Yaskawa VCD 723 - Manual (Page 40)

Function
Number
Description
Table 7. Function Number Assignments
3 Operation
34 General Operation
9/15/93
When a fault message is displayed, the source of the fault should be
corrected. After the fault source is corrected, the fault may be cleared by
pressing the RST key on the LCDU.
•
As part of the program’s startup procedure, it checks the validity of the
parameters that are stored in non-volatile memory. If the values are
invalid, then the following message is displayed on the Local Control
Display Unit:
BAD NVRAM CRC
ENT FOR DEFAULTS
If this occurs, press the ENT key. The factory programmed default values
will then be loaded into non-volatile memory.
After the drive has powered up and the display is showing “Powered Up and
Ready”, or a fault number, the LCDU can be used to enter new values for
parameters, monitor drive functions, and perform certain drive diagnostics. Every
operation that the LCDU performs is called a “function”. Each function is
assigned a unique number. Function numbers and descriptions are listed in Table 7.
000 Fault Display/Clear
1 to 599 PAC Dependent Parameter Values
600-799 PAC Dependent Monitor Only Values
800 Error Display
801 Modify Fault and Error Declarations
802-899 Reserved for Advanced Fault and Error Control
900-979 Reserved for Diagnostics and Tests
980 (P) PAC Block Trace Monitor
981-991 Reserved for Diagnostics and Tests
992 (L) Upload/Download of Program or Parameters
993 (P) Reset All Non-Volatile RAM
994 Save/Restore Non-Volatile RAM Parameters
995 Load Defaults
996-998 Reserved for Diagnostics and Tests
999 Hex Monitor
(P) These functions are only available through use of the optional Portable Control Display
Unit (PCDU).
(L) These functions are only available through use of the Local Control Display Unit (LCDU).
General
Operation