Magnetek TM7310rev01 Benutzerhandbuch

The multi-step speed reference function is one 
possible way for the drive to accept speed 
command.  To use this function, the user can 
enter up to fifteen speed commands (CMD1 – 
CMD15) and assign four logic inputs as speed 
command selections.   
 
Note: CMD0 is reserved for zero speed, 
therefore is not accessible to the user for 
programming. 
 
During operation, the user will encode a binary 
signal on the four logic inputs that determines 
which speed command the software should 
use. The user need not use all four speed 
command selection bits; if no logic input is 
specified for one of the selection bits, that bit is 
always zero. For instance, if no logic input is 
specified for the most significant bit (B3), that 
bit will be zero and the user can select from 
CMD0 - CMD7. 
 

Since these speed commands are selected 
with external contacts, a new command 
selection must be present for 50ms before it is 
recognized.  
 

 

logic input multi-step 

STEP REF 

speed 

B3 B2 B1 B0 command 

0 0 0  0  CMD0 
0 0 0  1  CMD1 
0 0 1  0  CMD2 
0 0 1  1  CMD3 
0 1 0  0  CMD4 
0 1 0  1  CMD5 
0 1 1  0  CMD6 
0 1 1  1  CMD7 
1 0 0  0  CMD8 
1 0 0  1  CMD9 
1 0 1  0  CMD10 
1 0 1  1  CMD11 
1 1 0  0  CMD12 
1 1 0  1  CMD13 
1 1 1  0  CMD14 
1 1 1  1  CMD15 

 

 

An example of the use of the multi-step 
command is as follows: 

•  All speed commands are positive. 

•  CMD0 specifies zero speed. 

•  CMD1 specifies leveling speed. 

•  CMD2 specifies inspection speed. 

•  CMD3 specifies an overspeed limit. 

•  CMD4 – CMD15 specify different top 

speeds depending on number of floors in 
the run. 

 

For typical use, the user will have all speed 
commands to be positive, in which case logic 
inputs (UP/DWN or RUNUP & RUNDOWN) 
must also be specified to determine up or 
down direction. It is possible for the user to 
specify both positive and negative values for 
CMD1 - CMD15, in which case logic input 
bit(s) are not needed.

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