Grundfos Oxiperm Pro OCD-162 - 9 Fault Finding

English (GB)
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9. Fault finding
This section includes an overview of alarm messages, a list of possible errors and remedies, and a description of how to test the functions
of the system.
9.1 Fault overview
The alarm messages are shown in the initial display.
Activated relays can be deactivated with the [Esc] button. An
exception is the warning relay, which is activated by the signal
"empty signal int. batch tank". The warning relay is only
deactivated, if the fault is removed. For trouble-free operation of
the system eliminate the cause of the faults.
Alarm message
Reaction
Alarm
LED
Warning
LED
Alarm
relay
Warning
relay
Event
list
Remark
lower limit undershot ● - ● --
upper limit exceeded ● - ● --
ClO2 dosing time exceeded ● - ● - - dosing stop
fault of cleaning motor ● - ● - - dosing stop (only setpoint or combined control)
water sensor fault ● - ● - - dosing stop (only setpoint or combined control)
calibrate ClO2 sensor ● ----
calibrate pH sensor ● ----
calibrate ORP sensor ● ----
temperature error ● ---●
low level HCl - ● - ●●
empty HCl ● - ● - ● HCl pump stops
low level NaClO2 - ● - ●●
empty NaClO2 ● - ● - ● NaClO
2
pump stops
timeout HCl pump ● - ● - ● production terminates
timeout NaClO2 pump ● - ● - ● production terminates
timeout 1st dilution water ● - ● - ● production terminates
timeout 2nd dilution water ● - ● - ● production terminates
timeout 3rd dilution water ● - ● - ● production terminates
timeout production ● - ● - ● production terminates
timeout flushing ● - ● - ● production terminates
level int. batch tank ● - ● - ● dosing stop
level ext. batch tank ● - ● - ●
annual maintenance due - ● ---
maintenance date exceeded ● ----
fault current input ● - ● --
wire breakage current output 1 ● - ● --
wire breakage current output 2 ● - ● --
external failure ● - ● - - dosing stop, production terminates
empty signal int. batch tank - ● - ●●
dosing stop (20 s + time proportional to current
dosing rate) after empty signal
check ClO2 batch - ● -
●●
check water pressure - ● --●
fault reaction tank ● - ● - ● production terminates
fault int. batch tank ● - ● - ● production terminates
fault ext. batchtank ● - ● - ● production terminates
external dosing stop -- - -● dosing stop
Note
If an alarm occurs, which is written into the event list,
the Oxiperm Pro system must not be switched off.
If the system is switched off while writing an alarm
into the event list, all settings are reset to factory
settings.