PAGE 6
Aquavar Intelligent Pump Controller
CentriPro
Warning/Alarm
Description
Cause
Remedy
36 — Mains failure
This warning/alarm is only active if
the supply voltage to the frequency
converter is lost and 14– 10 Mains
Failure is NOT set to [0] No Function.
Check the fuses to the frequency
converter and mains power supply to
the unit.
38 — Internal fault
When an internal fault occurs, a code
number defined in the table below is
displayed.
Cycle power to the frequency
converter.
Check that the option is properly
installed.
Check for loose or missing wiring.
It may be necessary to contact
your Xylem supplier or service
department. Note the code number
for further troubleshooting directions.
39 — Heatsink sensor
No feedback from the heatsink
temperature sensor.
The signal from the IGBT Thermal
sensor is not available on the
power card. The problem could
be on the power card, on the gate
drive card, or the ribbon cable
between the power card and gate
drive card.
40 — Overload of digital
output terminal 27
Check the load connected to terminal
27 or remove short-circuit connection.
Check [5–00] Digital I/O Mode and
5–01 Terminal 27 Mode.
41 — Overload of digital
output terminal 29
Check the load connected to terminal
29 or remove short-circuit connection.
Check [5–00] Digital I/O Mode and
[5–02] Terminal 29 Mode.
42 — Overload of digital
output on X30/6 or
overload of digital output
on X30/7
For X30/6, check the load connected
to X30/6 or remove short-circuit
connection. Check 5– 32 Term X30/6
Digi Out (General Purpose I/O Option
Card).
For X30/7, check the load connected
to X30/7 or remove short-circuit
connection. Check 5– 33 Term X30/7
Digi Out (General Purpose I/O Option
Card).
45 — Ground fault 2
Ground (earth) fault on startup.
Check for proper grounding
(earthing) and loose connections.
Check for proper wire size.
Check motor cables for shortcircuits
or leakage currents.
