Technical Data; Identification; Function Block; Functionality - ABB RED615 Technical Manual

Section 4
Protection functions
4.1.6.9
4.1.6.10
4.1.7
4.1.7.1
4.1.7.2
4.1.7.3
240

Technical data

Table 243: T2PTTR Technical data
Characteristic
Operation accuracy
Operate time accuracy 1)
1) Overload current > 1.2 x Operate level temperature
Technical revision history
Table 244: T2PTTR Technical revision history
Technical revision
B
Motor load jam protection JAMPTOC

Identification

Function description
Motor load jam protection

Function block

GUID-FA5FAB32-8730-4985-B228-11B92DD9E626 V2 EN
Figure 120: Function block

Functionality

The motor load jam protection JAMPTOC is used for protecting the motor in stall
or mechanical jam situations during the running state.
When the motor is started, a separate function is used for the startup protection, and
JAMPTOC is normally blocked during the startup period. When the motor has
passed the starting phase, JAMPTOC monitors the magnitude of phase currents.
Value
Depending on the frequency of the current
measured: f ±2 Hz
n
Current measurement: ±1.5% of the set value or
±0.002 x I (at currents in the range of
n
0.01...4.00 x I )
n
±2.0% of the theoretical value or ±0.50 s
Change
Added the AMB_TEMP input
IEC 61850 IEC 60617
identification identification
JAMPTOC Ist>
1YHT530004D05 D
ANSI/IEEE C37.2
device number
51LR
615 series
Technical Manual