Festo Контроллеры двигателя SFC-LAC - Manual (Page 178)

5. Commissioning
5−82
Festo P.BE−GDCP−SFC−LACI−PB−E N en 0812NH
5.7.9 Using hardware enable
Reaction
Controller not enabled If the controller enable is not set (no ENABLE signal at the
controller interface and [HMI = off ] on the control panel):
If the hardware enable is missing, the Power" LED flashes.
The SFC−LACI can be parameterised, however, and records the
position of the drive.
Controller enabled If the controller enable is set:
When the hardware enable is removed, the load voltage is
switched off.
Caution
If the drive is not under position control after the removal
of Hardware enable", this may cause injury to people and
material damage
Ĉ If the hardware enable is removed during a current posiĆ
tioning procedure, then the mass continues to move due
to inertia.
Ĉ With vertical or sloping drive mountings, the moving
mass will then slide down.
Also note:
When the hardware enable is removed, the load voltage is
switched off immediately. However, several seconds can
pass before the SFC−LACI reports the error Load Power
Down" and a brake closes, if present.