VREF0

ASCII - Command

VREF0

 

 

Syntax Transmit

VREF0 [Data]

 

Syntax Receive

VREF0 <Data>

Available in

 

Type

Variable rw

MMI

No

ASCII Format

Float

CANBus Object Number

3698 (hex)

DIM

-

PROFIBUS PNU

2008 (dec) IND = 0000xxxx (bin)

Range

0.01 .. 2.0

DPR

408 (dec)

Default

0.125

 

Opmode

8

Data Type Bus/DPR

Integer32

Drive State

-

Weightning

1000

Start Firmware

4.78

 

Configuration

No

Revision

1.5

Function Group

Position Controller

EEPROM

Yes

Short Description

Homing Mode Reduction factor

Description

The parameter VREF0 reduces the homing speed, after the load reaches e.g. the reference switch, while searching for a zero pulse of an external encoder. The selection of the source of the zero pulse can be selected by REFMODE. The second homing speed can be reduced by VREF0 in % of VREF.

Example 1:

REFMODE=1 Zeropulse via digital input 1
NREF=1 Homing move with reference switch with zero pulse
VREF=10000 Homing speed 10000 µm/sec
VREF0=0.2 Reduction of the speed to 2000 µm/sec

Starting a homing move, the drive starts to find the reference switch with the speed of 10000 µm/sec. If the reference switch was found, the speed is reduced to 2000 µm/sec and then the search for the zero pulse is started. If the zero pulse was recognized at digital input 1(high level), the homing move is stopped.

Example 2:

REFMODE=2 Zero pulse via digiatl input 2
NREF=5 Zero pulse in one turn of the motor
VREF=10000
VREF0=0.2

The criteria for the search of the zero pulse is fulfilled, so the reference move is directly started with 2000 µm/sec.