Yaskawa MotionWorks IEC - Manual (Page 162)

PLCopenPlus Function Blocks for Motion Control 2013-04-13 154
system. Verify the value of AxisNum matches a logical axis
number in the configuration. Tip: Make sure AXIS_REF is
properly declared as a VAR or VAR_GLOBAL in all relevant
POUs.
4642 Direction does not correspond to a valid enumeration value.
4646 Mode does not correspond to a valid enumeration value.
4658 Velocity parameter is less than or equal to zero.
4897 The drive's model number or type does not match the
parameter file.
57620 The structure size does not match.
Example