ABB REX640 - Motor Start-Up Supervision (STTPMSU); Loss of Load Supervision (LOFLPTUC) Main Settings; Motor Load Jam Protection (JAMPTOC) Main Settings; Motor Load Jam Protection (JAMPTOC)

Table 139. Loss of load supervision (LOFLPTUC) main settings
Parameter Function Value (Range) Step
Start value low LOFLPTUC 0.01...0.50 × I
n
0.01
Start value high LOFLPTUC
0.01...1.00 × I
n
0.01
Operate delay time LOFLPTUC 400...600000 ms 10
Operation LOFLPTUC 1 = on
5 = off
-
Table 140. Motor load jam protection (JAMPTOC)
Characteristic
Value
Operation accuracy Depending on the frequency of the measured current: f
n
±2 Hz
±1.5% of the set value or ±0.002 × I
n
Reset time Typically 40 ms
Reset ratio Typically 0.96
Retardation time <35 ms
Operate time accuracy in definite time mode ±1.0% of the set value or ±20 ms
Table 141. Motor load jam protection (JAMPTOC) main settings
Parameter
Function Value (Range) Step
Operation JAMPTOC 1 = on
5 = off
-
Start value JAMPTOC 0.10...10.00 × I
n
0.01
Operate delay time JAMPTOC 100...120000 ms 10
Table 142. Motor start-up supervision (STTPMSU)
Characteristic
Value
Operation accuracy Depending on the frequency of the measured current: f
n
±2 Hz
±1.5% of the set value or ±0.002 × I
n
Start time
1)2)
Minimum Typical Maximum
I
Fault
= 1.1 × set Start detection A
27 ms 30 ms 34 ms
Operate time accuracy ±1.0% of the set value or ±20 ms
Reset ratio Typically 0.90
1) Current before = 0.0 × I
n
, f
n
= 50 Hz, overcurrent in one phase, results based on statistical distribution of 1000 measurements
2) Includes the delay of the signal output contact
1MRS759144 A
REX640
Product version: 1
ABB 73