A35413 — TM: Temperature alarm threshold channel 7 exceeded

A35413 is raised by the temperature sensing of the Terminal Module 150 (TM150): the temperature measured on channel 7 and held in r4105[7] has exceeded the alarm threshold stored in p4102[14]. The drive takes no automatic action on this alarm — it only signals that the threshold was crossed. Depending on how the drive is configured, the same condition can also be output as a fault or as a message with no reaction.

• The temperature measured using the temperature sensing of the Terminal Module 150 (TM150), held in r4105[7], has exceeded the threshold value in p4102[14] that initiates this alarm.

1. Read the actual temperature of channel 7 in r4105[7]. The alarm value r2124, interpreted decimal, shows the temperature present when the alarm was initiated (in 0.1 °C).
2. If the sensor type in p4100[7] is set to PTC thermistor or Bimetallic NC contact (p4100[7] = 1 or 4), read the sensor resistance in r4101[7]: above 1650 ohms the drive sets r4105[7] to 250 °C, at 1650 ohms or below to -50 °C, so the displayed temperature follows directly from the resistance.
3. Allow the temperature sensor to cool down to below p4102[14] minus the hysteresis in p4118[7]. The alarm then clears by itself.

• Alarm value r2124, interpret decimal: the temperature actual value at the time the alarm was initiated, given in 0.1 °C.

• p4102[14] — supplementary temperature alarm threshold: sets the channel 7 temperature at which A35413 is initiated; the sensor must cool below this value minus the hysteresis before the alarm clears.
• p4118[7] — TM150 threshold hysteresis: determines how far below p4102[14] the temperature must fall for the alarm to clear.
• r4105[7] — temperature actual value of channel 7 (parameter name Spindle supplementary temperature actual value, CO): the measured temperature that is compared against p4102[14].
• p4100[7] — sensor type of channel 7: value 1 selects a PTC thermistor, value 4 a Bimetallic NC contact.
• r4101[7] — sensor resistance measured at the terminal module: for the PTC and bimetallic sensor types it decides whether r4105[7] shows 250 °C or -50 °C.
• r2124 — alarm value: stores the temperature at the time the alarm was initiated, in 0.1 °C, interpret decimal.

No acknowledgment is required for the alarm: as soon as the sensor has cooled to below p4102[14] minus the hysteresis in p4118[7], the message clears on its own. If the drive is configured to issue the same condition as a fault, the fault is acknowledged immediately (POWER ON).