F07750 — Drive: Parameter invalid

F07750 (Drive: Parameter invalid) means that a parameter value has been set that is not valid, or was not correctly entered. The drive raises the fault on the HLA drive object; the message value states which parameter is affected, at which index, and for which of the fault causes decoded below.

• A parameter value has been set that is not valid, or was not correctly entered.
• Which condition is violated is shown by the fault cause in the fault value: a zero value that is not permitted, a piston rod greater than the piston diameter, a cylinder parameterized without piston rod, or a possible position overflow in the traversing range.

1. Take the affected parameter, the index and the fault cause from the message value; the same information is coded in the fault value in r0949.
2. Fault cause 0: the parameter has the value zero that is not permitted — set the parameter to a value that is permitted for it.
3. Fault cause 1: the piston rod is greater than the piston diameter — set the parameters to values in which the piston rod is not greater than the piston diameter.
4. Fault cause 2: p0311 = 0 and p0312 = 0, i.e. the cylinder is parameterized without a piston rod — set p0311 and p0312 to correct values.
5. Fault cause 3: position overflow possible in the traversing range — check p0407 and p0313 and, if required, reduce p0418.

• The drive enters the affected parameter, the index and the fault cause into the message value (Parameter: %1, index: %2, fault cause: %3).
• The fault value is read in r0949 and is interpreted hexadecimal: ccbbaaaa hex, where cc = fault cause, bb = index and aaaa = parameter.
• cc = 0: parameter has the value zero that is not permitted.
• cc = 1: piston rod greater than piston diameter.
• cc = 2: cylinder without piston rod (p0311 = 0 and p0312 = 0).
• cc = 3: position overflow possible in the traversing range (check p0407 and p0313 and if required, reduce p0418).

• r0949 (fault value): read the coded fault value here — interpreted hexadecimal it yields the fault cause, the index and the parameter.
• p0311 (cylinder piston rod diameter A side): with p0312 it triggers fault cause 2 when it is 0; set it to a correct value.
• p0312 (cylinder piston rod diameter B side): with p0311 it triggers fault cause 2 when it is 0; set it to a correct value.
• p0407 (linear encoder grid division): check this parameter when fault cause 3 is present.
• p0313 (cylinder piston stroke): check this parameter when fault cause 3 is present.
• p0418 (fine resolution Gx_XIST1, in bits): if required, reduce this parameter when fault cause 3 is present.

Acknowledge the fault immediately; the drive can then be restarted. Set the specified parameters to a correct value before the drive runs again, otherwise the fault is raised again.