Danfoss VLT series Programming Guide

7.15.3 Parameter: Gear Master Start Distance (0x3902)
This object denes the master distance for gear in procedure (when the slave axis is started to get into synchronization).
The value must be given in Guide value position units. The direction is taken from the Master sync direction bit in the
Controlword (0x6040) (see Illustration 7.9).
NOTICE
The sign of Master Start Distance is represented by the MasterSyncDirection bit in the Controlword (0x6040).
Attribute Value
Index 0x3902
LCP parameter number –
Name Gear master start distance
Object code Var
Data type UNSIGNED32
Sub-index 0x00
Access Read/write
PDO mapping Optional
Value range UNSIGNED32
Default value 0
Table 7.168 0x3902: Gear Master Start Distance
130BF221.10
Start Sync
Start Sync
Sync Position
Sync Position
Positive distance
Negative distance
Negative distance
Positive distance
Positive
master
rotation
Start Sync
Start Sync
Sync Position
Sync Position
0
0
Sign of
Master rotation
Sign of
Master Start Distance
2
(n-1)
– 2
n
2
(n-1)
– 2
n
Negative
master
rotation
Start Sync = TRUE
Illustration 7.9 Synchronization Executed at StartSync Position
NOTICE
Master Rotation direction and MasterStartDistance have the same signs, therefore synchronization is executed.
Servo Drive Parameter Descr... Programming Guide
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Danfoss VLT series Specifications

General

Series	VLT
Category	DC Drives
Output Voltage	0-100% of input voltage
Protection Features	Overvoltage, Undervoltage, Overcurrent, Overtemperature, Short Circuit, Ground Fault
Communication Interfaces	Profibus, CANopen
Enclosure Rating	IP20, IP21, IP55, IP66
Cooling Method	Forced Air Cooling, Convection Cooling
Control Mode	Sensorless Vector, Closed Loop Vector
Ambient Temperature	-10°C to +50°C (14°F to 122°F)