F35402 — TM: Temperature fault/alarm threshold channel 6 exceeded

F35402 reports that the temperature evaluation of channel 6 on a Terminal Module 150 (TM150) has tripped. Either the alarm threshold has stayed exceeded for longer than the set timer allows, or the fault threshold has been exceeded outright. This fault only causes the drive to shut down if there is at least one BICO interconnection between the drive and the Terminal Module. Depending on the drive's configuration, the same condition can also be output as an alarm (A) or with no reaction (N); in those cases it triggers no response and needs no acknowledgement.

• The alarm threshold of channel 6 (p4102[12]) has been exceeded for longer than the time set in the timer p4103[6].
• The fault threshold of channel 6, p4102[13], has been exceeded.

1. Allow the temperature sensor to cool down to below p4102[13] minus the hysteresis p4118[6]. While it cools, you can follow the measured temperature at connector output r4105[6].
2. If required, set the fault response to NONE by entering the fault number in p2100 and the response in p2101.

• The fault value in r0949 (interpret decimal) contains the temperature actual value at the time the fault was initiated, in 0.1 °C.
• For sensor type "PTC thermistor" and "Bimetallic NC contact" (p4100[6] = 1, 4): if the sensor resistance r4101[6] is greater than 1650 ohms, the temperature r4105[6] = 250 °C; if r4101[6] is less than or equal to 1650 ohms, the temperature r4105[6] = -50 °C.
• The temperature actual value is output via connector r4105[6] and can be interconnected.

• p4102[12] — alarm threshold of channel 6, monitored against the delay time in p4103[6].
• p4102[13] — fault threshold of channel 6; the sensor must cool below this value (minus hysteresis) before the fault can be cleared.
• p4103[6] — delay time of channel 6: how long the alarm threshold may be exceeded before the fault is initiated.
• p4100[6] — sensor type of channel 6; settings 1 and 4 select "PTC thermistor" and "Bimetallic NC contact", for which the resistance-based evaluation applies.
• p4118[6] — hysteresis of channel 6; subtracted from the fault threshold p4102[13] to give the temperature the sensor must cool below.
• p2100 / p2101 — enter the fault number in p2100 and set the response to NONE in p2101 if the fault response is to be changed.
• r4101[6] — measured sensor resistance of channel 6; compared with the 1650 ohms limit for PTC and bimetallic sensors.
• r4105[6] — connector output with the temperature actual value of channel 6; shows 250 °C or -50 °C for PTC and bimetallic sensors depending on the resistance.
• r0949 — fault value; holds the temperature at the time of initiation in 0.1 °C, to be interpreted as a decimal number.

Once the sensor has cooled below p4102[13] minus p4118[6], acknowledge the fault; acknowledgement takes effect immediately, and switching the power off and on again (POWER ON) also acknowledges it. After acknowledgement the drive can be restarted. When the condition is output as an alarm (A) or with no reaction (N), it requires no acknowledgement.