Xylem Goulds ResiBoost RB111512, Инструкция по эксплуатации, Страница: 30 / 40

Alarm Code
Alarm Name Description
Controller Reaction
This information is to be used by professional installers
or qualified personnel only.
A7
Short Circuit
The controller will attempt to restart the pump 3 times.
After the fourth trip, the controller will require a manual
alarm reset. Each subsequent trip takes longer to reset.
WARNING:
Repeated exposure to Short Circuit
conditions can damage the
controller. Do not reset this fault
without fixing the short circuit
condition more than twice.
This fault can be caused by:
• Mechanical binding from debris in pump.
• Electrical failure of the motor.
• Electrical failure of wiring between controller and
motor.
If the alarm occurs:
• The controller will attempt to restart the motor up to
3 times. The time between restarts will vary based
on the severity of the overload and the number of
overloads recorded by the controller. Each
subsequent trip has a longer reset time. If the Error
LED is flashing, the controller will attempt to restart.
If the Error LED is constant red, the controller
requires a manual alarm reset.
• Reset the alarm by following the procedure in
Alarms and warnings .
• Turn off power to the controller. Wait 2 minutes for
the electrical energy to discharge.
• Turn on power to the controller and see if alarm
persists.
• Check the motor wiring
• Check the motor for shorting phase to phase and
phase to ground. Refer to motor’s manual for
information on resistance readings.
If the alarm persists:
• Contact customer service.
A8
Over Voltage
The controller will restart when the input voltage is
within the valid range.
This fault can be caused by:
• The controller detected a high input voltage.
• The Deceleration Time (
dc
in the ADVANCED Menu)
is too fast.
• A check valve in the system is faulty causing the
motor to rotate and generate voltage back to the
controller.
If the alarm occurs:
• Measure the input voltage and ensure it is within
the operating limits for the controller. Refer to
Technical data on page 7 for voltage tolerance
ranges.
• Check the controller nameplate and ensure it is
connected to the correct power source.
• Increase the Deceleration Time (
dc
in the
ADVANCED Menu)
• Verify all check valves are operational.
If the alarm persists:
• Contact customer service
6 Alarms
28 ResiBoost INSTRUCTION MANUAL