Section 5 IED operation
5.1 Normal operation
The basic operation procedures in normal IED use situation are:
• 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 on the basis of indicator LEDs: Ready,
Start and Trip. In normal operation, the Ready LED is steady green.
Table 13: 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 alarm LEDs
• Reading event history
• Checking fault records
• Analyzing disturbance recordings
1MRS756708 A Section 5
IED operation
615 series 63
Operation Manual
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