19-17 Virtual master acceleration
Option:
Function:
Enter here the acceleration for the virtual master in Hz/s.
Virtual master acceleration =
Pulsfrequenz Hz
t s
Example: The virtual master must correspond to an encoder
with 1024 inc/rotation. The maximum speed of 25 encoder ro-
tations per second must be attained in 1 second.
Virtual master acceleration =
25
1
s
x
1024
Incr.
Rev.
1
s
= 25600
Hz
/
s
19-18 Virtual master maximum speed
Option:
Function:
Enter here the maximum speed of the virtual master in Hz.
Virtual master maximum speed =
Increments
Rev
.
x Rev
.
s
Example: The maximum virtual master signal must correspond
to an incremental encoder with 1024 inc/rotation at a rotational
speed of 50 rotations/s.
Virtual master maximum speed =
1024
1
x
50
s
= 51200 1
/
s
19-19 Control source test run (Contr. testrun)
Option:
Function:
This parameter is used to select the control source in test run
mode (par. 33-80 = “1”). There can only be one control source
at a time: Digital inputs or field bus control word. Only exception
is input 27 which is always stop also with field-bus control.
When digital control is selected status signals are updated on
the digital outputs, when field bus control is selected status sig-
nals are updated on digital outputs as well as field bus.
[0]
Digital Inputs
“0” means that all control commands are activated via the digital
inputs according to the description of the terminals.
[1]
Fieldbus
“1” means that all control commands are activated via the field
bus control word according to the description of field bus con-
trol.
NB!
The new control source selected in this parameter
is not active before next power up (power cycle).
3. Programming
Syncronising Controller MCO 350 Operating
Instructions
32
MG.33.Q1.02 - VLT
®
is a registered Danfoss trademark
3