| Functions |
Condition & Setting range |
Delay time |
| Overcurrent (I>,definite) |
Condition : load current exceeds setting threshold. Setting range:0 .3-16A,3-160A,100-999A. |
0 .5-60s |
| Overcurrent (I>,inverse) |
Condition : load current exceeds setting threshold. Setting range:0 .3-16A,3-160A,100-999A. |
class 1-5 see TCC |
| Undercurrent
(I<) |
Condition : load current less than setting threshold. Setting range same as overcurrent,
and the value must be less than overcurrent . |
0 .5-60s |
| Phase loss
(PL) |
Current unbalance exceeds 50% . |
2s |
| Current
unbalance
(ASYM |
Current unbalance exceeds setting threshold. Setting range:10-50%。
*Unbalance factor (%) = (Imax phase – Iaverage) / Iaverage x 100% |
5s |
| Start-up delay(dt) |
When motor is starting, LCD will show a countdown .
Overсurrent, undercurrent , lock-lotor,current unbalance are blocked during the start-up . |
0-200s |
| Lock-rotor (JAM) |
Load current exceeds setting threshold. Active only in motor running.
Setting range:1 .5-8 times of setting overcurrent. |
3s |
| Short circuit
(SC) |
Load current exceeds 10 times of setting overcurrent . |
≤50ms |
| Ground fault
(GF) |
Earth leakage current exceeds setting threshold. Setting range:30mA-2 .5A.
Should couple with a ZCT with CT ratio 5A/10mA. |
1s |
| Overvoltage
(U>) |
Power voltage exceeds setting threshold。 Setting range:65-690V, hystersis 5% .
overvoltage threshold couldn’t exceed +15% rated voltage. |
5s |
| Undervoltage
(U<) |
Power voltage less than setting threshold. Setting range:65-600V, hystersis 5% .
underoltage threshold couldn’t below -15% rated voltage. |
5s |
