Error
code
Error condition
Suggested action
Er14
Speed error
Stop pump immediately. Power OFF / ON may reset. Or
seek support
Er15
Over current
Stop pump immediately. Power OFF / ON may reset. Or
seek support
Er16
Over voltage
Stop pump immediately. Check supply. Power OFF/ON
may reset
Er17
Under voltage
Stop pump immediately. Check supply. Power OFF/ON
may reset
Er20
Signal out of range
Check analog control signal range. Trim signal as required.
Or seek support
Er21
Over signal
Reduce the analog control signal
Err50
Communication error
Attempt to reset by switching power OFF / ON. Or seek
support
23.3
Error Indication (Remote only)
If an internal error occurs, depending on the error one of the following LED icons will be
displayed.
Status
4-20mA
Running
Remote
stop
Change
pumphead
4-20mA signal
Error
warning
Major drive fault: return
pump to factory
On
A.
Motor stalled/wrong
speed: check
process/system and
switch on/off to reset
On
Flash
B.
Voltage error: switch
on/off to reset pump
Flash
m-qdos-en-02
109