| 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 | |||
Description
| 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. |