6.4 T-Link Interface Card
6-67
Chap. 6
CONTROL OPTIONS
6.4.8 Transmission format
6.4.8.1 Data format (FRENIC-VG ⇒ MICREX)
(1) Operate state (1 for all ON)
(MSB) (LSB)
0 1 23 4 56789ABCD E F
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
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)
0 1 23 4 56789ABCD E F
Motor speed (decimal) x 20000 / maximum speed => 16-bit data
The maximum speed is set with the function code. 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.
To Next Page
Loading...
