F06255 — Infeed: temperature threshold value not permissible

F06255 is raised by the infeed when at least one configured temperature threshold value lies outside its permissible value range. The thresholds concerned belong to the temperature evaluation of a Voltage Sensing Module (VSM); the fault value shows which module and which threshold pair are affected. Depending on the drive's configuration, the same condition can also be signalled as an alarm.

• At least one temperature threshold value is set outside the permissible value range.
• With sensor type KTY84 (p3665 = 2) or PT1000 (p3665 = 6), the value range from 181 °C to 300 °C is not permissible.
• For the thresholds in p3667/p3668 of a liquid-cooled Active Interface Module (AIM), the value range between 71 °C and 300 °C is also not permissible.

1. Read the fault value in r0949 bitwise binary: the bit number corresponds to the number of the Voltage Sensing Module (VSM) involved.
2. Bit 0 set: check the values in p3667/p3668. With p3665 = 2 (KTY84) or p3665 = 6 (PT1000), values from 181 °C to 300 °C are not permissible; for a liquid-cooled AIM, values between 71 °C and 300 °C are also not permissible.
3. Bit 1 set: check the value in p5467[0]/p5468[0].
4. Bit 2 set: check the value in p5467[1]/p5468[1].
5. Set the temperature thresholds within the measuring range.

• The message value is the fault value that the drive stores in r0949; interpret it bitwise binary — the bit number corresponds to the number of the Voltage Sensing Module (VSM) involved.
• Bit 0: the value in p3667/p3668 is outside the permissible value range. For a liquid-cooled Active Interface Module (AIM), the value range between 71 °C and 300 °C is also not permissible.
• Bit 1: the value in p5467[0]/p5468[0] is outside the permissible value range.
• Bit 2: the value in p5467[1]/p5468[1] is outside the permissible value range.

• p3665 (VSM temperature evaluation sensor type): shows whether KTY84 (= 2) or PT1000 (= 6) is set — for these sensor types the 181 °C to 300 °C range is not permissible.
• p3667 (VSM overtemperature alarm threshold): bit 0 of the fault value reports this value as outside the permissible range; set it within the measuring range.
• p3668 (VSM overtemperature shutdown threshold): likewise reported via bit 0; set it within the measuring range.
• p5467 (VSM2 overtemperature alarm threshold): bits 1 and 2 of the fault value report p5467[0] and p5467[1]; set the affected value within the measuring range.
• p5468 (VSM2 overtemperature shutdown threshold): likewise reported via bits 1 ([0]) and 2 ([1]); set the affected value within the measuring range.
• r0949 (fault value): read it bitwise binary to find which VSM and which threshold pair triggered the message.

First set the affected thresholds within the permissible range. Then acknowledge the fault immediately; the acknowledgement requires a POWER ON of the drive, after which the infeed can be restarted.