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9.0 warnings and alarms
There are two means of notification of warnings and alarms on
an Design Envelope pump. The keypad tool (lcp) will display
alarm information and in addition to this there are five status
led’s that can be viewed on removal of the inverter cover (see
figure 2, page 3). The table below gives the dierent warnings
andalarms and indicates whether the fault locks the pump. After
Trip locked, the mains supply must be cut and the fault must be
corrected. Reconnect the mains supply and reset (auto-reset by
default) the pump before starting. Wherever a cross is placed
under both Warning and Alarm, this can mean that a warning
precedes the alarm. It can also mean that it is possible to
program whether a given fault is to result in a warning or an
alarm. After a trip, alarm and warning will flash, but if the fault
is removed, only alarm will flash. After a reset, the pump will be
ready to start operation again.
warnings
The display flashes between normal state and warning. A
warning comes up on the first and second line of the display.
alarms
The alarm comes up in the 2. and 3. line of the display.
warning/alarm 2, Live zero fault (Live zero error):
The current signal on terminal 1 is less than 50% of the value set
in parameter 336 Terminal 1, min. scaling .
warning/alarm 4, Phase loss (Mains phase loss):
Phase missing on the supply side. Check the supply voltage
to the inverter.
warning 5 , Voltage warning high (dc link voltage high):
The intermediate circuit voltage (dc) is higher than the
overvoltage limit of the control system, see table on the next
page. The inverter is still active.
no. description warning trip alarm trip locked
2 Live zero fault (Live zero error) × ×
4 Phase loss (Mains phase loss) × × ×
5 Voltage warning high (dc Link voltage high) ×
6 Voltage warning low (dc Link voltage low) ×
7 Overvoltage (dc Link overvolt) × ×
8 Undervoltage (dc Link undervolt) ×
9 Inverter overload (Inverter time) × ×
11 Motor thermistor (Motor thermistor) ×
12 Current limit (Current limit) ×
13 Overcurrent (Over temperature) × ×
14 Earth fault (Earth fault) × ×
15 Supply fault (Switch mode fault) × ×
16 Short-circuit (Curr.short circuit) × ×
17 Standard bus timeout (std Bus timeout) × ×
18 Hpfb bus timeout (hpfb timeout) × ×
33 Out of frequency range (Out freq rng/rot lim) ×
34 hpfb error (hpfb alarm) × ×
35 Inrush fault (Inrush fault) × ×
36 Overtemperature (Over temperature) × ×
37 Internal error (Internal error) × ×
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