Mitsubishi Electric FR-A7NCA Instruction Manual page 10

PRE-OPERATION INSTRUCTIONS
(2) For the FR-A740-00770 to 12120-EC
Check the SERIAL indicated on the Serial number sticker shown below.
Serial number sticker example
FR-CA70-EC
Control unit type
The SERIAL consists of 1 version symbol, 2 numeric
characters or 1 numeric character and 1 alphabet letter
indicating year and month, and 3 numeric characters
indicating control number.
Month is indicated as 1 to 9, X (October), Y (November),
and Z (December).
• To check the SERIAL, the front cover must be removed.
For the removal of the front cover, refer to the inverter manual.
Compatible SERIAL number list
Type
FR-A740-00023 to 00620-EC
FR-A740-00770 to 12120-EC
2
Symbol
Year
Month
SERIAL
67
SERIAL (Serial No.)
SERIAL (the first three digits)
E67 or later
D67 or later
U V W