F01632 — SI P1 (CU): shutoff valve control/feedback signal error

The manuals title this fault "SI P1 (CU): shutoff valve control/feedback signal error". It is raised by the drive-integrated "Safety Integrated" function, monitoring channel 1, on the Control Unit: the channel has found a fault in the control or feedback signal of a shutoff valve and has initiated a STOP A. The valve is operated together with a Hydraulic Module, and the monitoring watches both the command path to the valve (X272) and the feedback signals that come back (X281/X282). The value stored in r0949, read as a decimal number, tells you in which valve operation or state the monitoring caught the problem.

• The shutoff valve is not connected, is wired incorrectly at X272, or the valve itself is defective.
• The feedback signal of the valve is not connected or is wired incorrectly at X281/X282.
• The contact configuration of the feedback signal is set incorrectly in p9626/p9826.
• The Hydraulic Module is defective.

1. Check that the shutoff valve is connected correctly at X272.
2. Check the valve feedback signals at X281 and X282.
3. Check the contact configuration of the feedback signals in p9626/p9826 and correct it if it does not match.
4. Review the control cabinet design and the cable routing for EMC compliance — the manual calls for shielded cables with the shield connected.
5. If the fault stays, replace the shutoff valve.
6. If the fault still stays, replace the Hydraulic Module.

The drive writes the following decimal values into r0949:

• 10, 11 — the fault occurred during the "Open shutoff valve" operation.
• 20 — the fault occurred in the "Shutoff valve open" state.
• 30, 31 — the fault occurred during the "Close shutoff valve" operation.
• 40 — the fault occurred in the "Shutoff valve closed" state.
• 50, 80 — a fault in the control/feedback signal of the cutoff valve, or a communication error between the Control Unit and the Hydraulic Module.

• p9626 — SI HLA shutoff valve feedback signal contact configuration (CU): check this setting when the fault points to a misconfigured feedback signal; it must match the contacts actually wired.
• p9826 — SI HLA shutoff valve feedback signal contact configuration (MM): the corresponding contact configuration for the MM, verify it together with p9626.
• r0949 — fault value: read it as a decimal number to identify the shutoff valve operation or state in which the fault was detected.

Remove the cause first, then acknowledge the fault. F01632 requires a POWER ON: the power supply of the drive must be switched off and on again before the drive can be started again.