![background image](http://html.mh-extra.com/html/abb/615-series-ansi/615-series-ansi_technical-manual_4665419.webp)
Section 5
1MAC050144-MB C
Protection related functions
412
615 series ANSI
Technical Manual
influence of the BLOCK signal activation is preselected with the global setting Blocking
mode.
The Blocking mode setting has three blocking methods. In the "Freeze timers" mode, the
trip timer is frozen to the prevailing value. In the "Block all" mode, the whole function is
blocked and the timers are reset. In the "Block TRIP output" mode, the function operates
normally but the TRIP output is not activated.
5.6.5
Application
The function block can be used for any general analog signal protection, either
underprotection or overprotection. The setting range is wide, allowing various protection
schemes for the function. Thus, the absolute hysteresis can be set to a value that suits the
application.
The temperature protection using the RTD sensors can be done using the function block.
The measured temperature can be fed from the RTD sensor to the function input that
detects too high temperatures in the motor bearings or windings, for example. When the
ENA_ADD input is enabled, the threshold value of the internal comparator is the sum of
the
Pickup Value Add
and
Pickup Value
settings. This allows a temporal increase or
decrease of the level detector depending on the sign and value of the
Pickup Value Add
setting, for example, when the emergency start is activated. If, for example,
Pickup Value
is 100,
Pickup Value Add
is 20 and the ENA_ADD input is active, the input signal needs
to rise above 120 before MAP trips.
5.6.6
Signals
Table 363: MAP Input Signals
Table 364: MAP Output Signals:
5.6.7
Settings
Table 365: MAP Group Settings
Name
Type
Default
Description
AI_VALUE
FLOAT32
0
Analogue input value
BLOCK
BOOLEAN
0=False
Block signal for activating the blocking mode
ENA_ADD
BOOLEAN
0=False
Enable start added
Name
Type
Description
TRIP
BOOLEAN
Trip Signal
PICKUP
BOOLEAN
Pickup Indicator
Parameter
Values (Range)
Unit
Step
Default
Description
Pickup value
-10000.0...10000.0
0.1
0
Pickup value
Pickup value Add
-100.0...100.0
0.1
0
Pickup value Add
Trip delay time
0...200000
ms
100
0
Trip delay time
Содержание 615 Series ANSI
Страница 1: ...Relion Protection and Control 615 series ANSI Technical Manual ...
Страница 2: ......
Страница 29: ...1MAC050144 MB C Section 615 series ANSI 22 Technical Manual ...
Страница 389: ...Section 4 1MAC050144 MB C Protection functions 382 615 series ANSI Technical Manual ...
Страница 485: ...Section 6 1MAC050144 MB C Supervision functions 478 615 series ANSI Technical Manual ...
Страница 635: ...Section 10 1MAC050144 MB C Other functions 628 615 series ANSI Technical Manual ...
Страница 707: ...Section 15 1MAC050144 MB C Applicable standards and regulations 700 615 series ANSI Technical Manual ...
Страница 711: ...Section 16 1MAC050144 MB C Glossary 704 615 series ANSI Technical Manual ...
Страница 712: ......