23
Table 3: Example Command Word Format (S9 Drive)
Bit Function 0 1
15 Command source Local Network
14 Frequency command source Local Network
13 Fault reset N/A Reset
12 Emergency OFF command N/A EOFF
11 Coast stop command N/A Coast stop
10 Run / stop command Stop Run
9 Forward / reverse selection Forward Reverse
High Byte
8 Jog command N/A Jog
7 DC injection braking N/A DC injection cmd.
6 Accel / decel #1/#2 selection #1 #2
5 Reserved -- --
4 Reserved -- --
3 Preset speed 4 OFF ON
2 Preset speed 3 OFF ON
1 Preset speed 2 OFF ON
Low Byte
0 Preset speed 1 OFF ON
Frequency Command
Drive parameter number FA01. The data contained in the frequency command
word is the desired frequency command multiplied by 100, and then converted
to hexadecimal. In other words, if a frequency command of 55.34Hz is
desired, then 55.34 x 100 = 5534, which converted to hexadecimal is 0x159E.
The frequency command high byte (offset 6 or 22) must therefore contain
0x15, and the frequency command low byte (offset 7 or 23) must contain 0x9E.
If the frequency command exceeds limiting drive parameters (such as the
upper limit frequency), the drive will ignore it, maintaining its current setting.
Action Bits / Parameter Number
Parameter action bits and 16-bit parameter register number. Refer to section
10 for a detailed explanation of these items.
Parameter Data
During parameter register writes, this word contains the data to write. Refer to
section 10 for a detailed explanation of this data word
Again, in case of any discrepancies, documentation provided by the drive
manufacturer supersedes the examples given here.
