Virtual Master - Lenze i950 Commissioning Manual

7.3.3

Virtual master

The technology application allows operation with a virtual master. In this case, a drive in the
network takes on the role of the virtual master while at the same time serving as the first
slave drive. The generated master value is transmitted to the slave drives via the system bus.
Modes of operation
The virtual master offers the following operating modes:
Operating mode/function
Continuous operation
Clocked operation
Loading of starting position
Manual operation in positive direc-
tion of rotation
Manual operation in negative
direction of rotation
Additional functions for all modes of operation
Function
Adjustment of the setpoint velocity
Bring to standstill position
Acceleration to setpoint velocity
Decelerate master value
Additional functions for manual operation operating mode
Function
Accelerate
Manual jog velocity
Decelerate
Configure jerk
System bus in Velocity (0x5021:152)
(0x500B:011)
Application feedback (B)
Set Velocity Virtual Master (0x5045:011)
Analoginput 1 (0x2DA4:005)
Reference Velocity Analoginput 1 (0x5020:009)
Fig. 42: Virtual master as master value source
Parameter
Address Name / setting range / [default setting]
0x2DA4:005 Diagnostics of analog input 1: Scaled percent value
• Read only: x.xx %
Configuring the "Electronic Gearbox" TA
Bit names of the "Virtual master
control signals" parameter
VM continuous
VM cycle
Load VM position
Manual jog positive VM
Manual jog negative VM
Parameter name
Set velocity
Virtual master set position
Virtual master acceleration
Virtual master deceleration
Parameter name
Manual jog acceleration
Manual jog velocity
Manual jog deceleration
Manual jog jerk
Master Value Source
Source Master Values
(0x5020:014)
Source Master Values
(0x5020:014) =
Systembus
Source Master Values
(0x5020:014) =
Systembus
Set Velocity
Parameter index
0x5045:010
0x5045:010
0x5045:010
0x5045:010
0x5045:010
Parameter index
0x5045:011
0x5046:002
0x5046:003
0x5046:004
Parameter index
0x500C:182
0x500C:181
0x500C:183
0x500C:184
Source Master Values (0x5020:014) = Virtual Master
OR Status Signals Virtual Master (0x5045:110), Bit 31 (External Master Values Inactive)
OR Error code (0x603F:000) = 0x7304 (Feedback fault slot B)
Virtual Master
Master Values
Selected Set Velocity VM
(0x5047:001)
Virtual Master
Profile Generator
v
v
max
∆ p
t
VM Acc
VM Startposition (0x5046:001)
VM Dec
VM Zielposition (0x5046:002)
VM Jerk
Info
Current value of the analog input is resolved with 2 decimal places.
Display of the actual value at the analog input, scaled with the following
parameters:
• Minimum value for scaling.
40x2636:013
• Maximum value for scaling.
40x2636:014
Master value sources
Virtual master
Bit
Bit 25
Bit 26
Bit 27
Bit 28
Bit 29
OR AnalogIn 1
Selected Master Velocity
(0x5042:017)
VM Sync Velocity (0x5046:020)
VM Sync Slave Direction (0x5046:030)
(0x5046:003)
(0x5046:004)
(0x5046:005)
103