The converter is in exception status or disturbed.
The most frequent reason for exception status indicated by a flashing PWR LED or FLT LED is caused from operating the converter without a sensor connected (e.g. at the lab desk or during start-up). The unit periodically tests for line faults. If a fault is detected an error alarm is generated and the analogue output is set according to the alarm configuration. In this situation either the error message should be ignored or a sensor must be attached to the isolator.
An exception (no defect, no disturbance) also occurs if the device status is requested in the following situations:
· immediately after a cold start (reset)
· immediately after a change of the configuration