Fig. 3-199 9576 – Temperature evaluation (KTY/PTC)
- 9576 -
Function diagram
87654321
fp_9576_51_eng.vsd
SINAMICS
21.01.13 V04.07.00
<1> p4100
= 0: Evaluation disabled
= 1: PTC
= 2: KTY
<2> An alarm A35920 in the temperature evaluation of the TM31 is signaled to the next (downstream) vector control via the
special temperature value -300 °C.
<3> As a result of the wire breakage monitoring the maximum temperature that can be measured is limited to approx.
188.6 °C.
<4> A value > 250 °C de-activates the alarm or fault.
<5> For KTY p4103 = 0 Output from TempTimer (0).
For PTC p4103 = 0 delay time = 0s.
Terminal Module 31 (TM31) - Temperature evaluation (KTY/PTC)
DO: TM31
X522.7
X522.8
Hardware
smoothing 1 s
Software
smoothing 0.5 s
2 mA
KTY/PTC
Temperature
sensor
+
-
+ temp
- temp
Sensortyp
p4100
<1>
Alarm is present
-300 °C
1
1
0
r4104.1
0
1
0
1
Measured temperature
T0
A35211
"Alarm is present"
F35207
"Fault is present"
r4104.0
r4105
TM31 temp act val
<5>
A35920
Error temp_sensor ch 0
<2>
<4>
<4>
Fault threshold
-48...251 °C
p4102[1] (120)
only for KTY84
R_Sensor
r4101
1650 Ohm (PTC)
KTY
PTC
Sensortype
p4100
<1>
A
D
0
1
KTY
PTC
-50 °C
250 °C
1 0
R
T
188.6 °C
-140 °C
<4>
<3>
p4099[0] (4000.00 μs)
2
1
0
R
e
s
is
t
a
n
c
e
c
a
lc
u
la
t
io
n
Alarm threshold
-48...251 °C
p4102[0] (100)
p4103
-300
°C
5 K
5 K