User Manual

3 Function diagrams 3.14 Signals and monitoring functions
SINAMICS G120 CU230P-2 Control Units
642 List Manual (LH9), 04/2014, A5E33838102B AA
Fig. 3-131 8017 – Thermal motor models
- 8017 -
Function diagram
87654321
fp_8017_97_01.vsd
Signals and monitoring functions
G120 CU230P-2
07.04.2014 V4.7
Thermal motor models
0
1
0
1
[8016.4]
<1>
[8016.6]
<2>
Motor temperature model 1
(I2t)
(for synchronous motor only)
A07012
"Motor temperature model 1/3 overtemperature"
Only if there is a temperature sensor (p0601 > 0).
Only if <1> are not met.
r0035
Mot temp [°C]
model
not smoothed
r0068
I_act abs val [Arms]
[0]
– 40 K
p0605 – 40 K
• 100 [%]
model
The lower p0611 and the lower the reference current of the thermal motor model 1 (I2t), the faster A07012 is reached.
p0605 also defines the target temperature for p0034 = 100 %. Therefore, p0605 has no influence on the time up to alarm A07012.
<4>
Mot I_rated
p0305
I2t mot_mod T
p0611
I2t F thresh
p0615
Mot T_ambient
p0625
r0034
Mot_util therm [%]
Mod 1/2 threshold
p0605
[8016.1]
p0612.0 (0)
1 = Activate motor temperature model 1 (I2t)
p0612.1 (1)
1 = Activate motor
temperature model 2
Mot T_ambient
p0625
Mot T_over core
p0626
Mot T_over stator
p0627
Mot T_over rotor
p0628
Mot weight th mod
p0344
Mod T_ambient [°C]
r0630 [D]
Mod T_stator [°C]
r0631 [D]
Mod T_winding [°C]
r0632 [D]
Mod rotor temp [°C]
r0633 [D]
Calculated motor temperaturesRated motor temperature rise
Motor temperature model 2
(for induction motor only)
Mot temp response
p0610
Mot temp response
p0610
<5>
<5>
If p0610 = 12.
<1>
<2>
<3>
<4>
<5>
<3>