installation &
operating instructions
Design Envelope 4300 & 4380 Vertical
In-line pumping unit with ivs drive
56
7.0 warnings and alarms
7.1 alarm summary for interfaces
alarm
number
name alarm description
1 vsd over
temperature
The temperature of a vsd or motor component is exceeding the thermal alarm limit. Turn o
the power to the pump and verify that the motor, fan and vsd cooling is functioning correctly.
Verify that the pump is not overloaded. Wait until hot components have cooled before returning
to service and if the alarm persists after powering up contact an Armstrong Technical Service
representative.
2 vsd over
current
The vsd has detected current exceeding the safe limit. Turn the pump o. (If there is a discharge
from the output phases to earth it can be verified by checking for any faults with a megohmmeter
between ground and the motor leads). If a current limit has been exceeded in the vsd check that
the motor can be turned. If the pump is being overloaded reduce the pump speed using hand
mode control. If the alarm persists after powering up contact an Armstrong Technical Service
representative.
3 External vsd
voltage
The voltage into the vsd is out of range. Verify that the correct voltage required to operate the vsd
is present by measuring each of the 3 phases. If the alarm persists after cycling power to the pump,
contact an Armstrong Technical Service representative.
4 Internal vsd
voltage
An internal voltage generated by vsd is out of range. If the alarm persists after cycling power to
the pump, contact an Armstrong Technical Service representative.
5 Internal vsd An internal error in the vsd has occurred. If the alarm persists after cycling power to the pump,
contact an Armstrong Technical Service representative.
6 vsd parameter One or more of the parameters to control the vsd are not correct. Check the settings on the
control card. If the alarm persists after cycling power to the pump, contact an Armstrong Technical
Service representative.
7 vsd startup An error occurred during the startup of the motor. Turn o the power to the pump and verify
that the motor can be turned by using hand mode control. If the alarm persists after powering up
contact an Armstrong Technical Service representative.
8 Other vsd There has been an unknown alarm condition generated by the vsd. If the alarm persists after
cycling power to the pump, contact an Armstrong Technical Service representative.
9 vsd
communication
There is a communication issue between the control card and vsd. Turn o the power to the pump
and check the connections between the control card and the vsd.
10 vsd speed The speed set by the vsd is not within tolerance. If the alarm persists after cycling power to the
pump, contact an Armstrong Technical Service representative.
11 vsd
initialization
failure
The control card was not able to receive the initial parameters correctly. Please try to restart the
pump. If the alarm persists after restart, contact an Armstrong Technical Service representative.
To Next Page
