A35417 — TM: Temperature alarm threshold channel 11 exceeded

A35417 is raised by the temperature sensing of the Terminal Module 150 (TM150) when the temperature measured on channel 11 (r4105[11]) rises above the alarm threshold set in p4102[22]. Depending on the drive configuration, the same condition can also be issued as a fault (F) or with no reaction (N). The alarm value r2124 holds the temperature actual value at the time the alarm was initiated, in 0.1 °C.

• The temperature (r4105[11]) measured using the temperature sensing of the Terminal Module 150 (TM150) has exceeded the threshold value that initiates this alarm (p4102[22]).
• For the sensor types "PTC thermistor" and "Bimetallic NC contact" (p4100[11] = 1, 4), the drive derives the temperature from the sensor resistance: if r4101[11] > 1650 ohms, then r4105[11] = 250 °C; if r4101[11] <= 1650 ohms, then r4105[11] = -50 °C — for these sensor types the reported temperature therefore takes one of these two fixed values according to the resistance.

1. Read the channel-11 temperature actual value in r4105[11] and compare it with the alarm threshold in p4102[22].
2. Read the alarm value r2124 (interpret decimal): it holds the temperature actual value at the time the alarm was initiated, in 0.1 °C.
3. If p4100[11] = 1 or 4 (PTC thermistor or bimetallic NC contact), check the sensor resistance r4101[11]: above 1650 ohms the drive reports 250 °C, at 1650 ohms or below it reports -50 °C.
4. Let the temperature sensor cool down until the temperature is below p4102[22] - hysteresis (p4118[11]).

• Alarm value r2124, interpret decimal: the temperature actual value at the time of initiation, in 0.1 °C.

• r4105[11] — CO: spindle supplementary temperature actual value; the channel-11 temperature whose exceeding of the threshold initiates A35417.
• p4102[22] — spindle supplementary temperature fault threshold/alarm threshold; the alarm threshold that was exceeded and the reference for the cool-down target.
• p4100[11] — spindle supplementary temperature sensor type; = 1 or 4 means a PTC thermistor or a bimetallic NC contact is used, and then the temperature is derived from the resistance r4101[11].
• r4101[11] — sensor resistance (manual: TM120 sensor resistance); compare it with 1650 ohms to interpret the reported values of 250 °C or -50 °C.
• r2124 — alarm value; read it (interpret decimal) to see the temperature actual value at the time the alarm was initiated, in 0.1 °C.
• p4118[11] — TM150 fault threshold/alarm threshold hysteresis; subtracted from p4102[22] to obtain the temperature below which the alarm clears.

The alarm requires no acknowledgement: it clears itself once the temperature sensor has cooled to below p4102[22] - hysteresis (p4118[11]). If the drive is configured to issue this condition as a fault instead, the drive takes no automatic action and the fault is acknowledged immediately by POWER ON.