Burkert Type 8686 - Manual (Page 39)

39
Safetypositions
11 safeTy pOsiTiOns
Safety positions after failure of the electrical or pneumatic auxiliary
power:
actuator
type
designation
safety positions after failure
of the auxiliary power
electrical pneumatic
up
down
single-acting
Control
function A
down down
up
down
single-acting
Control
function B
up up
Tab. 15: Safety positions
12 mainTenance
12.1 safety instructions
Danger!
risk of injury from high pressure in the equipment/device.
▶ Before working on equipment or device, switch off the pressure
and deaerate/drain lines.
risk of electric shock.
▶ Before working on equipment or device, switch off the power
supply and secure to prevent reactivation.
▶ Observe applicable accident prevention and safety regulations
for electrical equipment.
Warning!
risk of injury from improper maintenance.
▶ Maintenance may only be carried out by authorized technicians
with the appropriate tools.
risk of injury from unintentional activation of the system and
uncontrolled restart.
▶ Secure system from unintentional activation.
▶ Following maintenance, ensure a controlled restart.
English
Type 8685 / 8686