ABB UMC100.3 Manual page 46

46 C U S T O M A P P L I C AT I O N E D I T O R M A N U A L
—
Function block reference
—
Current
This function block provides access to the signals of the motor current measurement unit of the UMC.
Function Block
Inputs
Outputs (from top to bottom)
Parameters
Signal Name
-
Motor Current: Actual current as a percentage of I
of 800 to 800%.
Undercurrent Trip / Warn: The output is set to logical 1 if the actual current is below the
user-defined undercurrent trip level / warn level.
Overcurrent Trip / Warn: The output is set to logical 1 if the actual current is above the
user defined overcurrent trip / warn level.
Blocking (locked rotor): The output is set to logical 1 if a blocking fault was detected.
Phase Loss: The output is set to logical 1 if a phase loss was detected.
Current Imbalance [%](W): Actual current imbalance in % (0% means no imbalance).
Current Unbalance Trip / Warn: The motor current unbalance is above the user defined
warning / trip level.
Wrong Phase Sequence: The phases are in the wrong order. Normally the order shall be L1/
L2/L3.
Wrong Line Frequency: The line frequency is outside the specified limits.
Line Frequency [Hz] (W): The acutal line frequency in Hz. A value of XXX means 50Hz. A
value of YYY meams 60Hz.
Current Flow: The output is set to logical 1 as soon as current flow is detected.
See chapter "Motor Protection Functions" of the UMC100 technical manual.
A value of 0 corresponds to 0%. A value
e.
Data Type
-
Word
Boolean
Boolean
Boolean
Boolean
Word
Boolean
Boolean.
Boolean
Word
Bool