Burkert Type 8644 - Manual (Page 63)

63
Maintenance, Troubleshooting
MainTenance, TrOuBleshOOTing 9.
safety instructions 9.1.
DANgEr!
risk of injury from high pressure in the equipment!
Before dismounting pneumatic lines and valves, turn off the pressure and vent the lines. •
risk of injury due to electrical shock!
Before reaching into the device or the equipment, • 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 be carried out by authorized technicians only and with the appropriate tools! •
risk of injury from unintentional activation of the system and an uncontrolled restart!
Secure system from unintentional activation. •
Following maintenance, ensure a controlled restart. •
Troubleshooting 9.2.
Malfunction possible cause remedial action
Valves do not switch No or inadequate operating voltage Check the electrical connection
→
Ensure the operating voltage according to
→
type plate.
Manual actuation not in neutral
position Move manual actuation to zero position
→
Inadequate or no pressure supply Design the pressure supply with the largest
→
possible volume (even for upstream devices
such as pressure controllers, maintenance
units, shut-off valves, etc.)
Minimum operating pressure ≥ 2.5 bar
Typ 8644
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