ABB Relion REG670, Technical Manual

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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
Figure 410: 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 15
1MRK502052-UEN B
Logic
854
Technical manual