installation &
operating instructions
Design Envelope 4200h & 4280
End Suction Horizontal Pumping Units
43
7.2 warning summary for interfaces
warning
number
name warning description
1 vsd over
temperature
The temperature of a vsd or motor component is near the thermal warning limit. Check that the
motor, fan and vsd cooling is functioning correctly. Verify that the pump is not overloaded. If the
warning persists, contact an Armstrong Technical Service representative.
2 vsd over current The vsd has detected current exceeding the warning 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 warning 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 warning persists, contact an Armstrong
Technical Service representative.
4 Internal vsd voltage An internal voltage generated by vsd is out of range. If the warning persists, contact an Armstrong
Technical Service representative.
5 Internal vsd An internal warning in the vsd has occurred. If the warning persists, contact an Armstrong
Technical Service representative.
6 Reserved
7 vsd startup A warning occurred during the startup of the motor. Turn o the power to the pump and verify
that the motor can be turned using hand mode control. If the warning persists after powering up
contact an Armstrong Technical Service representative.
8 Other vsd There has been an unknown warning condition generated by the vsd. If the alarm persists, contact
an Armstrong Technical Service representative.
9 vsd communication There is a communication issue between the control card and vsd.
10 vsd speed The speed set by the vsd is not within tolerance. If the alarm persists, contact an Armstrong
Technical Service representative.
11 vsd wiring There is an issue in wiring to the vsd. Check the wiring to the motor from the vsd. If any I/O are
used on the vsd, verify that there is continuity and no shorts for the connections.
12 System over
temperature
The temperature measured by the control card is approaching the recommended operating
conditions.
13 System under
temperature
The temperature measured by the control card is approaching the recommended operating
conditions.
14 Battery under
voltage
The battery voltage is low. Replace the battery with cr2032 type cell.
15 bms communication
loss
bms communication has been lost.
16 vsd communication
loss
The communication with the vsd and the control card has stopped.
17 Invalid vsd
parameter
The control card has specified an invalid vsd parameter.
18 vsd initialization
failure
The initialization of the vsd through Modbus has failed. Cycle power to the pump to re-initialize.
19 vsd speed set failure The speed could not be set by the controller. Check the connections between the vsd and
control card.
20 vsd start set failure The controller could not start the motor. Check the connections between the vsd and control card.
21 Sensorless error The sensorless map that was entered has an error please refer to the I & O Manual for
further details.
22 Hand mode timeout The pump has been in hand mode too long. Consider setting to automatic mode to save energy.
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