Section 6
IED operation
6.1
Normal operation
GUID-25794CEB-1F3A-452E-92B4-DDAD6F058CAF v6
In a normal IED use situation, the basic operation includes monitoring and checking
procedures.
•
Monitoring measured values
•
Checking object states
•
Checking function setting parameters
•
Checking events and alarms
All basic operations can be performed via the LHMI or with PCM600.
For more information, see PCM600 documentation.
6.2
Disturbance identification
GUID-A1EB4334-DAF0-439E-8EB4-8ED02C610DAA v8
Disturbances and their causes can be identified by indicator LEDs: Ready, Start and Trip.
During normal operation, the Ready LED is steady green.
For the LEDs to operate, the disturbance recorder has to be defined in the configuration.
Table 13: Disturbance indications
LED
State
Description
Start LED
Yellow, steady
Protection started
Trip LED
Red, steady
Protection operated
Further actions to be taken to identify the disturbance:
•
Checking alarm LEDs
•
Reading event history
•
Checking fault records
•
Analyzing disturbance recordings
Document the disturbance before clearing the information from the IED.
Only authorized and skilled personnel should analyze possible errors and decide
on further actions. Otherwise, stored disturbance data can be lost.
1MRK 500 127-UEN D
Section 6
IED operation
670 series
47
Operation manual
