Siemens SINAMICS S Series - Figure 2-267 9576 - Temperature evaluation KTY;PTC

Terminal Module 31 (TM31)
Function Diagrams
2-1399
© Siemens AG 2007 All Rights Reserved SINAMICS S List Manual (LH1), 07/2007
Figure 2-267 9576 – Temperature evaluation KTY/PTC
- 9576 -
Function diagram
87654321
fp_9576_51_eng.vsd
SINAMICS
25.11.04 V02.05.00
X522.7
X522.8
Sensor
resistance
r4101
Hardware
smoothing 1 s
0
1
0
1
Temp. alarm threshold
-48...251 °C
p4102[0] (100)
r4104.1
r4104.0
Software
smoothing 0.5 s
2 mA
KTY/PTC
Temperature sensor
-50 °C
0
1
1
2
Sensor type
p4100
PTC resistor
threshold 1650 Ohm
T
R
1
0
250 °C
KTY
PTC
248 °C
-140 °C
+
-
+ temp
- temp
Temp. fault threshold
-48...251 °C
p4102[1] (120)
Sensor type
p4100
<1>
<1> p4100
= 0: Evaluation disabled
= 1: PTC
= 2: KTY
Terminal Module 31 (TM31) - Temperature evaluation KTY/PTC
DO: TM31
<1>
A35211
"Overtemperature sensor TM31"
Alarm A35920
temperature sensor evaluation
F35207
"Overtemperature sensor TM31"
r4105
TM31 Temperature actual value
<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 (refer to
[9577]).
Sensor resistance [9577.1]
p4099[0] (4000.00 µs)
<2>
<3> As a result of the wire
breakage monitoring
[9577.3] the
maximum
temperature that can
be measured is
limited to approx.
175 °C.
Alarm is not present
Measured temperature
Alarm is present
-300 °C
A
D
Resistance
calculation
<3>
<4>
<4> A value > 250 °C de-
activates the alarm or
fault.
<4>