ASCII - Command DEC    
Syntax Transmit DEC [Data]    
Syntax Receive DEC <Data>   Available in  
Type Variable rw   MMI Yes
ASCII Format Integer16   CANBus Object Number 3522 (hex)
DIM >> ACCUNIT   PROFIBUS PNU 1634 (dec) IND = 1 (dec)
Range 1 .. 32767, VLIM * 4480 (5.41)   DPR 34 (dec)
Default 10    
Opmode 0, 1, 8 (bei EXTPOS=1,4)   Data Type Bus/DPR Integer16
Drive State -   Weighting  
Start Firmware 1.20    
Configuration No   Last Change of this Object 1.9
Function Group Velocity Controller   EEPROM Yes
Short Description Deceleration Rate


The DEC command defines the deceleration ramp for the velocity control loop (in msec) referred to the maximum velocity (the larger value of VLIM and VLIMN). The DEC deceleration/braking ramp is only used for command step changes that result in a velocity decrease (braking). The ACC parameter is used for acceleration.
For a command step from VLIM/VLIMN to 0, the ramp generator generates a stepped ramp (with steps of 250 microseconds) that is completed within the set DEC time.

The DEC braking ramp applies to all command changes, whether they are provided in analog or digital form. Separate braking ramps (DECSTOP/DECDIS) are used for command changes that are generated internally in emergency stop situations (e.g. amplifier fault, or removal of the amplifier enable).

From firmware 3.41 the ramp can be set by different units. Details are shown at parameter ACCUNIT .

REV 2.3:
Put DEC to the minimum delay if a P-position ( EXTPOS = 1,3,4 ) controller is used.