
2. Parameter fault
Correct the configuration and restart the PROFIBUS master.
Red Solid A fatal error has occurred in the module. Cycle power to the unit and network. If the fault still exists,
replace unit.
Red Lit 1s then off Major internal fault Cycle power to the unit and network. If the fault still exists,
replace unit. If the problem persists, contact technical support.