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Table 10.18 – Thermal overload stage T> (49)
Setting range:
Alarm setting range:
Time constant Tau:
Cooling time coefficient:
Max. overload at +40 °C
Max. overload at +70 °C
Ambient temperature
Resetting ratio (Start & trip)
Accuracy:
- operating time
Table 10.19 – Unbalance stage I
Setting range:
Definite time characteristic:
- operating time
Inverse time characteristic:
- 1 characteristic curve
- time multiplier K
1
- upper limit for inverse time
Start time
Reset time
Reset ratio
Inaccuracy:
- Starting
- Operate time
Table 10.20 – Incorrect phase sequence I
Setting:
- Operating time
- Reset time
Stage is blocked when motor has been running for 2 seconds.
Table 10.21 – Undercurrent protection stage I< (37)
Current setting range:
Definite time characteristic:
- operating time
Block limit:
Starting time
Resetting time
Resetting ratio
Accuracy:
- starting
- operating time
Technical Data
0.1 – 2.40 x I
or I
(step 0.01)
MOT
N
60 – 99 % (step 1%)
2 – 180 min (step 1)
1.0 – 10.0 xTau (step 0.1)
70 – 120 %I
(step 1)
MOT
50 – 100 %I
(step 1)
MOT
-55 – 125 °C (step 1°)
0.95
±5% or ±1 s
> (46)
2
2 – 70% (step 1%)
1.0 – 600.0s s (step 0.1)
Inv
1 – 50 s (step 1)
1 000 s
Typically 200 ms
<450 ms
0.95
±1% - unit
±5% or ±200 ms
>> (47)
2
80 % (fixed)
<120 ms
<105 ms
20 – 70 %I
(step 1%)
MODE
0.3 – 300.0s s (step 0.1)
15 % (fixed)
Typically 200 ms
<450 ms
1.05
±2% of set value
±1% or ±150 ms
857-UM001A-EN-P – July 2009
10-7
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