Evaluating Temperature Channels; Motor Module/Power Module Chassis Format - Siemens SINAMICS S120 Function Manual

8.5.7.4

Evaluating temperature channels

For each of the individual 12 temperature channels, an alarm threshold and a fault threshold
can be set in p4102[0...23]. The even parameter indices contain the alarm threshold and the
uneven parameter indices, the fault threshold. The temperature thresholds can be set
between -99°C and +251°C for each channel.
If the evaluation of the temperature actual value from p4105[0...11] exceeds the alarm
threshold set in p4102[0...23], then an alarm is output at r4104.0...23. Timer p4103[0...11] is
started at the same time.
If, after the timer has expired, the temperature actual value is still above the alarm threshold,
then an appropriate fault is output. This fault can be acknowledged as soon as the
temperature actual value is again below the alarm threshold.
If the evaluation of the temperature actual value from p4105[0...11] has exceeded the fault
threshold set in p4102[0...23], then the corresponding fault is immediately activated.
Using p4118[0...11], a hysteresis for p4102[0...23] can be set for each channel.
Using p4119[0...11], a filter can be activated to smooth the temperature signal for each
channel.
The time constant of the filter depends on the number of active temperature channels and
can be read in r4120.
Failure of a sensor
Using parameter p4117[0...2], the response to the failure of a temperature sensor can be set
within a group:
● p4117 = 0 is set. The failed sensor is not taken into account.
● p4117 = 1 is set. The group outputs the value -300 °C to the outputs for the maximum
8.5.8

Motor Module/Power Module chassis format

Motor Modules have a direct connection for a motor temperature sensor. You can evaluate
PTC, KTY84, PT100 or bimetallic NC contact temperature sensors. The terminals of the
temperature sensors at a Motor Module depend on their design.
Table 8- 7
Device
Single Motor Module chassis
Single Motor Module booksize
Single Motor Module booksize compact
Double Motor Module booksize
Drive functions
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
value, minimum value and the mean value.
Temperature sensor connection at the Motor Module
Monitoring and protective functions
8.5 Thermal motor protection
Terminal +Temp
X41 4
X21 1
X21 1
X21 / X22 1 / 1
-Temp
3
2
2
2 / 2
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