Veikong VFD500 User Manual page 12

-Fault code, "XXX" is the fault type, For details,
Er.xxx please
Troubleshooting"
Communication failure code, "XXX" is the failure
type, Cr.001-Cr005 represents the data error, Cr.006
Cr.xxx
is the communication timeout, and Cr.007 is the CRC
check error.
The LED's own parameters can be set in the "LEd"
PAr.xxx menu mode, see "LED Setting Mode (-LEd-)" for
details.
Table 3-1 digital tube display symbols and meanings
refer to "VFD500
11
User Manual