Endress+Hauser Proline Promass E 500 - Sensor Connection Housing

Diagnostics and troubleshooting Proline Promass E 500 PROFIBUS PA
188 Endress+Hauser
12.2.2 Sensor connection housing
Proline 500 – digital
Various light emitting diodes (LED) on the ISEM electronics unit (intelligent sensor
electronics module) in the sensor connection housing provide information about the device
status.
64
63
61
62
A
B
L-
L+
Communication
Power
Communication
Alarm
Power
1
2
3
A0029699
1 Communication
2 Device status
3 Supply voltage
LED Color Meaning
1 Communication White Communication active.
2 Device status (normal
operation)
Red Error
Flashing red Warning
2 Device status (during
start-up)
Flashes red slowly If > 30 seconds: problem with the boot loader.
Flashes red quickly If > 30 seconds: compatibility problem when
reading the firmware.
3 Supply voltage Green Supply voltage is ok.
Off Supply voltage is off or too low.