ASCII - Command | DREF | |||
Syntax Transmit | DREF [Data] | |||
Syntax Receive | DREF <Data> | Available in | ||
Type | Variable rw | MMI | Yes | |
ASCII Format | Integer8 | CANBus Object Number | 352C (hex) | |
DIM | - | PROFIBUS PNU | 1644 (dec) IND = 1 (dec) | |
Range | 0...34 | DPR | 44 (dec) | |
Default | 0 | |||
Opmode | 8 | Data Type Bus/DPR | Integer8 | |
Drive State | - | Weighting | ||
Start Firmware | 1.0 | |||
Configuration | No | Last Change of this Object | 1.0 | |
Function Group | position loop | EEPROM | Yes | |
Short Description | Direction for Homing |
Description
The DREF parameter can be used to define the preferred direction of motion for a homing operation and for positioning with a modulo-axes. Bits 0..3 are used for homing, Bits 4..7 for modulo-axis (POSCNFG=1). The possible combinations are shown in the table. If a homing mode with zero puls is selected DREF should be set to 2,18 or 34. See also POSCNFG |
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Homing - Direction | Modulo - Direction | |
DREF = 0 | negative | negative |
DREF = 1 | positive | negative |
DREF = 2 | shortest distance | negative |
DREF =4 | negative movement without reversing | >= version 1.30 DREF =4 homing direction negativ (like DREF=0),no positive movement on reference switch or limit switch This setting is only usefull for NREF=1,3. |
DREF = 5 | potitive movement without reversing | >= version 1.30 DREF =5 homing direction positive (like DREF=0),no negative movement on reference switch or limit switch This setting is only usefull for NREF=1,3. |
DREF = 16 | negative | positive |
DREF = 17 | positive | positive |
DREF = 18 | shortest distance | positive |
DREF = 32 | negative | shortest distance |
DREF = 33 | positive | shortest distance |
DREF = 34 | shortest distance | shortest distance |