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Description of Functions
9.2.2
Open-loop Control
Overview
In the "Control" mode, voltages of varying sizes or frequencies (if incre-
ments are used) with selectable magnitudes are specified and then used to
perform a controlled movement. The direction of movement is determined by
way of direction keys (R+ or R–).
The actual value of the axis is updated at the same time.
Note
A control, which may have been activated by a controller enable, will be
interrupted while the voltage/frequency is being output. After the Jogging
signals R+ or R– have died off, control is referred to the new actual value,
and reinstated after the axis comes to a stop, if the controller enable is still
active when the axis stops.
Voltage/Frequency
The voltage/frequency is defined with job No. 2.
Values
You can choose between two mutually independent voltage/frequency values
(level 1 and level 2) with the mode parameter (BP).
Voltage (levels 1/2)
Frequency (levels 1/2):
The values for the voltage levels can be changed during movement.
Handling by the
The table below gives you an overview of how to handle this mode.
User
Triggering of Move-
Note
Please see also Section 9.1.3!
Control Actions
The control and checkback signals are handled in the same way as in "Jog-
ging" mode.
9-16
Name
Lower Input Limit
Level selection
ment, Direction (R)
BP = 1
R+ or R–
"level-controlled"
BP = 2
Upper Input Limit
0
10 000
0
1 000 000
Speed
Value of voltage/frequency level 1
Value of voltage/frequency level 2
FM 453 Servo Drive / Step Drive Positioning Module
C79000-G7076-C453-01
Unit
mV
Hz
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