Operation Accuracy; Memory Storage; Technical Data; Comparator For Integer Inputs Intcomp - Hitachi Relion 650 Series Technical Manual

Section 11
Logic
tAlarm and tWarning are user settable limits. They are independent, that is, there is no check if
tAlarm > tWarning.
tAlarm and tWarning can be defined with a resolution of 10 ms, depending on the level of the defined
values for the parameters.
tOverflow is for the overflow supervision with a default value tOverflow = 999 999.9 seconds. The
outputs freeze if an overflow occurs.
11.8.6.1

Operation Accuracy

The accuracy of TEIGGIO depends on essentially three factors
• task cycle time
• the pulse length
• the number of pulses, that is the number of rising and falling flank pairs
In principle, a shorter task cycle time, longer integrated time length or more pulses may lead to
reduced accuracy.
11.8.6.2

Memory storage

The value of the integrated elapsed time is retained in a non-volatile memory, only if any warning,
alarm or/and overflow occurs. Consequently there is a risk of data loss in the integrated time at a
power failure.
11.8.7

Technical data

Table 154: TEIGGIO Technical data
Elapsed time integration
11.9

Comparator for integer inputs INTCOMP

11.9.1

Identification

Function description
Comparison of integer values
11.9.2

Functionality

The function gives the possibility to monitor the level of integer values in the system relative to each
other or to a fixed value. It is a basic arithmetic function that can be used for monitoring, supervision,
interlocking and other logics.
148
Function Cycle time (ms)
5
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Range or value
0 ~ 999999.9 s
IEC 61850 IEC 60617
identification identification
INTCOMP Int<=>
1MRK 511 557-UEN Rev. A
GUID-E0772193-9F6E-43DA-B642-2923565E5D4C v1
GUID-6FDD6590-30F9-4CC1-AC9D-945544AB8688 v1
GUID-B258726E-1129-47C9-94F9-BE634A2085FA v1.2.1
Accuracy
±0.05% or ±0.01 s
GUID-5992B0F2-FC1B-4838-9BAB-2D2542BB264D v1
ANSI/IEEE C37.2
device number
GUID-A93564FA-0017-4939-A9C1-095DA0FD9832 v1
Technical Manual