Fuji Electric FRENIC-VG Series - Data Format (FRENIC-VG ⇒ MICREX-SX); Transmission Format

6.5 SX Bus Interface Card
6-97
Chap. 6
CONTROL OPTIONS
6.5.8 Transmission format
6.5.8.1 Data Format (FRENIC-VG ⇒ MICREX-SX)
(1) When standard format (specified by link No.) is selected
1 Operate state (1 for all ON)
(MSB) (LSB)
15 14 1312 11 1098765432 1 0
BUSY
ERR
-
RL
ALM
DEC ACC
IL
-
TL
NUV
BRK
INT
EXT
REV
FWD
FWD : Running forward TL : Torque limiting RL : Communication selection
REV : Running reverse (1: H30 = 2 or 3)
EXT : DC braking or pre-exciting IL : Current limiting
INT : Inverter shutdown ACC : Accelerating
BRK : Braking DEC : Decelerating ERR : Function code access error
NUV : DC link bus voltage ALM : Batch failure BUSY: Writing function code
 ERR is cleared to "0" when selecting (writing) and polling (reading) of the function code has been
done correctly. If any of selecting or polling is not performed correctly, ERR is set to "1". The error
cause in this case can be checked with the function code M26 (see the table below). When ERR is
set to "1", resolve the cause and perform selecting or polling again. If the operation is successful,
both of ERR and M26 are cleared to "0".
M26 value (HEX.) Write/read error
78 (4EH) Access to unused function code
79 (4FH) Writing to a read-only function code
Writing to a function code (during operation) which cannot be
changed during operation
Writing to a function code which cannot be changed with
FWD/REV ON.
80 (50H) Writing out-of-range data
*1 If multiple errors occur simultaneously, the following priority is applied to the M26 error cause.
Selecting (2) > Selecting (1) > Polling (2) > Polling (1)
(For example, if selecting (2) and polling (1) are faulty, the cause for the selecting (2) error is stored in
M26.)
 BUSY is set to "1" while writing (processing) data. When writing consecutive data, wait for BUSY
to be cleared to "0" and write the next data. A writing request made while this bit is set to "1" is
ignored.
2 Motor speed
(MSB) (LSB)
15 14 1312 11 1098765432 1 0
Motor speed (decimal) x 20000 / maximum speed ⇒ 16-bit data
The maximum speed is set with the inverter function code F03. Obtain a r/min value by calculating
backward using the above formula. If data is negative (complement of 2), it is a reverse speed
command.