ABB REG670 - Page 860

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