Burkert Type 8686 - Manual (Page 42)

42
Malfunctions
malfunction cause and remedial action
AS-Interface
bus status
LEDs off No or inadequate supply voltage
→
Check contact of ribbon cable terminal with
AS-Interface line
→
Ensure supply voltage is present on the AS-
Interface line
Tab. 16: Malfunctions
14 shuTDOWn
14.1 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 removal.
▶ Removal may be carried out by authorized technicians only and
with the appropriate tools.
14.2 Disassembly
procedure:
→
Turn off the pressure and vent the lines.
→
Switch off the power supply.
1. Pneumatic connection (control head Type 8686 only)
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.
→
Loosen pneumatic connection.
→
Release the pneumatic connection to the actuator.
3. Mechanical connections
→
Release the fastening screws.
→
Pull the feedback head / control head up and out.
English
Type 8685 / 8686