ABB RED650 - Page 494

Time Integration
Transgression Supervision
Plus Retain
BLOCK
ACCTIME
RESET
IN
tAlarm
OVERFLOW
WARNING
ALARM
IEC12000195-4-en.vsd
Loop Delay
Loop Delay
tWarning
IEC12000195 V4 EN-US
Figure 248: TEIGAPC Simplified logic
TEIGAPC main functionalities
• integration of the elapsed time when IN has been high
• applicable to long time integration (≤999 999.9 seconds)
• output ACCTIME presents integrated value in seconds
• integrated value is retained in nonvolatile memory
• any retained value with a warning/alarm/overflow is used as initiation
value for the integration following by a restart
• RESET: Reset of the integration value. Consequently all other outputs are also
reset
• unconditionally on the input IN value
• reset the value of the nonvolatile memory to zero
• BLOCK: Freeze the integration and block/reset the other outputs
• unconditionally on the signal value
• BLOCK request overrides RESET request
• Monitor and report the conditions of limit transgression
• overflow if output ACCTIME >999999.9 seconds
• alarm if ACCTIME > tAlarm
• warning if ACCTIME > tWarning
The ACCTIME output represents the integrated time in seconds while tOverflow,
tAlarm and tWarning are the time limit parameters in seconds.
tAlarm and tWarning are user settable limits. They are also independent, that is,
there is no check if tAlarm > tWarning.
Section 14 1MRK 505 394-UEN A
Logic
488 Line differential protection RED650 2.2 IEC
Technical manual