Festo HSP AE Series, Manual

Page: 129 / 174

5. Commissioning with the control panel
5−37
Festo P.BE−HSP−AE−IO−EN en 0510NH
Switch−on behaviour In order to guarantee that the system starts correctly, all
input signals must be stable when the power supply is
switched on (min. 1 s). Only then are the input signals
scanned.
If a fault occurs when the device is switched on, the START
signal
> 1 will not be observed until the FAULT signal is
cancelled.
If there are no faults and the enable is active (ENABLE signal
= 1), the controller reports readiness for operation, i.e.
(READY signal
>
1 and MC signal = 1 (Motion Complete).
Please note
Positioning sets with relative positioning specification can
if necessary also be started without reference travel. Posi
tioning sets with absolute positioning specification can
only be started after reference travel. In operation, refer
ence travel must be carried out each time the device is
switched on.
Start reference travel If there are no faults and enable is active (ENABLE = 1), refer
ence travel (input word I1 ... I4 = 1, positive edge at START
input) can be started. When the START signal (
>
1) is set,
the MC signal (Motion Complete) is reset (
>
0), the drive
carries out the reference travel.
Disable Reference travel can be interrupted like any positioning set
with a falling edge at the ENABLE input (
> 0).
Fault If reference travel is interrupted by a cancelled ENABLE signal
or due to a fault, the controller will set internally the FAULT
signal (
>
1, HOMING ERROR). The MC signal and the READY
signal will be reset
>
0.
When reference travel has been successfully completed, the
MC signal is set again (
> 1). After that, any number of posi
tioning procedures can be carried out.