Xylem IM043 AQUAVAR Variable Speed Pump Control - Manual (Page 9)

8
8. The AQUAVAR controller has electronic safety devices which will stop the motor in the event of
electrical or thermal faults. This does not remove power to the AQUAVAR controller
control head.
9. The system must be properly grounded before being put into operation.
10. High voltage tests of the AQUAVAR controller inverter may damage the electronic components.
Before carrying out such a test, bridge the incoming and outgoing terminals L1 - L2 - L3 - U - V -
W. Isolate the motor from the AQUAVAR controller drive to avoid incorrect capacitor metering
inside the AQUAVAR controller.
Safety Instructions
TouChing TheSe ComPonenTS SeriouSly endangerS life! Voltages of up to
800 volts are possible (higher if there is a fault).
Before removing the AQUAVAR controller drive top cover, the system must be dis-
connected from the main power supply. After switching off the power supply, you
must wait at least 5 minutes before starting work on or inside the AQUAVAR con-
troller drive head. This allows the capacitors in the circuit to be discharged by the
discharge resistors.
Note
Repair of electrical faults can lead to the automatic restart of the motor and pump.
You must remove all main line power to the AQUAVAR controller before attempting
to correct a fault.
Note
FAILuRE TO DISCONNECT AND LOCkOuT ELECTRICAL POWER AND
WAIT FIvE MINuTES FOR CAPACITOR DISCHARgE BEFORE SERvICINg
AQUAVAR CONTROLLER CAN CAuSE SHOCk, BuRNS, OR DEATH.
WARNINg!
Care must be taken when connecting external control wires and jumpers to avoid short circuit to neighboring components.
WARNING
hazardous voltage
can shock, burn or
cause death.
Note