Eaton easyE4 Manual page 372

6. Function blocks
6.1 Manufacturer function blocks
368
The function block and its parameters
Function block inputs
Description
(Bit)
EN 1: Activates the function block.
EN Enable of the function block on status 1.
The operations Start positioning job (S_) or
Jog mode (TP) can be executed when the
function block is enabled.
Disable the function block on status 0.
The function block Reset is carried out when
there is falling edge from 1 to 0.
S_ The positioning job will start when there is a
rising edge.
An active positioning job will be signaled
with AC =1.
BR Aborts the ongoing positioning job when
there is a rising edge.
TP Activates the Jog mode on status 1
The on duration TP = 1 determines the type of
Jog mode.
(DWord)
I1 Number of pulses
FS Start Frequency
FO Operating frequency
easyE4 10/19 MN050009 EN www.eaton.com
Note
The checkbox for the
Function block release by EN is necessary
parameter must first be enabled
Caution! In normal mode, always stop pos-
itioning jobs with the BR function block input.
In this case, the step sequence frequency will
be reduced according to the deceleration ramp
and the motor will decelerate smoothly.
A stop with EN= 0 would cause an abrupt stop
of the motor and a possible loss of the ref-
erence point if this would be dragged further by
the moved load.
When a positioning job is activated, the accel-
eration, operating and braking phases are
executed in succession.
If a positioning job is already activated, a
renewed rising edge 0 -> 1 at S_ will not cause
a new job to be started.
After the positioning job is aborted, the function
block now runs the braking phase, i.e. a
delayed motor stop is executed.
The bit output AC is only set to 0 when the
braking phase has been completed.
Two operating mode are available in Jog mode
for diagnostics and testing.
1. Positioning with a preset number of steps
TP on duration ≦ 0.5 seconds
The motor moves by the number of steps
defined at P1.
2. Positioning with a specified jog frequency -
manual mode
TP on duration > 0.5 seconds
The motor will be accelerated to the jog fre-
quency set at PF.
For number of pulses enter the total number
pulses for the entire sequence, consisting of
the three individual acceleration, operating and
braking phases.
Integer value range:
0...+2 147 483 647
Integer value range:
0...5000 Hz
Integer value range:
0...5000 Hz