Monitored Data; Technical Data; Technical Revision History; Thermal Overload Protection For Motors Mpttr - ABB RELION 611 Series Technical Manual

Section 4
Protection functions
Table 138: LOFLPTUC Non group settings (Advanced)
Parameter
Reset delay time
4.1.5.8
4.1.5.9
4.1.5.10
4.1.6
4.1.6.1
144
Values (Range) Unit
0...60000 ms

Monitored data

Table 139: LOFLPTUC Monitored data
Name
START_DUR
LOFLPTUC

Technical data

Table 140: LOFLPTUC Technical data
Characteristic
Operation accuracy
Start time
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode

Technical revision history

Table 141: LOFLPTUC Technical revision history
Technical revision
B
C

Thermal overload protection for motors MPTTR

Identification

Function description
Thermal overload protection for motors
Step Default
1 20
Type Values (Range)
FLOAT32 0.00...100.00
Enum 1=on
2=blocked
3=test
4=test/blocked
5=off
Value
Depending on the frequency of the measured
current: f
±1.5% of the set value or ±0.002 × I
Typically 300 ms
Typically 40 ms
Typically 1.04
<35 ms
±1.0% of the set value or ±20 ms
Change
Internal improvement
Internal improvement
IEC 61850
identification
MPTTR
1MRS757454 D
Description
Reset delay time
Unit Description
% Ratio of start time /
operate time
Status
±2 Hz
n
n
IEC 60617 ANSI/IEEE C37.2
identification device number
3Ith>M 49M
Technical Manual
611 series