User Manual

Signals and monitoring functions
Function diagrams
2-679
© Siemens AG 2009 - 2013 All Rights Reserved SINAMICS G120 CU240B/E-2 Control Units List Manual (LH11), 01/2013
Fig. 2-138 8017 – Thermal motor models
- 8017 -
Function diagram
87654321
fp_8017_97_02.vsd
Signals and monitoring functions
G120 CU240B/E-2
12.12.2012 V4.6
Thermal motor models
<1>
0
1
0
1
[8016.5]
<1>
[8016.6]
<2>
<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 = 2).
Only if <1> are not met.
r0035
Mot temp [°C]
model
not smoothed
r0068
I_act abs val [Aeff]
[0]
– 40 K
p0605 – 40 K
x 100 [%]
model
<3>
If p0318 = 0 A, then p0305 is used as reference current.
The lower p0611 and the lower the reference current of the motor temperature model 1 (I2t), the faster A07012 is reached.
<3>
<4> p0605 also defines the target temperature for p0034 = 100%. Therefore, p0605 has no influence on the time up to alarm A07012.
<4>
Mot I_standstill
p0318
I2t mot_mod T
p0611
I2t F thresh
p0615
Mot T_ambient
p0625
r0034
Motor utilization [%]
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 T_rotor [°C]
r0633 [D]
Calculated motor temperaturesRated motor temperature rise
Motor temperature model 2
(for induction motor only)
Mot temp response
p0610
<5>
<5>
Mot temp response
p0610
<5>
If p0610 = 12.