Application; Signals; Settings - ABB RELION 630 Series Technical Manual

1MRS757256 F
4.1.5
4.1.6
4.1.7
Table 237: MAPGAPC Group settings (basic)
Name Values (Range)
Start value
Start value Add
Operate delay time
PML630/Compact Load-Shedding Solution
Technical Manual

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 Start value Add and Start value settings. This allows a temporal
increase or decrease of the level detector depending on the sign and value of the Start
value Add setting, for example, when the emergency start is activated. If, for example,
Start value is 100, Start value Add is 20 and the ENA_ADD input is active, the input
signal needs to rise above 120 before MAPGAPC operates.

Signals

Table 235: MAPGAPC Input signals
Name
AI_VALUE
BLOCK
BLK_OPR
BLK_ST
FR_TIMER
ENA_ADD
Table 236: MAPGAPC Output signals
Name
OPERATE
START

Settings

Unit
-10000.0 - 10000.0 -
-100.0 - 100.0 -
0.03 - 200.00 s
Type Default Description
REAL 0.0 Analog input value
BOOLEAN 0 Block overall function
BOOLEAN 0 Block operate output
BOOLEAN 0 Block start output
BOOLEAN 0 Freeze internal operate timer
BOOLEAN 0 Enable start using added start value
Type Description
BOOLEAN Operated
BOOLEAN Started signal
Step Default
0.1 0.0
0.1 0.0
0.01 0.03
Section 4
Protection functions
Description
Start value
Added value to start value
Operate delay time
189