Monitored Data; Technical Data - ABB RELION REX640 Technical Manual

Section 4
Protection functions
4.1.9.9
4.1.9.10
402

Monitored data

Table 448: MPTTR Monitored data
Name Type
TEMP_AMB FLOAT32
THERMLEV_ST FLOAT32
THERMLEV_END FLOAT32
T_ENARESTART INT32
MPTTR Enum
Therm-Lev:1 FLOAT32

Technical data

Table 449: MPTTR Technical data
Characteristic
Operation accuracy
1)
Operate time accuracy
1) Overload current > 1.2 × Operate level temperature
Values (Range) Unit
-99...999 °C
0.00...9.99
0.00...9.99
0...99999 s
1=on
2=blocked
3=test
4=test/blocked
5=off
0.00...9.99
Value
Depending on the frequency of the measured
current: f ±2 Hz
n
Current measurement: ±1.5% of the set value or
±0.002 × I (at currents in the range of 0.01...4.00
n
× I )
n
±2.0% of the theoretical value or ±0.50 s
1MRS759142 C
Description
The ambient temperature
used in the calculation
Thermal level at
beginning of motor
startup
Thermal level at the end
of motor startup situation
Estimated time to reset of
block restart
Status
Thermal level of
protected object (1.00 is
the operate level)
REX640
Technical Manual