Elin EBG ELVOvert SX, Operating Manual

Page: 47 / 56

SX - Operating- & Service instruction - 8 074 667.02/02 - page 45
Trip messages
The frequency inverters are equipped with protection functions against overcurrent, overvoltage, undervoltage a.s.o.
If a protection function is engaged, the output voltage is shut down, motor coast to a halt and the inverter holds this condi-
tion until it is reset.
Trip message Description Cause Remedy
E1, E31 Overcurrent or overtemperature Is the nom. motor current higher Select a bigger frequency
in the power module in a than the nom. inverter current ? inverter.
static condition
Was there a sudden load Avoid sudden overloads
increase or is the motor or select a bigger frequency
stalled ? inverter and motor.
Are the motor terminals Check if motor cables and/or
U, V, W short circuited ? the motor are short circuited.
E3 , E33 Overcurrent or overtemperature Is the acceleration time adjusted Increase the acceleration time.
in the power module too short ?
during acceleration
Are the motor terminals Check if motor cables and/or
U, V, W short circuited ? the motor are short circuited.
Is the voltage boost F8 Decrease F8.
adjusted too high ?
Is the motor stalled ? Check motor load and the
starting torque.
E2, E32 Overcurrent or overtemperature Is the deceleration time Increase deceleration time.
in the power module adjusted too short ?
during deceleration
Are the motor terminals Check if motor cables and/or
U, V, W short circuited ? the motor are short circuited.
Is the braking unit damaged ? Check the braking unit.
E4, E34 Overcurrent or overtemperature Is the allowed ambient Check the ambient
in the power module temperature exceeded ? temperature.
during stand still
E5 Internal motor protection The internal electronic motor Select a bigger frequency
is engaged protection has engeged due inverter and motor or check
to an overload of the the adjustment of the electronic
connected motor motor protection.
The frequency inverter is in The output current is higher Select a bigger frequency
an overload condition than the nom. inverter current inverter.
E6 The braking duty (adjusted via Is the deceleration time Increase deceleration time.
A38) is exceeded adjusted too short ?
(ELVO vert SX 5,5 kW and
7,5 kW only) Is the duty time adjusted Increase the duty time.
too low ?
E7 DC-link overvoltage The motor was operated Tieflaufzeit verlängern
regenerative
Deceleration time ? Use a braking unit and/or
braking resistors.