Armstrong 4380 - Warnings and Recommendations; 7.1 Alarm Messages

installation &
operating instructions
Design Envelope 4300 & 4380
Vertical In-line Pumping Unit
32
7.0 warnings and alarms
7.1 alarm messages
category alarm description troubleshooting
Over Temperature The temperature of a vfd or motor com-
ponent is exceeding the thermal alarm
limit.
Check that there is some pump component that is hot. Then verify
that the motor and vfd cooling is functioning correctly. Wait until
components have cooled before returning to service. If problem per-
sists after powering up again contact Armstrong Technical Service.
Over Current Several possible causes:
• There is a discharge from the output
phases to earth.
• A current limit has been exceeded in
the vfd.
• The motor is being overloaded
Turn o the power to the pump and remove the fault by preforming
the following:
• Verify with a megohmmeter between ground and the motor leads
to check for any faults.
• Check that the motor can be turned.
• Reduce the motor speed to reduce the load.
If the alarm persists after powering up again contact Armstrong
Technical Service
External Voltage vfd input voltage is out of range Measuring 3 phase to see iif the voltage coming to vfd is matching
with the settings -Check the fuses measure voltage.If the alarm per-
sists after powering up again contact Armstrong Technical Service.
Internal Voltage An internal voltage generated by vfd is
out of range
Contact Armstrong Technical Service.
Internal An internal error to the vfd occurred. Cycle power to the pump and check if the alarm reoccurs. If it does,
contact Armstrong Technical Service.
Parameter The settings to control the vfd are not
correct.
Check the vfd parameters on the control card.
Startup An error occurred during the startup of
the motor.
Turn power o to the pump. Check that the motor can be turned.
Turn power on to the pump, if the alarm returns after powering up
again, contact Armstrong Technical Service.
Other An internal vfd alarm has occurred. Cycle power to the pump and check if the alarm reoccurs. If it does,
Contact Armstrong Technical Service
Communication There is a communication issue between
the control card and vfd.
Check the connections between the control card and the vfd.
Speed The speed set by the vfd is not within
tolerance.
Cycle power to the pump. If the alarm re-occurs, contact Armstrong
Technical Service.
Wiring There is an issue in wiring to the vfd Check the wiring to motor. -Check Analog/Digital I/O and motor
connections