
95
Maintenance, troubleshooting
Fault description
Possible cause of the fault
Troubleshooting
Feedback signal is "lost" in
system operation
Position in the limit range of the
feedback field
Repeat the Teach-In procedure
(see Chapter "16.1. Setting the position
measuring system (Teach-In)")
Check the process valve end posi-
tions during operation against the end
positions in non-operative state of the
system.
Check the pressure supply.
Valve output 2/A1 cannot be
switched off with the control
Magnetic manual control is still
activated
Deactivate the manual control.
Compare Chapter "18.1. Magnetic
manual control"
Valve outputs cannot be
switched off by the control
Mechanical manual control at the
solenoid valve is still activated
Deactivate the mechanical manual con-
trols on the solenoid valves
Compare Chapter "18.2. Mechanical
manual control" on page 91
Faults are signaled by means
of LEDs
Possible causes may vary
depending on the version
Please read the corresponding descrip-
tions of the respective communication
variant in these operating instructions.
(compare Chap. "17.2. Blinking pattern &
fault signaling" on page 86)
No or faulty function of the
process valves
No electrical power supply or com-
munication for the control head
Check the power supply and the com-
munication settings (also refer to detailed
descriptions of the respective versions in
these operating instructions)
No or insufficient pneumatic supply
of the control head
Check the pressure supply and ensure
that supply is sufficient
Incorrect function of the
process valves
Confused pneumatic connection
lines
Check the correct pneumatic connection
of the control head to the
process valve
(for fluid diagrams see chapter
"5.3.2. Structure of the control head
(feedback top)" and the operating
instructions of the corresponding
process valves)
Valves not correctly connected on
electronics module
Check the correct electrical connection
of the solenoid valves -
comp. "Fig. 15: 24 V DC electronics
module"
In the event of any undefined faults, be sure to contact the service department of Pentair Südmo GmbH!
Contact: Email: [email protected]
Telephone: +49(0)9081/803-0
english
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