Section 5
IED operation
5.1
Normal operation
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, WHMI or with PCM600.
For more information, see PCM600 documentation.
5.2
Disturbance identification
Disturbances and their causes can be identified by indicator LEDs: Ready, Start
and Trip. During normal operation, the Ready LED is steady green.
Table 14:
Disturbance indications
LED
State
Description
Start LED
Yellow, steady
Protection started
Start LED
Yellow, flashing
Protection function blocked
Trip LED
Red, steady
Protection operated
Ready LED
Green, flashing
Internal fault
Further actions to be taken to identify the disturbance:
•
Checking programmable LEDs
•
Reading event history
•
Checking fault records
•
Analyzing disturbance recordings
1MRS756708 C
Section 5
IED operation
615 series
69
Operation Manual
