Siemens SINAMICS S Manuel page 1249

Temperature sensor
+ temp
2 mA
X522.7
+
X522.8
-
KTY/PTC
- temp
<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 (refer to
[9577]).
<3> As a result of the wire
breakage monitoring
[9577.3] the
maximum
temperature that can
be measured is
limited to approx.
175 °C.
<4> A value > 250 °C de-
activates the alarm or
fault.
1 2
DO: TM31
Terminal module 31 (TM31) - temperature evaluation KTY/PTC
Hardware
Software
smoothing 1 s
smoothing 0.5 s
A
D
Measured temperature
<2>
Alarm A35920
temperature sensor evaluation
Alarm is not present
Alarm is present
-300 °C
3 4
R
<1>
Sensor type
T
KTY
p4100
Sensor
resistance
r4101
Resistance
PTC resistor
calculation
threshold 1650 Ohm
1
PTC
0
Sensor resistance [9577.1]
Temp. alarm threshold
-48...251 °C
p4102[0] (100)
<4>
1
0
1
0
<4>
Temp. fault threshold
-48...251 °C
p4102[1] (120)
5 6
fp_9576_01_eng.vsd
25.11.04 V02.04.00
p4099[0] (4000.00 µs)
248 °C
<3>
<1>
Sensor type
p4100
-140 °C
2
1
0
-50 °C
250 °C
1
A35211
"Overtemperature sensor TM31"
r4104.0
F35207
"Overtemperature sensor TM31"
r4104.1
TM31 Temperature actual value
r4105
7 8
Function diagram
- 9576 -
SINAMICS S