Grundfos Oxiperm Pro OCD-162 Instrucciones De Instalación Y Programación página 47

Error message,
reaction of Oxiperm Pro
31. "fault current input":
– ClO production proceeds.
2
– Alarm relay activated.
– Combined controller and
proportional controller stop.
32. "alarm val 2 ClO2 undershot",
"alarm val 1 ClO2 exceeded",
"alarm val 2 ClO2 exceeded":
– ClO production proceeds.
2
– Alarm relay activated.
Cause
Cable breakage at current input 1
• A water flow meter is connected, and the signal
exceeds the full-scale value of 20 mA.
• A water flow meter with 4-20 mA is selected, and
the signal falls below 3.8 mA.
If this fault appears, the controller is stopped
(proportional and combined controllers).
a) Faulty water flow meter.
b) Faulty current input or controller.
c) Cable breakage between water flow meter and
controller.
d) Water flow meter is connected with 0-20 mA, but
the set value is 4-20 mA.
The set lower or set upper switching point for the
alarm is exceeded or not reached.
Remedy
Call Service.
Call Service to check the water flow meter
and to replace if necessary.
Check the current input and controller.
Supply with a defined current between
0 and 20 mA, and compare with display in
the "main menu > service > water flow
meter" menu.
In case of damaged controller, call Service.
Call Service to replace the cable.
Call Service to correct the software setting.
Call Service.
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