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5 Function blocks
5.25 PO, pulse output
PO01
>I
>FS
>FO
>RF
>BF
>P1
>PF
QV>
QF>
230
Control Relay easy800 11/11 MN04902001Z-EN www.eaton.com
PO01AC------------------------Ä M01
PO01E1------------------------Ä M02
Figure 165:Wiring the function block contacts
The contacts of the function block are connected with markers.
Parametric programming of the function block inputs/outputs
When using the function block in the circuit diagram for the first time, use
+
OK to automatically enter the general display of function block parameters,
as shown in the figure. Enter the function block settings here.
Function block: PO pulse output, number 01
PO01
Parameter set can be called via the PARAMETERS menu
+
Number of pulses for the entire distance, value range 0 - 2147483647
>I1
Start frequency, value range 0 - 5000 Hz
>FS
Operating frequency, value range 0 - 5000 Hz
>FO
Frequency change in the acceleration phase [0.001 Hz/step], value range 0 - 65535
>RF
Frequency change in the braking phase [0.001 mHz/step], value range 0 - 65535
>BF
Number of steps in jog mode (0 - 65535)
>P1
Frequency in jog mode (0 - 5000 Hz)
>PF
Current number of completed steps, value range: 0 - 2 147 483 647
QV>
Actual output frequency, value range 0 - 5000 Hz
QF>
Function of the function block
The function block is active if the PO..EN coil is actuated. After you have
parameterized the function block, you can actuate the coil PO..S_. This will
start normal operation. Alternatively, you can also actuate the coil PO..TP and
start the function block in Jog mode.
If the voltage at the coil PO..EN drops out, the pulse sequence at the output
is immediately switched off and the function block is reset.
￫ Bear in mind that a motor with sufficient inertia may not come to a
standstill immediately after the pulse sequence is switched off.
The function block sends 24 V pulse sequences at output Q01 (function
block PO01) or Q02 (function block PO02). The frequency of the pulse
sequence is determined by the parameters that are described in the sections
Normal mode and Jog mode.
Procedure with possible faults for normal and jog mode
•
If the function block detects parameter errors directly at the start, no
pulse sequences are output to the device output.
•
If the function block detects a faulty parameter change during a pulse
sequence, the pulse sequence is reduced in accordance with the brake
ramp.
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