Burkert 323219, Быстрый старт

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Pneumatic connection
For double-acting actuators (control function I):
→ Connect working ports A1 and A2 to the respective chamber
of the double-acting actuator.
For safety end positions see Chapter “9.3 Safety end
positions” .
Important information for perfect control behaviour!
To prevent the control behaviour in the upper stroke range
from being negatively influenced by a small pressure
difference
▶
Keep the applied supply pressure at least 0.5...1 bar above
the pressure that is required to move the pneumatic actu-
ator into end position.
The control parameters calibrated with the X.TUNE
function are not ideal for larger fluctuations.
▶
Keep the supply pressure fluctuations as low as possible
during operation (max. ± 10%).
9.3 Safety end positions
The safety end position after the electrical auxiliary power fails
depends on the fluidic connection of the actuator to the working
ports A1 or A2.
9.3.1 Single-acting actuators
Actuator type
Safety end positions after failure of
the
electrical auxi -
liary power
pneumatic
auxiliary power
up
down
down
→ Connection
acc. to “Fig.
18”
univ. air flow
rate:
down
Low
air flow rate:
not defined
up
→ Connection
acc. to “Fig.
19” Control function A
up
down
up
→
Connection
acc. to “Fig.
18”
univ. air flow
rate:
up
Low
air flow rate:
not defined
down
→ Connection
acc. to “Fig.
19” Control function B
Tab. 10: Safety end positions, single-acting actuators
Type 8791 REV.2
english